TDK AVPRO5003-CG Triple scart a/v switch Datasheet

AVPro® 5003
Triple SCART A/V Switch
August 2000
FEATURES
DESCRIPTION
ABLANK
EBLANK
AUX_R
Enc_R
Enc_C
SVHS_Cin
AUX_G
Enc_G
Enc_B
AUX_B
AUX_Fnc
VCR_Fnc
AUX_YCin
VCR_YCin
SCLK
• Integrated video drivers
• Integrated audio drivers
- Negative supply eliminates AC coupling
caps
• 5-bit audio attenuation for TV output
- Attenuation from 0 to 31 dB, 1 dB steps
- Mute of TV outputs
• Serial port control of SCART switching
• 64-lead MQFP packaging (JEDEC MO-108)
TV_C
Comparitor
Mux
TV_R
Mux
TV_G
Mux
TV_B
Mux
SVHS_Cout
Mux
AUX_YCout
Mux
TV_YCout
TV_Mod
Mux
Serial
Port
AUX_Lin
Timing
Generator
Rbias
Lin
TV Fn
Output
TV_Fnc
Digital
Output
DO_0
DO_1
VCR_Rout
Lout
VCR_Lin
VCR_Rin
Vref
VCR_YCout
VCR_Lout
Mux
AUX_Rin
Tgen
BLANK
Mux
Enc_YC
Enc_Y
SDATA
• SCART connections for TV, VCR, AUX
VDD
VEE
VEE
VEE
VEE
VCC
VCC
VCC
VCC
BLOCK DIAGRAM
VCC
The AVPro® 5003 is a low cost IC that performs
switching of analog audio and video signals. The
device accepts analog audio and video inputs from
three external sources, typically a video encoder
IC/stereo DAC, an auxiliary SCART connector, and
a VCR SCART connector. The input signals from
these sources are presented to a set of internal
multiplexers that perform the SCART switching
function. Outputs are provided to the VCR and
auxiliary SCART connectors, as well as a TV
SCART connector and an RF modulator. Video
outputs are buffered to drive 150 Ω loads. Audio
outputs are buffered to provide 2 Vrms output into
600 ohms. Typical applications for the 5003 include
digital video recorders (DVRs) and digital receivers
for satellite, cable, and terrestrial television.
Mux
Vref and
Bias
TV_Lout
Mono
TV_Rout
Rout
Mux
GND
GND
GND
GND
Rin
AUX_Lout
AUX_Rout
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AVPro 5003
Triple SCART A/V Switch
bits in the serial port register determine which of the
composite input signals will be switched to the
TV_YCout output pin. When bits of Register 1 are
set to xxxx00xx, the signal on AUX_YCin is used as
the input. When the bits are set to xxxx01xx, the
signal on Enc_YC is used as the input. When the
bits are set to xxxx10xx, the signal on VCR_YCin is
used as the input. The TV_YCout pin can be active
with a composite video signal when RGB inputs are
active. When the TV SVHS mode is selected the
composite video mode is not available and the
TV_YCout pin provides luminance information to the
TV SCART connector. The DC restore circuit acts to
position the blank level to 0.6 V at the output 75 ohm
load.
FUNCTIONAL DESCRIPTION
SCART Video Switching
The device is designed to accept video signals from
several SCART video resources.
The device
includes an analog multiplexer that receives the
external video signals and allows routing of the
signals to the various video outputs on the device.
Writing bits to serial port Register 1 controls
switching.
RGB Outputs: The device accepts RGB video
signals from two sources. The AUX_R, AUX_G,
AUX_B input pins are typically connected to the
auxiliary SCART connector. The Enc_R, Enc_G,
Enc_B input pins are connected to the RGB outputs
of an external video encoder device. The lower two
bits of serial port Register 1 determine which RGB
input port will be used as the source for the TV_R,
TV_G, TV_B output pins. When these bits are set to
xxxxxx00, the auxiliary SCART is used as the input.
When these bits are set to xxxxxx01, the video
encoder is used as the input.
RF Modulator Outputs: The device has a TV_Mod
output that follows the TV_YCout signal. When the
TV SCART has composite video, TV_Mod can be fed
directly to the RF modulator. When the TV is in
SVHS mode, the TV_Mod output (luminance) can be
summed with the TV_C output (chroma) to provide a
composite signal for the RF modulator. When the TV
SCART has composite available, the TV_C output
can be disabled via the MSB of serial port Register 1.
The RGB sync can be selected from either the RGB
signals or the output on TV_YCout, as set by the
MSB of serial port Register 0. Setting this bit selects
the timing signal for the DC restore circuit. The DC
restore circuit acts to position the blank level to 0.6 V
at the output video load. When the bit is high, the
timing signal is from the output on TV_YCout from
either the AUX_YCin or Enc_YC. When the bit is
low, the timing signal will detect sync on either of the
RGB signals. The associated blanking signal from
respective video sources is also switched
accordingly with a delay matched to that of the RGB
signals.
