Gennum GS9092A Genlinx iii 270mb/s serializer for sdi and dvb-asi Datasheet

GS9092A GenLINX® III 270Mb/s Serializer for SDI and DVB-ASI
Key Features
Description
•
SMPTE 259M-C compliant scrambling and NRZI to NRZ
encoding (with bypass)
•
DVB-ASI sync word insertion and 8b/10b encoding
•
Integrated Cable Driver
The GS9092A is a 270Mb/s serializer with an internal FIFO
and an integrated cable driver. It contains all the necessary
blocks to realize a transmit solution for SD-SDI and
DVB-ASI applications.
•
Integrated line-based FIFO for data alignment/delay,
clock phase interchange, DVB-ASI data packet
insertion, and ancillary data packet insertion
•
User selectable additional processing features
including:
Š ANC data checksum, and line number calculation
and insertion
Š TRS and EDH packet generation and insertion
Š illegal code remapping
•
Enhanced Gennum Serial Peripheral Interface (GSPI)
•
JTAG test interface
•
+1.8V internal cable driver and core power supply
•
Optional +1.8V or +3.3V digital I/O power supply
•
Small footprint (8mm x 8mm)
•
Low power operation (typically 200mW)
•
Pb-free and RoHS compliant
Applications
•
SMPTE 259M-C Serial Digital Interfaces
•
DVB-ASI Serial Digital Interfaces
In addition to serializing the input data stream, the
GS9092A performs NRZI-to-NRZ encoding and scrambling
as per SMPTE 259M-C when operating in SMPTE mode.
When operating in DVB-ASI mode, the device will insert
K28.5 sync characters and 8b/10b encode the data prior to
serialization.
Parallel data inputs are provided for 10-bit multiplexed
formats at SD signal rates. A 27MHz parallel clock input
signal is also required.
The integrated cable driver features an adjustable signal
swing and common mode operating point offering fully
compliant SMPTE 259M-C cable driver connectivity.
The GS9092A includes a range of data processing functions
such as automatic standards detection and EDH support.
The device can also insert TRS signals, re-map illegal code
words, and generate and insert SMPTE 352M payload
identifier packets. All processing features are optional and
may be enabled/disabled via external control pin(s) and/or
host interface programming.
The GS9092A also incorporates a video line-based FIFO.
This FIFO may be used in four user-selectable modes to
carry out tasks such as data delay, clock phase interchange,
MPEG packet insertion and clock rate interchange, and
ancillary data packet insertion.
The device may also be used as a low-latency
parallel-to-serial converter where the SMPTE scrambling
block will be the only processing feature enabled.
The GS9092A is Pb-free, and the encapsulation compound
does not contain halogenated flame retardant (RoHS
compliant).
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
www.gennum.com
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GS9092A Functional Block Diagram
LF-
LF+
RSV
LB_CONT
PCLK
STAT[2:0]
DETECT_TRS
DVB_ASI
IOPROC_EN
BLANK
SMPTE_BYPASS
WR_CLK
WR_RESET
PLL
Programmable
I/O
dvb_asi
bypass
SDO_EN
FIFO
TRS Insertion
Data Blank
Code Remap &
Flywheel
SMPTE
352M
Generation
DVB-ASI Sync
Word Insert &
8b/10b Encode
EDH
Generation
& SMPTE
Scramble
SDO
P --> S
SDO
RSET
HOST Interface &
JTAG
RESET
SDIN_TDI
SDOUT_TDO
SCLK_TCK
CS_TMS
JTAG_EN
FIFO_EN
Figure A: GS9092A Functional Block Diagram
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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Contents
Key Features........................................................................................................................................................1
Applications.........................................................................................................................................................1
Description...........................................................................................................................................................1
GS9092A Functional Block Diagram...........................................................................................................2
1. Pin Out...............................................................................................................................................................5
1.1 Pin Assignment ..................................................................................................................................5
1.2 Pin Descriptions ................................................................................................................................6
2. Electrical Characteristics ......................................................................................................................... 11
2.1 Absolute Maximum Ratings ....................................................................................................... 11
2.2 DC Electrical Characteristics ..................................................................................................... 11
2.3 AC Electrical Characteristics ..................................................................................................... 13
2.4 Solder Reflow Profiles .................................................................................................................. 15
2.5 Host Interface Maps ...................................................................................................................... 16
2.5.1 Host Interface Map (Read only registers) .................................................................. 18
2.5.2 Host Interface Map (R/W configurable registers) ................................................... 20
3. Detailed Description.................................................................................................................................. 22
3.1 Functional Overview .................................................................................................................... 22
3.2 Parallel Data Inputs ....................................................................................................................... 23
3.2.1 Parallel Input in SMPTE Mode....................................................................................... 24
3.2.2 Parallel Input in DVB-ASI Mode................................................................................... 24
3.2.3 Parallel Input in Data-Through Mode......................................................................... 24
3.2.4 I/O Buffers............................................................................................................................ 24
3.3 Internal FIFO Operation .............................................................................................................. 25
3.3.1 Video Mode ......................................................................................................................... 26
3.3.2 DVB-ASI Mode ................................................................................................................... 27
3.3.3 Ancillary Data Insertion Mode...................................................................................... 31
3.3.4 Bypass Mode ....................................................................................................................... 35
3.4 SMPTE Mode ................................................................................................................................... 35
3.4.1 I/O Status Signals............................................................................................................... 35
3.4.2 HVF Timing Signal Inputs............................................................................................... 35
3.5 DVB-ASI Mode ............................................................................................................................... 36
3.5.1 Control Signal Inputs........................................................................................................ 36
3.6 Data-Through Mode ..................................................................................................................... 37
3.7 Additional Processing Functions .............................................................................................. 37
3.7.1 Input Data Blank................................................................................................................ 37
3.7.2 Automatic Video Standard Detection......................................................................... 37
3.7.3 Packet Generation and Insertion.................................................................................. 38
3.8 Parallel-to-Serial Conversion .................................................................................................... 48
3.9 Serial Digital Data PLL ................................................................................................................. 48
3.10 Serial Digital Output .................................................................................................................. 49
3.10.1 Output Swing.................................................................................................................... 49
3.10.2 Serial Digital Output Mute Control ........................................................................... 49
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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3.10.3 Output Return Loss Measurement ............................................................................ 49
3.11 Programmable Multi-function I/O ........................................................................................ 51
3.12 Low Latency Mode ...................................................................................................................... 52
3.13 GSPI Host Interface ..................................................................................................................... 53
3.13.1 Command Word Description ...................................................................................... 54
3.13.2 Data Read and Write Timing ....................................................................................... 54
3.13.3 Configuration and Status Registers........................................................................... 56
3.14 JTAG Operation ........................................................................................................................... 57
3.15 Device Power Up ......................................................................................................................... 58
4. References & Relevant Standards ......................................................................................................... 58
5. Application Information .......................................................................................................................... 59
5.1 Typical Application Circuit ........................................................................................................ 59
6. Package & Ordering Information .......................................................................................................... 60
6.1 Package Dimensions ..................................................................................................................... 60
6.2 Recommended PCB Footprint ................................................................................................... 61
6.3 Packaging Data ............................................................................................................................... 61
6.4 Package Marking ........................................................................................................................... 62
6.5 Ordering Information ................................................................................................................... 62
Revision History .............................................................................................................................................. 62
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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1. Pin Out
VCO_VDD
FIFO_EN
DETECT_TRS
BLANK
SMPTE_BYPASS
CORE_GND
DVB_ASI
RSV
CORE_VDD
PCLK
IO_VDD
PLL_GND
LB_CONT
1
VCO_GND
LF-
LF+
1.1 Pin Assignment
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
IO_GND
2
41
DIN9 (INSYNCIN)
PLL_VDD
3
40
DIN8 (KIN)
CD_VDD
4
39
DIN7
SDO
5
38
DIN6
SDO
6
37
DIN5
CD_GND
7
36
DIN4
NC
8
35
DIN3
RSET
9
34
DIN2
33
DIN1
32
DIN0
GS9092A
XXXXE3
YYWW
GENNUM
CORE_VDD
14
15
16
17
18
19
20
21
22
23
24
25
26
27
29
28
IO_GND
IO_VDD
RESET
RSV
WR_CLK
STAT2
30
STAT1
13
IO_GND
JTAG/HOST
STAT0
WR_RESET
RSV
31
IO_VDD
12
SDIN_TDI
IOPROC_EN
SDOUT_TDO
11
CORE_GND
SDO_EN
SCLK_TCK
10
CS_TMS
VBG
Center Pad
(bottom of package)
Figure 1-1: Pin Assignment
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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1.2 Pin Descriptions
Table 1-1: Pin Descriptions
Pin Number
Name
Timing
Type
Description
1
LF-
Analog
Input
Loop filter component connection. Connect to LF+ through a
capacitor. See Typical Application Circuit on page 59.
2
PLL_GND
Analog
Input
Ground connection for phase-locked loop. Connect to GND.
Power
3
PLL_VDD
Analog
Input
Power
4
CD_VDD
Analog
Input
Power
5, 6
SDO, SDO
Analog
Output
Power supply connection for phase-locked loop. Connect to +1.8V
DC.
Power supply connection for serial digital cable driver. Connect to
+1.8V DC
Serial digital differential output pair.
NOTE: these output signals will be forced into a mute state if RESET
is LOW.
7
CD_GND
Analog
Input
Ground connection for serial digital cable driver. Connect to GND.
Power
8
NC
–
–
No connect.
9
RSET
Analog
Input
An external 1% resistor connected between this input and CD_VDD
is used to set the SDO / SDO output amplitude.
10
VBG
Analog
Input
Bandgap filter capacitor. Connect as shown in the Typical
Application Circuit on page 59
11
SDO_EN
Non
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible
Synchronous
Used to enable or disable the serial digital output.
When set LOW by the application layer, the serial digital output
signals SDO and SDO are muted.
When set HIGH by the application layer, the serial digital output
signals are enabled.
SDO and SDO outputs will also be high impedance when the RESET
pin is LOW.
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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Table 1-1: Pin Descriptions (Continued)
Pin Number
12
Name
IOPROC_EN
Timing
Type
Description
Non
Input
CONTROL SIGNAL INPUT
Signal Levels are LVCMOS / LVTTL compatible.
Synchronous
Used to enable or disable the I/O processing features.
When set HIGH, the following I/O processing features of the device
are enabled:
• SMPTE 352M Payload Identifier Packet Generation and
Insertion
• Illegal Code Remapping
• EDH Generation and Insertion
• Ancillary Data Checksum Insertion
• TRS Generation and Insertion
To enable a subset of these features, keep the IOPROC_EN pin HIGH
and disable the individual feature(s) in the IOPROC_DISABLE
register accessible via the host interface.
When this pin is set LOW, the device will enter low-latency mode.
NOTE: When the internal FIFO is configured for video mode or
ancillary data insertion mode, the IOPROC_EN pin must be set
HIGH.
13
JTAG/HOST
Non
Input
Synchronous
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to select JTAG Test Mode or Host Interface Mode.
When set HIGH, CS_TMS, SCLK_TCK, SDOUT_TDO, and SDIN_TDI are
configured for JTAG boundary scan testing.
When set LOW, CS_TMS, SCLK_TCK, SDOUT_TDO, and SDIN_TDI are
configured as GSPI pins for normal host interface operation.
14
RESET
Non
Input
Synchronous
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to reset the internal operating conditions to default setting or
to reset the JTAG test sequence.
Host Mode (JTAG/HOST = LOW):
When asserted LOW, all functional blocks will be set to default
conditions ,SDO and SDO are muted, and all input signals become
high impedance with the exception of the STAT pins which will be
driven LOW.
When set HIGH, normal operation of the device resumes 10usec
after the LOW-to-HIGH transition of the RESET signal.
JTAG Test Mode (JTAG/HOST = HIGH):
When asserted LOW, all functional blocks will be set to default and
the JTAG test sequence will be held in reset.
When set HIGH, normal operation of the JTAG test sequence
resumes.
NOTE: For power on reset requirements please see Device Power Up
on page 58.
15, 45
CORE_VDD
Non
Input
Power supply for digital logic blocks. Connect to +1.8V DC.
Synchronous
Power
NOTE: For power sequencing requirements please see Device Power
Up on page 58.
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DVB-ASI
Data Sheet
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Table 1-1: Pin Descriptions (Continued)
Pin Number
Name
Timing
Type
Description
16
CS_TMS
Synchronous
with
SCLK_TCK
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Chip Select / Test Mode Select
Host Mode (JTAG/HOST = LOW):
CS/TMS operates as the host interface chip select, CS, and is active
LOW.
JTAG Test Mode (JTAG/HOST = HIGH):
CS/TMS operates as the JTAG test mode select, TMS, and is active
HIGH.
NOTE: If this pin is unused it should be pulled up to VCC_IO.
17
SCLK_TCK
Non
Input
Synchronous
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Serial Data Clock / Test Clock. All JTAG / Host Interface address and
data is shifted into / out of the device synchronously with this clock.
Host Mode (JTAG/HOST = LOW):
SCLK_TCK operates as the host interface serial data clock, SCLK.
JTAG Test Mode (JTAG/HOST = HIGH):
SCLK_TCK operates as the JTAG test clock, TCK.
NOTE: If this pin is unused it should be pulled up to VCC_IO.
18, 48
19
CORE_GND
SDOUT_TDO
Non
Input
Synchronous
Power
Synchronous
with
SCLK_TCK
Output
Ground connection for digital logic blocks. Connect to GND.
