WM8351GEB/V Wolfson Microelectronics, WM8351GEB/V Datasheet - Page 161
WM8351GEB/V
Manufacturer Part Number
WM8351GEB/V
Description
Audio CODECs Audio CODEC plus pwr management
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8351GEBV.pdf
(328 pages)
Specifications of WM8351GEB/V
Number Of Adc Inputs
2
Number Of Dac Outputs
2
Conversion Rate
48 KSPS
Interface Type
Serial (2-Wire, 3-Wire, 4-Wire)
Resolution
12 bit
Operating Supply Voltage
3.7 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
BGA
Minimum Operating Temperature
- 25 C
Number Of Channels
2 ADC/2 DAC
Supply Current
260 uA
Thd Plus Noise
- 83 dB
Audio Codec Type
Stereo
No. Of Adcs
2
No. Of Dacs
2
No. Of Input Channels
8
No. Of Output Channels
6
Adc / Dac Resolution
24bit
Adcs / Dacs Signal To Noise Ratio
95dB
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Production Data
w
The register control fields for Fast Charging are described in Table 105. See Section 17.7.5 for
details of battery charger termination.
R25 (15h)
Interrupt Status
1
R168 (A8h)
Battery charger
control 1
R169 (A9h)
Battery charger
control 2
R170 (AAh)
Battery
Charger
Control 3
Table 105 Fast Charging Control
ADDRESS
BIT
3:0
6:5
9
5
4
CHG_FAST_R
DY_EINT
CHG_FAST
CHG_FAST_U
SB_THROTTL
E
CHG_ISEL
[3:0]
CHG_THROTT
LE_T [1:0]
LABEL
DEFAULT
0110
00
0
0
0
Indicates that the charger is ready to go
into fast charge.
(Rising Edge triggered)
Note: This bit is cleared once read.
Enable fast charging.
0 = Fast charging cannot take place.
1 = Enable fast charging (will not start
until valid charging conditions are met).
Note: This register is held low and can
only be written to once the fast charge
ready signal has gone high.
Protected by security key.
Enable USB current throttling in fast
charge:
0 = Don't do any current throttling when
fast charging.
1 = Do current throttle while fast
charging.
Protected by security key
Fast charge current limit setting.
0000 = off
0001 = 50mA
0010 = 100mA
… (50mA steps)
1111 = 750mA
Note: Do not set the charger to be more
than 400mA when USB powered.
Protected by security key.
Time between steps when the charger
throttles back due to USB ILIMIT.
00 = 8us
01 = 16us
10 = 32us
11 = 128us
Protected by security key.
DESCRIPTION
PD, March 2010, Rev 4.2
WM8351
161
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