Auxiliary Composite Output: The VCR and video
encoder composite video sources are available to
switch to the AUX_YCout output pin. This pin is
typically connected to the Video Out pin on the
auxiliary SCART connector. A bit in serial port
Register 1 determines the signal source for the
AUX_YCout output pin. Setting the register to
x0xxxxxx selects the signal on VCR_YCin, while
setting the register to x1xxxxxx selects the signal on
ENC_YC. The DC restore circuit acts to position the
blank level to 0.5 V at the output pin.
VCR Composite Output: The auxiliary SCART and
video encoder composite video sources are available
to switch to the VCR_YCout output pin. This pin is
typically connected to the Video Out pin on the VCR
SCART connector. Two bits in serial port Register 1
determine the source for the AUX_YCout output pin.
Setting the register to xx01xxxx selects the signal on
AUX_YCin, while setting the register to xx10xxxx
selects the signal on ENC_YC.
When the SVHS mode is active, the TV_R pin
receives a chroma signal from either Enc_C or
SVHS_Cin. The DC restore averages to
approximately 1.8 VDC at the output pin. The
TV_G, TV_B outputs are also disabled (~0 V) in this
mode.
TV Composite Output: The device accepts up to
three composite (YC) video sources.
The
AUX_YCin input pin is typically connected to the
Video In pin on the auxiliary SCART connector. The
VCR_YCin input pin is typically connected to the
Video In pin from the VCR SCART connector. The
Enc_YC input pin is typically connected to the YC
output from the external video encoder device. Two
SVHS Switching: The device supports the SVHS
mode from the VCR SCART connector. The
SVHS_Cin pin provides chroma information from the
VCR SCART connector to the TV SCART connector.
The SVHS_Cout pin provides chroma information
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AVPro 5003
Triple SCART A/V Switch
receiver/amplifier. These outputs are also combined
for a Mono output to a RF modulator.
from the encoder IC to the VCR SCART connector.
The encoder chroma output can also be routed to
the TV_R pin to support SVHS applications. When
Register 1 is set to xxxx1011, the SVHS mode is
selected with SVHS_Cin and VCR_YCin providing
the chroma and luma inputs, respectively. In this
mode, the load for the VCR chroma source (SCART
pin 15) is provided by the series resistor for the
SVHS_Cout pin and the low output impedance of
the amplifier. The SVHS_Cin is ac coupled, and its
dc bias set to approximately 0.9V. When the bits are
set to xxxx1110, the ENC_C and ENC_Y inputs
provide the chroma and luma inputs, respectively.
The audio inputs are considered to be associated
with the respective composite video input. As a
result, the video selection determines which audio
signals will be switched to a given SCART output.
Refer to the SCART Video Switching section of this
document for more information.
Volume Control: The device provides control of the
output
level
on
the
TV
audio
outputs
(TV_Lout/Rout).
The output level is controlled
through serial port write Register 2. The lower 6-bits
of this register set an attenuation level from 0 to -63
dB in 1 dB steps, where xx000000 is 0 dB and
xx111111 is -63 dB. However, the attenuation is
only specified to 5-bits of accuracy (-31 dB).The
mute function is controlled by the fifth bit of write
Register 0, which allows these outputs to be muted
to -75 dB. When this bit is set to 0, the attenuator is
active. When it is set to 1, the outputs are muted to
-75 dB. This bit can be set independent of the
attenuation register such that the output can be
muted before any change in volume, or any
switching of audio sources. The audio control
circuits have a zero crossing detector that allows
volume control changes to be completed only when
the audio signal is near a zero crossing. This
prevents audible popping and clicking during a
volume change.
The VCR SCART can also receive SVHS
information from the video encoder by setting the
register bits to xx00xxxx. Note that when the VCR is
receiving information it cannot be used as a signal
source for other devices.
Function Switch: The device monitors the function
switch pin (pin 8) of the auxiliary SCART and VCR
SCART connectors, AUX_Fnc and VCR_Fnc pins,
respectively. It is also known as slow blanking.
Each of these inputs can detect three distinct levels
and set two bits in serial port read Register 0.
When the SCART input level is 0 to 2 V, the register
bits are set to 00. When the input level is 4.5 to 7.0
V, the register bits are set to 01. When the input
level is 9.5 to 12 V, the register bits are set to 10.
The device also provides a function switching output
(TV_Fnc) to the TV SCART connector (pin 8). The
output level is determined by the state of two LSBs
in serial port write Register 0. The table below
defines the state of the TV_Fnc pin based on the
register bit values.
