msm7586-01 Oki Semiconductor, msm7586-01 Datasheet - Page 37

• Manufacturer Part Number: msm7586-01
• Description: Shift Qpsk Modem/adpcm Codec
• Manufacturer: Oki Semiconductor

¡ Semiconductor
• MSM7586-01
• MSM7586-03
The receive side tone generator gain settings shown in Table 8 are set with the following levels
as a reference.
For example, if the tone generator gain set value is set to -6 dB (B3, B2, B1, B0)=(1, 1, 1, 1), then
tones at the following levels appear at the SAO or VFRO pin.
B3
B3
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
DTMF tones (low group): ................................. –2 dBm0
DTMF tones (high group) and other tones: ... 0 dBm0
DTMF tones (low group): ................................. –8 dBm0
DTMF tones (high group) and other tones: ... –6 dBm0
B2
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Table 8: Receive Side Tone Generator Gain Settings
B0
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Tone Generator Gain
Tone Generator Gain
–34 dB
–32 dB
–30 dB
–28 dB
–26 dB
–24 dB
–22 dB
–36 dB
–34 dB
–32 dB
–30 dB
–28 dB
–26 dB
–24 dB
–22 dB
OFF
B3
B3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B2
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
B1
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
B0
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Tone Generator Gain
Tone Generator Gain
MSM7586-01/03
–20 dB
–18 dB
–16 dB
–14 dB
–12 dB
–10 dB
– 8 dB
– 6 dB
–20 dB
–18 dB
–16 dB
–14 dB
–12 dB
–10 dB
– 8 dB
– 6 dB
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