DV-505/DVF-4050/-S
7
CIRCUIT DESCRIPTION
Port No. Port Name I/O Main Function Alternate function
Input Output
18 B FLAG I 12S error flag DVD SER VALID
19 B SYNC I 12S selector/ABS time SER SYNC
Video DAC
27,26,25 R/G/B (OUT) O R/G/B output
32~34 Y/C/CV (OUT) O Y/C/CV output
29 I REF RG I I REF DAC RGB
28 V REF RG I V REF DAC RGB
36 I REF YCC I I REF DAC YCC
35 V REF YCC I Y REF DAC YCC
23 VDD RGB - YDDA RGB = 2.5V
24 VSS RGB - GND
30 VDD YCC - YDDA YCC = 2.5V
31 VSS YCC - GND
Shared memory interface
69~66 SMI ADR(0~3) O Address bus SDRAM
58~63 SMI ADR(4~9) O Address bus SDRAM
70~73 SMI ADR(10~13) O Address bus SDRAM
84~93
97~102 SMI DATA(0~15) I/O Data bus SDRAM
74,75 SMI CS(0,1) O Chip select bank 0,1
76 SMI RAS O RAS SDRAM
77 SMI CAS O CAS SDRAM
78 SMI WE O SDRAM write enable
79,80 SMI DQML, U O DQ MASK EN LOW, UP
82 SMI CLKIN I SDRAM clock in
95 SMI CLKOUT O SDRAM clock out
Power supply
4,47,81,107
136,159,184 VDD3.3 - 3.3V Power supply
14,37,64,94
119,149,171,198 VDD2.5 - 2.5V Power supply
5,15,38,50,65,83
96,108,121,137 VSS - GND
150,160,172,185,199
Pin No. Pin Name I/O Description
1 BCK I Audio data bit clock input.
2 DATA I Audio data digital input.
3 LRCK I Audio data latch enable input.
4 DGND - Digital ground.
5 VDD - Digital power supply (+3.3v).
6 VCC - Analog power supply (+5v).
7 VOUTL O Analog output for L-channel.
8 VOUTR O Analog output for R-channel.
9 AGND - Analog ground.
10 VCOM - Common voltage decoupling.
11 ZEROR O Zero flag output for R-channel.
12 ZEROL O Zero flag output for L-channel.
13 MD I Mode control data input.
14 MC I Mode control clock input.
15 ML I Mode control latch input.
16 SCK I System clock input
D/A Converter : PCM1748(IC302)
