msm7503 Oki Semiconductor, msm7503 Datasheet - Page 34

• Manufacturer Part Number: msm7503
• Description: Multi-function Pcm Codec
• Manufacturer: Oki Semiconductor

Gain control (transmit hold tone, PB tone, microphone input, handset input)
WRITE Mode
Address Data
DB7
0
DB6 DB5 DB4 DB3 DB2 DB1 DB0
1
0
Control Data
AD1 = 0, AD0 = 1
0
1
—
—
0
0
1
1
0
0
1
1
—
—
0
1
0
1
0
1
0
1
0
0
1
1
0
0
1
1
—
—
0
1
0
1
0
1
0
1
Typical transmit hold tone gain (–2 dB)
Typical transmit PB tone gain (+4 dB)
Typical handfree input gain (+20 dB)
Typical handset input gain (+12 dB)
–3 dB with respect to the typical gain
–6 dB with respect to the typical gain
–9 dB with respect to the typical gain
–3 dB with respect to the typical gain
–6 dB with respect to the typical gain
–9 dB with respect to the typical gain
–6 dB with respect to the typical gain
–9 dB with respect to the typical gain
–3 dB with respect to the typical gain
–6 dB with respect to the typical gain
–9 dB with respect to the typical gain
Description for Control
—
Transmit hold tone gain = VOL3
Transmit PB tone gain = VOL4
At the initial setting, the typical gain is set.
Handfree input gain = VOL9
Handset input gain = VOL8
At the initial setting, the typical gain is set.
Hold tone gain and PB tone
gain are set at a time.
Handfree input gain and handset Input
gain are set at a time.
Remarks