wm8750 Wolfson Microelectronics plc, wm8750 Datasheet - Page 12

• Manufacturer Part Number: wm8750
• Description: Stereo Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

WM8750L
w
Control Register
Bit
OFF
Standby
(500 KOhm VMID string)
Playback to Line-out
Playback to Line-out
(64x oversampling mode)
Playback to 16 Ohm Headphone 01 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 11
Playback to 16 Ohm Headphone 01 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 11
0.1mW / channel into load
(JEITA CP-2905B)
Playback to 16 Ohm Headphone 01 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 11
5mW / channel into load
Playback to 16 Ohm Headphone 01 1 0 0 0 0 0 1 1 1 1 0 0 0 1 0 0 11
(capless mode using OUT3)
Playback to 8 Ohm BTL Speaker 01 1 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 11
Headphone Amp
(line-in to 16 Ohm headphone)
Speaker Amp
(line-in to 8 Ohm speaker)
Record from Line-in
Record from Line-in
(64x oversampling mode)
Record from mono microphone
Record from mono microphone
(differential)
Stereo Record & Playback
Stereo Record & Playback
(64x oversampling mode)
POWER CONSUMPTION
The power consumption of the WM8750L depends on the following factors.
•
•
Table 1 Supply Current Consumption
Note: All figures are at T
unless otherwise noted.
Supply voltages: Reducing the supply voltages also reduces supply currents, and therefore results in significant power
savings, especially in the digital sections of the WM8750L.
Operating mode: Significant power savings can be achieved by always disabling parts of the WM8750L that are not
used (e.g. mic pre-amps, unused outputs, DAC, ADC, etc.)
00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
10 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11
01 1 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 11
01 1 0 0 0 0 0 1 1 1 1 0 0 0 0 0 1 11
01 1 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 11
01 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 11
01 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 11
01 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 11
01 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 11 R32, LMICBOOST=11; 3.3
01 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 11 R32, LMICBOOST=11; 3.3
01 1 1 1 1 1 1 1 1 0 0 1 1 0 0 0 0 11
01 1 1 1 1 1 1 1 1 0 0 1 1 0 0 1 1 11
R25 (19h)
A
= +25
o
C, Slave Mode, fs = 48kHz, MCLK = 12.288 MHz (256fs), with zero signal (quiescent)
R26 (1Ah)
R24
R23
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
01
00
R24, OUT3SW=00
R24, ROUT2INV=1
R24, ROUT2INV=1
R23, DATSEL=01;
Interface Stopped
R23, DATSEL=01
R32, LINSEL=11
Clocks Stopped
Clocks Stopped
Clocks stopped
Other settings
-27.959 dBFS
-25.547 dBFS
-22.694 dBFS
-10.969 dBFS
-8.558 dBFS
-5.704 dBFS
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
3.3
2.5
1.8
2.5
1.8
2.5
1.8
3.3 12.778 3.3 10.650 3.3 0.323 3.3
2.5 11.070 2.5
1.8
3.3
2.5
1.8
V
AVDD
I (mA)
0.000
0.000
0.000
0.341
0.282
0.194
4.007
3.025
2.449
3.796
2.870
2.338
3.997
3.026
2.451
3.998
3.029
2.454
3.980
3.028
2.450
3.986
3.027
2.452
4.151
3.151
2.533
1.665
1.256
0.865
1.857
1.372
0.928
9.240
8.407
6.744
5.223
4.512
3.834
5.207
4.630
3.755
5.561
4.890
3.925
8.585
8.570
7.061
5.601
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
3.3
2.5
1.5
1.5
3.3
2.5
1.5
V
DCVDD
I (mA)
0.011
0.009
0.007
0.011
0.009
0.007
5.380
3.687
2.029
4.541
3.093
1.691
5.380
3.687
2.029
6.430
4.462
2.475
6.481
4.503
2.503
5.567
3.688
2.029
5.381
3.688
2.029
0.011
0.009
0.007
0.011
0.009
0.007
6.493
4.243
2.141
5.822
3.740
1.899
6.337
4.139
2.128
6.349
4.139
2.130
7.095
3.846
9.237
6.101
3.258
3.3 0.000 3.3
2.5 0.000 2.5
1.8 0.000 1.8
3.3 0.000 3.3
2.5 0.000 2.5
1.8 0.000 1.8
3.3 0.301 3.3
2.5 0.215 2.5
1.8 0.147 1.8
3.3 0.302 3.3
2.5 0.215 2.5
1.8 0.147 1.8
3.3 0.301 3.3
2.5 0.215 2.5
1.8 0.147 1.8
3.3 0.301 3.3
2.5 0.215 2.5
1.8 0.147 1.8
3.3 0.301 3.3 12.558
2.5 0.215 2.5 12.604
1.8 0.147 1.8 12.275
3.3 0.301 3.3
2.5 0.215 2.5
1.8 0.147 1.8
3.3 0.301 3.3
2.5 0.215 2.5
1.8 0.147 1.8
3.3 0.000 3.3
2.5 0.000 2.5
1.8 0.000 1.8
3.3 0.000 3.3
2.5 0.000 2.5
1.8 0.000 1.8
3.3 0.325 3.3
2.5 0.232 2.5
1.8 0.159 1.8
3.3 0.326 3.3
2.5 0.232 2.5
1.8 0.160 1.8
3.3 0.325 3.3
2.5 0.231 2.5
1.8 0.163 1.8
3.3 0.325 3.3
2.5 0.231 2.5
1.8 0.163 1.8
2.5 0.231 2.5
1.8 0.159 1.8
3.3 0.325 3.3
2.5 0.232 2.5
1.8 0.160 1.8
V
DBVDD
I (mA)
V
HPVDD
I (mA)
0.000
0.000
0.000
0.000
0.000
0.000
0.748
0.723
0.427
0.744
0.722
0.427
0.748
0.723
0.427
2.142
2.132
1.977
1.133
1.110
0.726
0.603
0.575
0.352
0.749
0.725
0.429
0.975
0.985
0.732
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.000
0.680
0.569
0.351
0.698
0.581
0.348
PD Rev 4.3 October 2006
Tot. Power
34.4388
19.1250
30.9639
17.2500
34.4058
19.1275
42.4743
24.5950
11.9529
76.9560
50.8750
30.5241
36.2571
20.1000
34.4388
19.0725
52.9914
32.2050
15.6369
37.5243
21.2100
10.0377
39.1677
22.5000
10.2444
40.3755
23.1500
10.5534
80.6223
47.4125
22.1400
62.1390
34.9375
15.8832
0.0363
0.0225
0.0105
1.1616
0.7275
0.3597
8.4849
7.7781
8.4885
9.0285
8.5011
8.0025
4.9750
2.3397
9.3819
5.9150
2.9985
mW
Production Data
12