wm9712l Wolfson Microelectronics plc, wm9712l Datasheet - Page 14

• Manufacturer Part Number: wm9712l
• Description: Ac?97 Audio And Touchpanel Codec
• Manufacturer: Wolfson Microelectronics plc

WM9712L
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AUDIO PATHS OVERVIEW
Figure 1 Audio Paths Overview
Pin 21
R
Pin 22
L
PCBEEP
MIC1
MIC2
LINEINL
LINEINR
PHONE
Pin 23
Pin 19
Pin 20
Pin 24
ADC Left
AC Link
11111 = -34.5dB
11111 = -34.5dB
00000 = +12dB
00000 = +12dB
11111 = -34.5dB
00000 = +12dB
10h:12-8
(Loopback)
0Ch:0-4
0Eh:12-8
ADC Right
11111 = -34.5dB
20h:7
00000 = +12dB
Note: MS bits
also affect
sidetone path
AC Link
Note: MS bits
also affect
sidetone path
1
0
10h:5-0
OEh:6-5 (MS)
(1Ah[10:8] = 000) & (MS = 00 or 11)
PHONE PGA
(1Ah[2:0] = 000) & (MS = 10 or 11)
LINEL PGA
MICL PGA
(1Ah[10:8] = 000) & (MS = 01)
(1Ah[10:8] = 000) & (MS = 10)
(1Ah[2:0] = 000) & (MS = 01)
(Loopback)
LINER PGA
(1Ah[2:0] = 000) & (MS = 00)
5Ch:8 (DS)
20h:7
20h:13 (3DE)
1
0
Tone and 3D
08h / 22h /
Slot 3
1Ah[10:8] = 110
1Ah[10:8] = 101
1Ah[10:8] = 111
1Ah[10:8] = 100
1Ah[10:8] = 011
1Ah[2:0] = 110
1Ah[2:0] = 101
1Ah[2:0] = 111
1Ah[2:0] = 100
1Ah[2:0] = 011
MS = 10 or 11
20h:13 (3DE)
Tone and 3D
08h / 22h /
Slot 4
1Ah:
10-8
1Ah:
Left Channel
to SPKR MIXER
2-0
18 Bit DAC
MS = 01
1Ch:13 (GRL=0)
1Ch:11:8
0000 = 0db
1111 = +22.5dB
1Ch:6 (GRL=1)
1Ch:13-8
11111 = +30dB
00000 = -17.25dB
Note: MS bits also
affect ADC input
path from MICs
1Ch:6 (GRR=0)
1Ch:3:0
0000 = 0db
1111 = +22.5dB
1Ch:6 (GRR=1)
1Ch:5-0
11111 = +30dB
00000 = -17.25dB
Gain Ranges:
0Eh:6-5
Gain Ranges:
(MS)
Right Channel
ADC
PGA
ADC
PGA
11111 = -34.5dB
00000 = +12dB
18 Bit DAC
0Eh:5-0
1Ch:15 (Mute)
1Ch:15 (Mute)
11111 = -34.5dB
MICR PGA
00000 = +12dB
2Eh/64h/12h:0(EN)
18h:12-8
PCM
PGA
12 Bit Resistor
string DAC
11111 = -34.5dB
00000 = +12dB
18h:4-0
PCM
PGA
1 = 20dB
1 = 20dB
0 = 0dB
0 = 0dB
1Ah:14
1Ah:14
to SPKR MIXER
6dB -> -15dB
6dB -> -15dB
FROM
DACL
FROM
LINEL
PGA
0Ch:14
ALC:5Ch/60h/62h
Right Channel
ALC:5Ch/60h/62h
Variable Slot
5C:1-0 (ASS)
5C:4 (ADCO)
18 Bit ADC
5C:3 (HPF)
Left Channel
Variable Slot
5C:1-0 (ASS)
5C:4 (ADCO)
18 Bit ADC
5C:3 (HPF)
Speaker
Mixer
AC Link
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
AC Link
6dB -> -15dB
6dB -> -15dB
0dB / 20dB
0dB / 20dB
0dB / 20dB
0dB / 20dB
AUXDAC
ALCR
AUXDAC
ALCL
MICL
ALCR
14h:15-12
MICL
PCBEEP
MONOMIX
PHONE
ALCL
SPKRMIX
PCBEEP
0Ah7:4
DACR
LINER
MICR
MICR
LINER
DACR
PHONE
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
AVDD
Pin 25
14h:15-12
headphone
mixer L
Phone
Mixer
MONOMIX
500k
500k
SPKRMIX
PR3 (REF disable) &
58h:10 (SVD)
AGND
Pin 24
headphone
mixer R
50k
50k
16h:8 (SRC)
Pin 32
CAP2
02h:6 (INV)
16h:8 (SRC)
1
0
1
0
1
0
4.5k
R Headphone Volume
L Headphone Volume
11111 = -46.5dB
11111 = -46.5dB
11111 = -46.5dB
11111 = -46.5dB
11111 = -46.5dB
L Line Volume
00000 = 0dB
R Line Volume
00000 = 0dB
Mono Volume
00000 = 0dB
00000 = 0dB
00000 = 0dB
02h:12-8
16h:10-9
(OUT3SRC)
04h:12-8
Pin 27
06h:4-0
04h:4-0
02h:4-0
VREF
02h:15 (MUTE)
04h:15 (MUTE)
02h:15 (MUTE)
04h:15 (MUTE)
06h:15 (MUTE)
3.6k
PD Rev 4.5 August 2006
detect
04h:7 (ZC)
02h:7 (ZC)
Zero-
cross
detect
detect
detect
detect
Zero-
cross
Zero-
cross
Zero-
cross
Zero-
cross
02h:7 (ZC)
04h:7 (ZC)
06h:7 (ZC)
11111 = -46.5dB
OUT3 Volume
00000 = 0dB
16h:4-0
MONOOUT
HPOUTL
HPOUTR
LOUT2
Pin 35
Pin 39
16h:15 (MUTE)
Pin 41
ROUT2
Pin 33
Pin 36
detect
Zero-
cross
MICBIAS
16h:7 (ZC)
Pin 28
Production Data
Pin 37
OUT3
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