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AK8813 Datasheet(PDF) 5 Page - Asahi Kasei Microsystems |
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AK8813 Datasheet(HTML) 5 Page - Asahi Kasei Microsystems |
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5 / 51 page  ASAHIKASEI [AK8813/14] Rev.00 - 6 - 2004/Oct PIN/FUNCTION 48pin LQFP No. Pin Name I/O Description 1 UD9 I/O Test pin. Open for normal operation 2-5, 8-11 D7 - D0 I 27MHz 8-Bit 4:2:2 multiplexed Y,Cb,Cr Data Input. For Rec.656 format, AK8813/14 decodes EAV. For non-Rec.656 format (without EAV), AK8813/14 operates in Master or Slave mode. 12-13 TEST I Test pin. Ground for normal operation 14 SELA I The slave address is set with this pin. “L”:40H “H”:42H 15 SCL I Serial interface clock 16 SDA I/O Serial interface data 17 PD I Power Down Pin. After returning from PD mode to normal operation, RESET Sequence should be done to AK8813/14. 18 /RESET I After this pin becomes “L”, AK8813/14 starts the internal initializing sequence. After initializing sequence, AK8813/14 is set NTSC mode, Rec.656 decoding mode. All DACs Off condition. After power up, AK8813/14 must be initialized with this pin. (27MHz Clock is necessary for reset sequence.) 20 Y O Output of Luminance Signal. 22 C O Output of the Chrominance signal 24 COMPOSITE O Output of Composite Video signal 27 VREFOUT O Output of the Internal Vref. Terminate with 0.1uF or more capacitor. 28 VREFIN I Input of the Reference Voltage 29 IREF O The currents flow this pin adjusts the full-scale output current of the DAC. Connect this pin to Analog ground via a 6.8kohm resistor ( better than +/- 1% accuracy ). 32-39 UD0-UD7 I/O Test pin. Open for normal operation 41 SYSCLK I 27MHz Clock Input. The polarity could be inverted by SYSINV. 43 UD8 I/O Test pin. Open for normal operation 45 FID /VSYNC I/O Either of FID or VSYNC selected by the register. Rec.656 decode mode :Output Master mode : Output Slave mode : Input FID shows that “L” is odd field and ”H” is even field. 46 HSYNC I/O Rec.656 decode mode : Output Master mode : Output Slave mode : Input 48 SYSINV I “L “ : data is latched with rising edge. “H” : data is latched with falling edge. 21,26 AVDD P Analog Power Supply 6,31, 42,44 DVDD P Digital Power Supply 19,23,25 AVSS G Analog Ground 7,30, 40,47 DVSS G Digital Ground |
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