ml7041 Oki Semiconductor, ml7041 Datasheet - Page 19

• Manufacturer Part Number: ml7041
• Description: Audio Codec
• Manufacturer: Oki Semiconductor

FUNCTIONAL DESCRIPTION
Control Registers
CR0 (Basic operating mode 1)
OKI Semiconductor
CR0
Initial value
B7....... PCM interface companding law select
B6....... Power-on control for output amplifies (SPO+, SPO )
B5....... Power down (entire circuitry)
B4....... Power down (transmit only)
B3....... Power down (receive only)
B2....... Slope filter enable
B1....... Slope filter frequency response select
B0....... PCM interface linear code select
Note: The initial value means a value set when the device is reset by the PDN pin.
ORed with the inverted PDN signal. When using this data, set PDN to “L”.
The control registers are not reset by this signal.
Either CASE1 or CASE2 can be selected in Figure 8.
0: PCM companding law selected by CR0-B7
1: 14-bit linear code (2’s complement)
–10
–12
–14
–2
–4
–6
–8
6
4
2
0
0
SEL
A/
Figure 8 Slope Filter Frequency Characteristics
B7
500
0
SPOUT
PON
1000
B6
0
PDN
1500
ALL
B5
0
Frequency [Hz]
0: Power on 1: Power down
0: Power on 1: Power down
0: Power on 1: Power down
0: Slope filter disable 1: Slope filter enable
0: CASE1 1: CASE2
0: -law 1: A-law
PDN
2000
TX
B4
0
PDN
2500
RX
B3
0
0: Power down 1: Power on
SLP
3000
B2
0
CASE1
CASE2
SLP
SEL
3500
B1
0
FEDL7041-04
LNR
4000
B0
ML7041
0
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