DM5900 - Davicom Semiconductor Inc.

DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
DAVICOM Semiconductor, Inc.
DM5900
720H 1 channel NTSC/PAL Decoder with
fast switch function
DATA SHEET
Preliminary
Version: DM5900-DS-P01
August 19, 2015
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
REVISION HISTORY:
Date
Revision
Description
2012/03/19
1.1
Initial release
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Table of Contents
INTRODUCTION .....................................................................................................................5
FEATURES ....................................................................................................................................... 5
APPLICATIONS ................................................................................................................................. 6
TERMINAL ASSIGNMENT ........................................................................................................7
TERMINAL FUNCTIONS...................................................................................................................... 8
BLOCK DIAGRAM ................................................................................................................. 10
INTRODUCTION ............................................................................................................................. 11
Video Synchronization .......................................................................................................... 11
Automatic Gain Control ........................................................................................................ 11
Y/C Separation ...................................................................................................................... 11
UV demodulation .................................................................................................................. 11
Luma/Chroma Processor ...................................................................................................... 12
Mirror Function..................................................................................................................... 12
Video Interface ..................................................................................................................... 12
Fast Switch Parameter RAM ................................................................................................. 12
VIDEO INTERFACE .......................................................................................................................... 13
BT601 SYNCHRONIZATION SIGNALS...................................................................................... 15
FILTER RESPONSE ........................................................................................................................... 17
Anti-alias LPF ......................................................................................................................... 17
Decimation filter ................................................................................................................... 17
Luma notch filter .................................................................................................................. 18
Chroma band pass filter........................................................................................................ 18
Y sharpness filter .................................................................................................................. 19
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
UV demodulation low pass filter .......................................................................................... 20
PLL ...................................................................................................................................... 21
HOST INTERFACE.................................................................................................................. 23
INTERNAL CONTROL REGISTERS............................................................................................ 24
VIDEO DECODER ............................................................................................................................ 24
AGC ....................................................................................................................................... 25
Video Detection Misc............................................................................................................ 26
Color Killer ............................................................................................................................ 27
2D Comb Filter ...................................................................................................................... 28
PLL ............................................................................................................................................. 60
ELECTRICAL SPECIFICATIONS ................................................................................................ 63
ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE ................................ 63
Recommended Operating Conditions .................................................................................. 64
Crystal Specifications ............................................................................................................ 65
ELECTRICAL CHARACTERISTICS.......................................................................................................... 65
DC ELECTRICAL CHARACTERISTICS .................................................................................................... 65
Analog Processing and A/D Converters ................................................................................ 66
Timing ................................................................................................................................... 66
PACKAGING ......................................................................................................................... 69
ORDERING INFORMATION.................................................................................................... 71
DISCLAIMER................................................................................................................................ 71
PRODUCTS ................................................................................................................................. 71
CONTACT WINDOWS................................................................................................................... 71
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Doc No: DM5900-DS-P01
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Introduction
The DM5900 is a 1-channel video decoder designed for cameras with 720H CCD sensor.
The DM5900 converts 6.5 MHz analog CVBS signals to digital 27 MHz CCIR656 signals.
The DM5900 integrates an internal PLL. The DM5900 also features a patented fast
switch function. With the fast switch function, the DM5900 can decode up to 2 analog
CVBS with little frame rate loss.
Features
Video Decoder
 Accepts NTSC (M,J), PAL (B, D, G, H, I, M, Nc).
 Video decoder could be programmed to operate at 27MHz.
 Hardware Fast Switch function
 Fast Switch also controllable by software or external pin
 Software channel ID in active region
 10-bits video ADCs with built in 6.5 MHz analog low pass filter
 Automatic gain control for Luminance and Chrominance
 Programmable brightness, contrast, saturation, hue, and sharpness
 5-H comb filter for YC separation
 Support video interface YCbCr 4:2:2, 4:1:1, 4:2:0 format
 Support mirror function
 Chrominance line filter for PAL phase error
 DLL for video synchronization, supports 27MHz crystal within +/-1000 ppm variance
 Advanced video synchronization for weak and noisy CVBS. Supports video signal
transmitted by 500-meter long cable
 Support line lock camera
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Miscellaneous
 Use a single external 27MHz crystal to support 720H video
 One programmable PLL integrated
 Slave I2C bus
 Ultra low power consumption. Under 150mW for normal operation. Under 50mW for
suspend mode.
 32-pin LQFP (5mmx5mm) package or 32-pin QFN (4mmx4mm)
 1.8V core power, 3.3V analog power and 1.8V analog power
Applications
Suggested applications include
 DVR
 Car DVR
 Video capture card
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
INTREQ
RSTB
PDN
SDAT
SCLK
VD33_1
XTO
XTI
Terminal Assignment
32
31
30
29
28
27
26
25
INA0
3
22
VD0/SIAD
YGND
4
DM5900
21
VD1
AVSS
5
32 PIN LQFP
20
VD2
INB
6
19
VD3
AVDPLL
7
18
VD33_0
AVSPLL
8
17
VD4
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9
10
11
12
13
14
15
16
VD5
VDD
VD6
23
VD7
2
VSS
INA1
CLKX2
VSSPST
MPOUT
24
HSYNC
1
VSYNC
AVDD
7
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Terminal Functions
Pin Name
Pin number
Type
Description
Analog Video Signals
INA0
3
INA1
2
A
A
YGND
4
G
INB
6
A
Analog input A0.
Analog input A1.
Analog ground. (used as signal input
reference)
Analog input B. (analog chroma input)
Pin Name
Pin number
Type
Description
Video Output Signals
Horizontal Sync and multi-purpose output.
See register for control information.
Vertical Sync and multi-purpose output.
See register for control information.
Data output clk.
Multi-purpose output pin.
See register for control information.
HSYNC
10
O
VSYNC
9
O
CLKX2
12
O
MPOUT
11
O
VD7,VD6,VD5,
VD4,VD3,VD2,
VD1
14,15,16,17,
I/O
19,20,21
Digital Video data output of 4:2:2
YCbCr[7:1]. VD[7] is the MSB
VD0/SIAD
22
I/O
Digital Video data output of 4:2:2 YCbCr.
SIAD: The i2c interface address select pin
0. Default pull-down device ID: 8’hB8
otherwise device ID is 8’hBA
Pin Name
Pin number
Type
Description
XTI
25
I
XTO
26
O
Clock signals
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Doc No: DM5900-DS-P01
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Clock input. A 27 MHz fundamental crystal
or a single-ended oscillator can be
connected
Clock output. For connecting a crystal
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Pin Name
Pin number
Type
Description
General Signals
RSTB
31
PDN
30
INTREQ
32
I
I
O
Reset input. Low active
Power down control pin. # is high active
Interrupt output signal
Pin Name
Pin number
Type
Description
Host Interface
SCLK
SDAT
28
29
I
I/O
The I2C serial interface Clock line.
The I2C serial interface Data line.
Pin Name
Pin number
Type
Description
P
G
P
P
G
P
G
P
G
1.8V digital core power
1.8V digital ground
3.3V digital I/O power
3.3V digital I/O power
3.3V digital I/O ground
1.8V analog supply ADC.
Analog ground.