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Serial Data Output / Test Data Output
Host Mode (JTAG/HOST = LOW):
SDOUT_TDO operates as the host interface serial output, SDOUT,
used to read status and configuration information from the
internal registers of the device.
JTAG Test Mode (JTAG/HOST = HIGH):
SDOUT_TDO operates as the JTAG test data output, TDO.
20
SDIN_TDI
Synchronous
with
SCLK_TCK
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Serial Data Input / Test Data Input
Host Mode (JTAG/HOST = LOW):
SDIN_TDI operates as the host interface serial input, SDIN, used to
write address and configuration information to the internal
registers of the device.
JTAG Test Mode (JTAG/HOST = HIGH):
SDIN_TDI operates as the JTAG test data input, TDI.
NOTE: If this pin is unused it should be pulled up to VCC_IO.
21, 29, 43
IO_VDD
Non
Synchronous
Input
Power
Power supply for digital I/O.
For a 3.3V tolerant I/O, connect pins to either +1.8V DC or +3.3V DC.
For a 5V tolerant I/O, connect pins to a +3.3V DC.
NOTE: For power sequencing requirements please see Device Power
Up on page 58.
22, 27
RSV
–
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
–
Reserved. Do Not Connect.
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Table 1-1: Pin Descriptions (Continued)
Pin Number
23, 25, 26
Name
Timing
Type
Description
STAT[2:0]
Synchronous
with PCLK or
WR_CLK
Input/
Output
MULTI FUNCTION I/O PORT
Signal levels are LVCMOS / LVTTL compatible.
Programmable multi-function I/O. By programming the bits in the
IO_CONFIG register, each pin can act as an output for one of the
following signals:
• H
• V
• F
• FIFO_FULL
• FIFO_EMPTY
Each pin may also act as an input for an external H, V, or F signal if
the DETECT_TRS pin is set LOW by the application layer
These pins are set to certain default values depending on the
configuration of the device and the internal FIFO mode selected.
See Programmable Multi-function I/O on page 51 for details.
24, 28, 42
IO_GND
30
WR_CLK
Non
Synchronous
Input
Power
Ground connection for digital I/O. Connect to GND.
Input
FIFO WRITE CLOCK
Signal levels are LVCMOS / LVTTL compatible.
The application layer clocks the parallel data into the device on the
rising edge of WR_CLK when the internal FIFO is configured for
video mode or DVB-ASI mode.
NOTE: If this pin is unused it should be pulled up to GND.
31
WR_RESET
Synchronous
with
WR_CLK
Input
FIFO WRITE RESET
Signal levels are LVCMOS / LVTTL compatible.
Valid input only when the device is in SMPTE mode (SMPTE_BYPASS
= HIGH, DVB-ASI = LOW) and the internal FIFO is configured for
video mode (Video Mode on page 26).
A HIGH to LOW transition will reset the FIFO write pointer to
address zero of the memory.
NOTE: If this pin is unused it should be pulled up to GND.
32 - 41
DIN[9:0]
Synchronous
with
Input
WR_CLK
PARALLEL VIDEO DATA BUS
Signal levels are LVCMOS / LVTTL compatible.
When the internal FIFO is enabled and configured for either video
mode or DVB-ASI mode, parallel data will be clocked into the
device on the rising edge of WR_CLK.
or PCLK
When the internal FIFO is in bypass mode, parallel data will be
clocked into the device on the rising edge of PCLK.
DIN9 is the MSB and DIN0 is the LSB.
44
PCLK
Input
PIXEL CLOCK INPUT
Signal levels are LVCMOS / LVTTL compatible.
27MHz parallel clock input.
46
RSV
–
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
–
Reserved. Do Not Connect.
9 of 63
Table 1-1: Pin Descriptions (Continued)
Pin Number
47
Name
Timing
Type
Description
DVB_ASI
Non
Synchronous
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
When set HIGH by the application layer, the device will be
configured for the transmission of DVB-ASI data.The setting of the
SMPTE_BYPASS pin will be ignored.
When set LOW by the application layer, the device will not support
the encoding of DVB-ASI data.
49
SMPTE_BYPASS
Non
Synchronous
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
When set HIGH in conjunction with DVB_ASI = LOW, the device will
be configured to operate in SMPTE mode. All I/O processing
features may be enabled in this mode.
When set LOW, the device will not support the scrambling,
encoding or packet insertion of received SMPTE data. No I/O
processing features will be available and the device will enter a
low-latency mode.
50
BLANK
Synchronous
Input
with PCLK
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Functional only when chip is in SMPTE mode.
When set LOW by the application layer, the luma and chroma input
data is set to the appropriate blanking levels (TRS words will be
unaltered at all times)
When set HIGH by the application layer, the input data will pass
into the device unaltered.
51
DETECT_TRS
Non
Synchronous
Input
CONTOL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to select external H,V, and F timing mode or TRS extraction
timing mode.
When set LOW by the application layer, the device will extract all
internal timing from the supplied H, V, and F timing signals.
When set HIGH by the application layer, the device will extract all
internal timing from the TRS signals embedded in the supplied
video stream. The H, V, and F signals will become outputs that can
be accessed via the STAT[2:0] pins.
Both 8-bit and 10-bit TRS code words will be identified by the
device.
52
FIFO_EN
Non
Synchronous
Input
CONTOL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to enable / disable the internal FIFO.
When FIFO_EN is HIGH, the internal FIFO will be enabled. Data will
be clocked into the device on the rising edge of the WR_CLK input
pin if the FIFO is in video mode or DVB-ASI mode.
When FIFO_EN is LOW, the internal FIFO is bypassed and parallel
data is clocked into the device on the rising edge of the PCLK input.
53
VCO_VDD
Analog
Input
Power
Power supply connection for Voltage-Controlled-Oscillator. Connect
to +1.8V DC.
54
LB_CONT
Analog
Input
CONTROL SIGNAL INPUT
Control voltage to fine-tune the loop bandwidth of the PLL.
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DVB-ASI
Data Sheet
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May 2010
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Table 1-1: Pin Descriptions (Continued)
Pin Number
Name
Timing
Type
Description
55
VCO_GND
Analog
Input
Power
Ground connection for Voltage-Controlled-Oscillator. Connect to
GND.
56
LF+
Analog
Input
Loop filter component connection. Connect to LF- through a
capacitor. See Typical Application Circuit on page 59.
Center Pad
–
Power
Connect to GND following recommendations in Recommended PCB
Footprint on page 61.
–
2. Electrical Characteristics
2.1 Absolute Maximum Ratings
Parameter
Value/Units
Supply Voltage Core
-0.3V to +2.1V
Supply Voltage I/O
-0.3V to +3.47V
Input Voltage Range (any input)
-2.0V to +5.25V
Ambient Operating Temperature
-20°C < TA < 85°C
Storage Temperature
-40°C < TSTG < 125°C
ESD protection on all pins (see Note 1)
500 V
NOTES:
1. HBM, per JESDA - 114B
2.2 DC Electrical Characteristics
Table 2-1: DC Electrical Characteristics
VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Notes
Operating Temperature
Range
TA
–
0
25
70
°C
1
Core power supply voltage
CORE_VDD
–
1.71
1.8
1.89
V
–
Digital I/O Buffer Power
Supply Voltage
IO_VDD
1.8V Operation
1.71
1.8
1.89
V
–
IO_VDD
3.3V Operation
3.13
3.3
3.47
V
–
System
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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Table 2-1: DC Electrical Characteristics (Continued)
VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Notes
PLL Power Supply Voltage
PLL_VDD
–
1.71
1.8
1.89
V
–
VCO Power Supply
Voltage
VCO_VDD
–
1.71
1.8
1.89
V
–
Serial Cable Driver Power
Supply Voltage
CD_VDD
–
1.71
1.8
1.89
V
–
Typical System Power
PD
CORE_VDD = 1.80V
IO_VDD = 1.80V
–
200
–
mW
–
Max. System Power
PD
CORE_VDD = 1.89V
IO_VDD = 3.47V
–
–
300
mW
–
Input Voltage, Logic LOW
VIL
1.8V or 3.3V
Operation
–
–
0.35 x
IO_VDD
V
–
Input Voltage, Logic HIGH
VIH
1.8V or 3.3V
Operation
0.65 x
IO_VDD
–
–
V
–
Output Voltage, Logic
LOW
VOL
IOL = 8mA @ 3.3V,
4mA @ 1.8V
–
–
0.4
V
–
Output Voltage, Logic
HIGH
VOH
IOL = -8mA @ 3.3V,
-4mA @ 1.8V
IO_VDD 0.4
–
–
V
–
Output Common Mode
Voltage Range
VCMOUT
1.8V Pull-Up
Reference Voltage
–
CD_VDD VODIFF
–
V
–
Serial Driver Output
Voltage Swing
VSDO
1.8V Pull-up
Reference Voltage,
Single Ended 75Ω
load
0
–
850
mVp-p
2
Output Voltage Variation
From Nominal
–
Over cable driver
voltage supply
range.
-8.5
–
+8.5
%
–
-5
–
+5
%
–
Digital I/O
Serial Digital Outputs
RSET = 281Ω
(800mVp-p single
ended output)
–
Output voltage
variation from
nominal (at 1.8V).
RSET = 281Ω
(800mVp-p single
ended output)
NOTES
1. All DC and AC electrical parameters within specification.
2. Set by the value of the RSET resistor.
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
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May 2010
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2.3 AC Electrical Characteristics
Table 2-2: AC Electrical Characteristics
VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Notes
SDO_EN = HIGH to
LOW
–
20
–
ns
–
System
Output High Impedance Response
Time
tRHIGHZ
Digital I/O
Input Data Setup Time
tSU
50% PCLK vs. VIL/VIH
data
3
–
–
ns
1
Input Data Hold Time
tIH
50% PCLK vs. VIL/VIH
data
1
–
–
ns
1
Output Data Hold Time
tOH
With 15pF load
3
–
–
ns
2
Output Delay Time
tOD
With 15pF load
–
–
11
ns
2
–
–
270
–
Mb/s
–
–
270Mb/s, VSDO =
800mV, 75Ω load
including rise/fall
mismatch, PCLK
input from GS9090A
–
360
555
psp-p
3
–
PCLK input from the
Agilent E4422B
Signal Generator
–
225
–
psp-p
3,4
Serial Output Rise Time
(20% ~ 80%)
SDOTR
Return loss
compensation
recommended
circuit - SMPTE 259M
signal
400
500
1000
ps
–
Serial Output Fall Time
(20% ~ 80%)
SDOTF
Return loss
compensation
recommended
circuit - SMPTE 259M
signal
400
500
1000
ps
–
Serial Digital Output
Serial Output Data Rate
Serial Output Jitter
BRSDO
Mismatch in Rise/Fall Time
–
VODIFF = 1600mV,
100Ω differential
load
–
–
30
ps
–
Serial Output Overshoot
–
VODIFF = 1600mV,
100Ω differential
load
–
0
8
%
–
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
13 of 63
Table 2-2: AC Electrical Characteristics (Continued)
VDD = 1.8V, TA = 0°C to 70°C, unless otherwise specified.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Notes
15
–
–
dB
5, 6
Output Return Loss
ORL
@ 270Mb/s Using
Gennum Evaluation
board. Measured at
the BNC with
matching network.
Output Capacitance
COUT
Including pin and
bonding parasitics
–
–
5
pF
–
fGSPI
–
–
–
54.0
MHz
–
DCGSPI
–
40
–
60
%
–
GSPI Setup Time
tGS
–
1.5
–
–
ns
–
GSPI Hold Time
tGH
–
–
–
1.5
ns
–
GSPI
GSPI Input Clock Frequency
GSPI Clock Duty Cycle
NOTES
1. Timing includes the following inputs: DIN[9:0], H, V, F, WR_CLK, WR_RESET, BLANK. When the FIFO is enabled, the following signals are
measured with respect to WR_CLK: WR_RESET, DIN[9:0], INSSYNCIN, KIN.
2. Refers to when H, V, and F are output pins
3.
4.
5.
6.
Measured using pseudorandom bit sequence (223-1) over full input voltage range.
PCLK = 27MHz driven from the Agilent E4422B Signal Generator and serial output jitter measured using the Tektronix CSA8000 Oscilloscope.
5MHz to 270MHz.
See ‘Output Return Loss Measurement” on page 49.
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
14 of 63
2.4 Solder Reflow Profiles
The device is manufactured with Matte-Sn terminations and is compatible with both
standard eutectic and Pb-free solder reflow profiles. MSL qualification was performed
using the maximum Pb-free reflow profile shown in Figure 2-1. The recommended
standard eutectic reflow profile is shown in Figure 2-2.
Temperature
60-150 sec.
20-40 sec.
260°C
250°C
3°C/sec max
217°C
6°C/sec max
200°C
150°C
25°C
Time
60-180 sec. max
8 min. max
Figure 2-1: Maximum Pb-free Solder Reflow Profile (Preferred)
60-150 sec.
Temperature
10-20 sec.
