WM9713 datasheet(29/111 Pages) WOLFSON

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Preliminary Technical Data

WM9713L

PTD, March 2004, Rev 2.2

RECORD SELECTOR

The record selector determines which input signals are routed into the audio ADC. The left and right

channels can be selected independently. This is useful for recording a phone call: one channel can

be used for the RX signal and the other for the TX signal, so that both sides of the conversation are

digitized.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

RECBST

20dB Boost

1: Boost ADC input signal by 20dB

0 :No boost

5:3

RECSL

000

Left ADC signal source

000: MICA (pre-PGA)

001: MICB (pre-PGA)

010: LINEL (pre-PGA)

011: MONOIN (pre-PGA)

100: Headphone Mix (left)

101: Speaker Mix

110: Mono Mix

111: Reserved (do not use this setting)

14h

Record

Routing /

Mux Select

2:0

RECSR

000

Right ADC signal source

000: MICA (pre-PGA)

001: MICB (pre-PGA)

010: LINER (pre-PGA)

011: MONOIN (pre-PGA)

100: Headphone Mix (right)

101: Speaker Mix

110: Mono Mix

111: Reserved (do not use this setting)

Table 10 Audio Record Selector

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