Evaluation Module User's Guide

Pin Assignments and Terminal Functions www.ti.com
Table 1-1. PCM2912A Terminal Functions (continued)
TQFP-36
Name Terminal I/O Description
V
CCR
21 -– Analog power supply for headphone amplifier of R-channel
V
OUT
R 22 O Headphone output for R-channel
MAMP 23 I Microphone preamplifier gain control (LOW: Preamplifier off; HIGH: Preamplifier on = +20
dB)
POWER 24 I Power consumption declaration select pin (LOW: 100 mA; HIGH: 500 mA)
PGND 25 – Analog ground for microphone bias, microphone amplifier, and PGA
V
CCP
26 – Analog power supply for PLL
TEST1 27 I Test pin. Must be set to high.
TEST0 28 I Test pin. Must be set to low.
SSPND 29 O Suspend flag (LOW: Suspend; HIGH: Operational state)
MMUTE 30 I Microphone mute control, active high (LOW: Mute off; HIGH: Mute on)
REC 31 O Status output for record (LOW: Record; FLASH: Mute on record; HIGH: Stop)
PLAY 32 O Status output for playback (LOW: Playback; FLASH: Mute on playback; HIGH: Stop)
12 Description SBAU141 – January 2009
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