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MSM7586-01/03
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However, the gain of the receive side tone and the gain of the side tones (path from transmit side
to receive side) are set by the CRC3 register.
(4) CRC3 (Side Tone and Tone Generator Gain Adjustment)
B7, B6, B5: ........ Side tone gain adjustment (refer to Table 7)
B4: ..................... Tone generator ON/OFF 0: OFF 1: ON
B3, B2, B1, B0: . Tone generator
Receive side gain adjustment (refer to Table 8)
Table 7: Side Tone Gain Settings
• MSM7586-01
B0
TONE
GAIN0
0
B1
TONE
GAIN1
B2
TONE
GAIN2
B3
TONE
GAIN3
B4
TONE
ON/OFF
B5
Side Tone
GAIN0
B6
Side Tone
GAIN1
B7
Side Tone
GAIN2
0
0
0
0
0
0
0
CRC3
Initial Value
B7
B6
B5
Side Tone Gain
0
0
0
OFF
0
0
1
–21 dB
0
1
0
–19 dB
0
1
1
–17 dB
1
0
0
–15 dB
1
0
1
–13 dB
1
1
0
–11 dB
1
1
1
– 9 dB
• MSM7586-03
B7
B6
B5
Side Tone Gain
0
0
0
OFF
0
0
1
–15 dB
0
1
0
–13 dB
0
1
1
–11 dB
1
0
0
– 9 dB
1
0
1
– 7 dB
1
1
0
– 5 dB
1
1
1
– 3 dB