WM9713L_06 WOLFSON [Wolfson Microelectronics plc], WM9713L_06 Datasheet - Page 45
![no-image](/images/no-image-200.jpg)
WM9713L_06
Manufacturer Part Number
WM9713L_06
Description
AC 97 Audio + Touchpanel CODEC
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM9713L_06.pdf
(108 pages)
- Current page: 45 of 108
- Download datasheet (2Mb)
Pre-Production
PCBEEP INPUT
DIFFERENTIAL MONO INPUT
w
Pin 19 (PCBEEP) is a mono, line level input intended for externally generated signal or warning
tones. It is routed directly to the record selector and all three output mixers, without an input
amplifier. The signal gain into each mixer can be independently controlled, with a separate mute bit
for each signal path.
PCBEEP is biased internally to the reference voltage VREF. When the signal is not selected as an
input to any of the mixers the input remains biased to VREF using special anti-thump circuitry to
suppress any audible clicks when changing inputs.
Table 30 PCBEEP Control
PCBEEP and MONOIN inputs can be configured to provide a differential mono input. This is
achieved by mixing the two inputs together using the headphone mixers or the speaker mixer. Note
that the gain of the MONOIN PGA must match the gain of the PCBEEP mixer input to achieve a
balanced differential mono input.
16h
PCBEEP input
REGISTER
ADDRESS
15
14:12
11
10:8
7
6:4
BIT
B2H
B2HVOL
B2S
B2SVOL
B2M
B2MVOL
LABEL
1
010
(0dB)
1
010
(0dB)
1
010
(0dB)
DEFAULT
Mute PCBEEP path to headphone mixer
1: Mute, 0: No mute (ON)
PCBEEP to headphone mixer gain
000: +6dB
… (3dB steps)
111: -15dB
Mute PCBEEP path to speaker mixer
1: Mute, 0: No mute (ON)
PCBEEP to speaker mixer gain
000: +6dB
… (3dB steps)
111: -15dB
Mute PCBEEP path to mono mixer
1: Mute, 0: No mute (ON)
PCBEEP to mono mixer gain
000: +6dB
… (3dB steps)
111: -15dB
DESCRIPTION
PP Rev 3.0 June 2006
WM9713L
45
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