1.8V analog supply PLL
Analog ground PLL
Power and Ground Pins
VDD
23
VSS
13
VD33_0
18
VD33_1
27
VSSPST
24
AVDD
1
AVSS
5
AVDPLL
7
AVSPLL
8
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Block Diagram
INA0
INA1
INB
Fast Switch
Select
ADC
ADC
Video ADC
A
B
CVBS
C_sv
Gain
Adjust
AGC+CAGC
Y_cvbs
Fast Switch
Select
Fast Switch Parameter
RAM
Video Synchronization
Y/C Separation
2D Comb Filter
SV
C
UV Demod
Y
U
V
Luma/Chroma Processor
INVEN
Video Decoder
Mirror Function
Video Interface BT.656
BT.656
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Introduction
The DM5900 video decoder contains a Video Synchronization block, an AGC block, an
YC separation block, a UV Demodulation block, a Luma/Chroma Processor block, a
Mirror Function block and a BT 656 output block. A patented Fast Switch is also included.
In addition to CVBS, the DM5900 video decoder supports S-Video as well.
Video Synchronization
Video Synchronization performs video detection function. It automatically detects
NTSC(M), NTSC(443), PAL(B,D,G,H,I), PAL(M), PAL(N), PAL(60). A smart video
detection algorithm has been adopted. Therefore the DM5900 can perform fast and
stable video synchronization even if the input signal is weak or the external crystal is
with error as large as +/- 1000 ppm.
Automatic Gain Control
Automatic Gain Control (AGC) block performs both Luma AGC and Chroma AGC
(CGAC). After video synchronization, Luma AGC adjusts input Luma level to the
standard level (1Vpp). A further CAGC is performed after Luma AGC for signal with
different Luma and Chroma attenuation.
Y/C Separation
Y/C Separation is for CVBS input only. After this block CVBS signal is separated into
Luma and Chroma components. A 5-H 2D comb filter is adapted in the Y/C separation
block.
UV demodulation
After Y/C separation, the UV demodulation block performs UV demodulation to the
Chroma component. The phase and frequency of the UV demodulation is from a color
burst subcarrier tracking block for both NTSC and PAL mode. A UV demodulation LPF is
also adopted to filter out chroma noise.
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Luma/Chroma Processor
This block contains a programmable Luma sharpness filter. Hue, Saturation, Brightness
and Contrast adjustment are also supported. The adjusted video is then transformed
from YUV to YCbCr domain for CCIR656 output interface.
Mirror Function
The DM5900 also supports mirroring function. When mirroring function is performed, the
samples at each line are horizontally left-right flipped. The following figure illustrates the
result of horizontal mirroring.
Mirror Function
Mirror
Video Interface
The DM5900 video decoder supports 27MHz BT.656 video output format with BT.601
synchronization signals. It also supports YCbCr 4:1:1 and 4:2:0 formats. A horizontal
cropping function also included in this block.
Fast Switch Parameter RAM
The DM5900 features a patented hardware video source fast switch function. The Fast
Switch block has a table which stores video characteristic. Each time HW switches to a
previously tracked video source it could complete video synchronization within several
lines. With this feature, the DM5900 can decode up to 2 CVBS with little frame rate loss.
Preliminary
Doc No: DM5900-DS-P01
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Video Interface
The DM5160 outputs 27MHz CCIR656 with 720x480/720x576 resolution (conventional
720H). For these video outputs, SAV (Start of Active Video) and EAV (End of Active
Video) are inserted to indicate active video interval. Each channel uses one output port
to transmit video data, that is, luminance and chrominance data are transmitted through
the same port. The output timing diagram is shown below.
YCbCr 4:2:2
CLK
CCIR_n[7:0]
FFh
00h
00h
XY
80h
EAV code
4 data cycles
10h
80h
10h
Horizontal Blanking
FFh
00h
00h
XZ
Cb0
Y0
Cr0
Y1
SAV code
4 data cycles
Cb2
Y2
Cr2
Y3
Cbn
Yn
Crn
Yn+1
FFh
00h
Active Horizontal Line
HACITVE
The number of data cycles in active horizontal line will vary according to the output
YCbCr 4:2:2 format. For video outputs, the active horizontal line contains 1440 cycles.
The DM5900 also supports the 4:2:0 and 4:1:1 format. The output timing diagram is
shown below.
YCbCr 4:2:0
Odd Line:
CLK
CCIR_n[7:0]
FFh
00h
00h
XY
80h
EAV code
4 data cycles
10h
80h
10h
FFh
Horizontal Blanking
00h
00h
XZ
Cb0
Y0
Y1
Cb2
SAV code
4 data cycles
Y2
Y3
Cbn
Yn
Yn+1
FFh
00h
Crn
Yn+1
FFh
00h
Active Horizontal Line
HACITVE
Even Line:
CLK
CCIR_n[7:0]
FFh
00h
00h
EAV code
4 data cycles
XY
80h
10h
80h
Horizontal Blanking
10h
FFh
00h
00h
SAV code
4 data cycles
XZ
Y0
Cr0
Y1
Y2
Cr2
Y3
Yn
Active Horizontal Line
HACITVE
The number of data cycles in active horizontal line will vary according to the output
YCbCr 4:2:0 format. For video outputs, the active horizontal line contains 1080 cycles.
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Doc No: DM5900-DS-P01
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
YCbCr 4:1:1
CLK
CCIR_n[7:0]
FFh
00h
00h
XY
EAV code
4 data cycles
80h
10h
80h
10h
Horizontal Blanking
FFh
00h
00h
XZ
Cb0
Y0
Cr0
Y1
SAV code
4 data cycles
Y2
Y3
Cbn
Yn
Crn
Yn+1
Yn+2 Yn+3
FFh
00h
Active Horizontal Line
HACITVE
The number of data cycles in active horizontal line will vary according to the output
YCbCr 4:1:1 format. For video outputs, the active horizontal line contains 1080 cycles.
SAV and EAV indicate the active video interval. The values of the first three bytes in
SAV and EAV are invariant preamble: 0xFF, 0x00, and 0x00. Different values are
designated to the last byte according to different conditions: Field, V time, and H time.
The MSB of this byte is always set to 1 and it’s followed by three bits to represent the
condition of F, V, and H respectively. The last four bits are used as protection bits. The
detailed code sequences of SAV and EAV are illustrated in the following table.
FVH
Value
Condition
SAV/EAV Code Sequence
Field
V time
H time
F
V
H
Byte 0
Byte 1
Byte 2
Byte 3
Odd
Odd
Odd
Odd
Even
Even
Even
Even
Active
Active
Blank
Blank
Active
Active
Blank
Blank
SAV
EAV
SAV
EAV
SAV
EAV
SAV
EAV
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x80
0x9D
0xAB
0xB6
0xC7
0xDA
0xEC
0xF1
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Doc No: DM5900-DS-P01
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
BT601 Synchronization Signals
External syncs are provided via the following signals
˙VSYNC (vertical sync signal)
˙HSYNC (horizontal sync signal)
˙FID (field indicator)
VSYNC, HSYNC and FID are programmed to be the external syncs for BT.601. The
default setting for a 525/625 line video output are given as an example below.
525-Line
525
1
2
3
4
5
6
7
8
9
10
11
20
21
22
262
263
264
265
266
267
268
269
270
271
272
273
282
283
284
Composite
Video
VSYNC
REG4A[1]
=1'b1
VSYNC
REG4A[1]
=1'b0
FID
Composite
Video
VSYNC
REG4A[1]
=1'b1
VSYNC
REG4A[1]
=1'b0
FID
625-Line
622
623
624
625
1
2
3
4
5
6
7
20
21
22
23
310
311
312
313
314
315
316
317
318
319
320
333
334
335
336
Composite
Video
VSYNC
REG4A[1]
=1'b1
VSYNC
REG4A[1]
=1'b0
FID
Composite
Video
VSYNC
REG4A[1]
=1'b1
VSYNC
REG4A[1]
=1'b0
FID
Fig: BT 601 Timing diagram
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
EAV
Blank
SAV
Active Region
NTSC
0
1
2
3
4
5
6
7
8
9
...
