WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 94

• Manufacturer Part Number: WM8903LGEFK/RV
• Description: Audio CODECs ULTRA LOW PWR HI FI CODEC
• Manufacturer: Wolfson Microelectronics

Specifications of WM8903LGEFK/RV

• Audio Codec Type: Stereo Codec
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 6
• No. Of Output Channels: 8
• Adc / Dac Resolution: 24bit
• Sampling Rate: 96kHz
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Adcs / Dacs Signal To Noise Ratio: 96dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8903
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Figure 53 μ-Law Companding
Figure 54 A-Law Companding
LOOPBACK
Setting the LOOPBACK register bit enables digital loopback. When this bit is set, the ADC digital
data output is routed to the DAC digital data input path. The digital audio interface input (DACDAT) is
not used when LOOPBACK is enabled.
Table 60 Loopback Control
R24 (18h)
Audio
Interface 0
REGISTER
ADDRESS
120
100
120
100
80
60
40
20
80
60
40
20
0
0
0
0
0.1
BIT
8
0.2
0.2
LOOPBACK
0.3
LABEL
u-law Companding
A-law Companding
0.4
Normalised Input
0.4
Normalised Input
0.5
DEFAULT
0.6
0.6
0
0.7
Digital Loopback Function
0 = No loopback
1 = Loopback enabled (ADC data
output is directly input to DAC data
input)
0.8
0.8
PD, Rev 4.0, September 2010
DESCRIPTION
0.9
1
1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Production Data
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