Marantz UD8004, Руководство по обслуживанию

Страница: 50 / 148

46
PCM1796DBR Pin Function
TERMINAL
I/O DESCRIPTIONS
NAME PIN
I/O DESCRIPTIONS
AGND1 19 ï Analog ground (internal bias)
AGND2 24 ï Analog ground (internal bias)
AGND3L 27
ï
Analog ground (L-channel DACFF)
AGND3R 16 ï Analog ground (R-channel DACFF)
BCK 6 I Bit clock input(1)
DATA 5 I Serial audio data input(1)
DGND 8
ï
Digital ground
IOUTL+ 25 O L-channel analog current
IOUTL– 26 O L-channel analog current output–
IOUTR+ 17 O R-channel analog current
IOUTR– 18 O R-channel analog current output–
IREF 20 ï Output current reference bias pin
LRCK 4 I Left and right clock (fS) input(1)
MC 12 I Mode control clock input(1)
MDI 11 I Mode control data input(1)
MDO 13 I/O Mode control readback data output(3)
MS 10 I/O Mode control chip-select input(2)
MSEL 3 I I2C/SPI select(1)
RST 14 I Reset(1)
SCK 7 I System clock input(1)
VCC1 23 ï Analog power supply, 5 V
VCC2L 28
ï
Analog power supply (L-channel DACFF), 5 V
VCC2R 15
ï
Analog power supply (R-channel DACFF), 5 V
VCOML 22 ï L-channel internal bias decoupling pin
VCOMR 21 ï R-channel internal bias decoupling pin
VDD 9
ï
Digital power supply, 3.3 V
ZEROL 1 I/O Zero flag for L-channel(2)
ZEROR 2 I/O Zero flag for R-channel(2)
(1) Schmitt-trigger input, 5-V tolerant
(2) Schmitt-trigger input and output. 5-V tolerant input and CMOS output
(3) Schmitt-trigger input and output. 5-V tolerant input. In I2C mode, this pin becomes an open-drain 3-state output; otherwise, this pin is a CMOS
output.