266
267
268
269
270
271
272
273
274
275
276
277
278
279
...
1711 1712 1713 1714 1715
PAL
0
1
2
3
4
5
6
7
8
9
...
278
279
280
281
282
283
284
285
286
287
288
289
290
291
...
1723 1724 1725 1726 1727
FF
00
00
XX
80
10
80
10
80
10
...
80
10
FF
00
00
YY
Cb
0
Y
0
Cr
0
Y
1
Cb
2
Y
2
Cr
2
Y
3
...
Y
717
ITU 656
Data Format
HSYNC
REG4A[3]
= 1'b1
Cb
718
Y
718
Cr
718
Y
719
HSYNC Start
HSYNC
REG4A[3]
= 1'b0
HSYNC Start
Length set by
REG4A[1:0]
Fig: Horizontal Synchronization Signals
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Doc No: DM5900-DS-P01
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Filter response
Anti-alias LPF
Decimation filter
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Doc No: DM5900-DS-P01
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Luma notch filter
Chroma band pass filter
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Y sharpness filter

NTSC

PAL
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
UV demodulation low pass filter
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
PLL
The DM5900 has an internal PLL to generate the system and pixel clocks. A
27MHz is required for the PLL.
The default PLL setting is shown in the following table.
Crystal In clock
(MHz)
PLL out (MHz)
Function
27
54
System/pixel clock
PLL1
PLL default operated clock
The PLL parameters for various system configurations are shown in the following table.
Crystal(MHz)
PLL
out(MHz)
M
N
OD
27
54
14
0
2
PLL1
Formula:
CLK_OUT = XIN * (M+2)/[(N+2)*OD*2]
Where CLK_OUT: PLL output frequency
XIN: PLL input frequency.
M: The numerator of PLL formula.
[N, OD]: The denominator of PLL formula.
Attention:
1. 100MHz <= CLK_OUT * OD <= 250MHz
2. 1MHz <= XIN/(N+2)<=25MHz
3. OD >=1
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Truth Table:
PD
BP
0
0
0
CLK_OUT
0
0
0
XIN
Don’t Care
1
0
XIN
1
0
Don’t Care Don’t Care
OE CLK_OUT
Other
Undefined
PD: Power down control; Active high.
BP: Bypass XIN to CLK_OUT; Active high.
OE: CLK_OUT enable pin, Active low.
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Host Interface
In the DM5900, I2C is used for setting configuration and parameters, for example,
brightness, contrast, saturation, hue, and sharpness control. The typical timing diagram
of I2C write and read access is illustrated in the following figure.
SI2CLK
1
2
8
9
1
2
8
9
1
8
2
9
SI2CD
START
ACK
WRITE ADDRESS
REG ADDRESS
ACK
WRITE DATA
ACK
STOP
Write operation of I2C bus
SI2CLK
1
2
8
9
1
2
8
1
9
2
8
1
9
2
8
9
SI2CD
START
WRITE ADDRESS
ACK
REG ADDRESS
ACK
STOP
START
READ ADDRESS
ACK
READ DATA
ACK STOP
Read operation of I2C bus
1
0
1
Write/Read Address
Slave Address
1
1
0
SIAD
R/W
0: Write; 1: Read
The external Pull-up/Pull-down resister connected to the pin “VD0/SIAD” indicates the
device address SIAD. When pull-up resistor is connected to the pin, it indicates SIAD
with a high value. Otherwise when pull-down resistor is connected to the pin, it indicates
SIAD with a low value.
SIAD = 0
SIAD = 1
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
Write Address
Read Address
B8
BA
B9
BB
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Internal Control Registers
Video Decoder
HSYNC signal:
BLANK TIP
HSYNC_LEVEL
HSYNCTH
SYNC TIP
HSYNC
signal
HSYNC_LEVEL=SYNC TIP + HSYNCTH
Address= 8’h00
VD Control
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
1
0
1
0
BBRSTZ
IFLDFA
STSW
FASTS
WEN
S_Video
ADC_A
ADI_AD
C
EN
SRSTZ
SRSTZ: SW reset video decoder, WO
EN: Enable Video decoding function
S_Video: When input signal is S-Video, set this bit to be 1
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
FASTSWEN: Enable fast switch function
IFLDFASTSW: Set 1: Fast switch boundary at every field end. Only Valid when
REG04[3] : 1’b0.
Set 0: Fast switch boundary at frame end.
BBRSTZ: Base Band reset only, WO
Address= 8’h01
WATCHSEL
7-bit
6-bit
5-bit
4-bit
4’hf
3-bit
2-bit
0
0
3-bit
2-bit
1-bit
0-bit
2’b01
AGC_LMT
AGC_LMT: Analog AGC range
AGC
Address= 8’h02
AGC
7-bit
6-bit
5-bit
4-bit
4’h0
1
AGC_gain
1-bit
0-bit
0
1
1
AGC_DT
RACKE
N
HWAGC
EN
SYNCC
AGCEN
SYNCCAGCEN: Set 1, enable CAGC gain update.
HWAGCEN: Hardware AGC enable
AGC_DTRACKEN: Dynamic sync tip tracking enable
AGC_gain: SW set AGC gain, RW
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h03
AGCDOWN_TH
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h63
AGCDOWNTH[7:0]
AGCDOWNTH: ADC couldn’t larger than 867, if it is, will decrease the agc_gain.
Address= 8’h04
AGCDOWN_TH
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
0
0
0
0
0
0
FASTSWOPT
OFASTS
W
1-bit
0-bit
2’h3
AGCDOWNTH[9:8]
OFASTSW: Set 1: FASTSW control from input PIN (MPOUT).
Set 0: FASTSW source from internal logic related to FASTSWOPT, RW
FASTSWOPT: Set fast switch frame length ((FASTSWOPT+1)x8), RW
Video Detection Misc
Address= 8’h05
HSYNCTH
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h30
HSYNCTH
HSYNCTH:
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
Set horizontal sync threshold level
26
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h06
Vdet_misc
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
1
0
1
1
BLACK
OUT
SETUP_
7.5IRE
OCCIRE
N
ColorPO
UT
MONOU
T
MUKSEL
ColorPOUT: Set 1, VD will drive Color panel when no video signal detected, otherwise
drive black panel. Color panel setting see 0x2A[6:4]
OCCIREN: Set 1, VD will out CCIR656
SETUP_7.5IRE: Set 1, add 7.5 IRE to the BLANK_TIP
BLACKOUT: Set 1, VD will drive black panel or blue panel when no video signal
detected.
MONOUT: Force CCIR656 Cb=128, Cr=128
Color Killer
Address= 8’h08
ColorKill TH
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h30
CBDIFFTH[7:0]
CBDIFFTH: Set the color burst difference threshold
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
27
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
2D Comb Filter
Address= 8’h09
Com2D_CFG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
NOTCH
FLTSEL
DIS_VC
OMB
1-bit
0-bit
FORCE_
MONO
DIS_VCOMB: Set 1 to disable vertical comb filter
NOTCHFLTSEL: Set 0, use the wide band notchfilter
Set 1, use the narrow band notchfilter
FORCE_MONO: Set 1 to force the MONO signal mode.
Address= 8’h0C
PAL SW CFG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
2’h0
0
0
Y_SHARP_GAIN
PALSWI
NV
PALSW
OPT
PALSWOPT: Set 1 to use standard pal switch define to demodulation.
For line lock camera, set this bit to 1.
PALSWINV: Only valid when PALSWOPT=1. Set 1, PAL switch will be inversed.