230°C
220°C
3°C/sec max
183°C
6°C/sec max
150°C
100°C
25°C
Time
120 sec. max
6 min. max
Figure 2-2: Standard Eutectic Solder Reflow Profile
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
15 of 63
ADDRESS
28h
27h
26h
25h
24h
23h
22h
21h
20h
1Fh
1Eh
1Dh
1Ch
1Bh
1Ah
19h
18h
17h
16h
15h
14h
13h
12h
11h
10h
0Fh
0Eh
0Dh
0Ch
0Bh
0Ah
09h
08h
07h
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
VFO4-b7
VFO2-b7
15
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
VFO4-b6
VFO2-b6
14
Not Used
Not Used
Not Used
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
ANC_LINE_B[10:0]
ANC_LINE_A[10:0]
FIFO_FULL_OFFSET
FF_PIXEL_END_F1[12:0]
FF_PIXEL_START_F1[12:0]
FF_PIXEL_END_F0[12:0]
FF_PIXEL_START_F0[12:0]
AP_PIXEL_END_F1[12:0]
AP_PIXEL_START_F1[12:0]
AP_PIXEL_END_F0[12:0]
AP_PIXEL_START_F0[12:0]
FF_LINE_END_F1[10:0]
FF_LINE_START_F1[10:0]
FF_LINE_END_F0[10:0]
FF_LINE_START_F0[10:0]
AP_LINE_END_F1[10:0]
AP_LINE_START_F1[10:0]
AP_LINE_END_F0[10:0]
AP_LINE_START_F0[10:0]
RASTER_STRUCTURE4[10:0]
RASTER_STRUCTURE3[12:0]
RASTER_STRUCTURE2[12:0]
RASTER_STRUCTURE1[10:0]
VIDEO_FORMAT_B
VIDEO_FORMAT_A
REGISTER NAME
ANC_WORDS[10:0]
352M_LINE_2[10:0]
352M_LINE_1[10:0]
2.5 Host Interface Maps
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
VFO4-b5
VFO2-b5
13
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
b12
b12
b12
b12
b12
b12
b12
b12
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
b12
b12
Not Used
VFO4-b4
VFO2-b4
12
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
b11
b11
b11
b11
b11
b11
b11
b11
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
b11
b11
Not Used
VFO4-b3
VFO2-b3
11
Not Used
Not Used
Not Used
b10
b10
Not Used
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
VFO4-b2
VFO2-b2
10
b10
b10
b10
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
VFO4-b1
VFO2-b1
9
b9
b9
b9
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
VFO4-b0
VFO2-b0
8
b8
b8
b8
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
VFO3-b7
VFO1-b7
7
b7
b7
b7
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
VFO3-b6
VFO1-b6
6
b6
b6
b6
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
VFO3-b5
VFO1-b5
5
b5
b5
b5
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
VFO3-b4
VFO1-b4
4
b4
b4
b4
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
VFO3-b3
VFO1-b3
3
b3
b3
b3
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
VFO3-b2
VFO1-b2
2
b2
b2
b2
0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
VFO3-b0
VFO1-b0
16 of 63
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
VFO3-b1
VFO1-b1
1
b1
b1
b1
04h
VIDEO_STANDARD
ANC-UES
Not Used
Not Used
14
Not Used
ANC-IDA
Not Used
13
ANC_
DATA_
RDBACK
ANC_SAV
ANC-IDH
12
ANC_
FIFO_
READY
ANC_
DATA_
SWITCH
Not Used
ANC-EDA
EDH_CRC_
UPDATE
11
ANC_
DATA_
REPLACE
Not Used
ANC-EDH
Not Used
Not Used
10
Not Used
FF-UES
Not Used
Not Used
9
b9
FF-IDA
STAT2_
CONFIG
b2
Not Used
8
b8
FF-IDH
STAT2_
CONFIG
b1
Not Used
7
b7
FF-EDA
STAT2_
CONFIG
b0
Not Used
6
b6
FF-EDH
STAT1_
CONFIG
b2
Not Used
5
b5
AP-UES
STAT1_
CONFIG
b1
STD_
LOCK
4
b4
AP-IDA
STAT1_
CONFIG
b0
Not Used
3
b3
Not Used
Not Used
Not Used
Not Used
Not Used
Not Used
ANC_PKT_
INS
H_
352M_
352M_
ILLEGAL_
FIFO_
FIFO_
CONFIG
CALC
INS
REMAP
MODE
MODE
b0
b1
NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. These registers may be written to in Ancillary Data Insertion mode (see Section 3.3.3)
Not Used
Not Used
Not Used
15
Not Used
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
IOPROC_DISABLE
03h
02h
01h
00h
05h
IO_CONFIG
EDH_FLAG
ADDRESS
06h
REGISTER NAME
FIFO_EMPTY_OFFSET
EDH_CRC_
INS
AP-IDH
STAT0_
CONFIG
b2
Not Used
2
b2
0
b0
TRS_IN
AP-EDH
STAT0_
CONFIG
b0
Not Used
17 of 63
ANC_
CSUM_
INS
AP-EDA
STAT0_
CONFIG
b1
Not Used
1
b1
ADDRESS
28h
27h
26h
25h
24h
23h
22h
21h
20h
1Fh
1Eh
1Dh
1Ch
1Bh
1Ah
19h
18h
17h
16h
15h
14h
13h
12h
11h
10h
0Fh
0Eh
0Dh
0Ch
0Bh
0Ah
09h
08h
07h
15
14
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
RASTER_STRUCTURE4[10:0]
RASTER_STRUCTURE3[12:0]
RASTER_STRUCTURE2[12:0]
RASTER_STRUCTURE1[10:0]
REGISTER NAME
13
b12
b12
12
b11
b11
11
2.5.1 Host Interface Map (Read only registers)
b10
b10
b10
b10
10
b9
b9
b9
b9
9
b8
b8
b8
b8
8
b7
b7
b7
b7
7
b6
b6
b6
b6
6
b5
b5
b5
b5
5
b4
b4
b4
b4
4
b3
b3
b3
b3
3
b2
b2
b2
b2
2
18 of 63
b1
b1
b1
b1
1
b0
b0
b0
b0
0
05h
04h
VIDEO_STANDARD
14
13
12
ANC_
FIFO_
READY
11
10
9
8
7
6
5
STD_
LOCK
4
NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. These registers may be written to in Ancillary Data Insertion mode (see Section 3.3.3)
15
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
03h
02h
01h
00h
ADDRESS
06h
REGISTER NAME
FIFO_EMPTY_OFFSET
3
2
19 of 63
1
0
ADDRESS
28h
27h
26h
25h
24h
23h
22h
21h
20h
1Fh
1Eh
1Dh
1Ch
1Bh
1Ah
19h
18h
17h
16h
15h
14h
13h
12h
11h
10h
0Fh
0Eh
0Dh
0Ch
0Bh
0Ah
09h
08h
07h
VFO4-b7
VFO2-b7
15
VFO4-b6
VFO2-b6
14
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
ANC_LINE_B[10:0]
ANC_LINE_A[10:0]
FIFO_FULL_OFFSET
VIDEO_FORMAT_B
VIDEO_FORMAT_A
FF_PIXEL_END_F1[12:0]
FF_PIXEL_START_F1[12:0]
FF_PIXEL_END_F0[12:0]
FF_PIXEL_START_F0[12:0]
AP_PIXEL_END_F1[12:0]
AP_PIXEL_START_F1[12:0]
AP_PIXEL_END_F0[12:0]
AP_PIXEL_START_F0[12:0]
FF_LINE_END_F1[10:0]
FF_LINE_START_F1[10:0]
FF_LINE_END_F0[10:0]
FF_LINE_START_F0[10:0]
AP_LINE_END_F1[10:0]
AP_LINE_START_F1[10:0]
AP_LINE_END_F0[10:0]
AP_LINE_START_F0[10:0]
REGISTER NAME
ANC_WORDS[10:0]
352M_LINE_2[10:0]
352M_LINE_1[10:0]
VFO4-b5
VFO2-b5
13
VFO4-b4
VFO2-b4
b12
b12
b12
b12
b12
b12
b12
b12
12
VFO4-b3
VFO2-b3
b11
b11
b11
b11
b11
b11
b11
b11
11
b10
b10
VFO4-b2
VFO2-b2
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
b10
10
b10
b10
b10
2.5.2 Host Interface Map (R/W configurable registers)
b9
b9
b9
VFO4-b1
VFO2-b1
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
b9
9
b9
b9
b9
b8
b8
b8
VFO4-b0
VFO2-b0
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
b8
8
b8
b8
b8
b7
b7
b7
VFO3-b7
VFO1-b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
b7
7
b7
b7
b7
b6
b6
b6
VFO3-b6
VFO1-b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
b6
6
b6
b6
b6
b5
b5
b5
VFO3-b5
VFO1-b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
b5
5
b5
b5
b5
b4
b4
b4
VFO3-b4
VFO1-b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
b4
4
b4
b4
b4
b3
b3
b3
VFO3-b3
VFO1-b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
b3
3
b3
b3
b3
b2
b2
b2
VFO3-b2
VFO1-b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
b2
2
b2
b2
b2
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
b0
0
b0
b0
b0
b0
b0
b0
VFO3-b0
VFO1-b0
20 of 63
b1
b1
b1
VFO3-b1
VFO1-b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
b1
1
b1
b1
b1
04h
VIDEO_STANDARD
ANC-UES
Not Used
Not Used
14
ANC-IDA
Not Used
13
ANC_
DATA_
RDBACK
ANC_SAV
ANC-IDH
ANC_
DATA_
SWITCH
Not Used
12
ANC-EDA
EDH_CRC_
UPDATE
11
ANC_
DATA_
REPLACE
Not Used
ANC-EDH
Not Used
Not Used
10
ANC_PKT_
INS
FF-UES
Not Used
Not Used
9
b9
FF-IDA
STAT2_
CONFIG
b2
8
b8
FF-IDH
STAT2_
CONFIG
b1
7
b7
FF-EDA
STAT2_
CONFIG
b0
6
b6
FF-EDH
STAT1_
CONFIG
b2
5
b5
AP-UES
STAT1_
CONFIG
b1
4
b4
AP-IDA
STAT1_
CONFIG
b0
3
b3
FIFO_
FIFO_
H_
352M_
352M_
ILLEGAL_
MODE
MODE
CONFIG
CALC
INS
REMAP
b1
b0
NOTE: Addresses 02Ch to 42Bh store the contents of the internal FIFO. These registers may be written to in Ancillary Data Insertion mode (see Section 3.3.3).
Not Used
Not Used
Not Used
15
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
DVB-ASI
Data Sheet
34715 - 4
May 2010
IOPROC_DISABLE
03h
02h
01h
00h
05h
IO_CONFIG
EDH_FLAG
ADDRESS
06h
REGISTER NAME
FIFO_EMPTY_OFFSET
EDH_CRC_
INS
AP-IDH
STAT0_
CONFIG
b2
2
b2
0
b0
TRS_IN
AP-EDH
STAT0_
CONFIG
b0
21 of 63
ANC_
CSUM_
INS
AP-EDA
STAT0_
CONFIG
b1
1
b1
3. Detailed Description
•
Functional Overview
•
Parallel Data Inputs
•
Internal FIFO Operation
•
SMPTE Mode
•
DVB-ASI Mode
•
Data-Through Mode
•
Additional Processing Functions
•
Parallel-to-Serial Conversion
•
Serial Digital Data PLL
•
Serial Digital Output
•
Programmable Multi-function I/O
•
Low Latency Mode
•
GSPI Host Interface
•
JTAG Operation
•
Device Power Up
3.1 Functional Overview
The GS9092A is a 270Mb/s serializer with an internal FIFO and a programmable
multi-function I/O port. The device has 3 different modes of operation which must be set
by the application layer through external device pins.
When SMPTE mode is enabled, the device will accept 10-bit multiplexed SMPTE
compliant data at 27MHz. The device's additional processing features are also enabled
in this mode.
In DVB-ASI mode, the GS9092A will accept an 8-bit parallel DVB-ASI compliant
transport stream. The serial output data stream will be 8b/10b encoded and padded with
K28.5 fill characters.
The GS9092A's third mode allows for the serializing of data not conforming to SMPTE or
DVB-ASI streams.
The serial digital outputs feature a high impedance mode and adjustable signal swing.
In the digital signal processing core, several data processing functions are implemented
including SMPTE 352M and EDH data packet generation and insertion, and automatic
video standards detection. These features are all enabled by default, but may be
individually disabled via internal registers accessible through the GSPI host interface.
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The provided programmable multi-function I/O pins may be configured to input and
output various status signals including H, V, and F timing, a FIFO_FULL, and a
FIFO_EMPTY pulse. The internal FIFO supports 4 modes of operation, which may be
used for data delay, MPEG packet insertion, or ancillary data insertion.
Finally, the GS9092A contains a JTAG interface for boundary scan test implementations.
3.2 Parallel Data Inputs
Data inputs enter the device on the rising edge of either PCLK or WR_CLK, depending
on the configuration of the internal FIFO.
When the internal FIFO is bypassed or in ancillary data insertion mode (see Ancillary
Data Insertion Mode on page 31), data enters the device on the rising edge of PCLK as
shown in Figure 3-1. When the internal FIFO is configured for video mode, data enters
the device on the rising edge of WR_CLK (see Video Mode on page 26).
The input data format is defined by the setting of the external SMPTE_BYPASS and
DVB_ASI pins (Table 3-1). Input data must be presented in 10-bit format.
tSU
PCLK
DIN[9:0]
CONTROL
SIGNAL INPUT
tIH
50%
VIH
VIH
VIL
VIL
VIH
VIH
VIL
VIL
Figure 3-1: PCLK to Input Data Timing
NOTE: For a SMPTE compliant serial output, the jitter on the input PCLK across the
frequency spectrum should not exceed 350ps.
