msm7728 Oki Semiconductor, msm7728 Datasheet - Page 18

• Manufacturer Part Number: msm7728
• Description: Single Rail Linear Codec
• Manufacturer: Oki Semiconductor

CR4 - - - PB tone control
¡ Semiconductor
CR5 - - - Service tone control
A2 A1 A0 B4 B3 B2 B1 B0
1
A2
1
0
A1
0
1
1
1
1
1
1
1
1
1
1
0
A0
0
0
0
0
0
0
0
1
1
1
0
B4
0
0
0
1
1
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
1
0
0
1
0
1
1
0
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1 B 1h
0 B 2h
0 B 4h
1 B 5h
0 B 6h
1 B 9h
0 B Ah
1 B Bh
0 A 0h
Code
B 0h
HEX
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
Above tones stop
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
400Hz/16Hz
400Hz/16Hz
400Hz/16Hz
Frequency
1000Hz
2000Hz
400Hz
400Hz
400Hz
400Hz
Code
9 Dh
9 0h
9 1h
9 2h
9 3h
9 4h
9 5h
9 6h
9 7h
9 8h
9 9h
9 Ah
9 Bh
9 Ch
9 Eh
8 0h
HEX
9 Fh
PBtone 697Hz, 1209Hz
PBtone 697Hz, 1336Hz
PBtone 697Hz, 1477Hz
PBtone 697Hz, 1633Hz
PBtone 770Hz, 1209Hz
PBtone 770Hz, 1336Hz
PBtone 770Hz, 1477Hz
PBtone 770Hz, 1633Hz
PBtone 852Hz, 1209Hz
PBtone 852Hz, 1336Hz
PBtone 852Hz, 1477Hz
PBtone 852Hz, 1633Hz
PBtone 941Hz, 1209Hz
PBtone 941Hz, 1336Hz
PBtone 941Hz, 1477Hz
PBtone 941Hz, 1633Hz
PBtone OFF
Continuous
Continuous
Continuous
Make Time
0.125sec 0.125sec
0.032sec 0.032sec
0.25sec
Function
0.5sec
0.5sec
1sec
Intermittent Time (Note1)
Break Time1 Break Time2
0.25sec
0.5sec
2sec
—
—
—
•
Output destination of
PB tone:
EAR
SPKP
SPKN
PB OFF after reset is
released
—
—
—
—
—
—
—
—
—
Remarks
MSM7728
Output
destination
of PB tone:
EAR
SPKP
SPKN
Remarks
18/23