Y_SHARP_GAIN: 2’h0: no sharpness function
2’h1: sharpness gain 0.5
2’h2: sharpness gain 1
2’h3: sharpness gain 2
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
28
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h10
VD Decoder status
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
PAL_Nc
PALI,B,B1,G
,H,D/
PAL_N
PAL_M
PAL_60
NTSC443
NTSCJ/NTSCM
COLOR
KILL_52
5
COLOR
KILL_62
5
The register show the video decoded status
RO. Set 1 to enable SW force mode.
Address= 8’h11
VD_STS
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
CLKLO
CK_STS
T
DET_NO
NILT
DET_NONILT: RO. Detect the non-interlaced signal format.
CLKLOCK_STST: RO. Clock offset lock status
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
29
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h12
DAGC_LMT
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
4’h3
4’hf
CLKOFF_LOCK
DAGC_LMT
0-bit
DAGC_LMT: Digital AGC range
CLKOFF_LOCK: Clock offset locking function. 4’h0: always tracking
Others: clock offset lock within CLKOFF_LOCK * 8 ppm.
Address= 8’h13
VD_CFG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
1
1
0
1
0
1
1
SWFAR
54MD
HWFAR
54OPT
GAINLO
CK_OPT
CLKOFF
DIS
CBADJ
BLANK_
SHIFTE
N
ALINEL
OCK
CLKOFF
_TRACK
EN
CLKOFF_TRACKEN: CLKOFFSET tracking enable
ALINELOCK: Active line lock option, fixed line start position.
BLANK_SHIFTEN: Set 1, blank level will be modified according to color burst mean
value per line.
CBADJ: Color burst adjust
CLKOFFDIS: Disable clock offset tracking function
GAINLOCK_OPT: Enable gain locking function after 16 frame decoded.
HWFAR54OPT: Set 1, FAR4FS will operate in 54Mhz when detecting 4.43 subcarrier
SWFAR54MD: Software force FAR4FS operate in 54MHz.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
30
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h14
VD_CFG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
1
0
1
1
1
VDETOP
T
LTRACK
OPT
CLKLO
CKOPT
LLCFASTMD
CLKLOCKOPT:
Set 0 : Always tracking clock offset when
abs(clkoffset)> CLKOFF_LOCK (REG12[7:4])
Set 1 : keep tracking until first time
abs(clkoffset)< CLKOFF_LOCK(REG12[7:4])
LTRACKOPT:
Set 1: Hardware continues active line (video) decoding when miss
valid HSYNC signal until video loss.
Set 0: Hardware performs active line (video) decoding until valid
HSYNC signal detected.
VDETOPT:
Set 1: using rising edge of HSYNC signal as line detection timing.
Set0: using falling edge of HSYNC signal as line detection timing.
For long cable application, set this bit to 1.
LLCFASTMD[1:0]:
Line lock Auto Detection stable period. Valid when REG3B[5]=1.
Set 0: check line lock mode right after decode started
Set 1: check line lock mode after 8 frames decoded.
Set 2, 3: check line lock mode after 16 frames decoded.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
31
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h15
CLKOFF_CTL
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
1
1
0
0
CLKFRA
CEN
FIXHSY
NC_MD
L
SWFIXC
LOCKO
FF
SWFIXCLOCKOFF: Set 1, SW fixed clock offset. Force clock offset value=
{REG25[4:0],REG24[7:0],REG23[7:0]}.
FIXHSYNC_MDL: Set 1, fixed the HSYNC_LEVEL to be REG05 HSYNCTH.
CLKFRACEN: Set 1, enable fraction clock offset tracking.
Address= 8’h17
HSYNC TRACK
7-bit
6-bit
1
0
HMIDTR
ACK
SWBLA
NKTIP
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
6’d10
HMIDTRACK: Set 1: tracking BLANK TIP each line at Front Porch Blanking position
(REG4B[7:0]).
Set 0: tracking BLANK TIP at CVBS serration period.
SWBLANK1TIP: Only valid when REG17[8] = 1. Set 1: the estimation position of
blanking level is REG4B[7:0].
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h18
LOWTRACK
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
1
0
0
0
1
0
FSHYBC
OPT
DISCOL
KILL
NONINT
EN
CAGCO
PT
TRHSYN
COPT
LOWTR
ACK
TRHSYN
CTH
TRHSYNCTH: Set 1: enable HW auto update HSYNCTH during video detection.
Set 0: use fix HSYNCTH (REG05[7:0]) during video detection.
LOWTRACK: Set 1: tracking SYNC TIP per line(s) from LOWLEVEL TRACKER.
Set 0: tracking SYNC TIP at CVBS serration period.
TRHSYNCOPT: Set 1: use fix HSYNCTH (REG05) during video detection
Set 0: enable HW auto update HSYNCTH during video detection.
CAGCOPT: Set 1 to enable color AGC.
NONINTEN: Set 1 to enable auto detect non-interlaced singal.
DISCOLKILL: Set 1 to disable auto detect color kill mode
FSHYBCOPT: ONLY valid under FASTSWEN.
Set 1: Keep previous tracked HSYNCTH
Set 0: use REG05 as HSYNCTH
Address= 8’h1A
BURST DETECT OPTION
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
1
FCOLR
DETEN
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
COLR2C
YC
BRST_DLY
33
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
BRST_DLY:
The number of color burst cycle delay.
COLR2CYC:
Set 1, using two color burst cycle average to demodulation.
Set 0, using four color burst cycle average to demodulation.
FCOLRDETEN:
Set 1, fixed the color burst detect position.
Set 0, using auto detect color burst.
Address= 8’h1B
Reserved
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
Reserved
Reserved: RO.
Address= 8’h20
AGC gain
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
DAGC Gain
AAGC Gain
AAGC Gain: Analog AGC gain setting, RO
DAGC Gain: Digital AGC gain setting, RO
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h21
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SYNC_TIP[7:0]
SYNC_TIP: RO
Address= 8’h22
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
BLANK_TIP[7:0]
BLANK_TIP: RO
Address= 8’h23
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
CLKOFF[7:0]
CLKOFF: RO, internal 2’s compliment clock offset tracking status. Unit (ppm)
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
35
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h24
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
CLKOFF[15:8]
CLKOFF: RO, internal 2’s compliment clock offset tracking status. Unit (ppm)
Address= 8’h25
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SYNC_TIP[20:16]
SYNC_TIP: RO
Address= 8’h26
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
BLANK_TIP[9:8]
SYNC_TIP[9:8]
BLANK_TIP: RO
SYNC_TIP: RO
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
36
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h29
Blue Panel Select
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
PALBLP
ANL
NTSCBL
PANL
PALBLPANL: Valid when REG06[3]=1. When no signal is presented, SW sets PAL blue
panel out.
NTSCBLPANL: Valid when REG06[3]=1. When no signal is presented, SW sets NTSC
blue panel out.
When PALBPANL=0, NTSCBLPANL=0. HW takes PAL as default mode.
Address= 8’h2A
VD_MISC
7-bit
6-bit
5-bit
4-bit
0
0
0
0
ColorOut
3-bit
2-bit
1-bit
0-bit
2’h0
2’h2
MPOUTMD
MPP_OPT
MPP_OPT: 2’h0: drive field info to pin.
2’h1: drive Active info to pin.
2’h2: drive NOVID info to pin.
2’h3: drive FASTSW_SEL info to pin.
MPOUTMD: 2’h0: drive the XTI clock to MPOUT pin.
2’h1: drive the MPP to MPOUT pin.
2’h2 or 2’h3: drive FID_601 to MPOUT pin.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
37
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
ColorOut: valid when REG06[3]=1 and REG06[0]=1.
