Datasheet

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PCM3002
PCM3003
SBAS079A – OCTOBER 2000 – REVISED OCTOBER 2004
PIN ASSIGNMENTS—PCM3002 (continued)
NAME PIN I/O DESCRIPTION
V
IN
L 6 I ADC analog input, Lch
V
IN
R 3 I ADC analog input, Rch
V
OUT
L 19 O DAC analog output, Lch
V
OUT
R 20 O DAC analog output, Rch
V
REF
1 4 – ADC reference 1
V
REF
2 5 – ADC reference 2
ZFLG 16 O Zero flag output, active LOW
(3)
(3) Open-drain output
PIN ASSIGNMENTS—PCM3003
NAME PIN I/O DESCRIPTION
AGND1 23 – ADC analog ground
AGND2 22 – DAC analog ground
BCKIN 11 I Bit clock input
(1)
DEM0 18 I De-emphasis control 0
(1) (2)
DEM1 17 I De-emphasis control 1
(1) (2)
DGND 13 – Digital ground
DIN 15 I Data input
(1)
DOUT 12 O Data output
LRCIN 10 I Sample rate clock input (f
s
)
(1)
PDAD 7 I ADC power down, active LOW
(1) (2)
PDDA 8 I DAC power down, active LOW
(1) (2)
SYSCLK 9 I System clock input
(1)
V
CC
1 1, 2 – ADC analog power supply
V
CC
2 24 – DAC analog power supply
V
COM
21 – ADC/DAC common
V
DD
14 – Digital power supply
V
IN
L 6 I ADC analog input, Lch
V
IN
R 3 I ADC analog input, Rch
V
OUT
L 19 O DAC analog output, Lch
V
OUT
R 20 O DAC analog output, Rch
V
REF
1 4 – ADC reference 1
V
REF
2 5 – ADC reference 2
20BIT 16 I 20-bit format select
(1)(2)
(1) Schmitt-trigger input
(2) With 100-k Ω typical internal pulldown resistor
6