WM9715L
Production Data
AUDIO PATHS OVERVIEW
18h:12-8
00000 = +12dB
11111 = -34.5dB
20h:7
(Loopback)
Slot 3
L Line Volume
02h:12-8
00000 = 0dB
ADC Left
AC Link
1
to SPKR MIXER
Left Channel
18 Bit DAC
Tone and 3D
08h / 22h /
PCM
PGA
0
11111 = -46.5dB
20h:13 (3DE)
L
1
LOUT2
Pin 35
headphone
mixer L
0
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
6dB -> -15dB
02h:6 (INV)
Zero-
cross
detect
10h:12-8
00000 = +12dB
11111 = -34.5dB
14h:15-12
1
02h:7 (ZC)
02h:15 (MUTE)
to SPKR MIXER
LINEINL
Pin 23
LINEL PGA
0
16h:8 (SRC)
L Headphone Volume
04h:12-8
00000 = 0dB
11111 = -46.5dB
PCBEEP
Pin 19
HPOUTL
Pin 39
0Ch:0-4
00000 = +12dB
11111 = -34.5dB
Zero-
cross
detect
PHONE
Pin 20
PHONE PGA
04h:7 (ZC)
04h:15 (MUTE)
Phone
Mixer
6dB -> -15dB
0dB / 20dB
0Eh:12-8
00000 = +12dB
11111 = -34.5dB
0Ah7:4
Mono Volume
06h:4-0
00000 = 0dB
11111 = -46.5dB
MIC1
Pin 21
MICL PGA
0dB / 20dB
OEh:6-5 (MS)
MONOOUT
Pin 33
0dB / 20dB
0dB / 20dB
6dB -> -15dB
Zero-
cross
detect
06h:7 (ZC)
06h:15 (MUTE)
PCBEEP
PHONE
DACR
1Ah[10:8] = 110
1Ah[10:8] = 101
MONOMIX
SPKRMIX
OUT3 Volume
16h:4-0
00000 = 0dB
11111 = -46.5dB
Note: MS bits
also affect
sidetone path
Gain Ranges:
1Ch:13 (GRL=0)
1Ch:11:8
LINER
MICR
MICL
ALCL
(1Ah[10:8] = 000) & (MS = 01)
(1Ah[10:8] = 000) & (MS = 00 or 11)
1Ah[10:8] = 111
0000 = 0db
1111 = +22.5dB
1Ch:6 (GRL=1)
1Ch:13-8
11111 = +30dB
ALCR
AUXDAC
OUT3
Zero-Pin 37
1Ah:14
0 = 0dB
1 = 20dB
1Ah:
10-8
16h:10-9
(OUT3SRC)
Left Channel
18 Bit ADC
Variable Slot
5C:1-0 (ASS)
5C:3 (HPF)
00000 = -17.25dB
cross
detect
ADC
PGA
1Ah[10:8] = 100
AC Link
16h:7 (ZC)
16h:15 (MUTE)
1Ch:15 (Mute)
(1Ah[10:8] = 000) & (MS = 10)
1Ah[10:8] = 011
5C:4 (ADCO)
ALC:5Ch/60h/62h
AUXDAC
ALCR
ALCL
MICL
MICR
LINER
DACR
PHONE
18h:4-0
00000 = +12dB
11111 = -34.5dB
PCBEEP
20h:7
(Loopback)
MONOMIX
SPKRMIX
Slot 4
Tone and 3D
08h / 22h /
1
R
ADC Right
AC Link
Right Channel
18 Bit DAC
PCM
PGA
0
20h:13 (3DE)
10h:5-0
00000 = +12dB
11111 = -34.5dB
12 Bit Resistor
string DAC
2Eh/64h/12h:0(EN)
LINEINR
Pin 24
LINER PGA
5Ch:8 (DS)
R Headphone Volume
04h:4-0
00000 = 0dB
headphone
mixer R
6dB -> -15dB
0Eh:5-0
00000 = +12dB
11111 = -34.5dB
11111 = -46.5dB
6dB ->
-15dB14h:15-12
HPOUTR
Pin 41
MS = 01
6dB -> -15dB
MICR PGA
Zero-
cross
detect
6dB -> -15dB
6dB -> -15dB
MS = 10 or 11
0Eh:6-5
(MS)
Note: MS bits also
affect ADC input
path from MICs
04h:7 (ZC)
04h:15 (MUTE)
MIC2
6dB -> -15dB
Pin 22
R Line Volume
02h:4-0
00000 = 0dB
11111 = -46.5dB
FROM
LINEL
PGA
1
0
ROUT2
Pin 36
16h:8 (SRC)
FROM
DACL
Speaker
Mixer
Zero-
cross
detect
0Ch:14
02h:7 (ZC)
02h:15 (MUTE)
6dB -> -15dB
6dB -> -15dB
1Ah[2:0] = 110
Note: MS bits
also affect
sidetone path
Gain Ranges:
1Ch:6 (GRR=0)
1Ch:3:0
0000 = 0db
1111 = +22.5dB
1Ch:6 (GRR=1)
1Ch:5-0
11111 = +30dB
00000 = -17.25dB
1Ah[2:0] = 101
(1Ah[2:0] = 000) & (MS = 01)
(1Ah[2:0] = 000) & (MS = 10 or 11)
(1Ah[2:0] = 000) & (MS = 00)
PR3 (REF disable) &
58h:10 (SVD)
1Ah:
2-0
1Ah:14
0 = 0dB
1 = 20dB
4.5k
3.6k
MICBIAS
Pin 28
Right Channel
18 Bit ADC
Variable Slot
5C:1-0 (ASS)
5C:3 (HPF)
1Ah[2:0] = 111
1Ah[2:0] = 100
1Ah[2:0] = 011
AC Link
500k
50k
50k
ADC
PGA
1Ch:15 (Mute)
5C:4 (ADCO)
500k
ALC:5Ch/60h/62h
AVDD
Pin 25
AGND
Pin 24
CAP2
Pin 32
VREF
Pin 27
Figure 1 Audio Paths Overview
PD Rev 4.0 December 2007
14
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
