WM8352GEB/V Wolfson Microelectronics, WM8352GEB/V Datasheet - Page 327

Audio CODECs Audio CODEC plus pwr management

WM8352GEB/V

Manufacturer Part Number
WM8352GEB/V
Description
Audio CODECs Audio CODEC plus pwr management
Manufacturer
Wolfson Microelectronics
Datasheet

Specifications of WM8352GEB/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
Production Data
w
When selecting a suitable output inductor, the inductance value and the saturation current must be
compatible with the operating conditions of the converter.
The magnitude of the inductor current ripple is dependant on the inductor value and can be
determined by the following equation:
As a minimum requirement, the DC current rating should be equal to the maximum load current plus
one half of the inductor current ripple:
To be suitable for the application, the chosen inductor must have a saturation current that is higher
than the peak inductor current given by the above equation. To maximise the converter efficiency,
the inductor should also have a low DC Resistance (DCR), resulting in minimum conduction losses.
Care should also be taken to ensure that the inductor is effective at the applicable operating
temperature.
Wolfson recommends the following external components for use with DC-DC Converters 1 and 6.
Note that the choice of output capacitor should be determined as described above.
Table 156 Recommended External Components - DC-DC1 and DC-DC6
Wolfson recommends the following external components for use with DC-DC Converters 3 and 4.
Table 157 Recommended External Components - DC-DC3 and DC-DC4
COMPONENT
COMPONENT
C
C
C
C
OUT
OUT
L
L
IN
IN
VALUE
VALUE
100μF
2.2μH
2.2μH
4.7μF
4.7μF
10μF
22μF
47μF
10μF
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PART NUMBER
PART NUMBER
PD, March 2010, Rev 4.2
WM8352
SIZE
0805
0805
1206
1206
0603
SIZE
1206
0805
0603
327

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