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3.2.1 Parallel Input in SMPTE Mode
When the device is operating in SMPTE mode (see SMPTE Mode on page 35), SD data is
presented to the input bus in 10-bit multiplexed format. The input data format must be
word aligned, multiplexed luma and chroma data.
NOTE: When operating the device in an 8-bit SMPTE system, the 2 LSBs (DIN [1:0]) must
be set to 0.
Table 3-1: Input Data Format Selection
Pin Settings
Input Data Format
DIN[9:0]
SMPTE_BYPASS
DVB_ASI
10-bit Data
DATA
LOW
LOW
10-bit Multiplexed SD
Luma/Chroma
HIGH
LOW
10-bit DVB-ASI
DVB-ASI data
X
HIGH
3.2.2 Parallel Input in DVB-ASI Mode
When operating in DVB-ASI mode (see DVB-ASI Mode on page 36), the device will
accept 8-bit data words on DIN[7:0] such that DIN7 = HIN is the most significant bit of
the encoded transport stream data and DIN0 = AIN is the least significant bit.
In addition, DIN9 and DIN8 will be configured as the DVB-ASI control signals
INSSYNCIN and K_IN respectively. See Control Signal Inputs on page 36 for a
description of these DVB-ASI specific input signals.
3.2.3 Parallel Input in Data-Through Mode
When operating in Data-Through mode (see Data-Through Mode on page 37), the
GS9092A passes data presented to the parallel input bus to the serial output without
performing any encoding, scrambling, or word-alignment.
3.2.4 I/O Buffers
The parallel data bus, status signal outputs, and control signal input pins are all
connected to high-impedance buffers. These buffers use either +1.8V or +3.3V DC,
supplied at the IO_VDD and IO_GND pins. For a +3.3V tolerant I/O, the IO_VDD pins
can be connected to either +1.8V or +3.3V. For a +5V tolerant I/O, the IO_VDD pins must
be supplied with +3.3V.
While RESET is LOW, STAT output pins are muted and all other output pins become high
impedance.
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3.3 Internal FIFO Operation
The GS9092A contains an internal video line-based FIFO, which can be programmed by
the application layer to work in any of the following modes:
1. Video Mode
2. DVB-ASI Mode
3. Ancillary Data Insertion Mode
4. Bypass Mode
The FIFO can be configured to one of the four modes by setting the FIFO_MODE[1:0] bits
of the IOPROC_DISABLE register via the host interface (see Table 3-4 in Packet
Generation and Insertion on page 38). The setting of these bits is shown in Table 3-2. To
enable the FIFO, the application layer must also set the FIFO_EN pin HIGH. Additionally,
if the FIFO is configured for video mode or ancillary data insertion mode, the
IOPROC_EN pin must be set HIGH.
The FIFO is fully asynchronous, allowing simultaneous read and write access. It has a
depth of 2048 words, and can store up to 1 full line of SD video for both 525 and 625
standards.
NOTE: The F, V, and H signals will be ignored when the FIFO is configured for DVB-ASI
mode or bypass mode.
Table 3-2: FIFO Configuration Bit Settings
FIFO Mode
FIFO_MODE[1:0]
Register Setting
FIFO_EN
Pin Setting
IOPROC_EN
Pin Setting
Video Mode
00b
HIGH
HIGH
DVB-ASI Mode
01b
HIGH
X
Ancillary Data
Insertion Mode
10b
HIGH
HIGH
Bypass Mode
11b
X
X
NOTE: ‘X’ signifies ‘don’t care’. The pin is ignored and may be set HIGH or LOW.
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3.3.1 Video Mode
The internal FIFO is in video mode under the following conditions:
•
the FIFO_EN and IOPROC_EN pins are set HIGH,
•
the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register (Table 3-4) are
configured to 00b,
•
the DETECT_TRS pin is set LOW; and
•
TRS insertion, EDH correction/insertion, illegal code re-mapping, and SMPTE
packet insertion are all disabled (i.e. bits 0, 2, 3, and 4 of the IOPROC_DISABLE
register are set HIGH).
NOTE: The FIFO will still enter video mode if any of bits 0, 2, 3, or 4 of the
IOPROC_DISABLE register are LOW; however, the output video data will contain errors.
By default, the FIFO_MODE[1:0] bits are set to 00b by the device whenever the
SMPTE_BYPASS pin is set HIGH and the DVB_ASI and DETECT_TRS pins are set LOW.
In video mode, the H, V, and F pins become input signals that must be supplied by the
user.
Figure 3-2 shows the input and output signals of the FIFO when it is configured for video
mode.
Internal
Application Interface
10-bit Video Data
10-bit Video Data
FIFO
(Video Mode)
WR_RESET
WR_CLK
RD_RESET
(supplied H timing)
RD_CLK (PCLK)
Figure 3-2: FIFO in Video Mode
When operating in video mode, the GS9092A will read data sequentially from the FIFO,
starting with the first active pixel in location zero of the memory. In this mode, it is
possible to use the FIFO for clock phase interchange and data delay.
The device will ensure read-side synchronization is maintained, according to the
supplied PCLK and supplied H, V, and F timing information.
Full write-control of the FIFO is made available to the application interface such that
data is clocked into the FIFO on the rising edge of the externally provided WR_CLK. The
FIFO write pointer will be reset to position zero of the memory when there is a
HIGH-to-LOW transition at the WR_RESET pin.
The application layer must start writing the first active pixel of the line into location zero
of memory. Therefore, the user should use the WR_RESET pin to reset the FIFO write
pointer prior to writing to the device.
NOTE: The BLANK signal must not be asserted in video mode.
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3.3.2 DVB-ASI Mode
The internal FIFO is in DVB-ASI mode when the application layer sets the FIFO_EN pin
HIGH and the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are configured to
01b. By default, the FIFO_MODE[1:0] bits are set to 01b by the device whenever the
DVB_ASI pin is set HIGH (i.e. the device is in DVB-ASI mode); however, the application
layer may program the FIFO_MODE[1:0] bits as required.
Figure 3-3 shows the input and output signals of the FIFO when it is configured for
DVB-ASI Mode.
Application Interface
Internal
8-bit MPEG Data
8-bit MPEG Data
K_IN
K_IN
FIFO
(DVB-ASI Mode)
FIFO_FULL
FIFO_EMPTY
WR_CLK
RD_CLK (PCLK)
Figure 3-3: FIFO in DVB-ASI Mode
When operating in DVB-ASI mode, the GS9092A's FIFO can be used for clock rate
interchange operation. 8-bit MPEG data as well as a K_IN control signal must be written
to the FIFO by the application layer. The MPEG data and control signal can be
simultaneously clocked into the FIFO at any rate using the rising edge of the WR_CLK
pin.
The 8-bit MPEG data stream may consist of only MPEG packets, or both MPEG packets
and special characters (such as the K28.5 stuffing characters). The application layer must
set K_IN HIGH whenever a special character is present in the data stream, otherwise it
should be LOW. The GS9092A uses the K_IN signal to determine whether or not a given
byte in the FIFO is an MPEG packet that needs 8b/10b encoded.
The INSSYNCIN pin should be grounded while operating the FIFO in DVB-ASI mode.
The GS9092A internally reads the data out of the FIFO at the PCLK rate and adds the
necessary number of stuffing characters based on the FIFO status flags.
3.3.2.1 FIFO Status Flags
The FIFO contains internal read and write pointers used to designate which spot in the
FIFO the MPEG data will be read from or written to. These internal pointers control the
status flags FIFO_FULL and FIFO_EMPTY, which are available for output on the
multi-function I/O pins if so programmed (see Programmable Multi-function I/O on
page 51).
In the case where the write pointer is originally ahead of the read pointer, the
FIFO_EMPTY flag will be set HIGH when both pointers arrive at the same address (see
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box A of Figure 3-6). When the FIFO_EMPTY flag goes HIGH, the device will insert K28.5
stuffing data bytes.
To allow larger K28.5 packet sizes to be inserted, a write pointer offset can be
programmed into the FIFO_EMPTY_OFFSET[9:0] register of the host interface. If an
offset value is programmed in this register, the FIFO_EMPTY flag is set HIGH when the
read and write pointers of the FIFO are at the same address, and will remain HIGH until
the write pointer reaches the programmed offset. While the FIFO_EMPTY flag is HIGH,
the device will continue to insert stuffing characters. Once the pointer offset has been
exceeded, the FIFO_EMPTY flag will go LOW and the device will begin reading MPEG
data out of the FIFO (see box B of Figure 3-6).
In the case where the read pointer is originally ahead of the write pointer, the
FIFO_FULL flag will be set HIGH when both pointers arrive at the same address (see box
C of Figure 3-6). The application layer can use this flag to determine when to write to the
device.
A read and write pointer offset may also be programmed in the FIFO_FULL_OFFSET[9:0]
register of the host interface. If an offset value is programmed in this register, the
FIFO_FULL flag will be set HIGH when the read and write pointers of the FIFO are at the
same address, and will remain set HIGH until the read pointer reaches the programmed
offset. Once the pointer offset has been exceeded, the FIFO_FULL flag will be cleared
(see box D of Figure 3-6).
NOTE: When the FIFO is configured for DVB-ASI mode, the INSSYNCIN pin is unused,
as synchronization characters are inserted based on the FIFO status flags. The pin
should be grounded. When the internal FIFO is bypassed in DVB-ASI mode, the
INSSYNCIN input assumes normal operation as described in Control Signal Inputs on
page 36.
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Gating the WR_CLK Using the FIFO_FULL Flag
Using the asynchronous FIFO_FULL flag to gate the WR_CLK requires external clock
gating circuitry to generate a clean burst clock (see Figure 3-4). An example circuit for
this application is shown in Figure 3-5.
CORRECT
INCORRECT
Figure 3-4: Burst Clock
FIFO_FULL
D
WR_CLK
SET
CLR
Q
Q
D
SET
CLR
Q
Q
D
SET
CLR
Q
Q
GATED
WR_CLK
WR_CLK
FIFO_FULL
GATED
WR_CLK
Figure 3-5: Example Circuit to Gate WR_CLK Using the FIFO_FULL Flag
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A
B
Read
Pointer
Read
Pointer
Exmple 1: FIFO Empty Flag Operation when
FIFO_EMPTY[9:0] = 0h
0
Address
Address
Exmple 2: FIFO Empty Flag Operation when
FIFO_EMPTY[9:0] = 3FFh
1023
2047
2047
0
FIFO
FIFO
Write
Pointer
Write
Pointer
FIFO_EMPTY
FIFO_EMPTY
C
D
Read
Pointer
Exmple 4: FIFO Full Flag Operation when FIFO_FULL[9:0] = 3FFh
Read
Pointer
Exmple 3: FIFO Full Flag Operation when
FIFO_FULL[9:0] = 0h
Address
Address
5
0
1023
2047
2047
FIFO
Write
Pointer
Write
Pointer
FIFO_FULL
FIFO_FULL
Figure 3-6: FIFO Status Flag Operation in DVB-ASI Mode
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3.3.3 Ancillary Data Insertion Mode
The internal FIFO is in ancillary data insertion mode when the application layer sets the
FIFO_EN and IOPROC_EN pins HIGH, and the FIFO_MODE[1:0] bits in the
IOPROC_DISABLE register are configured to 10b.
In this mode, the FIFO is divided into two separate blocks of 1024 words each. To insert
ancillary data into the video stream, the internal PLL must be locked to the input PCLK.
Once the FIFO enters ancillary data insertion mode, there is a 2200 PCLK cycle (82us)
initialization period before the application layer may write ancillary data into the FIFO.
The device will set the ANC_FIFO_READY bit HIGH (bit 12 of address 06h) once this
initialization period has passed.
The following steps, which may be completed in any order, are required before ancillary
data is inserted into the data stream:
1. Starting at the first address of the FIFO (address 02Ch), the application layer must
program the contents of the ancillary data packets to be inserted into the FIFO via
the host interface. A maximum of 1024 8-bit words are allowed. The entire packet,
including the ancillary data flag (ADF), data identification (DID), secondary data
identification (SDID) if applicable, data count (DC), and checksum word must be
written into memory. The user may write an arbitrary value (FFh for example) for
the checksum word, which will act as a place holder. The actual checksum will be
calculated and inserted by the device prior to insertion into the data stream. The
GS9092A will also generate bit 8 and 9 for all words in the FIFO (as described in
SMPTE 291M) prior to insertion. Note that no ancillary data can be written to the
FIFO until the device has set the ANC_FIFO_READY bit HIGH.
2. The number of words to be inserted (i.e. the number of words written into the FIFO),
must be programmed in the ANC_WORDS[10:0] register by the application layer. If
the total number of words to be inserted exceeds the available space, the ancillary
data will be inserted up to the point where the available space is filled.
3. The line(s) in which the packets are to be inserted must be programmed into the
ANC_LINE_A[10:0] and/or ANC_LINE_B[10:0] registers. Up to two lines per frame
may have ancillary data packets inserted in them. If only one line number register
is programmed, ancillary data packets will be inserted in one line per frame only.
The GS9092A will insert ancillary data into the designated line(s) during every
frame.
