lm4935rlx National Semiconductor Corporation, lm4935rlx Datasheet - Page 45

• Manufacturer Part Number: lm4935rlx
• Description: Audio Sub-system With Dual-mode Stereo Headphone And Mono High Efficiency Loudspeaker Amplifiers And Multi-purpose Adc
• Manufacturer: National Semiconductor Corporation

Bits
12.0 Status & Control Registers
12.23 CP_OUTPUT CONFIGURATION REGISTER
This register is used to control the differential cell phone output. (Note 24)
Note 24: The gain of cell phone output amplifier is 0 dB.
0
1
2
3
4
MIC_NOISE_GATE
RIGHT_SELECT
LEFT_SELECT
MIC_SELECT
CPO_MUTE
Field
If set the microphone channel of the mixer is added to the cellphone output signal.
If set the right channel of the mixer is added to the cellphone output signal.
If set the left channel of the mixer is added to the cellphone output signal.
If set the CPOUT output is muted.
If this is set and NOISE_GATE_ON (register 0x08h) is enabled, the MIC to CPO path will be
gated if the signal is determined to be noise by the AGC (that is, if the signal is below the set
noise threshold).
TABLE 24. CP_OUTPUT (0x12h)
(Continued)
45
Description
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