WM9712LGEFL/V Wolfson Microelectronics, WM9712LGEFL/V Datasheet - Page 18

• Manufacturer Part Number: WM9712LGEFL/V
• Description: Multimedia Misc Stereo AC'97 CODEC T/P Interface
• Manufacturer: Wolfson Microelectronics
• Type: Audio and Touchpanel Codecr

Specifications of WM9712LGEFL/V

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Mounting Style: SMD/SMT
• Package / Case: QFN
• Audio Codec Type: Stereo
• No. Of Adcs: 3
• No. Of Dacs: 3
• No. Of Input Channels: 8
• No. Of Output Channels: 4
• Adc / Dac Resolution: 12bit
• Adcs / Dacs Signal To Noise Ratio: 94dB
• Sampling Rate: 48kHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM9712L
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PCBEEP INPUT
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.
Table 5 PCBEEP Control
0Ah
PCBEEP input
REGISTER
ADDRESS
15
14:12
11
10:8
7
6:4
BIT
B2H
B2HVOL
B2S
B2SVOL
B2P
B2PVOL
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 phone mixer
1: Mute, 0: No mute (ON)
PCBEEP to phone mixer gain
000: +6dB
… (3dB steps)
111: -15dB
DESCRIPTION
PD Rev 4.5 August 2006
Production Data
18