4. The application layer must set the ANC_SAV bit of the IO_CONFIG register (address
05h) either HIGH or LOW. By default, the ANC_SAV bit will be LOW and the
ancillary data will be inserted into the horizontal ancillary data space at the first
available location after the EAV. If the ANC_SAV bit is set HIGH, the ancillary data is
written instead immediately after the SAV on the line programmed. If an active
video line is programmed into the ANC_LINE_A[10:0] or ANC_LINE_B[10:0]
register, the active video data will be overwritten when ANC_SAV is set HIGH.
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Once the above steps are completed, the application layer may set the ANC_PKT_INS bit
of the IOPROC_DISABLE register HIGH (see Table 3-4 in Packet Generation and
Insertion on page 38) to enable insertion of the prepared ancillary packets into the video
data stream. Ancillary data packets will be inserted in the following frame after the
ANC_PKT_INS bit has been set HIGH.
NOTE: When inserting ancillary data into the blanking region, the total number of words
cannot exceed the size of the blanking region, and the data count value in the packet
must be correct.
3.3.3.1 Ancillary Data Insertion
Once the ANC_PKT_INS bit is set HIGH, the device will start reading the user
programmed ancillary packets out of the FIFO and insert them into the video stream.
Subsequent ancillary packets programmed by the application layer will continue to be
placed into the first half of the FIFO until the ANC_DATA_SWITCH bit is toggled (see
block A of Figure 3-7).
By default, the ANC_DATA_SWITCH bit of the IO_CONFIG register is set LOW. When
ANC_DATA_SWITCH is toggled from LOW to HIGH, any new ancillary data the
application layer programs will be placed in the second half of the FIFO. The device will
continue to insert ancillary data from the first half of the FIFO into the video stream (see
block B of Figure 3-7).
Once the ancillary data in the first half of the FIFO has been inserted into the video
stream, ANC_DATA_SWITCH may be toggled again. This will clear the first half of the
FIFO and begin insertion of ancillary data from the second half of the FIFO. The
application layer may continue programming ancillary data into the second half of the
FIFO (see block C of Figure 3-7).
If the ANC_DATA_SWITCH bit is toggled again, any new data the application layer
programs will be placed into the first half of the FIFO. The device will continue to insert
ancillary data from the second half of the FIFO into the video stream (see block D of
Figure 3-7).
Toggling ANC_DATA_SWITCH again will clear the second half of the FIFO and restore
the read and write pointers to the situation shown in block A. The switching process
(shown in blocks A to D in Figure 3-7) will continue with each toggle of the
ANC_DATA_SWITCH bit.
NOTE: At least 1100 PCLK cycles (41us) must pass between toggles of the
ANC_DATA_SWITCH bit.
The GS9092A will insert the ancillary data programmed in the FIFO into each video
frame at the designated line(s) programmed in ANC_LINE_A[10:0] and/or
ANC_LINE_B[10:0].
Clearing the ANC_PKT_INS bit will not automatically disable ancillary data insertion. To
disable ancillary data insertion, switch the FIFO into bypass mode by setting
FIFO_MODE[1:0] = 11b. 2200 PCLK cycles after the device re-enters ancillary data
insertion mode, data extraction will commence immediately if ANC_PKT_INS is HIGH.
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When there are existing ancillary data packets present in the video data stream, the
device will append the ancillary data to the existing data only when the ANC_SAV bit is
set LOW. In this case, all existing ancillary data must be contiguous after the EAV. If data
is not contiguous, the ancillary data to be inserted will be written at the first available
space where the video is set to blanking levels. When ANC_SAV is set HIGH, any data
present after the SAV will be overwritten.
To overwrite existing ancillary data, the ANC_DATA_REPLACE bit of the
FIFO_EMPTY_OFFSET register must be set HIGH. When this bit is set HIGH, existing
ancillary data will be replaced with the data to be inserted and the remainder of the line
will be set to blanking levels. The device will replace ancillary data on the line of
insertion only. Existing ancillary data on other lines will not be replaced with blanking
levels.
NOTE: If the ANC_SAV and ANC_DATA_REPLACE bits are both set HIGH, and if
ancillary data is inserted on an active picture line, the remainder of the active line will
be set to blanking levels.
Ancillary Data Readback Mode
By default, when the FIFO is in ancillary data insertion mode, the application layer can
only write ancillary data into the FIFO. However, if ANC_DATA_RDBACK is set HIGH
(bit 13 of address 06h), the GS9092A will discontinue inserting ancillary data into the
data stream and the host interface may read the ancillary data programmed into that
half of the FIFO.
3.3.3.2 Clearing the ANC Data FIFO
When switching to ANC FIFO mode, the user must follow one of the 2 methods below to
ensure that the FIFO is fully cleared.
Clearing ANC FIFO Method 1:
1. Enable ANC FIFO mode (write 10b into the FIFO_MODE register).
2. Wait for ANC_FIFO_READY bit to be asserted.
3. Toggle (LOW-to-HIGH-to-LOW) ANC_DATA_SWITCH bit (bit 12 of IO_CONFIG
register) twice.
Clearing ANC FIFO Method 2:
1. Power on device.
2. Set FIFO_EN pin HIGH.
3. Enable ANC FIFO mode (write 10b into the FIFO_MODE register).
4. Set FIFO_EN pin LOW.
5. Set FIFO_EN pin HIGH.
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A
0
Application layer
read pointer
B
0
ANC_DATA
ANC_DATA
Internal write
pointer
0
ANC_DATA
Application layer
read pointer
ANC_DATA
ANC_DATA
Internal write
pointer
0
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
1023
1023
1023
1023
ANC_DATA_SWITCH = HIGH
ANC_DATA_SWITCH = LOW
ANC_DATA_SWITCH bit is toggled HIGH. New ancillary data is written
to second half of FIFO starting at adress zero. Application layer continues to
read from the first half of the FIFO.
D
C
0
Application layer 0
read pointer
ANC_DATA
Internal write
pointer
0
0
%%
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
Application layer
read pointer
ANC_DATA
Internal write
pointer
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
ANC_DATA
%%
1023
1023
1023
ANC_DATA_SWITCH = LOW
ANC_DATA_SWITCH toggled LOW. First half of FIFO cleared and ancillary
data read from second half of FIFO. Device continues to write ancillary data
to second half of FIFO.
1023
ANC_DATA_SWITCH = HIGH
ANC_DATA_SWITCH bit is toggled HIGH. New ancillary data is written to first half of
FIFO starting at address zero. Application layer continues to read from second half
of FIFO. Toggling ANC_DATA_SWITCH back LOW will clear the second half of the
FIFO and go back the situation depicted in box A.
NOTE: At least 1100 PCLK cycles must pass between toggles of the ANC_DATA_SWITCH bit.
Figure 3-7: Ancillary Data Insertion
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3.3.4 Bypass Mode
The internal FIFO is in bypass mode when the application layer sets the FIFO_EN or
IOPROC_EN pin LOW, or the FIFO_MODE[1:0] bits in the IOPROC_DISABLE register are
configured to 11b. By default, the FIFO_MODE[1:0] bits are set to 11b by the device
whenever both the SMPTE_BYPASS and DVB_ASI pins are LOW; however, the
application layer may program the FIFO_MODE[1:0] bits as required.
In bypass mode, the FIFO is not inserted into the video path and data is presented to the
input of the device synchronously with the PCLK input. The FIFO will be disabled and
placed in static mode to save power.
3.4 SMPTE Mode
The GS9092A enters SMPTE mode when the SMPTE_BYPASS pin is set HIGH and the
DVB_ASI pin is set LOW.
In this mode, the parallel data will be scrambled according to SMPTE 259M and
NRZ-to-NRZI encoded prior to serialization.
3.4.1 I/O Status Signals
When DETECT_TRS is LOW, the device will be locked to the externally supplied H, V,
and F signals. When DETECT_TRS is HIGH, the device will be locked to the embedded
TRS signals in the parallel input data. The H, V, and F pins become output status signals,
and their timing will be based on embedded TRS words.
3.4.2 HVF Timing Signal Inputs
As discussed above, the GS9092A's internal flywheel may be locked to externally
provided H, V, and F signals when DETECT_TRS is set LOW by the application layer.
The H signal timing may be configured via the H_CONFIG bit of the internal
IOPROC_DISABLE register as either active line-based blanking or TRS-based blanking
(see Table 3-4 in Packet Generation and Insertion on page 38).
The default setting of this bit (after RESET has been asserted) is LOW.
Active line-based blanking is enabled when the H_CONFIG bit is set LOW. In this mode,
the H input should be HIGH for the entire horizontal blanking period, including the EAV
and SAV TRS words. This is the default H timing assumed by the device.
When H_CONFIG is set HIGH, TRS-based blanking is enabled. In this case, the H input
should be set HIGH for the entire horizontal blanking period as indicated by the H bit in
the associated TRS words.
The timing of these signals is shown in Figure 3-8.
When the DETECT_TRS pin is set HIGH, the output timing on the H pin can be selected
as either active line-based or TRS-based.
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PCLK
Y/Cr/Cb DATA INPUT
3FF
000
000
XYZ
(eav)
3FF
000
000
XYZ
(sav)
H
V
F
H SIGNAL TIMING:
H_CONFIG = LOW (Default)
H_CONFIG = HIGH
Figure 3-8: H, V, and F Input Timing
3.5 DVB-ASI Mode
The GS9092A enters DVB-ASI mode when the application layer sets the DVB_ASI pin
HIGH.
In this mode, all SMPTE processing functions are disabled, and the 8-bit transport stream
data will be 8b/10b encoded prior to serialization.
3.5.1 Control Signal Inputs
In DVB-ASI mode, the DIN9 and DIN8 will be configured as DVB-ASI control signals
INSSYNCIN and K_IN respectively.
When INSSYNCIN is set HIGH, the device will insert K28.5 sync characters into the data
stream. This function is used to assist system implementations where the GS9092A's
internal FIFO is disabled (FIFO_EN = LOW), and the device is preceded by an external
FIFO. Parallel data may be clocked into the external FIFO at some rate less than 27MHz.
The INSSYNCIN input may then be connected to the FIFO empty signal, thus providing
a means of padding up the data transmission rate to 27MHz.
NOTE 1: If the internal FIFO is enabled (FIFO_EN = HIGH), the INSSYNCIN pin should be
grounded (see DVB-ASI Mode on page 27).
NOTE 2: In DVB-ASI mode, 8b/10b encoding will take place after K28.5 sync character
insertion.
K_IN should be set HIGH whenever the parallel data input is to be interpreted as any
special character (including the K28.5 sync character), defined by the DVB-ASI
standard. This pin should be set LOW when the input is to be interpreted as data.
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3.6 Data-Through Mode
The GS9092A may be configured by the application layer to operate as a simple
parallel-to-serial converter. In this mode, the device presents data to the output buffer
without performing any scrambling, encoding, or word-alignment.
Data-through mode is enabled only when both the SMPTE_BYPASS and DVB_ASI pins
are set low by the application layer.
3.7 Additional Processing Functions
The GS9092A contains an additional data processing block which is available in SMPTE
mode only (see SMPTE Mode on page 35).
3.7.1 Input Data Blank
The GS9092A can crop the video input data, where the cropped region is set to blanking
levels. All input video and ancillary data will be set to blanking levels by the device,
however, the TRS will be protected at all times.
When the BLANK pin is set LOW, the input video will be set to blanking levels until the
BLANK pin is re-asserted HIGH. When set HIGH, the input video will not be blanked.
This allows portions of the input video to be dynamically cropped, based on the timing
of the BLANK input.
The BLANK input should be synchronized to the PCLK unless the internal FIFO is
enabled and configured for video mode. If the FIFO is in video mode, the BLANK input
should not be used.
3.7.2 Automatic Video Standard Detection
The GS9092A can detect the input video standard by using the timing parameters
extracted from the received TRS ID words or supplied H, V, and F timing signals.
Total samples per line, active samples per line, total lines per field/frame and active lines
per field/frame are calculated and presented to the host interface via the four
RASTER_STRUCTURE registers (Table 3-3).
In addition to the RASTER_STRUCTURE registers, bit 4 of the VIDEO_STANDARD
register contains a status bit, STD_LOCK, which will be set HIGH whenever the device
has achieved full synchronization to the detected video standard.
The STD_LOCK bit, as well as the RASTER_STRUCTURE registers will default to zero
under any of the following conditions:
•
RESET is LOW
•
SMPTE_BYPASS is LOW
NOTE: When the video data is removed, but the PCLK remains, the VIDEO_STANDARD
register will contain the last detected standard. To clear the registers, the PCLK must be
removed as well or the device must be reset.
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Table 3-3: Host Interface Description for Raster Structure Registers
Register Name
Bit
Name
Description
RASTER_STRUCTURE1
Address: 11h
15-11
–
10-0
RASTER_STRUCTURE2
Address: 12h
RASTER_STRUCTURE3
Address: 13h
RASTER_STRUCTURE4
Address: 14h
R/W
Default
N otU sed
–
–
RASTER_STRUCTURE1[10:0]
Total Lines Per Frame
R
0
15-13
–
N otU sed
–
–
12-0
RASTER_STRUCTURE2[12:0]
Total Words Per Line
R
0
15-13
–
N otU sed
–
–
12-0
RASTER_STRUCTURE3[12:0]
Words Per Active Line
R
0
15-11
–
N otU sed
–
–
10-0
RASTER_STRUCTURE4[10:0]
Active Lines Per Field
R
0
3.7.3 Packet Generation and Insertion
In addition to input data blanking and automatic video standards detection, the
GS9092A may also calculate, assemble, and insert into the data stream various types of
ancillary data packets and TRS ID words.