3’h0: blue panel
3’h1: red panel
3’h2: white panel
3’h3: green panel
3’h4: magenta panel
3’h7: color rotation mode, blue  red 
white  green  magenta  black  blue…
Color Process
Address= 8’h2B
COLOR_EXT
7-bit
6-bit
0
1
5-bit
4-bit
2’h0
3-bit
2-bit
1-bit
0-bit
0
0
0
1
NTSC_C
CIREXT
EXT_CO
LOR
CCIRBL
ANKOP
T
EXT_COLOR: Set 1, Y/Cb/Cr value from 8’h1~8’hfe
NTSC_CCIREXT: Set 1 in NTSC mode, CCIR656 output 487 active line.
CCIRBLANKOPT: Set 1: output blanking period close to standard CCIR656.
Set 0: with short V blank lines before active field start.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
38
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h2C
Hue
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
2-bit
1-bit
0-bit
8’h0
Hue[7:0]
Hue: Hue[9:0] = {REG33[1:0],REG2C[7:0]}
10’h0~10’h3ff

0~360 degree
Address= 8’h2D
Saturation
7-bit
6-bit
5-bit
4-bit
3-bit
8’h10
Saturation
Saturation: unsigned, Range: 0 ~ 15.9375
8’hff: maximum, about x16 color intensity.
8’h00: (no color)
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
39
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h2E
Contrast
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
2-bit
1-bit
0-bit
8’h80
Contrast
Contrast: unsigned, Range : 0~2
8’hff: maximum (x2) contrast
8’h80: original signal (x1)
8’h00: minimum contrast
Address= 8’h2F
Brightness
7-bit
6-bit
5-bit
4-bit
3-bit
8’h00
Brightness
Brightness: singed
8’h7f: brightest
8’h80: darkest
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
40
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h30
INT Mask
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
MDCHG
_1_MAS
K
VLOST_
1_MASK
VDET_1
_MASK
MDCHG
_0_MAS
K
VLOST_
0_MASK
VDET_0
_MASK
VDET_0_MASK: Set 1, enable register 0x31 VDET_0 interrupt function, RW
VLOST_0_MASK: Set 1, enable register 0x31 VLOST_0 interrupt function, RW
MDCHG_0_MASK: Set 1 enable register 0x31 MDCHG_0 interrupt function, RW
VDET_1_MASK: Set 1 to enable register 0x31 VDET_1 interrupt function, RW
VLOST_1_MASK: Set 1 enable register 0x31 VLOST_1 interrupt function, RW
MDCHG_1_MASK:Set 1 enable register 0x31 MDCHG_1 interrupt function, RW
Address= 8’h31
INT status
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
MDCHG
_1
VLOST_
1
VDET_1
MDCHG
_0
VLOST_
0
VDET_0
VDET_0: when detect video signal, the interrupt set, set by HW, set 1 to clear
VLOST_0: when lose video signal, the interrupt set, set by HW, set 1 to clear
MDCHG_0: when detect video signal change, the interrupt set, set by HW, set 1 to clear
VDET_1: valid for fast switch mode channel B, when detect video signal, the interrupt
set, set by HW, set 1 to clear
VLOST_1: valid for fast switch mode channel B, when lose video signal, the interrupt set,
set by HW, set 1 to clear
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
41
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
MDCHG_1: valid for fast switch mode channel B, when detect video signal change format,
the interrupt set, set by HW, set 1 to clear
Address= 8’h33
HUE
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
Hue[9:8]
Hue: Hue[9:0] = {REG33[1:0],REG2C[7:0]}
10’h0~10’h3ff 
0~360 degree
Address= 8’h34
FIELD OPTION
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
FIELD_I
NV
FIELD_
ONLY
FIELD_ONLY: CCIR656 signal output field 0 only
FILED_INV: Inverse output CCIR656 signal field
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
42
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h35
Chroma Average
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
1
CAVNTS
CMD
CAVPAL
MD
INVEN
INVEN:
Mirror function enable. Set 1, enable mirror function.
See Pag.12
CAVNTSCMD: Set 1, enable NTSC mode Cb/Cr line average.
Set 0, disable.
CAVPALMD: Set 1, enable PAL mode Cb/Cr line average.
Set 0, disable.
Address= 8’h36
MASK CCIR656 LINE
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
1
MASKA
LL
PAL_M
SK3
PAL_MSK3: Set 1, it will mask field 0 and 1 last lines according to REG37
MASKALL: mask all active
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
43
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h37
MASK LINE
7-bit
6-bit
5-bit
4-bit
3’h0
0
3-bit
2-bit
1-bit
0-bit
3’h0
0
MSK_LINE_F1
MSK_LINE_F0
MSK_LINE_F0: When REG36[0] = 1, Mask Field 0 last number of active lines (0-7)
MSK_LINE_F1: When REG36[0] = 1, Mask Field 1 last number of active lines (0-7)
Address= 8’h38
MONO TH
7-bit
6-bit
5-bit
1
0
0
4-bit
3-bit
MONO_
EN
2-bit
1-bit
0-bit
5’h1f
MONO_TH
MONO_TH: MONO mode AGC threshold. AGC max value 30. when set MONO_TH 31.
AGC will always less than MONO_TH.
MONO_EN: Set 0, when no valid color burst detected.
Output CCIR656 Y through Notch filter.
Set 1, when no valid color burst detected. Output CCIR656
Y through Notch filer if AGC_GAIN>=MONO_TH, otherwise output
CCIR656 Y with ADC data.
When No valid color burst detected (color kill mode). Output CCIR656
Cb/Cr with 128 (no color).
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h39
COLOR BURST DETECT
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
1
3’h4
4’h5
CAGCT
RACKE
N
COLBSTCYC
COLBSTHSEL
0-bit
COLBSTHSEL: Color Burst detection threshold.
4’h0 :COLBSTH = 0.125*(BLANK TIP – SYNC TIP)
4’h1 :COLBSTH = 0.25*(BLANK TIP – SYNC TIP)
4’h2 :COLBSTH = 0.375*(BLANK TIP – SYNC TIP)
4’h3 :COLBSTH = 0.5*(BLANK TIP – SYNC TIP)
4’h4:COLBSTH = 0.09375*(BLANK TIP – SYNC TIP)
4’h5 :COLBSTH = 0.078125*(BLANK TIP – SYNC TIP)
4’h6 :COLBSTH = 0.0625*(BLANK TIP – SYNC TIP)
4’h7 :COLBSTH = 0.03125*(BLANK TIP – SYNC TIP)
4’h8 :COLBSTH = 0
When color burst peak to peak value larger than
COLBSTHSEL, it’s been considered a good color burst signal cycle
COLBSTCYC: When COLBSTCYC numbers of valid color bust cycle detected, VD will
decode video with color and Color AGC will optionally started. Otherwise
will enter color kill mode
CAGCTRACKEN: CAGC Track enable. Set 0 to disable CAGC track
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h3A
CAGC
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
1
0
0
0
0
0
0
0
CAGCE
N
CAGCL
OCKOP
cagc_gain
cagc_gain: RO. Chroma gain value. [5:2] integer, [1:0] fractional. (max 15.75, min 1)
CAGCLOCKOPT: Set 1, enable color AGC tracking until CAGC gain stable.
Set 0, color AGC tracking for first 15 video decoded frames.
CAGCEN : Set 1, enable color AGC.
Address= 8’h3B
Line Lock Camera
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
1
0
0
0
0
0
0
0
CAMLO
CKOPT
LOCKC
AM_DET
HLOCK
DET1
ACTSHIFT
ACTSHIFT: Active region shift, 2’s compliment (-16~15)
HLOCKDET1: Set 1, to enable auto-detect Line Lock camera.
