msm7716p Oki Semiconductor, msm7716p Datasheet - Page 17

• Manufacturer Part Number: msm7716p
• Description: Single Rail Linear Codec
• Manufacturer: Oki Semiconductor

FUNCTIONAL DESCRIPTION
Control Data Description
SW1, SW2······Control bits for the transmit speech path switch.
SW3, SW4······Control bits for the receive speech path switch.
DA: DA converter output.
VOL1, VOL2, VOL3········Control bits for the receive signal output level.
OKI Semiconductor
State
T1
T2
T3
T4
VOL1
State
R1
R2
R3
R4
0
0
0
0
1
1
1
1
SW
2
0
0
1
1
VOL2
SW4
The AD converter input is selected according to the bit data shown in Table 2.
The control should be performed according to Table 3.
0
0
1
1
0
0
1
1
0
0
1
1
SW
1
0
1
0
1
No signal (muting state)
Addition signal of both
VOL3
SW3
Input signal to MAIN
Input signal to PBIN
AD Converter Input
0
1
0
1
0
1
0
1
0
1
0
1
MAIN and PBIN
By controlling these bits, the output levels of VFO and AUXO can be controlled
according to Table 4.
SG: signal ground voltage.
AOUT+, AOUT– Output
PWI
PWI
SG
SG
Receive Signal Gain
Effective
Effective
Output
MAO
Table 2
Table 3
Table 4
SG
SG
–12 dB
–16 dB
–20 dB
–24 dB
–28 dB
–4 dB
–8 dB
0 dB
Effective
Effective
Output
PBO
SG
SG
AUXO Output
SG
SG
DA
DA
The gain of each input drops by 6dB
At initial setting
Remarks
At initial setting
—
—
Remarks
At initial setting
—
—
—
—
—
—
—
Remarks
FEDL7716P-01
—
—
—
MSM7716P
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