WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 128

• 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
R37 (25h)
ADC Digital
Volume
Right
Register 25h ADC Digital Volume Right
R38 (26h)
ADC Digital
0
Register 26h ADC Digital 0
w
REGISTER
REGISTER
ADDRESS
ADDRESS
BIT
6:5
BIT
7:0
4
1
0
8
ADC_HPF_CUT[1:0]
ADCR_VOL[7:0] 1100_0000 Right ADC Digital Volume
ADC_HPF_ENA
ADCR_DATINV
ADCL_DATINV
ADCVU
LABEL
LABEL
DEFAULT
DEFAULT
0
00
0
0
0
ADC Volume Update
Writing a 1 to this bit causes left and right ADC
volume to be updated simultaneously
00h = Mute
01h = -71.625dB
02h = -71.250dB
… (0.375dB steps)
C0h = 0dB
… (0.375dB steps)
EFh = +17.625dB
F0h to FFh = +17.625dB
ADC Digital High Pass Filter Cut-Off Frequency
(fc)
00 = Hi-fi mode (fc=4Hz at fs=48kHz)
01 = Voice mode 1 (fc=127Hz at fs=16kHz)
10 = Voice mode 2 (fc=130Hz at fs=8kHz)
11 = Voice mode 3 (fc=267Hz at fs=8kHz)
(Note: fc scales with sample rate fs.)
ADC Digital High Pass Filter Enable
0 = disabled
1 = enabled
Left ADC Invert
0 = Left ADC output not inverted
1 = Left ADC output inverted
Right ADC Invert
0 = Right ADC output not inverted
1 = Right ADC output inverted
DESCRIPTION
DESCRIPTION
PP, Rev 3.1, August 2009
Pre-Production
128