LOCKCAM_DET: RO, Line lock camera detected. (RO)
CAMLOCKOPT: Set 1, when line lock camera used.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
46
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h3C
LLOCKTH
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h20
LLOCKTH
LLOCKTH: Line Lock auto detection threshold, valid only when 0x3B[5]=1.
When REG13[1]=1, line boundary difference within a field larger than
LLOCKTH, Line Lock Camera detected.
Note: when clock offset tracking unstable and REG13[1]=1, line boundary
difference might be large within a field.
Address= 8’h3D
VD_CFG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
1
0
0
0
0
0
0
ORSTO
PT
OBFOV
F
OBFUD
F
LLFAR4
FSOPT1
LLFAR4
FSOPT
LLFAR4FSOPT: Set 1, decode video chroma without clock offset compensation.
Set 0, decode video choma after clock offset compensation.
Set this bit to one for Line Lock Camera.
LLFAR4FSOPT1: Set 1, Auto adjust the active region related to clock offset.
When force line lock mode, set this bit to 1;
OBFUDF: RO. CCIR output buffer under flow.
OBFOVF: RO. CCIR output buffer over flow.
ORSTOPT: Set 1, Reset CCIR output buffer when output buffer overflow or underflow.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h3E
DROP FRAME
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
FRDROP
FRDRO
PEN
FRDROPEN: Frame drop enable. Set 1 to enable drop frame function.
FRDROP:
Drop frame number:
Output Frame Rate = (1-1/FRDROP)*Frame_Rate when FRDROP>0.
NTSC mode Frame_Rate = 30 frame/sec
PAL mode Frame_Rate = 25 frame/sec
Ex. FREROPEN=1, FRDROP=2, NTSC mode;
Output Frame Rate = (1-1/2)*30 frame/sec = 15 frame/sec
Address= 8’h3F
OUT BUFFER
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h1a
OBFTH
OBFTH: CCIR656 output buffer ready threshold.
Once CCIR656 output buffer count is larger than
OBFTH, starts output CCIR656 active region.
PS. CCIR656 output buffer max length is 48, set OBFTH around middle level of
buffer length.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h40
CCIROUT TYP EN
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
PIX420E
N
PIX411E
N
FLDCHI
DEN
EAVCHI
DEN
SWCHID
EN
CROPE
N
SWCHIDEN: Valid when REG00[5]=1(FASTSWEN). Add SW channel ID in first 4 data
of active line, valid at fast switch mode. (field/frame)
EAVCHIDEN: Valid when REG00[5]=1(FASTSWEN) Add channel ID in EAV[3:0] and
SAV[3:0], valid at fasts witch mode. (field/frame)
FLDCHIDEN: Valid when REG00[6:5]=2’h3 (IFLDFASTSW, FASTSWEN),
CVBS source A to field 0, output CVBS source B to field 1.
output
CROPEN: Video cropping function enable.
PIX411EN: PIXOUT 411 mode enable. Set 1, the PIXOUT set to be YCbCr 4:1:1
The output format as below:
CbYCrYYYCbYCrYYY…
PIX420EN: PIXOUT 420 mode enable. Set 1, the PIXOUT set to be YCbCr 4:2:0
The output format as below:
Odd line: CbYYCbYY…
Even line: YCrYYCrY…
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h41
Cropping Register
7-bit
6-bit
5-bit
4-bit
2’h0
2’h3
H_STR[9:8]
H_ACT[9:8]
3-bit
2-bit
1-bit
2’h0
0-bit
2’h0
H_STR[9:8]: It defined the number of pixels start after SAV.
H_ACT[9:8]: It defined the number of active region.
H_STR + H_ACT < total number of pixels per line.
Address= 8’h42
Cropping Register
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
2-bit
1-bit
0-bit
8’h0
H_STR[7:0]
Address= 8’h43
Cropping Register
7-bit
6-bit
5-bit
4-bit
3-bit
8’hC0
H_ACT[7:0]
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
50
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h46
Cb/Cr Slicer
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
1
3’h2
SLICER
_EN
SLICER_RANGE
0-bit
SLICER_EN: CB/CR coring function enable.
SLICER_RANGE: Coring range (0 ~7). When 128 – SLICER_RANGE < (CB/CR) <
128+SLICER_RANGE, force the Chroma value to 128.
Address= 8’h4A
BT.601 Configuration
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
HSYNC_
INV
VSYNC_
INV
FID_INV
HSYNC_
EAV_
STR
VSYNC_
ODD_
STR
HSYNCWIDTH
HSYNC_INV: Inverses output of BT.601 HSYNC signal.
VSYNC_INV: Inverses output of BT.601 VSYNC signal.
FID_INV:
Inverses output of FID signal. (output pin is MPOUT, see REG2A[3:2])
HSYNC_EAV_STR:
BT. 601 HSYNC option, please refer capture of Synchronization Signals.
VSYNC_ODD_STR:
BT. 601 VSYCN option, please refer capture of Synchronization Signals.
HSYNCWIDTH:
Software programmed the value of HSYNC valid length, this register only works
when HSYNC_EAV_STR set 0.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
51
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h4B
BLANK1TIP
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h93
BLANK1TIP
BLANK1TIP: valid when REG17[7]. Line Blanking sample position.
BLANK TIP
HSYNC_LEVEL
SYNC TIP
01
27 or 36MHz
sampling
Blanking sample
position
Address= 8’h4C
HSYNCLOWCYC
7-bit
6-bit
0
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
7’d20
HSYNCLOWCYC
HSYNCLOWCYC: When low level (signal smaller than HSYNC LEVEL) signal exists
over HSYNCLOWCYC, it’s considered as a HSYNC signal
Candidate.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
52
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h4D
LMARG27
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
1-bit
0-bit
8’h50
LMARG27
LMARG27: Sync signal detect margin after video detect.
Address= 8’h4E
MARG27
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
8’h50
MARG27
MARG27: Sync signal detect margin before video detect.
Address= 8’h50
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
HSYNC_
INV
VSYNC_
INV
INTREQ
_INV
MPOUT
_INV
HSYNC_
CSR_OE
VSYNC_
CSR_OE
INTREQ
_CSR_O
E
MPOUT
_CSR_O
E
MPOUT_CSR_OE:
MPOUT output enable.
INTREQ_CSR_OE:
INTREQ output enable
VSYNC_CSR_OE:
VSYNC output enable
HSYNC_CSR_OE:
HSYNC output enable
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
MPOUT_INV:
MPOUT output inverse
INTREQ_INV:
INTREQ output inverse
VSYNC_INV:
VSYNC output inverse
HSYNC_INV:
HSYNC output inverse
Address= 8’h51
RSTZ
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SHRSTZ
TRSTZ
TRSTZ: system reset
SHRSTZ: SW hardware reset
Address= 8’h52
VD POWER DOWN
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
HWPDN
POR
HWPDE
N
PLLPW
RDNOP
T
SW_VD
PWRDN
IODIS
SW_VDPWRDN: SW Power down video decoder. (When 1, power down)
PLLPWRDNOPT: PLL Power down option.
HWPDEN: HW Power down video decoder.
HWPDNPOR: Only valid when HWPDEN=1. When 1, PIN PDN=1 is power down. When
0, PIN PDN=0 is power down
IODIS: when 1 in normal function, all pin set to be input pin
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h54
VADC CONFIG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
4’ha
0
0
1
0
Bias
B_Svide
oC
SWGAIN
_EN
pd_B
pd_A
pd_A: power down VADC channel A
pd_B: power down VADC channel B
B_SvideoC: when channel B input signal is S-video C, B_SvideoC set 1
SWGAIN_EN: software gain enable.