Bits
xxxxxx00
xxxxxx01
xxxxxx10
xxxxxx11
Output
voltage
~0 V
~6 V
~ 11 V
~ 11 V
Hot-plug of SCART connectors. The 5003 devices
are sensitive to discharge caused by floating chassis
grounds between audio/video equipment. This is
observed when the SCART cables are repeatedly
connected and disconnected while the 5003 is
powered on inside the IRD. When the SCART cable
is unplugged, an AC potential can exist between
equipments. When the SCART cable is plugged
back into the IRD, the AC potential discharges
through the SCART connector. If the discharge
occurs through the shield of the SCART connector
or the ground pins, there is no problem. If the
discharge occurs through the signal pins, the 5003
devices can experience a latch-up condition and a
high current situation will exist. The latch-up will
occur if the pulse created by the discharge has a
fast rising edge, typically a few hundred picoseconds. This is an order of magnitude faster than a
standard ESD pulse so the internal ESD diodes of
the 5003 will not respond fast enough to protect the
device. This problem can be resolved by placing a
Function
Normal TV
16:9 aspect
Peritelevision
Peritelevision
SCART Audio switching
The device is designed to accept stereo audio inputs
from an external audio DAC and from auxiliary
SCART and VCR SCART connectors. The device
provides audio outputs to the TV SCART, auxiliary
SCART, and VCR SCART connectors. It also
provides fixed gain, stereo line outputs of the audio
output on the TV SCART. The line outputs are
intended for use by an external stereo
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AVPro 5003
Triple SCART A/V Switch
drive the SDATA pin low and hold it LOW until the
next falling edge of the SCLK pin to acknowledge
the address transfer. Once a valid address is
detected the device will continue to transmit or
receive data until the process is complete, or the bus
master issues a stop.
small shunt capacitor on each SCART I/O pin. The
capacitor slows the rising edge of the discharge
pulse and allows the internal ESD diodes to react to
the discharge. Good results are achieved using a
470 pF value, but an exact value should be
calculated for each signal line depending upon the
signal type so as to avoid roll-off of the intended
signal. As an alternate approach, external diodes
can be used to shunt this discharge.
Reset: At power-up the serial port defaults to the
states indicated in boldface type. At device powerup, the device also generates an acknowledge. The
device also responds to the system level reset that
is transmitted through the serial port. When the
master sends the address 00000000 followed by the
data 00000110, the device resets to the default
condition, and generates and acknowledge.
Digital Outputs
The device includes programmable digital outputs
(DO_0, and DO_1). These pins are general purpose
outputs programmed by bits in serial port Register 0.
Bit 3 of this register controls DO_0 while bit 4
controls DO_1. Setting the register bits to 0 puts
these outputs in the LOW state. Setting the register
bits to 1 puts the outputs in the HIGH state. Internal
pull-ups are incorporated.
I2C Latch-up. The 5003 may latch-up if the I2C bus
is active and there is no power to the 5003 device. In
a typical application, this will not occur as the I2C
bus and the 5003 device are powered from the
same power supply. This condition typically occurs
when evaluating the 5003 devices on a demo board.
When the I2C is powered on and the 5003 device is
powered off, the I/O lines of the I2C bus are active
and therefore will be at +5V. The SDATA pin internal
ESD diodes will begin to conduct current through the
SDATA pin and attempt to power-on internal circuits
of the device. When power is applied to the 5003
device, circuits can be in an unknown state and
therefore latch-up occurs. This is prevented by
disconnecting the I2C interface when the device is
powered down.
Serial Port Definition
Internal functions of the device are monitored and
controlled by a simple two-wire serial port that is
compatible with the inter-IC (I2C) bus. The serial port
operates in a slave mode only and can be written to
or read from. The default address of the device is
1001000x. The serial port uses a clock input (SCLK)
that is driven by the bus master and a bi-directional
data input (SDATA) to perform all data transfers.
Data Transfers: The device is enabled for a data
transfer when the SDATA pin is driven from HIGH to
LOW by the bus master while the SCLK pin is HIGH.
The data transfer is complete when the bus master
drives the SDATA pin from LOW to HIGH while the
SCLK pin is HIGH.
Start
Power Supply Sequence: The 5003 require three
power supplies ( 12V, 5V and –5V ) for proper
operation. Similar to other CMOS devices that are
powered from multiple supplies, the 5003 family
device requires proper power ramp-up sequence to
avoid forwardly biasing the substrate diodes which
can cause destructive latch-up. In order to insure
that the chip substrate diodes are always reverse
biased, the –5V supply should always be applied
before the other two supplies. The preferred power
ramp-up sequences is “–5V, +12V and then +5V.”
If this sequence can not be achieved, placing
schottky diodes from –5V to ground and / or +12V to
+5V supply, depending upon sequence and timing,
can prevent latchup.
Stop
SCLK
SDATA
The first eight bits of data clocked into the device are
decoded to determine if a valid address has been
received. The first seven bits of information are the
address with the eighth bit indicating whether the
cycle is a read (bit is HIGH) or a write (bit is LOW). If
the address is valid for this device, on the falling
SCLK edge of the eighth bit of data, the device will
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AVPro 5003
Triple SCART A/V Switch
Serial Port Register Table (Write registers); Device Address = 10010000 (Bold indicates default setting)
REGISTER
0
FUNCTION
TV Function Control
BITS
DESCRIPTION
xxxxxx00
Level 0; normal TV output (TV_Fnc = 0V)
xxxxxx01
xxxxxx10
xxxxxx11
Level 1A; 16:9 aspect ratio (TV_Fnc = 6V)
Level 1B; Peritelevision output mode (TV_Fnc =11V)
Level 1B; not valid mode (TV_Fnc =11V)
0
Digital Outputs
(independent)
xxxx00xx
DO_0, DO_1 are set LOW
xxxx11xx
DO_0, DO_1 are set HIGH
0
TV Mute Control*
xxx0xxxx
TV audio (TV_Lout/TV_Rout, Lout/Rout/Mono) output = ON
xxx1xxxx
TV audio (TV_Lout/TV_Rout, Lout/Rout/Mono) output = Mute
0
n/a
x00xxxxx
Reserved: Set these bits to “0” for normal operation
0
RGB Sync Source
0xxxxxxx
1xxxxxxx
RGB sync /DC restore source = RGB
RGB sync /DC restore source = TV_YC
xxxxxx00
xxxxxx01
TV RGB signal source = Auxiliary SCART input (RGB )
TV RGB signal source = Video encoder IC,
TV_B outputs are
disabled.)