These features are only available when the device is set to operate in SMPTE mode and
the IOPROC_EN pin is set HIGH. Individual insertion features may be enabled or
disabled via the IOPROC_DISABLE register (Table 3-4).
All of the IOPROC_DISABLE register bits default to '0' after device reset, enabling all of
the processing features. To disable any individual error correction feature, the host
interface must set the corresponding bit HIGH in this register.
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Table 3-4: Host Interface Description for Internal Processing Disable Register
Register Name
IOPROC_DISABLE
Address: 00h
Bit
Name
Description
15-10
–
Not Used
9
ANC_PKT_INS
Ancillary Packet Insertion Enable. When the FIFO is
configured for ancillary data insertion, set HIGH to
begin inserting ancillary data.
R/W
Default
–
–
R/W
0
NOTE: Setting ANC_PKT_INS LOW will not
automatically disable ancillary data insertion (see
Ancillary Data Insertion on page 32).
8-7
FIFO_MODE[1:0]
FIFO Mode: These bits control which mode the
internal FIFO is operating in (see Table 3-2)
R/W
0
6
H_CONFIG
Horizontal sync timing output configuration. Set LOW
for active line blanking timing. Set HIGH for H
blanking based on the H bit setting of the TRS word.
See Figure 3-8 in HVF Timing Signal Inputs on page 35.
R/W
0
5
352M_CALC
SMPTE 352M Calculation. When set LOW, the
GS9092A will automatically generate packet
information prior to insertion. When set HIGH, the
user must program the VIDEO_FORMAT registers with
the SMPTE 352M packet to be inserted.
R/W
–
4
352M_INS
SMPTE 352M Packet Insertion. The IOPROC_EN pin
and SMPTE_BYPASS pin must also be set HIGH. Set
HIGH to disable.
R/W
–
NOTE: The user should disable Packet Insertion when
serializing SDTI signals.
3
ILLEGAL_REMAP
Illegal code re-mapping. Detection and correction of
illegal code words within the active picture area. The
IOPROC_EN pin and SMPTE_BYPASS pin must also be
set HIGH. Set HIGH to disable.
R/W
0
2
EDH_CRC_INS
Error Detection & Handling (EDH) Cyclical Redundancy
Check (CRC) error insertion. The GS9092A will
generate and insert EDH packets. The IOPROC_EN pin
and SMPTE_BYPASS pin must also be set HIGH. Set
HIGH to disable.
R/W
0
1
ANC_CSUM_INS
Ancillary Data Checksum insertion. The IOPROC_EN
pin and SMPTE_BYPASS pin must also be set HIGH. Set
HIGH to disable.
R/W
0
0
TRS_INS
Timing Reference Signal Insertion. Occurs only when
IOPROC_EN pin and SMPTE_BYPASS pin is HIGH. Set
HIGH to disable.
R/W
0
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3.7.3.1 SMPTE 352M Payload Identifier Generation and Insertion
If the 352M_INS bit of the IOPROC_DISABLE register is set LOW, the GS9092A can
generate and insert SMPTE 352M payload identifier ancillary data packets into the data
stream automatically or based on information programmed into the host interface.
When the 352M_CALC bit of the IOPROC_DISABLE register is set HIGH, the user must
program the SMPTE 352M packet to be inserted into the VIDEO_FORMAT registers
(Table 3-5). In addition, the line number(s) in which the packet is to be inserted must be
programmed in the 352M_LINE_1 and 352M_LINE_2 registers (Table 3-6). If both line
number registers are set to zero, no packets will be inserted.
NOTE: The user must program the SMPTE 352M packet into the VIDEO_FORMAT
registers prior to programming the line number(s) in which the packet is to be inserted.
NOTE: It is the responsibility of the user to ensure that there is sufficient space in the
horizontal blanking interval for the insertion of the SMPTE 352M packets. These packets
will be inserted immediately after the EAV word on the line designated in the standard
or by the user
If there are other ancillary data packets present, the SMPTE 352M packet will be inserted
in the first available space in the HANC. Ancillary data must be contiguous from the
EAV. When there is insufficient space available, the 352M packets will not be inserted.
When the 352M_CALC bit of the IOPROC_DISABLE register is set LOW, the GS9092A
will automatically generate and insert 352M packets into the video stream. The device
will also write the generated packet into the VIDEO_FORMAT registers.
NOTE: When the IOPROC_EN pin is set HIGH and all registers contain their default
values, the VIDEO_FORMAT registers are set to 0h and do not contain the SMPTE 352M
packet.
The SMPTE 352M packet will be inserted into the data stream according to the line
number and sample position defined in the standard.
The 4:3/16:9 bit of the SMPTE 352M packet will be set LOW by default to denote 4:3. For
video payloads where 16:9 images are transmitted over 270Mb/s links, the user must
program the SMPTE 352M packet accordingly.
The video payload identifier packet will be version 1 and comply with the structure
defined in SMPTE 352M-2002.
NOTE: The user should turn off SMPTE 352M packet insertion when serializing SDTI
signals.
Table 3-5: Host Interface Description for SMPTE 352M Payload Identifier Registers
Register Name
Bit
Name
Description
R/W
Default
VIDEO_FORMAT_B
Address: 10h
15-8
SMPTE 352M
Byte 4
SMPTE 352M Byte 4 information must be
programmed in this register when 352M_INS is LOW
and 352M_CALC is HIGH.
R/W
0
7-0
SMPTE 352M
Byte 3
SMPTE 352M Byte 3 information must be
programmed in this register when 352M_INS is LOW
and 352M_CALC is HIGH.
R/W
0
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Table 3-5: Host Interface Description for SMPTE 352M Payload Identifier Registers
Register Name
Bit
Name
Description
R/W
Default
VIDEO_FORMAT_A
Address: 0Fh
15-8
SMPTE 352M
Byte 2
SMPTE 352M Byte 2 information must be
programmed in this register when 352M_INS is LOW
and 352M_CALC is HIGH.
R/W
0
7-0
SMPTE 352M
Byte 1
SMPTE 352M Byte 1 information must be
programmed in this register when 352M_INS is LOW
and 352M_CALC is HIGH.
R/W
0
Table 3-6: Host Interface Description for SMPTE 352M Packet Line Number Insertion Registers
Register Name
Bit
Name
Description
352M_LINE_1
Address: 26h
15-11
–
N otU sed
10-0
352M_LINE_1 [10:0]
Line number where SMPTE352M packet is inserted
in field 1. If the 352M_CALC bit is HIGH, and both
352M_LINE1 and 352M_LINE2 are set to zero, then
no packets will be inserted.
15-11
–
N otU sed
10-0
352M_LINE_2 [10:0]
Line number where SMPTE352M packet is inserted
in field 2. If the 352M_CALC bit is HIGH, and both
352M_LINE1 and 352M_LINE2 are set to zero, then
no packets will be inserted.
352M_LINE_2
Address: 27h
R/W
Default
–
–
R/W
0
–
–
R/W
0
3.7.3.2 Illegal Code Remapping
If the ILLEGAL_REMAP bit of the IOPROC_DISABLE register is set LOW, the GS9092A
will remap all codes within the active picture between the values of 3FCh and 3FFh to
3FBh. All codes within the active picture area between the values of 000h and 003h will
be remapped to 004h.
In addition, 8-bit TRS and ancillary data preambles will be remapped to 10-bit values if
this feature is enabled.
NOTE: The EDH block always remaps EDH packet headers regardless of the
ILLEGAL_REMAP setting.
3.7.3.3 EDH Generation and Insertion
If the EDH_CRC_INS bit of the IOPROC_DISABLE register is set LOW, the GS9092A may
be configured to generate and insert complete EDH packets into the data stream, or
update the CRC bits of existing EDH packets.
Generation and Insertion of New EDH Packets
When EDH_CRC_UPDATE is set LOW (bit 11 of address 04h), the GS9092A will generate
all of the required EDH packet data including all ancillary data preambles (DID, DBN,
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DC), reserved code words and checksum. Calculation of both full field (FF) and active
picture (AP) CRC's will be carried out by the device.
By default, after a system reset, the GS9092A will calculate the EDH ranges based on the
setting of the DETECT_TRS pin. If DETECT_TRS is LOW, the device will calculate the
EDH ranges based on the received H, V, and F timing. If DETECT_TRS is HIGH, the device
will calculate the ranges based on the internal TRS timing.
Alternatively, the user can program the EDH calculation ranges in the host interface.
The registers available to the host interface for programming EDH calculation ranges
include active picture and full field line start and end positions for both fields. Table 3-7
shows the relevant registers, which default to '0' after device reset.
If any or all of these register values are zero, then the EDH CRC calculation ranges will
be determined from the flywheel generated H signal. The first AP pixel will always be
the first pixel after the SAV TRS code words. The first FF pixel will always be the first
pixel after the EAV TRS code words. The last AP pixel and last FF pixel will always be the
last pixel before the start of the EAV code words. Figure 3-9 shows the positions of the
FF and AP pixel positions relative to TRS words and H timing.
H Timing (H_CONFIG = LOW)
H Timing (H_CONFIG = HIGH)
3FF
XYZ
000 000
SAV
FIRST
AP
PIXEL
LAST
FF &
AP
PIXEL
XYZ
3FF 000 000
EAV
FIRST
FF
PIXEL
Figure 3-9: First and Last FF and AP Pixel Positions
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EDH error flags (EDH, EDA, IDH, IDA, and UES) for ancillary data, full field, and active
picture will also be inserted. These flags must be programmed into the EDH_FLAG
registers of the device by the application layer (Table 3-8).
NOTE 1: It is the responsibility of the user to ensure that the EDH flag registers are
updated once per field.
The prepared EDH packet will be inserted at the appropriate line of the video stream
according to RP 165. The start pixel position of the inserted packet will be based on the
SAV position of that line such that the last byte of the EDH packet (the checksum) will be
placed in the sample immediately preceding the start of the SAV TRS word.
NOTE 2: It is also the responsibility of the user to ensure that there is sufficient space in
the horizontal blanking interval for the EDH packet to be inserted.
CRC Update of Existing Packets
When the EDH_CRC_UPDATE bit is set HIGH, the GS9092A will not generate any new
EDH packets, but will instead update the CRC bytes of the existing EDH packets within
the input video data stream. Incoming EDH flags are preserved and can be read from the
EDH_FLAG register, which becomes read-only (Table 3-8).
When EDH packets are detected, the EDH_FLAG register is updated on each field. These
registers will be cleared LOW if no EDH packet is detected during blanking at the end of
the vertical blanking period (falling edge of V).
The validity or ‘V’ bits of the incoming EDH packet will also be set to ‘1’ to denote that the
CRC calculations are valid. The EDH packet checksum word is also re-calculated and
re-inserted.
When incoming EDH packets are updated, the location of the packets within the video
stream remains unchanged. EDH packets that are to be updated can be present
anywhere within the horizontal blanking region of the vertical blanking period.
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Table 3-7: Host Interface Description for EDH Calculation Range Registers
Register Name
Bit
Name
Description
AP_LINE_START_F0
Address: 15h
15-11
–
Not Used
10-0
AP_LINE_START_F0[10:0]
Field 0 Active Picture start line data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
AP_LINE_END_F0[10:0]
Field 0 Active Picture end line data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
AP_LINE_START_F1[10:0]
Field 1 Active Picture start line data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
AP_LINE_END_F1[10:0]
Field 1 Active Picture end line data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
FF_LINE_START_F0[10:0]
Field 0 Full Field start line data used
to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
FF_LINE_END_F0[10:0]
Field 0 Full Field end line data used
to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
FF_LINE_START_F1[10:0]
Field 1 Full Field start line data used
to set EDH calculation range
outside of SMPTE RP 165 values.
15-11
–
N otU sed
10-0
FF_LINE_END_F1[10:0]
Field 1 Full Field end line data used
to set EDH calculation range
outside of SMPTE RP 165 values.
15-13
–
N otU sed
12-0
AP_PIXEL_START_F0[12:0]
Field 0 Active Picture start pixel
data used to set EDH calculation
range outside of SMPTE RP 165
values.
15-13
–
N otU sed
12-0
AP_PIXEL_END_F0[12:0]
Field 0 Active Picture end pixel data
used to set EDH calculation range
outside of SMPTE RP 165 values.
AP_LINE_END_F0
Address: 16h
AP_LINE_START_F1
Address: 17h
AP_LINE_END_F1
Address: 18h
FF_LINE_START_F0
Address: 19h
FF_LINE_END_F0
Address: 1Ah
FF_LINE_START_F1
Address: 1Bh
FF_LINE_END_F1
Address: 1Ch
AP_PIXEL_START_F0
Address: 1Dh
AP_PIXEL_END_F0
Address: 1Eh
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
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R/W
Default
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
44 of 63
Table 3-7: Host Interface Description for EDH Calculation Range Registers (Continued)
Register Name
Bit
Name
Description
AP_PIXEL_START_F1
Address: 1Fh
15-13
–
N otU sed
12-0
AP_PIXEL_START_F1[12:0]
Field 1 Active Picture start pixel
data used to set EDH calculation
range outside of SMPTE RP 165
values.
15-13
–
N otU sed
12-0
AP_PIXEL_END_F1[12:0]
Field 1 Active Picture end pixel data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-13
–
N otU sed
12-0
FF_PIXEL_START_F0[12:0]
Field 0 Full Field start pixel data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-13
–
N otU sed
12-0
FF_PIXEL_END_F0[12:0]
Field 0 Full Field end pixel data used
to set EDH calculation range
outside of SMPTE RP 165 values.