Bias: video ADC bias config
Address= 8’h55
VADC CONFIG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SW_GAINA1
SW_GAINA0
SW_GAINA0: Set SWGAIN_EN=1, software set VADC channel A0 gain.
SW_GAINA1: Set SWGAIN_EN=1, software set VADC channel A1 gain.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h56
VADC CONFIG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SW_GAINB
SW_GAINB: Set SWGAIN_EN=1, software set VADC channel B gain.
Address= 8’h57
VADC CONFIG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
ClmpA1
ClmpA0
ClmpA0: VADC A0 channel clamp.
ClmpA1: VADC A1 channel clamp.
Address= 8’h58
VADC CONFIG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
ClmpB
ClmpB: VADC B channel clamp.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h59
VADC CONFIG
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
LPF_BY
P
lpf_sel
sel_A
sel_A: select CHA0 or CHA1 (Default A0)
LPF_BYP: Bypass Video ADC LPF when 1.
lpf_sel: The bandwidth of the low pass filter is 10MHz when 1, 6.5MHz when 0
Address= 8’h5A
TEST MODE
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
2’h0
SW_PLL
BYPASS
EN
SW_VA
DCBYP
ASSEN
SW_PLL
_MBIST
TST
SW_VA
DCTST
VADCTST_SEL
SW_PLL_MBISTTST: Set 1, drive PLL&MBIST detail signal to chip IO pins.
SW_PLLBAPSSEN: Set 1, bypass internal pll out source.
VADCTST_SEL: valid for VADCTSTEN and VADCBYPEN.
in VADCTSTEN case:
2’b0: Dout = DoutA,
2’b1: Dout = DoutB
2’b2: Dout = when clk27 high DoutA, clk27 low DoutB
SW_VADCTST: Set 1, drive VADCSEL indicated ADC outputs to chip IO pins.
SW_VADCBYPASSEN: Set 1, bypass ADC data in from I/O pins.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
57
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h5B
MBIST CONTROL
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
MBDON
E
MBERR
_1
MBERR
_0
BISTGO
BISTGO: Set 1 to start MBIST logic. HW auto clear this bit after MBIST done.
MBDONE: Set by HW, set 1 to clear.
MBEER_0: when read back 1, sram broken, Set by HW, set 1 to clear.
MBEER_1: when read back 1, sram broken, Set by HW, set 1 to clear.
Address= 8’h5D
CONFIG
7-bit
6-bit
0
5-bit
4-bit
3-bit
2-bit
1-bit
3’h0
0
3’h0
DYMUX_VCLK
OPCLK_
INV
DLYMUX_PCLK
0-bit
DLYMUX_PCLK: Selected PCLK delay time. (3’h0 is smallest, 3’h7 is longest )
OPCLK_INV: Set 1 to inverse PCLK output.
DLYMUX_VCLK: Selected pll_54 delay time to vadc.
(3’h0 is smallest, 3’h7 is longest )
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
58
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h5F
REVISION_ID
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
8’h3B
REVISION_ID
REVISION_ID: RO, The DM5900 CHIP version ID.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
59
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
PLL
Formula:
CLK_OUT = XIN * (M+2)/[(N+2)*OD*2]
Where CLK_OUT: PLL output frequency
XIN: PLL input frequency.
M: The numerator of PLL formula.
[N, OD]: The denominator of PLL formula.
Attention:
1. 100MHz <= CLK_OUT * OD <= 250MHz
2. 1MHz <= XIN/(N+2)<=25MHz
3. OD >=1
Truth Table:
PD
BP
0
0
0
CLK_OUT
0
0
0
XIN
Don’t Care
1
0
XIN
1
0
Don’t Care Don’t Care
OE CLK_OUT
Other
Undefined
PD: Power down control; Active high.
BP: Bypass XIN to CLK_OUT; Active high.
OE: CLK_OUT enable pin, Active low.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
60
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h60
SW PLL Control
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SWPLL
RST
SWPLL1
SWPLL1: set PLL1 input configuration from SWPLL1_XX set, otherwise hard wired with
chip default vale.
SWPLLRST: set 1, chip will enter a reset mode waiting for PLL stable in 1ms. After that,
SW needs to re-program all register setting except PLL configuration.
Address= 8’h61
SW PLL Config
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
SWPLL1
_OE
SWPLL1
_PD
SWPLL1
_BP
SWPLL1_OD
SWPLL1_BP: PLL1_BP SW program source.
SWPLL1_PD: PLL1_PD SW program source.
SWPLL1_OE: PLL1_OE SW program source.
SWPLL1_OD: PLL1_OD SW program source
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
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DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Address= 8’h62
SWPLL1 M
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
2-bit
1-bit
0-bit
8’h0
SWPLL1_M[7:0]
SWPLL1_M: PLL1_M SW program source.
Address= 8’h63
SWPLL1_N
7-bit
6-bit
5-bit
0
0
0
4-bit
3-bit
5’h0
SWPLL1
_M[8]
SWPLL1_N
SWPLL1_N: PLL1_N SW program source
Address= 8’h6F
Fast Switch Control
7-bit
6-bit
5-bit
4-bit
3-bit
2-bit
1-bit
0-bit
0
0
0
0
0
0
0
0
OFSWO
PT
OFSWS
EL
OFSWOPT: When 1 and REG04[3]=1, Fast switch select signal is OFSWSEL
(REG6F[0]). Otherwise, the fast switch select signal is PIN MPOUT(FID).
OFSWSEL: Fast switch selet signal. Only valid when OFSWOPT = 1.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
62
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Electrical Specifications
Absolute Maximum Ratings Over Operating Free-Air
Temperature Range
Supply voltage range
IOVDD to DGND
-0.5V to 4.6V
DVDD to DGND
-0.5V to 2.5V
PLL_AVDD to PLL_AGND
-0.5V to 2.5V
CH1_AVDD to CH1_AGND
-0.5V to 2.5V
Digital input voltage range,
Vl to DGND
Input voltage range, XTAL1
to PLL_GND
Analog input voltage range
Al to CH1_AGND
Digital Output voltage
range, VO to DGND
Operating free-air
temperature, TA
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
-0.5V to 4.6V
-0.5V to 2.5V
-0.2V to 2.0V
-0.5V to 4.6V
-65C to 150C
63
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Recommended Operating Conditions
IODVDD
DVDD
PLL_AVDD
VIH
VIL
VIH_XTAL
Digital I/O supply voltage
Digital supply voltage
Analog PLL supply
voltage
Analog core supply
voltage
Analog input voltage (accoupling necessary)
Digital input voltage high
Digital input voltage low
XTAL input voltage high
VIL_XTAL
XTAL input voltage low
IOH
IOL
IOH_SCLK
High-level output current
Low-level output current
SCLK high-level output
current
SCLK low-level output
current
Operating free-air
temperature
CH1_AVDD
VI(P-P)
IOL_SCLK
TA
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
MIN
2.97
1.62
TYP
3.3
1.8
MAX
3.63
1.98
UNIT
V
V
1.62
1.8
1.98
V
1.7
1.8
1.9
V
0.25
1.0
V
2
-0.3
0.7
PLL_AVDD
5
0.8
V
V
-40
V
0.3
PLL_AVDD
2
-2
mA
mA
4
mA
-4
mA
85
V
o
C
64
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Crystal Specifications
CRYSTAL
SPECIFICATIONS
Frequency
Frequency tolerance
MIN
NOM
MAX
UNIT
27.0
100
MHz
ppm
Electrical Characteristics
DVDD = 1.8 V, PLL_AVDD = 1.8 V, CH1_AVDD = 1.8 V, IOVDD = 3.3 V
For minimum/maximum values: TA = -40C to 85C, and for typical values: TA = 25C
unless otherwise noted
DC Electrical Characteristics
PARAMETER
TEST
CONDITIONS
(see NOTE 1)
MIN
TYP
MAX
UNIT
IDD(IO_D) Digital I/O supply current
IDD(D)
Digital core supply
current
IDD(A)
Analog supply current
PTOT
Total power dissipation,
normal mode
PDOWN Total power dissipation,
power-down mode
Ci
Input capacitance
VOH
Output voltage high
Color bar input
Color bar input
20.1
mA
75.4
mA
Color bar input
Color bar input
39.5
mA
VOL
IOL = -2 mA
Output voltage low
Color bar input
By design
IOH = 2 mA
VOH_SCLK SCLK output voltage
IOH = 4 mA
high
VOL_SCLK SCLK output voltage low IOL = -2 mA
IIH
High-level input current
VI = VIH
IIL
Low-level input current
VI = VIL
NOTE 1: Measured with a load of 15 pf.