xxxxxx10
xxxxxx11
TV RGB signal source = Video encoder IC, chroma on TV red
TV RGB signal source = VCR SCART (red) chroma on TV red
TV composite video /
Audio Source
xxxx00xx
xxxx01xx
TV composite & audio signal source = Video encoder IC
1
TV RGB/ S video
chroma Source
(S Video has chroma
on TV_R. TV_G &
1
TV composite & audio signal source = Auxiliary SCART input
xxxx10xx
xxxx11xx
audio DAC IC
xx00xxxx
xx01xxxx
xx10xxxx
SVHS mode, source = Video encoder IC (Y & C), audio DAC IC
VCR signal source = Auxiliary SCART composite input
VCR signal source = Video encoder IC (YC), audio DAC IC
xx11xxxx
VCR signal source = Video encoder IC (YC), audio DAC IC
TV composite & audio signal source = VCR SCART input
TV composite (S video luma ) & audio signal source =
Video encoder IC (Enc_Y), audio DAC IC
1
VCR Signal Source
1
Auxiliary Output Select
x0xxxxxx
x1xxxxxx
Auxiliary signal source = VCR SCART input
Auxiliary signal source = Video encoder IC, audio DAC IC
1
TV Chroma RF output
0xxxxxxx
TV_C (chroma RF) output: output disabled
1xxxxxxx
TV_C (chroma) output: = TV_R (for RF mod to sum Y & C)
2
TV Volume Control*
xx000000
TV audio volume = normal (0 dB)
xx011111
TV audio volume = minimum (31 dB atten.)
2
n/a
00xxxxxx
Serial Port Register Table (Read register); Device Address = 10010001 (Bold indicates default setting)
0
0
0
AUX Function Control
Input
xxxxxx00
Level 0; normal TV output (TV_Fnc = 0 volts)
xxxxxx01
xxxxxx10
Level 1A; 16:9 aspect ratio (TV_Fnc = 6 volts)
Level 1B; Peritelevision output mode (TV_Fnc = 11 volts)
VCR Function Control
Input
xxxx00xx
Level 0; normal TV output (TV_Fnc = 0 volts)
xxxx01xx
xxxx10xx
Level 1A; 16:9 aspect ratio (TV_Fnc= 6 volts)
Level 1B; Peritelevision output mode (TV_Fnc = 11 volts)
n/a
0000xxxx
Reserved: These bits set to “0” in normal operation
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AVPro 5003
Triple SCART A/V Switch
SCART Switching Table
INPUT PIN
AUX_R: Red input from AUX SCART
Enc_R: Red input from video encoder IC
Enc_C: Chroma input from video encoder IC
SVHS_Cin: Chroma input from VCR SCART
AUX_R: Red input from AUX SCART
Enc_R: Red input from video encoder IC
Enc_C: Chroma input from video encoder IC
SVHS_Cin: Chroma input from VCR SCART
AUX_G: Green input from AUX SCART
Enc_G: Green input from video encoder IC
AUX_B: Blue input from AUX SCART
Enc_B: Blue input from video encoder IC
ABLANK: Blanking input from AUX SCART
EBLANK: Blanking input from video encoder IC
AUX_YCin: Composite input from AUX SCART
Enc_YC: Composite input from video encoder IC
Enc_Y: Luma input from video encoder IC
VCR_YCin: Composite (YC or Y) input from VCR
AUX_YCin: Composite input from AUX SCART
Enc_YC: Composite input from video encoder IC
Enc_Y: Luma input from video encoder IC
VCR_YCin: Composite (YC or Y) input from VCR
AUX_YCin: Composite input from AUX SCART
Enc_YC: Composite input from video encoder IC
Enc_Y: Luma input from video encoder IC
Enc_C: Chroma input from video encoder IC
Enc_YC: Composite input from video encoder IC
VCR_YCin: Composite input from VCR SCART
AUX_Lin: Left audio input from AUX SCART
Lin: Left audio input from audio DAC
VCR_Lin: Left audio input from VCR SCART
AUX_Lin: Left audio input from AUX SCART
Lin: Left audio input from audio DAC
VCR_Lin: Left audio input from VCR SCART
Lin: Left audio input from audio DAC
VCR_Lin: Left audio input from VCR SCART
AUX_Lin: Left audio input from AUX SCART
Lin: Left audio input from audio DAC
AUX_Rin: Right audio input from AUX SCART
Rin: Right audio input from audio DAC
VCR_Rin: Right audio input from VCR SCART
AUX_Rin: Right audio input from AUX SCART
Rin: Right audio input from audio DAC
VCR_Rin: Right audio input from VCR SCART
Rin: Right audio input from audio DAC
VCR_Rin: Right audio input from VCR SCART
AUX_Rin: Right audio input from AUX SCART
Rin: Right audio input from audio DAC
OUTPUT PIN
TV_R: Red video output to TV or SVHS chroma output to TV
TV_C: Follows TV_R output. Chroma output to sum Y & C for RF
modulator when TV in S video mode, On/off selectable
TV_G: Green video output to TV
TV_B: Blue video output to TV
BLANK: TV blanking output for RGB
TV_YCout: Composite video, RGB sync, or Luma output to TV
TV_Mod: Follows TV_YCout output. Composite (or luma sum with
chroma) output to RF modulator
VCR_YCout: Composite or Luma output to VCR
SVHS_Cout: Chroma output to VCR
AUX_YCout: Composite video output to auxiliary SCART
Lout: Left audio output to RCA jack
TV_Lout: Left audio output to TV SCART
AUX_Lout: Left audio output to auxiliary SCART
VCR_Lout: Left audio output to VCR SCART
Rout: Right audio output to RCA jack
TV_Rout: Right audio output to TV SCART
AUX_Rout: Right audio output to auxiliary SCART
VCR_Rout: Right audio output to VCR SCART
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AVPro 5003
Triple SCART A/V Switch
PIN DESCRIPTIONS
NAME
TYPE
DESCRIPTION
Analog Pins:
ABLANK
I
Auxiliary Blanking Input: In a typical system, this pin is connected to the RGB
status pin (pin 16, fast blanking) from the auxiliary SCART connector.