15-13
–
N otU sed
12-0
FF_PIXEL_START_F1[12:0]
Field 1 Full Field start pixel data
used to set EDH calculation range
outside of SMPTE RP 165 values.
15-13
–
N otU sed
12-0
FF_PIXEL_END_F1[12:0]
Field 1 Full Field end pixel data used
to set EDH calculation range
outside of SMPTE RP 165 values.
AP_PIXEL_END_F1
Address: 20h
FF_PIXEL_START_F0
Address: 21h
FF_PIXEL_END_F0
Address: 22h
FF_PIXEL_START_F1
Address: 23h
FF_PIXEL_END_F1
Address: 24h
GS9092A GenLINX® III 270Mb/s Serializer for SDI and
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R/W
Default
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
–
–
R/W
0
45 of 63
Table 3-8: Host Interface Description for EDH Flag Register
Register Name
Bit
Name
EDH_FLAG
15
–
14
ANC-UES
Description
Not Used
R/W
Default
–
–
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
Address: 02h
Ancillary Unknown Error Status flag will be generated and
inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH
and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
13
ANC-IDA
Ancillary Internal device error Detected Already flag will be
generated and inserted when IOPROC_EN and
SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
12
ANC-IDH
Ancillary Internal device error Detected Here flag will be
generated and inserted when IOPROC_EN and
SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
11
ANC-EDA
Ancillary Error Detected Already flag will be generated and
inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH
and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
10
ANC-EDH
Ancillary Error Detected Here flag will be generated and
inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH
and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
9
FF-UES
Full Field Unknown Error Status flag will be generated and
inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH
and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
8
FF-IDA
Full Field Internal device error Detected Already flag will be
generated and inserted when IOPROC_EN and
SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
7
FF-IDH
Full Field Internal device error Detected Here flag will be
generated and inserted when IOPROC_EN and
SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
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Table 3-8: Host Interface Description for EDH Flag Register (Continued)
Register Name
Bit
6
Name
FF-EDA
Description
R/W
Default
Full Field Error Detected Already flag will be generated and
inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH
and EDH_CRC_INS bit is LOW.
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
5
FF-EDH
Full Field Error Detected Here flag will be generated and
inserted when IOPROC_EN and SMPTE_BYPASS pins are HIGH
and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
4
AP-UES
Active Picture Unknown Error Status flag will be generated
and inserted when IOPROC_EN and SMPTE_BYPASS pins are
HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
3
AP-IDA
Active Picture Internal device error Detected Already flag will
be generated and inserted when IOPROC_EN and
SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
2
AP-IDH
Active Picture Internal device error Detected Here flag will
be generated and inserted when IOPROC_EN and
SMPTE_BYPASS pins are HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
1
AP-EDA
Active Picture Error Detected Already flag will be generated
and inserted when IOPROC_EN and SMPTE_BYPASS pins are
HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
0
AP-EDH
Active Picture Error Detected Here flag will be generated
and inserted when IOPROC_EN and SMPTE_BYPASS pins are
HIGH and EDH_CRC_INS bit is LOW.
NOTE: When EDH_CRC_UPDATE is set HIGH, this bit is
read-only, and will be updated by the device.
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3.7.3.4 Ancillary Data Checksum Generation and Insertion
The GS9092A will calculate checksums for all detected ancillary data packets presented
to the device. These calculated checksum values are inserted into the data stream prior
to serialization.
Ancillary data checksum generation and insertion will only take place if the
ANC_CSUM_INS bit of the IOPROC_DISABLE register is set LOW.
3.7.3.5 TRS Generation and Insertion
The GS9092A can generate and insert 10-bit TRS code words into the data stream as
required. This feature is enabled by setting the TRS_INS bit of the IOPROC_DISABLE
register LOW.
TRS word generation will be performed in accordance with the timing parameters,
which will be locked either to the received TRS ID words or the supplied H, V, and F
timing signals.
3.8 Parallel-to-Serial Conversion
The parallel data output of the internal data processing blocks is fed to the
parallel-to-serial converter. The function of this block is to generate a serial data stream
from the 10-bit parallel data words.
3.9 Serial Digital Data PLL
The input PCLK pin is internally connected to an integrated phase-locked loop. This PLL
is also responsible for generating all internal clock signals required by the device. An
internal VCO provides the transmission clock rate for the GS9092A.
The PLL and VCO each require a +1.8V DC power supply, which is supplied via the
VCO_VDD / VCO_GND and PLL_VDD / PLL_GND pins. A loop filter capacitor should
also be connected between the LF+ and LF- pins. See Typical Application Circuit on
page 59.
NOTE: For a SMPTE compliant serial output, the jitter on the input PCLK across the
frequency spectrum should not exceed 350ps.
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3.10 Serial Digital Output
The GS9092A contains an integrated current mode differential serial digital output
buffer/cable driver, capable of driving 800mV into two single ended 75Ω loads. Output
pins SDO and SDO provide a single differential serial digital output. Alternatively, two
75Ω connections can be driven using single ended drive.
To enable the output, SDO_EN must be set HIGH by the application layer. Setting the
SDO_EN signal LOW will cause the SDO and SDO output pins to become high
impedance, resulting in reduced device power consumption.
With suitable external return loss matching circuitry, the GS9092A's serial digital
outputs will provide a minimum output return loss of 15dB.
The output buffer / cable driver uses a separate power supply of +1.8V DC supplied via
the CD_VDD and CD_GND pins.
3.10.1 Output Swing
Nominally, the voltage swing of the serial digital output is 800mVp-p single-ended into
a 75Ω load. This is set externally by connecting the RSET pin to CD_VDD through a
resistor. The output swing may be adjusted by altering the value of the RSET resistor.
SMPTE-compliant cable driver operation can be achieved at +1.8V operation by
connecting external pull-up resistors from the differential output to the +1.8V source.
3.10.2 Serial Digital Output Mute Control
The GS9092A will automatically mute the serial digital output when RESET is LOW. In
this case, the SDO and SDO signals are set to the last logic state.
3.10.3 Output Return Loss Measurement
Under normal operating conditions the cable connected to the BNC connector will
provide a 75Ω load. Under this loaded condition, the outputs of the device swing
between VCC-0.4V and VCC-1.2V. When a 75Ω load is not connected to the BNC
connector, the outputs of the device will swing between VCC and VCC - 1.6V. The
difference in output swing is shown in Figure 3-10.
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1.8
1.6
OUTPUT VOLTAGE (V)
1.4
1.2
1.0
LOADED
UNLOADED
0.8
0.6
0.4
0.2
0.0
NON-LINEAR REGION
OPERATING REGION
Figure 3-10: Output Swing in the non-linear region of the GS9092A’s output
When performing a return loss measurement the output is in a static and unloaded
condition. The typical cable driver power supply is 1.8V, which places the unloaded
swing very close to the power rails of the GS9092A's cable driver. As the output voltage
approaches the GND rail, the output driver enters a non-linear region. In this region, the
GS9092A's output transistor's characteristics are not optimal (see Figure 3-10).
Figure 3-11 shows the return loss performance of the cable driver as a function of the
output voltage level. When the output driver is latched low, the observed ORL in the
non-linear region will appear degraded. When the output driver is latched high, the
observed ORL will be representative of the operating return loss.
OUTPUT VOLTAGE (V)
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
0
ORL (dB)
-10
-20
-30
-40
NON-LINEAR REGION
OPERATING REGION
Figure 3-11: ORL vs. Output Voltage
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3.11 Programmable Multi-function I/O
The GS9092A has a multi-function I/O port that uses 3 pins, STAT0 through STAT2. Each
pin can be programmed via the host interface to output one of the following signals: H,
V, F, FIFO_FULL, and FIFO_EMPTY (see Table 3-9). The pins may also act as inputs for
external H, V and F signals if DETECT_TRS is set LOW. Alternatively, STAT[2:0] may be
set to a high-impedance state.
Table 3-9: I/O Signals Available on Multi-function I/O Ports
I/O Status Signal
Reference
H
Section 3.4.1
V
Section 3.4.1
F
Section 3.4.1
FIFO_FULL
Section 3.3.2.1
FIFO_EMPTY
Section 3.3.2.1
The registers that determine the signals present on the STAT [2:0] pins are labelled
STAT0_CONFIG[2:0], STAT1_CONFIG[2:0], and STAT2_CONFIG[2:0] respectively.
Table 3-10 shows the setting of the IO_CONFIG registers for each of the available output
signals.
Table 3-10: IO_CONFIG Settings
Function
I/O
DETECT_TRS
Setting
IO_CONFIG
Setting
H
Input
LOW
000b
Output
HIGH
000b
Input
LOW
001b
Output
HIGH
001b
Input
LOW
010b
Output
HIGH
010b
High Z
Output
X
011b
High Z
Output
X
100b
High Z
Output
X
101b
FIFO_FULL
Output
X
110b
FIFO_EMPTY
Output
X
111b
V
F
The default setting for each IO_CONFIG register depends on the configuration of the
device and the internal FIFO mode selected. This is shown in Table 3-11.
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NOTE: The FIFO_FULL and FIFO_EMPTY flags can only be displayed on the STAT[2:0]
pins when the device is in DVB-ASI mode. If the FIFO_FULL or FIFO_EMPTY value (100b
and 101b respectively) is programmed into the IO_CONFIG registers when the device is
in SMPTE mode, the value will be ignored and the I/O pin will be set to a high impedance
state.
Table 3-11: STAT [2:0] Output Default Configuration
Device Configuration
IO_CONFIG Register
I/O
Function
Default IO_CONFIG
Setting
SMPTE Functionality
SMPTE_BYPASS = HIGH
DVB_ASI = LOW
FIFO: Video Mode or Ancillary
Data Insertion Mode
STAT0_CONFIG
I/O
H
000b
STAT1_CONFIG
I/O
V
001b
STAT2_CONFIG
I/O
F
010b
STAT0_CONFIG
Output
FIFO_FULL
110b
STAT1_CONFIG
Output
FIFO_EMPTY
111b
STAT2_CONFIG
Output
High Z
000b
STAT0_CONFIG
Output
High Z
000b
STAT1_CONFIG
Output
High Z
000b
STAT2_CONFIG
Output
High Z
000b
DVB-ASI
DVB_ASI = HIGH
FIFO: DVB-ASI Mode
Data-Through
SMPTE_BYPASS = LOW
DVB_ASI = LOW
3.12 Low Latency Mode
When the IOPROC_EN pin is set LOW, the GS9092A will enter a low-latency mode such
that the serial digital data will be output with the minimum PCLK latency possible. The
FIFO and all processing blocks except the SMPTE scrambling block will be bypassed
when SMPTE_BYPASS is HIGH.
Low-latency mode will also be selected when SMPTE_BYPASS is set LOW, regardless of
the setting of the IOPROC_EN signal (see Table 3-12).
In DVB-ASI mode (DVB-ASI Mode on page 36), the device will have a higher latency
then low-latency mode, although this latency will be less than SMPTE mode (SMPTE
Mode on page 35).
Table 3-12: Pin Settings in Low-latency Mode
IOPROC_EN Setting
SMPTE_BYPASS Setting
Latency
(PCLK Cycles)
LOW
LOW
9
HIGH
LOW
10
LOW
HIGH
8
HIGH
HIGH
21
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3.13 GSPI Host Interface
The GSPI, or Gennum Serial Peripheral Interface, is a 4-wire interface provided to allow
the host to enable additional features of the GS9092A and/or to provide additional status
information through configuration registers in the device.
The GSPI comprises a serial data input signal SDIN, serial data output signal SDOUT, an
active low chip select CS, and a burst clock SCLK.
Because these pins are shared with the JTAG interface port, an additional control signal
pin JTAG/HOST is provided. When JTAG/HOST is LOW, the GSPI interface is enabled.
When operating in GSPI mode, the SCLK, SDIN, and CS signals are provided by the
application interface. The SDOUT pin is a non-clocked loop-through of SDIN and may
be connected to the SDIN of another device, allowing multiple devices to be connected
to the GSPI chain. The interface is illustrated in Figure 3-12.
Application Host
GS9092A
SCLK
CS1
SDOUT
SCLK
CS
SDIN
SDOUT
GS9092A
SCLK
CS2
CS
SDIN
SDIN
SDOUT
Figure 3-12: GSPI Application Interface Connection
All read or write access to the GS9092A is initiated and terminated by the host processor.
Each access always begins with a 16-bit command word on SDIN indicating the address
of the register of interest. This is followed by a 16-bit data word on SDIN in write mode,
or a 16-bit data word on SDOUT in read mode.
NOTE: All unused GSPI input pins (CS, SDIN, SCLK) should be pulled up to VCC_IO.
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3.13.1 Command Word Description
The command word consists of a 16-bit word transmitted MSB first and contains a
read/write bit, an Auto-Increment bit and a 12-bit address. Figure 3-13 shows the
command word format and bit configurations.
Command words are clocked into the GS9092A on the rising edge of the serial clock
SCLK, which operates in a burst fashion.
When the Auto-Increment bit is set LOW, each command word must be followed by
only one data word to ensure proper operation. If the Auto-Increment bit is set HIGH,
the following data word will be written into the address specified in the command word,
and subsequent data words will be written into incremental addresses from the
previous data word. This facilitates multiple address writes without sending a command
word for each data word.