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
273
288
mW
17.8
mW
8
pF
0.8
IOVDD
V
0.22
IOVDD
2.3
V
V
0.6
50
50
V
A
A
65
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Analog Processing and A/D Converters
TEST
CONDITIONS
PARAMETER
MIN
TYP
MAX
Zi
Input impedance, analog
By design
500
video inputs
Ci
Input capacitance, analog
By design
10
video inputs
Vi(pp)
Input voltage range *
0.25
1
Ccoupling = 0.1 F
12
G
Gain control range
DNL
DC differential non-linearity
A/D only
2
INL
DC integral non-linearity
A/D only
3
Fr
Frequency response
6 MHz
-0.9
-3
SNR
Signal-to-noise ratio
6 MHz, 1.0 Vp-p
50
NS
Noise spectrum
50% flat field
50
DP
Differential phase
1.5
DG
Differential gain
0.5%
* The 0.75-V maximum applies to the sync-chroma amplitude, not sync-white. The
recommended termination resistors are 37.4 .
UNIT
k
pF
V
dB
LSB
LSB
dB
dB
dB

Timing
Power-On reset Timing
PLL_AVDD
DVDD
IO_DVDD
t1
RESETB
Normal Operation
Reset
t2
PDN
t3
Data
SDA
SCL
NO.
t1
t2
t3
PARAMETER
Delay time between power supplies active and reset
RESETB pulse duration
2
Delay time between end of reset to I C active
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
MIN
20
500
500
MAX
-
UNIT
ms
ns
ns
66
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Clocks, Video Data, Sync timing
Data Format : CCIR656 output
PARAMETER
PIXCLK High pulse duration
PIXCLK Low pulse duration
CCIR656 data out setup time
CCIR656 data out hold time
SYMBOL
thw
tlw
tsu
th
MIN
18.5
18.5
18.5
18.5
TYP
MAX
UNIT
ns
ns
ns
ns
Output:CCIR656
PIXCLK
(27MHz)
CCIR656
(27MHz)
thw
tlw
FF
00
tsu
th
00
XY
Cb0
Y0
Cr0
Figure 3-2 . Clocks, CCIR656 Output Data Timing
Preliminary
Doc No: DM5900-DS-P01
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67
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
I2C Host Port Timing
PARAMETER
TEST CONDITIONS
MIN
t1
Bus free time between STOP
and START
t2
Setup time for a (repeated)
START condition
t3
Hold time (repeated) START
condition
t4
Setup time for STOP condition
t5
Data setup time
t6
Data hold time
t7
Rise time I2CD and I2CLK
signal
t8
Fall time I2CD and I2CLK signal
Cb
Capacitive load for each bus
line
fI2C
I2C clock frequency
STOP
TYP
MAX UNIT
1.3
s
0.6
s
0.6
s
0.6
200
0
s
ns
ns
50
250
ns
250
START
START
ns
120
pF
400
kHz
STOP
SI2CD
t1
t5
t6
t7
t8
t2
t3
t4
SI2CLK
Write Address
B8
BA
SIAD = 0
SIAD = 1
SI2CLK
1
2
8
9
1
2
8
9
Read Address
B9
BB
1
2
8
9
SI2CD
START
SI2CLK
1
WRITE ADDRESS
2
8
9
1
ACK
2
REG ADDRESS
8
9
ACK
1
2
DATA
8
9
ACK
1
2
STOP
8
9
SI2CD
START
WRITE ADDRESS
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
ACK
REG ADDRESS
ACK STOP START
READ ADDRESS
ACK
DATA
NOACK STOP
68
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Packaging
(1) 32 PIN LQFP
Preliminary
Doc No: DM5900-DS-P01
August 19, 2015
69
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
(2) 32 PIN QFN
Unit: Inches/mm
Preliminary
Doc No: DM5900-DS-P01
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70
DM5900
720H 1 Channel NTSC/PAL Decoder with fast switch function
Ordering Information
Part Number
Pin Count
DM5900EP
32
DM5900NP
32
Package
LQFP
(Pb-Free and
Halogen-Free)
QFN
(Pb-Free and
Halogen-Free)
Disclaimer
The information appearing in this publication is
believed to be accurate. Integrated circuits sold by
DAVICOM Semiconductor are covered by the
warranty and patent indemnification provisions
stipulated in the terms of sale only. DAVICOM makes
no warranty, express, statutory, implied or by
description regarding the information in this
publication or regarding the information in this
publication or regarding the freedom of the described
chip(s) from patent infringement.
FURTHER,
DAVICOM
MAKES
NO
WARRANTY
OF
MERCHANTABILITY OR FITNESS FOR ANY
PURPOSE. DAVICOM reserves the right to halt
production or alter the specifications and prices at
any time without notice. Accordingly, the reader is
cautioned to verify that the data sheets and other
information in this publication are current before
placing orders. Products described herein are
intended for use in normal commercial applications.
Applications involving unusual environmental or
reliability requirements, e.g. military equipment or
medical life support equipment, are specifically not
recommended without additional processing by
DAVICOM for such applications. Please note that
application circuits illustrated in this document are for
reference purposes only.
DAVICOM’s terms and conditions printed on the
order acknowledgment govern all sales by DAVICOM.
DAVICOM will not be bound by any terms
inconsistent with these unless DAVICOM agrees
otherwise in writing. Acceptance of the buyer’s orders
shall be based on these terms.
Company Overview
DAVICOM Semiconductor Inc. develops and
manufactures integrated circuits for integration into
data communication products. Our mission is to
design and produce IC products that are the
industry’s best value for Data, Audio, Video, and
Internet/Intranet applications. To achieve this goal,
we have built an organization that is able to develop
chipsets in response to the evolving technology
requirements of our customers while still delivering
products that meet their cost requirements.
Products
We offer only products that satisfy high performance
requirements and which are compatible with major
hardware and software standards. Our currently
available and soon to be released products are based
on our proprietary designs and deliver high quality,
high performance chipsets that comply with modem
communication standards and Ethernet networking
standards.
Contact Windows
For additional information about DAVICOM products, contact the Sales department at:
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Hsin-chu Office:
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MAIL: sales@davicom.com.tw
HTTP: http://www.davicom.com.tw
WARNING
Conditions beyond those listed for the absolute maximum may destroy or damage the products. In addition, conditions for sustained periods at near the
limits of the operating ranges will stress and may temporarily (and permanently) affect and damage structure, performance and function.
Preliminary
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