WM8903LGEFK/RV Wolfson Microelectronics, WM8903LGEFK/RV Datasheet - Page 63

• 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

Production Data
OUTPUT SIGNAL PATH
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The outputs HPOUTL and LINEOUTL are derived from the Left Mixer, whilst the HPOUTR and
LINEOUTR are derived from the Right Mixer. These mixers allow the stereo DAC and stereo bypass
signals to be mixed together for the Headphone and Line outputs.
A feedback path for common mode noise rejection is provided at HPGND and LINEGND for the
Headphone and Line outputs respectively. This pin must be connected to ground for normal
operation.
The outputs LOP/LON and ROP/RON are differential line outputs derived from the Left Speaker
mixer and Right Speaker mixer respectively.
Each analogue output can be separately enabled; independent volume control is also provided for
each output. The output signal paths and associated control registers are illustrated in Figure 33.
See “Analogue Outputs” for details of the external connections to these outputs.
Figure 33 Output Signal Path and Control Registers
PD, Rev 4.0, September 2010
WM8903
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