CS4245-CQZR Cirrus Logic Inc, CS4245-CQZR Datasheet - Page 43

• Manufacturer Part Number: CS4245-CQZR
• Description: IC,Soundcard Circuits,QFP,48PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

DS656F2
6.3.4
6.3.5
6.4
6.4.1
ADC_FM1
7
ADC Control - Address 04h
De-Emphasis Control (Bit 1)
Function:
The standard 50/15 μs digital de-emphasis filter response,
rate of 44.1 kHz when the DeEmph bit is configured as shown in
only in Single-Speed Mode.
DAC Master / Slave Mode (Bit 0)
Function:
This bit selects either master or slave operation for serial audio port 2. Setting this bit will select Master
Mode, while clearing this bit will select Slave Mode.
ADC Functional Mode (Bits 7:6)
Function:
Selects the required range of output sample rates.
ADC_FM1
ADC_FM0
0
0
1
1
6
ADC_FM0
0
1
0
1
Reserved
-10dB
Gain
0dB
5
dB
DeEmph
Single-Speed Mode: 4 to 50 kHz sample rates
Double-Speed Mode: 50 to 100 kHz sample rates
Quad-Speed Mode: 100 to 200 kHz sample rates
Reserved
Table 9. Functional Mode Selection
0
1
Figure 20. De-Emphasis Curve
Table 8. De-Emphasis Control
ADC_DIF
3.183 kHz
T1=50 µs
4
F1
44.1 kHz de-emphasis
Disabled (default)
Description
Reserved
10.61 kHz
3
F2
Mode
Figure
T2 = 15 µs
Table
Frequency
MuteADC
20, may be implemented for a sample
2
8. NOTE: De-emphasis is available
HPFFreeze
1
ADC_M/S
CS4245
0
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