WM9705
Production Data
POWER CONSUMPTION
DIGITISER PD
REG 78H (PRP)
RECORD MUX
MODE
DESCRIPTION
EAPD
PR0
PR1
PR2
PR3
PR5
PR4
PR6
CURRENT
CONSUMPTION
AVDD
(mA
DVDD
(mA)
TOTAL
POWER
(mW)
Record and Playback
Mic Record (note 1)
Other Input Record
Other Input Record
PR6
Other Input Record
PR6 and PR2
Other Input Record
PR6 and PR3
Playback Only
Low Power
Playback (note 2)
Playback Only
Playback Only
PR6
Playback Only
PR6 and PR2
Playback Only
PR6 and PR3
Record Only
Mic Record (note 1)
Other Input Record
Other Input Record
PR6
Other Input Record
PR6 and PR2
Other Input Record
PR6 and PR3
Power Down
Power Down
(note 3)
Pen Digitiser
Pen Digitiser
(Note 4)
1
1
1
1
0
1
1
X
11
XXXL
XXXR
0.1
3.6
12.2
1
1
1
1
1
1
1
X
00
XXXL
XXXR
0.0001
0.002
0.007
0
0
0
0
0
1
1
1
1
1
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
X
X
X
X
X
00
00
00
00
00
000L
000R
100L
100R
100L
100R
100L
100R
100L
100R
12.9
15.8
14.3
7.2
0.3
13.3
13.3
11.3
13.3
12.9
86.5
96
84.5
67.7
43.6
1
1
1
1
1
0
0
0
0
0
1
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
X
X
X
X
X
00
00
00
00
00
001L
001R
001L
001R
001L
001R
001L
001R
001L
001R
5.5
11.1
9.7
4.0
0.4
11.5
11.5
11.5
11.5
11.5
56.1
74.6
70
51.2
39.3
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
X
X
X
X
X
00
00
00
00
00
000L
000R
001L
001R
001L
001R
001L
001R
001L
001R
14.8
17.7
16.3
10.7
0.5
14.3
14.3
14.3
14.3
14.1
96
105.6
101
82.5
48.2
Notes:
1. When the ADC input mux is set to mic input to BOTH ADC channels, (SR2-0 and SL2-0 both set to ‘0’), one ADC is
shared between both channels and the other is powered off to save current. The same digital data is output to both slots.
2. The POP bit (reg 20h) also needs to be set for this mode.
3. These values are recorded with no external clocks applied to the WM9705.
4. Pen active duty cycle is approximately 10%. Average analogue current consumption is approximately 10% of stated figure.
w
PD Rev 4.0 December 2003
12
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