AUX_R
I
Auxiliary Red Input: In a typical system, this pin is connected to the RED input pin
(pin 15) of the auxiliary SCART connector. This input can be selected as the
signal source for the TV_R output pin.
AUX_G
I
Auxiliary Green Input: In a typical system, this pin is connected to the GREEN
input pin (pin 11) of the auxiliary SCART connector. This input can be selected as
the signal source for the TV_G output pin.
AUX_B
I
Auxiliary Blue Input: In a typical system, this pin is connected to the BLUE input
pin (pin 7) of the auxiliary SCART connector. This input can be selected as the
signal source for the TV_B output pin.
AUX_Fnc
I
Function Switching Input, AUX: In a typical system, this pin is connected to pin 8
of the auxiliary SCART connector to monitor the function select input from that
device. This input can identify three different levels and record the level in the
serial port register.
AUX_YCin
I
Auxiliary Video Input: In a typical system, this pin is connected to the composite
video input pin (pin 20) of the auxiliary SCART connector. This input can be
selected as the signal source for the TV_YCout and/or VCR_YCout pins.
AUX_Lin
I
Auxiliary Left Audio Input: In a typical system, this pin is connected to the L Audio
Output pin (pin 3) of the auxiliary SCART connector. This input can be selected
as the signal source for the TV_Lout and/or VCR_Lout pins.
AUX_Rin
I
Auxiliary Right Audio Input: In a typical system, this pin is connected to the R
Audio Output pin (pin 1) of the auxiliary SCART connector. This input can be
selected as the signal source for the TV_Rout and/or VCR_Rout pins.
EBLANK
I
Encoder Blanking Input: In a typical system, this pin is connected to the fast
blanking signal from the external video encoder device.
Enc_R
I
Encoder Red Input: In a typical system, this pin is connected to the RED output
pin from the external video encoder device. This input can be selected as the
signal source for the TV_R output pin.
Enc_G
I
Encoder Green Input: In a typical system, this pin is connected to the GREEN
output pin from the external video encoder device. This input can be selected as
the signal source for the TV_G output pin.
Enc_B
I
Encoder Blue Input: In a typical system, this pin is connected to the BLUE output
pin from the external video encoder device. This input can be selected as the
signal source for the TV_B output pin.
Enc_YC
I
Encoder Video Input: In a typical system, this pin is connected to the composite
video output pin from the external video encoder device. This input can be
selected as the signal source for the AUX_YCout, TV_YCout and/or VCR_YCout
pins.
Enc_Y
I
Encoder Luminance Input: In a typical system, this pin is connected to the
composite video output pin from the external video encoder device when
operating S video. This input can be selected as the signal source for the
TV_YCout and/or VCR_YCout pins.
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AVPro 5003
Triple SCART A/V Switch
PIN DESCRIPTIONS (continued)
NAME
TYPE
DESCRIPTION
Enc_C
I
Encoder Chrominance Input: In a typical system, this pin is connected to the TV_R
output pin from the external video encoder device when operating S video. This input
can be selected as the signal source for the TV_R and/or VCR’s SVHS_Cout output pin.
Lin
I
Left Audio Input: In a typical system, this pin is connected to the left audio output
pin of the external audio DAC. This input can be selected as the signal source for
the TV_Lout, VCR_Lout and/or AUX_Lout pins.
Rin
I
Right Audio Input: In a typical system, this pin is connected to the right audio
output pin of the external audio DAC. This input can be selected as the signal
source for the TV_Rout, VCR_Rout and/or AUX_Rout pins.
SVHS_Cin
I
SVHS Chroma Input: In a typical system, this pin is connected to the SVHS
Chroma pin (pin 15) on the VCR SCART connector. It provides chroma input from
the VCR when the SVHS mode is selected for the TV connector.
