ml7041 Oki Semiconductor, ml7041 Datasheet - Page 22

• Manufacturer Part Number: ml7041
• Description: Audio Codec
• Manufacturer: Oki Semiconductor

CR3 (Side tone and other tone generator gain setting)
The receive side tone generator gain settings shown in Table 4 are referenced to 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 are output at EXTO.
OKI Semiconductor
Initial Value
B7, B6, B5 ......... Side tone path gain setting (refer to Table 3)
B4...................... Tone generator ON/OFF
B3, B2, B1, B0 ... Tone generator gain adjustment for receive side (refer to Table 4)
CR3
DTMF tones (low group):..............................+4 dBm0
DTMF tones (high group) and others tones: . +6 dBm0
DTMF tone (low group): ...............................–2 dBm0
DTMF tone (high group) and other tones:..... 0 dBm0
B3
0
0
0
0
0
0
0
0
B2
0
0
0
0
1
1
1
1
SIDE TONE
GAIN2
B1
0
0
1
1
0
0
1
1
B7
0
Table 4 Receive Side Tone Generator Gain Settings
B0
0
1
0
1
0
1
0
1
SIDE TONE
GAIN1
Tone Generator Gain
B7
0
0
0
0
1
1
1
1
B6
0
Table 3 Side Tone Gain Settings
–34 dB
–32 dB
–30 dB
–28 dB
–26 dB
–24 dB
–22 dB
B6
0
0
1
1
0
0
1
1
OFF
SIDE TONE
GAIN0
B5
B5
0
1
0
1
0
1
0
1
0
0: OFF 1: ON
Side Tone Path Gain
ON/OFF
B3
TONE
1
1
1
1
1
1
1
1
B4
0
–15 dB
–13 dB
–11 dB
B2
–9 dB
–7 dB
–3 dB
–5 dB
0
0
0
0
1
1
1
1
OFF
GAIN3
TONE
B1
0
0
1
1
0
0
1
1
B3
0
B0
0
1
0
1
0
1
0
1
GAIN2
TONE
Tone Generator Gain
B2
0
–20 dB
–18 dB
–16 dB
–14 dB
–12 dB
–10 dB
–8 dB
–6 dB
GAIN1
TONE
B1
0
FEDL7041-04
GAIN0
TONE
ML7041
B0
0
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