WM8352GEB/V Wolfson Microelectronics, WM8352GEB/V Datasheet - Page 78

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

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

WM8352
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13.7.4
The digital audio data is converted to oversampled bit streams in the on-chip 24-bit digital
interpolation filters. The bitstream data enters two multi-bit, sigma-delta DACs, which convert them to
high quality analogue audio signals. The multi-bit DAC architecture reduces high frequency noise and
sensitivity to clock jitter. It also uses a Dynamic Element Matching technique for high linearity and
low distortion.
In normal operation, the left and right channel digital audio data is converted to analogue in two
separate DACs. It is also possible for the DACs to output a mono mix of left and right channels,
using DAC_MONO. Both DACs must be enabled for this mono mix to function.
Table 35 DAC Mono Mix and Phase Invert Select
13.7.5
The DAC digital filter type is selected by the DAC_SB_FILT register bit as shown in Table 36.
Table 36 DAC Filter Selection
R59 (3Bh)
DAC Digital
Control
R48 (30h) DAC
Control
REGISTER
REGISTER
ADDRESS
ADDRESS
DAC OUTPUT PHASE AND MONO MIXING
DAC STOPBAND ATTENUATION
12
BIT
13
BIT
1
0
DAC_MONO
DACL_DATINV
DACR_DATINV
DAC_SB_FILT
LABEL
LABEL
DEFAULT
DEFAULT
0
0
0
0
0 = Normal mode
1 = Sloping stopband mode
Selects DAC filter characteristics
Adds left and right channel and
halves the resulting output to
create a mono output
DAC data left channel polarity
0 = Normal
1 = Inverted
DAC data right channel polarity
0 = Normal
1 = Inverted
DESCRIPTION
DESCRIPTION
PD, March 2010, Rev 4.2
Production Data
78