VCR_YCin
I
VCR Video Input: In a typical system, this pin is connected to the composite video
input pin (pin 20) of the VCR SCART connector. This input can be selected as the
signal source for the TV_YCout and/or AUX_YCout pins.
VCR_Lin
I
VCR Left Audio Input: In a typical system, this pin is connected to the L Audio
Output pin (pin 3) of the VCR SCART connector. This input can be selected as
the signal source for the TV_Lout and/or AUX_Lout pins.
VCR_Rin
I
VCR Right Audio Input: In a typical system, this pin is connected to the R Audio
Output pin (pin 1) of the VCR SCART connector. This input can be selected as
the signal source for the TV_Rout and/or AUX_Rout pins.
VCR_Fnc
I
Function Switching Input, VCR: In a typical system, this pin is connected to pin 8 of
the VCR SCART connector to monitor the function select input from that device. This
input can identify three different levels and records the level in the serial port register.
AUXYCout
O
Auxiliary Video Output: This pin is the composite video output to the auxiliary
SCART connector (pin 19).
AUX_Lout
O
Auxiliary Left Audio Output: This pin is the output to the left channel audio (pin 3)
of the auxiliary SCART connector.
AUX_Rout
O
Auxiliary Right Audio Output: This pin is the output to the right channel audio
(pin1) of the auxiliary SCART connector.
BLANK
O
Blanking output: This output provides the blanking signal to the TV SCART
connector (pin 16). This signal is either the blanking signal from the auxiliary
SCART connector (ABLANK) or the signal from the external video encoder
(EBLANK).
Lout
O
Left Audio Output: This pin is the output to the left channel audio RCA jack.
Rout
O
Right Audio Output: This pin is the output to the right channel audio RCA jack.
Mono
O
Mono Audio Output: This pin is sum of Lout & Rout to the RF modulator input.
SVHS_Cout
O
SVHS Chroma Output: This pin is typically AC coupled to pin 15 of the VCR
SCART connector. When the S-video mode is selected for the VCR connector,
video from the video encoder input pin (Enc_C) is output to this pin
TV_YCout
O
TV Video Output: This pin is the composite video output to the TV SCART
connector (pin 19). In the SVHS mode, this pin provides luminance information.
8
®
AVPro 5003
Triple SCART A/V Switch
PIN DESCRIPTIONS (continued)
NAME
TYPE
DESCRIPTION
TV_Mod
O
TV Modulator Video Output: This pin follows the composite video output to the
TV_YCout signal to the TV SCART connector. It provides composite video for an
external RF modulator. In S video mode, it provides luminance information only
TV_R
O
TV Red Output: This pin provides Red video output to the TV SCART connector
(pin 15). In S video mode, this pin provides the chroma information.
TV_C
O
TV Chroma Output: This pin provides chroma signal to sum with TV_Mod’s
luminance when operating in S video mode for composite video signal for RF
modulator. It is on/off selectable.
TV_G
O
TV Green Output:
connector (pin 11).
TV_B
O
TV Blue Output: This pin provides Blue video output to the TV SCART connector
(pin 7).
TV_Lout
O
TV Left Audio Output: This pin is the output to the left channel audio (pin 3) of the
TV SCART connector.
TV_Rout
O
TV Right Audio Output: This pin is the output to the right channel audio (pin1) of
the TV SCART connector.
TV_Fnc
O
Function Output TV: This pin is the function switching output to the TV SCART
connector pin 8. The output level is determined by the serial port write register.
VCR_YCout
O
VCR Video Output: This pin is the composite video output to the VCR SCART
connector (pin 20). In the SVHS mode, this pin provides luminance information
from the video encoder IC (pin Enc_Y).
VCR_Lout
O
VCR Left Audio Output: This pin is the output to the left channel audio (pin 3) of
the VCR SCART connector.
VCR_Rout
O
VCR Right Audio Output: This pin is the output to the right channel audio (pin1) of
the VCR SCART connector.
DO_0
O
Digital Output 0: This pin is a general purpose output that is controlled by serial
port register.
DO_1
O
Digital Output 1: This pin is a general purpose output that is controlled by serial
port register.
SCLK
I
Serial Clock Input: This pin accepts a serial port clock input signal.
SDATA
I
Serial Data Input: This is a tri-state pin that receives or transmits serial data.
VCC
-
+5 VDC power inputs.
VEE
-
-5 VDC power inputs.
VDD
-
+12 VDC power input for function switching
Vref
-
Internal voltage reference, bypass pin. Add capacitor 4.7 uF to ground.
GND
-
Ground for all blocks.
Rbias
-
Bias point of internal current generator. Add resistor 10k to ground.
Tgen
-
Reference point for internal timing circuit. Add capacitor 470 pF to ground.
