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 ® 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 2 ® 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 3 ® 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 4 ® 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 5 ® 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 6 ® 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. 7 ® 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