Datasheet
www.ti.com
PIN ASSIGNMENTS
V
COM
MBIAS
MINM
MINP
AGND3
V
CC
3
REFO
V
DD
DGND
DOUTS
DOUT
DIN
BCK
LRCK
RTF PACKAGE
(TOP VIEW)
P0036-01
26
27
28
29
30
31
32
16
15
14
13
12
11
10
ATEST
V
IN
L
L/M
V
REF
1
V
REF
2
V
IN
R
V
CC
1
AGND1
PDWN
1
2
3
4
5
6
7
8
9
V
OUT
L
V
OUT
R
V
CC
2
AGND2
I2CEN
ADR
SCL
SDA
SCKI
25
24
23
22
21
20
19
18
17
PCM3052A
SLES160 – NOVEMBER 2005
DEVICE INFORMATION (continued)
TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME NO.
ADR 20 I Mode control address select input
(1)
AGND1 8 ADC analog ground
AGND2 22 DAC analog ground
AGND3 30 Microphone amplifier and bias analog ground
ATEST 1 O Analog test, must be open
DGND 15 Digital ground
BCK 11 I Audio data bit clock input
(2)
DIN 12 I Audio data digital input
(3)
DOUT 13 O Audio data digital output
DOUTS 14 O S/PDIF data digital output
I2CEN 21 I Mode control enable/disable input, active HIGH
(3)
L/ M 3 O ADC line/microphone select indicator
LRCK 10 I Audio data latch enable input
(2)
MBIAS 27 O Microphone bias output/decoupling, 0.75 V
CC
1
MINM 28 I Microphone amplifier input to ADC, inverting
MINP 29 I Microphone amplifier input to ADC, non-inverting
PDWN 9 I ADC and DAC power down control input, active LOW
(1)
REFO 32 O Reference output / decoupling, 0.5 V
CC
1
(1) Schimtt-trigger input with 50-k Ω typical internal pulldown resistor, 5-V tolerant
(2) Schimtt-trigger input with 50-k Ω typical internal pulldown resistor
(3) Schimtt-trigger input, 5-V tolerant
7