This pin provides Green video output to the TV SCART
Digital Pins:
Power/Ground Pins:
9
®
AVPro 5003
Triple SCART A/V Switch
ABSOLUTE MAXIMUM RATINGS
Operation beyond the maximum ratings may damage the device
PARAMETER
RATING
UNIT
-55 to 150
°C
+150
°C
Positive supply voltages
-0.3 < VCC < 6V; VCC-0.3 < VDD
< 13
V
Negative supply voltages
-6 < VEE < +0.3
V
-0.3V to VCC+0.3
V
VEE -0.3V to VCC+0.3
V
-0.3V to +15
V
Storage temperature
Junction operating temperature
Voltage applied to Digital Inputs
audio/video input pins
function input pins (300
Ω source )
TARGET SPECIFICATIONS
Unless otherwise specified: 0° < Ta < 70 °C; power supplies VCC = +5.0 V ±5%, VEE = -5.0 V ±5%
VDD = 12.0 V ±5%.
PARAMETER
CONDITION
MIN
NOM
MAX
130
150
UNIT
Operating Characteristics
Power supply currents
All outputs loaded
mA
VCC (+5 VDC)
VEE (-5 VDC)
-65
VDD (+12 VDC)
-45
18
PSRR
fin = 100 Hz, 0.1 Vpp on VCC/
VEE
Switch time
From serial data acknowledge
28
40
dB
µsec
2.0
Serial Port Timing (reference timing diagram on page 15)
SCLK Input Frequency
400
kHz
SCLK LOW time (tCL)
1.3
µsec
SCLK HIGH time (tCH)
0.6
µsec
Rise time (tRT)
SCLK and SDATA
300
nsec
Fall time (tFT)
SCLK and SDATA
300
nsec
Data set-up time* (tDSU)
SDATA change to SCLK HIGH
100
nsec
Data hold time* (tDH)
SCLK LOW to SDATA change
0
nsec
Start set-up time (tSSU)
0.6
µsec
Start hold time (tSH)
0.6
µsec
Glitch rejection
maximum pulse on SCLK
and/or SDATA
* These specifications also apply to an acknowledge generated by the device.
10
50
nsec
®
AVPro 5003
Triple SCART A/V Switch
PARAMETER
CONDITION
MIN
NOM
MAX
UNIT
Digital I/O Characteristics (SCLK, SDATA)
High level input voltage
0.7*
VCC
VCC+0.3
V
Low level input voltage
GND-0.3
0.3*
VCC
V
High level input current
Vin = Vcc - 1.0V
-10
10
µA
Low level input current
Vin = 1.0V
-10
-10
µA
Low level output voltage (SDATA)
IOL = 3 mA
0.6
V
Fall time (tFT)(SDATA) acknowledge
or read
VIH MIN to VIL Max with
CL = 400 pF
250
nS
0.4
Digital I/O Characteristics (DO_0, DO_1, TV_Fnc, AUX_Fnc, VCR_Fnc)
0.4
Digital output low level output
voltage
DO_0, DO_1, Register bits
read 0
4.7 k pullup
TV_Fnc output level
10 k load
Register 0 = xxxxxx00
Register 0 = xxxxxx01
Register 0 = xxxxxx10 or 11
0.0
5.0
10.0
AUX_Fnc/VCR_Fnc
input levels
Register bits read 00
Register bits read 01
Register bits read 10
0.0
4.5
9.5
1.0
6.0
10.5
V
1.2
6.5
VDD
V
V
V
2.0
7.0
VDD
V
V
V
Video Characteristics - Unless otherwise noted, typical output loading on all video outputs is 150 Ω. All video
outputs are capable of withstanding a sustained 75 ohm load to ground without damage.
Input impedance
All video inputs
Input dynamic range
fin = 100 kHz, THD < 1.0%
Gain
1.0 Vpp input, fin = 100 kHz
1.9
Output gain inequality
RGB or SVHS output channel
to channel
-2.5
kΩ
100
1.25
2.0
Vpp
2.1
V/V
2.5
%
Output DC level at IC pin
V
Blank level clamp voltage
RGB, CVBS or luma
1.3
V
Average level
chroma
1.9
V
65
dB
Signal to noise ratio
1 Vpp input
58
Cross talk
fin = 4.43 MHz, 1 Vpp
Output to output differential delay
RGB signals, fin = 100 kHz
Blanking level
-45
dB
-20
20
nsec
Input or output, logical “0”
0.0
0.4
V
Input or output, logical “1”
1.0
3.0
V
Blanking delay
BLANK to RGB signals
-50
50
nsec
Differential phase
TV_YCout
-3.0
2.5
Deg.
Differential gain
TV_YCout
-5
5
%
11
®
AVPro 5003
Triple SCART A/V Switch
Audio Characteristics - Unless otherwise noted, all audio outputs shall drive a load of 10 kΩ. All audio outputs
will withstand a sustained short to ground without damage.
PARAMETER
CONDITION
Input impedance
Gain
fin = 1.0 kHz, 1 Vpp
Frequency response
1 Vpp input
MIN
NOM
20
50
0.95
1.0
MAX
UNIT
kΩ
1.05
V/V
Flat within ± 0.3 dB
20
kHz
Measured -3 dB point
100
kHz
Signal to Noise ratio
A weighting filter
fin = 1.0 kHz, 2 Vrms, 0 dB
attenuation
90
dB
Distortion (THD)
fin = 1.0 kHz, 1 Vrms, 0 dB
attenuation
.02
fin = 1.0 kHz, 2 Vrms, 0 dB
attenuation
Output impedance
0.05
%
0.10
%
Ω
TBD
Output DC Offset
Input to Output, Stereo
Output DC Offset
Input to Output, Mod_Mono
Output phase matching
fin = 1.0 kHz, 1 Vrms; any
stereo pair
Channel separation Left - Right
Channel separation channel - channel
fin = 1.0 kHz, 1 Vrms, 0 dB
attenuation
Output attenuation (volume control)
TV_Lout/TV_Rout
-40
-45
40
mV
45
mV
0.5
Deg.