Auto-Increment may be used for both read and write access.
3.13.2 Data Read and Write Timing
Read and write mode timing for the GSPI interface is shown in Figure 3-15 and
Figure 3-16 respectively. The timing parameters are defined in Table 3-13.
When several devices are connected to the GSPI chain, only one CS must be asserted
during a read sequence.
During the write sequence, all command and following data words input at the SDIN pin
are output at the SDOUT pin as is. Where several devices are connected to the GSPI
chain, data can be written simultaneously to all the devices that have CS set LOW.
Table 3-13: GSPI Timing Parameters
Parameter
Definition
Specification
t0
The minimum duration of time chip select, CS, must be
LOW before the first SCLK rising edge.
1.5 ns
t1
The minimum SCLK period.
18.5 ns
t2
Duty cycle tolerated by SCLK.
t3
Minimum input setup time.
1.5 ns
t4
Write Cycle: the minimum duration of time between
the last SCLK command (or data word if the
Auto-Increment bit is HIGH) and the first SCLK of the
data word.
37.1 ns
t5
Read Cycle: the minimum duration of time between
the last SCLK command (or data word if the
Auto-Increment bit is HIGH) and the first SCLK of the
data word.
148.4 ns
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Table 3-13: GSPI Timing Parameters (Continued)
Parameter
Definition
Specification
t5
Read Cycle - ANC_DATA_RDBACK bit HIGH when FIFO
is in ancillary insertion mode (see Ancillary Data
Insertion on page 32): the minimum duration of time
between the last SCLK command (or data word if the
Auto-Increment bit is HIGH) and the first SCLK of the
data word.
t6
Minimum output hold time.
1.5 ns
t7
The minimum duration of time between the last SCLK
of the GSPI transaction and when CS can be set HIGH.
37.1 ns
t8
Minimum input hold time.
1.5 ns
MSB
R/W RSV
222.6 ns
LSB
RSV
AutoInc
A11
A10
A8
A9
RSV = Reserved. Must be set to zero.
A7
A5
A6
A4
A3
A2
A1
D2
D1
A0
R/W: Read command when R/W = 1
Write command when R/W = 0
Figure 3-13: Command Word Format
MSB
D15
LSB
D14
D13
D12
D11
D10
D9
D8
D7
D5
D6
D4
D3
D0
Figure 3-14: Data Word Format
t5
SCLK
t6
CS
SDIN
R/W
RSV
RSV
AutoInc
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
SDOUT
R/W
RSV
RSV
AutoInc
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Figure 3-15: GSPI Read Mode Timing
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t0
t7
t4
t1
SCLK
t3
CS
SDIN
SDOUT
R/W
R/W
RSV
RSV
t2
RSV
AutoInc
RSV
AutoInc
A11
A11
A10
A10
A9
A9
t8
A8
A8
A7
A7
A6
A6
A5
A4
A3
A2
A1
A0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
A5
A4
A3
A2
A1
A0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Figure 3-16: GSPI Write Mode Timing
3.13.3 Configuration and Status Registers
Table 3-14 summarizes the GS9092A's internal status and configuration registers.
All of these registers are available to the host via the GSPI and are all individually
addressable.
Where status registers contain less than the full 16 bits of information, two or more
registers may be combined at a single logical address.
Table 3-14: GS9092A Internal Registers
Address
Register Name
Reference
00h
IOPROC_DISABLE
Section 3.7.3
02h
EDH_FLAG
Section 3.7.3.3
04h
VIDEO_STANDARD
Section 3.7.2
05h
IO_CONFIG
Section 3.11
06h
FIFO_EMPTY_OFFSET
Section 3.3.2.1
07h
FIFO_FULL_OFFSET
Section 3.3.2.1
08h - 09h
ANC_LINE
Section 3.3.3
0Fh - 10h
VIDEO_FORMAT
Section 3.7.3.1
11h - 14h
RASTER_STRUCTURE
Section 3.7.2
15h - 24h
EDH_CALC_RANGES
Section 3.7.3.3
26h - 27h
352M_LINE
Section 3.7.3.1
ANC_WORDS
Section 3.3.3
INTERNAL FIFO
Section 3.3.3
28h
02Ch - 42Bh
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3.14 JTAG Operation
When the JTAG/HOST pin is set HIGH by the application layer, the host interface port
(as described in GSPI Host Interface on page 53) will be configured for JTAG test
operation. In this mode, pins 16, 17, 19, and 20 become TMS, TCK, TDO, and TDI
respectively. In addition, the RESET pin will operate as the test reset pin, as well as
resetting the internal registers.
Boundary scan testing using the JTAG interface will be possible in this mode.
There are two methods in which JTAG can be used on the GS9092A:
1. As a stand-alone JTAG interface to be used at in-circuit ATE (Automatic Test
Equipment) during PCB assembly; or
2. Under control of the host for applications such as system power self tests.
When the JTAG tests are applied by ATE, care must be taken to disable any other devices
driving the digital I/O pins. If the tests are to be applied only at ATE, this can be
accomplished with tri-state buffers used in conjunction with the JTAG/HOST input
signal. This is shown in Figure 3-17.
Alternatively, if the test capabilities are to be used in the system, the host may still
control the JTAG/HOST input signal, but some means for tri-stating the host must exist
in order to use the interface at ATE. This is represented in Figure 3-18.
Application HOST
GS9092A
CS_TMS
SCLK_TCK
SDIN_TDI
SDOUT_TDO
JTAG_EN
In-circuit ATE probe
Figure 3-17: In-Circuit JTAG
Application HOST
GS9092A
CS_TMS
SCLK_TCK
SDIN_TDI
SDOUT_TDO
JTAG_EN
Tri-State
In-circuit ATE probe
Figure 3-18: System JTAG
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3.15 Device Power Up
The GS9092A has a recommended power supply sequence. To ensure correct power up,
power the CORE_VDD pins before the IO_VDD pins. In order to initialize all internal
operating conditions to their default state the application layer must hold the RESET pin
LOW for a minimum of treset = 1ms.
Device pins can be driven prior to power up without causing damage.
+1.71V
+1.8V
CORE_VDD
treset
treset
Reset
Reset
RESET
Figure 3-19: Reset pulse
4. References & Relevant Standards
SMPTE 125M
Component video signal 4:2:2 – bit parallel interface
SMPTE 267M
Bit parallel digital interface – component video signal 4:2:2 16 x 9 aspect
ratio
SMPTE 291M
Ancillary Data Packet and Space Formatting
SMPTE 352M
Video Payload Identification for Digital Television Interfaces
SMPTE RP165
Error Detection Checkwords and Status Flags for Use in Bit-Serial Digital
Interfaces for Television
SMPTE RP168
Definition of Vertical Interval Switching Point for Synchronous Video
Switching
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5. Application Information
5.1 Typical Application Circuit
+1.8V
S D O_E N
10n
S D O_E N
IOP ROC_EN
IOP ROC_EN
J TAG_EN
G ND _D
J TAG_EN
R ES E Tb
R ES ETb
1u
DETEC T_TR S
DETEC T_TR S
+1.8V_A
0
0
B LANK b
B LANK b
1u
S MP T E _B Y P AS S b
NP
+1.8V
+1.8V_ A
G ND _D
DVB _ASI
DVB _ASI
FIF O_EN
NP
NP
10n
G ND _A
NP
G ND _ A
G ND _D
P CLK
33R
IO_VDD
P CL K
FIFO_EN
DETEC T_TR S
B LANK b
S MP TE _B Y P AS S b
Provisions for loop bandwidth
control if required by application
DVB _ASI
G ND _A
FIF O_EN
10n
G ND _A
10n
1u
DATA [9..0]
G ND _A
1u
10n
NP
+1.8V_A
10n
G ND _A
10n
75
75
G ND _A
G ND _A
1u
C
G ND _A
G ND _A 1
2
3
4
S DO
5
S DOb
6
7
8
9
10
S DO_E N
11
IOP ROC_EN
12
J TAG_EN
13
R ES ETb
14
LFPLL_GND
PLL_VDD
C D_VDD
S DO
S DO
C D_GND
NC
R SE T
VBG
S DO_E N
IOPRO C_EN
J TAG_EN
R ES ET
R
L
10n
281R (+/- 1%)
+1.8V_A
4.7u
G S 9092
9092A
G ND _D
IO_GND
DIN9
DIN8
DIN7
DIN6
DIN5
DIN4
DIN3
DIN2
DIN1
DIN0
W R_RE SE T
W R_CLK
IO_VDD
C
+1.8V
G ND _A
42
41
40
39
38
37
36
35
34
33
32
31
30
29
DATA 9
DATA 8
DATA 7
DATA 6
DATA 5
DATA 4
DATA 3
DATA 2
DATA 1
DATA 0
W R_RE S E Tb
W R_CL K
IO_VDD
10n
1u
15
16
17
18
19
20
21
22
23
24
25
26
27
28
B NC
L F+
V CO _G ND
LB_CO NT
VCO _VDD
F IF O_ EN
DET E C T _ TR S
B LANK
S MPTE _B YP AS S
C OR E_GND
DVB _ASI
R SV
C OR E_ VDD
PCL K
IO_ VDD
U3
C OR E_VDD
C S_TMS
S CLK_TC K
C OR E_GND
S D O UT _T DO
S DIN_TDI
IO_ VDD
NC
S TAT0 (H, F IF O_FULL)
IO_ GND
S TAT1 (V, F IF O_ EMPT Y)
S TAT2 (F )
NC
IO_ GND
+1.8V_A
56
55
54
53
52
51
50
49
48
47
46
45
44
43
47n
+1.8V_A
S MP TE _B Y P AS S b
G ND _D
R
B NC
L
4.7u
G ND _A
10n
R, L and C form the output return loss
compensation network.
Values are subject to change.
W R_RE S E Tb
W R_CL K
G ND _D
W R_CL K
G ND _D
S TAT 2
S TAT 1
S TAT 0
C Sb_TMS
S CL K_TC K
S DOUT_TDO
S DIN_TDI
Unused GSPI inputs should
be pulled up to IO_VDD.
W R_R E S E Tb
IO_VDD
Rt
Rt
Rt
Ct
Ct
Ct
10n
G ND _D G ND _D G ND _D
1u
G ND _D
Rt and Ct values based on
GSPI trace layout.
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6. Package & Ordering Information
6.1 Package Dimensions
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6.2 Recommended PCB Footprint
0.25
0.50
0.55
7.70
6.76
CENTER PAD
NOTE: All dimensions
are in millimeters.
6.76
7.70
The Center Pad of the PCB footprint should be connected to the CORE_GND plane by a
minimum of 25 vias.
NOTE: Suggested dimensions only. Final dimensions should conform to customer design rules
and process optimizations.
6.3 Packaging Data
Parameter
Value
Package Type
8mm x 8mm 56-pin QFN
Package Drawing Reference
JEDEC M0220
Moisture Sensitivity Level
3
Junction to Case Thermal Resistance, θj-c
12.2°C/W
Junction to Air Thermal Resistance, θj-a (at zero airflow)
25.8°C/W
Psi
9.1°C/W
Pb-free and RoHS compliant
Yes
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Data Sheet
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6.4 Package Marking
Pin 1
Indicator
GS9092A
XXXXE3
YYWW
Instructions:
GS9092A
XXXX
Package Mark
Last 4 digits (excluding decimal) of
SAP Batch Assembly (FIN) as listed
on Packing List
Pb-free & Green indicator
Date Code
E3
YYWW
Figure 6-1: Package Marking
6.5 Ordering Information
Part Number
Package
Temperature Range
GS9092ACNE3
56-pin QFN
0°C to 70°C
Revision History
Version
ECR
PCN
Date
Changes and / or Modifications
0
138237
–
February 2006
New document.
1
140248
39274
April 2006
Corrected termination dimensional tolerance
on packaging diagram.
2
143060
42121
November 2006
Updated Figure 2-1 Pb-free solder reflow
profile to 260oC. Modified serial output jitter
parameters in AC Electrical Characteristics.
3
152804
–
October 2009
Changed 6.1 Package Dimensions.
4
154185
–
May 2010
Converted document back to Data Sheet.
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Data Sheet
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DOCUMENT IDENTIFICATION
CAUTION
DATA SHEET
ELECTROSTATIC SENSITIVE DEVICES
The product is in production. Gennum reserves the right to make changes to
the product at any time without notice to improve reliability, function or
design, in order to provide the best product possible.
DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A
STATIC-FREE WORKSTATION
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Phone: +1 (905) 632-2996
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Phone: +91 (674) 653-4815
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Phone: +44 1279 714170
E-mail: [email protected]
Phone: (886) 2-8732-8879
Fax: (886) 2-8732-8870
4281 Harvester Road
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Canada
Phone: +1 (905) 632-2996
Fax: +1 (905) 632-2055
E-mail: [email protected]
Phone: +82-2-414-2991
Fax: +82-2-414-2998
E-mail: [email protected]
E-mail: [email protected]
Gennum Corporation assumes no liability for any errors or omissions in this document, or for the use of the circuits or devices described herein. The sale of
the circuit or device described herein does not imply any patent license, and Gennum makes no representation that the circuit or device is free from patent
infringement.
All other trademarks mentioned are the properties of their respective owners.
GENNUM and the Gennum logo are registered trademarks of Gennum Corporation.
© Copyright 2006 Gennum Corporation. All rights reserved.
www.gennum.com
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DVB-ASI
Data Sheet
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May 2010
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