lm49370rl National Semiconductor Corporation, lm49370rl Datasheet - Page 54

• Manufacturer Part Number: lm49370rl
• Description: Audio Sub-system With An Ultra Low Emi, Spread Spectrum, Class D Loudspeaker Amplifier, A Dual-mode Stereo Headphone Amplifier, And A Dedicated Pcm Interface For Bluetooth Transceivers
• Manufacturer: National Semiconductor Corporation

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12.37 SRC CONFIGURATION REGISTER
This register is used to control the configuration of the Digital Routing interfaces. (Note 33)
Note 33: Please refer to the Application Note AN-1591 for the detailed discussion on how to use the I
Bits
2:1
4:3
7:6
0
5
MONO_SUM_MODE
MONO_SUM_SEL
DAC_INPUT_SEL
PCM_TX_SEL
I2S_TX_SEL
Field
This controls the data sent to the PCM transmitter.
This controls the data sent to the I
This controls the data sent to the DAC.
DAC_INPUT_SEL
This controls the data sent to the Stereo to Mono Converter
This controls the operation of the Stereo to Mono Converter.
MONO_SUM_ MODE
TABLE 37. Bridges (0x1Eh)
MONO_SUM_SEL
PCM_TX_SEL
I2S_TX_SEL
00
01
10
11
00
01
10
11
00
01
10
11
0
1
0
1
2
2
2
2
2
2
2
2
2
2
2
2
54
2
S transmitter.
Description
2
S to PCM Bridge.
DAC Interpolator (oversampled)
PCM Receiver (Dual Mono)
DAC Interpolated Output
I2S Receiver (In stereo)
I2S Receiver Output
MONO SUM Circuit
(Left + Right)/2
(Left + Right)/2
PCM Receiver
Operation
Disabled
Disabled
Source
Source
Source
Source
Right
ADC
ADC
ADC
Left