80
dB
Register 2 = xx000000, Mute =
OFF
0
dB
Register 2 = xx011111, Mute =
OFF
-31
dB
Mute ON (Register 0 =
xxx1xxxx)
-75
dB
Attenuation accuracy
5 bit (0 – 31 dB)
-5
Audio to video path delay
Video input = 1.0 Vpp @ 100
kHz
Audio input = 1.0 kHz, 1 Vrms
12
5
1.5
%
µsec
®
AVPro 5003
Triple SCART A/V Switch
SCART
Connector
Output
Pin
75Ω
RL = 75
ESD
Protection
Video Output Load (Typical)
Chroma output (SVHS)
SCART
Pin 15
SVHS_Cout
RL = 75
Control
Chroma input (SVHS)
SVHS Cin
0.01 µF
VCR SCART pin 15 Load (Typical)
Output
Pin
SCART
Connector
300Ω
RL ≥ 10kΩ
ESD
Protection
Audio Output Load (Typical)
13
ESD
Protection
®
AVPro 5003
Triple SCART A/V Switch
VDD
(+12 V)
SCART
Connector
Internal
Pullup
TV_Fnc
Output
Pin
RL ≥ 10kΩ
ESD
Protection
TV Function Switching (Typical)
SCART
Connector
Input
Pin
ESD
Protection
VCR/AUX Function Switching Input (Typical)
SCART
Connector
0.01 µF
Input
Pin
ESD
Protection
SCART Audio Input (Typical)
14
®
AVPro 5003
Triple SCART A/V Switch
SCART
Connector
C = .01 µF
ESD
Protection
Input
Pin
RL = 75Ω
Video Input (Typical)
tCH
tFT
tCL
SCLK
tsh
tDH
tDSU
tPSU
tssu
SDATA
Start
Stop
tRT
Serial Port Timing (Typical)
15
®
AVPro 5003
Triple SCART A/V Switch
PACKAGE PIN DESIGNATIONS
17
9
49
AVPro
5003-CG
25
1
41
33
GND
VEE
VCC
AUX_Lout
VCR_Lout
TV_Lout
Lout
VCC
Mono
Rout
TV_Rout
AUX_Rout
VCR_Rout
VCC
VEE
GND
VEE
SVHS_in
AUX_YCin
VCR_YCin
ABLANK
EBLANK
AUX_R
AUX_G
AUX_B
Vref
AUX_Fnc
VCR_Fnc
AUX_Lin
VCR_Lin
AUX_Rin
VCR_Rin
57
GND
VCC
SVHS_Cout
VCR_YCout
AUX_YCout
TV_B
TV_G
VCC
TV_R
BLANK
TV_YCout
TV_Mod
TV_C
TV_Fnc
VCC
GND
(Top View)
64-Lead Quad Flatpack (MQFP)
AVPro® 5003
16
VEE
VDD
DO_1
DO_0
SCLK
SDATA
Tgen
Rbias
Enc_Y
Enc_C
Enc_YC
Enc_R
Enc_G
Enc_B
Lin
Rin
®
AVPro 5003
Triple SCART A/V Switch
MECHANICAL DRAWING
64-Lead QFP
17.00 (0.669)
17.40 (0.685)
17.00 (0.669)
17.40 (0.685)
2.65 (0.104)
13.80 (0.543)
3.00 (0.118)
14.20 (0.559)
1.41 (0.055)
0.10 (0.0039)
0.25 (0.0098)
0.80 (0.031)
0.88 (0.034)
0.30 (0.0118)
0.45 (0.0177)
ORDERING INFORMATION
PART DESCRIPTION
AVPro®
5003 Triple audio/video switch
ORDER NO.
PACKAGE MARK
AVPro 5003-CG
AVPro® 5003-CG
No responsibility is assumed by TDK Semiconductor Corporation for use of this product nor for any infringements of patents and trademarks
or other rights of third parties resulting from its use. No license is granted under any patents, patent rights or trademarks of TDK
Semiconductor Corporation, and the company reserves the right to make changes in specifications at any time without notice. Accordingly, the
reader is cautioned to verify that the data sheet is current before placing orders.
2
2
Purchase of I C components of TDK Corporation or one of its sublicensed Associated Companies conveys a license under the Philips I C
2
2
Patent Rights to use these components in an I C system, provided that the system conforms to the I C Standard Specification as defined by
Philips.
TDK Semiconductor Corp., 2642 Michelle Dr., Tustin, CA 92780, (714) 508-8800, FAX (714) 508-8877, http://www.tdksemiconductor.com
1999 - 2000 TDK Semiconductor Corporation
08/28/00- rev. I
17