WM8352GEB/V Wolfson Microelectronics, WM8352GEB/V Datasheet - Page 142
WM8352GEB/V
Manufacturer Part Number
WM8352GEB/V
Description
Audio CODECs Audio CODEC plus pwr management
Manufacturer
Wolfson Microelectronics
Datasheet
1.WM8352GEBV.pdf
(335 pages)
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
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WM8352
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14.8.3
DC-DC Converters 2 and 5 are versatile step-up pulse-width-modulated (PWM) DC-DC converters
designed to deliver high power efficiency across full load conditions. The converters can also be
used as switches.
DC-DC Converters 2 and 5 are designed with a fixed frequency current mode architecture. The clock
frequency is set by the internal RC oscillator, which provides a 1.0MHz clock.
The PVDD supply pin provides the core supply for DC-DC Converter 2. The LINEDCDC supply pin
provides the core supply for DC-DC Converter 5.
The connections to DC-DC Converter 2 in Constant Voltage Mode are illustrated in Figure 70. The
equivalent circuit applies to DC-DC Converter 5 also. See Section 29.4 for details of the connections
for the Constant Current and USB operating modes of the DC-DC Step-Up Converters.
Figure 70 Step-Up DC-DC Converter Connections
The external components at the converter output are required by the DC-DC Converter integral loop
compensation circuit. Note that the recommended output capacitor Cout varies according to the
required output voltage.
See Section 29.4 for details of the recommended external components.
DC-DC STEP UP CONVERTERS
PD, March 2010, Rev 4.2
Production Data
142
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