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ACE9040 датащи(PDF) 19 Page - Mitel Networks Corporation

номер детали ACE9040
подробное описание детали  Audio Processor Advance Information
PDF  33 Pages
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производитель  MITEL [Mitel Networks Corporation]
домашняя страница  http://www.mitel.com
Logo MITEL - Mitel Networks Corporation

ACE9040 датащи(HTML) 19 Page - Mitel Networks Corporation

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19
ACE9040
CONTROL BUS: HANDSFREE MODE
Data bit
Bit Name
Function
Effect when
Effect when
at 0
at 1
DATA3:
[0]
DATA3[0]
Bus Mode Select
Must be “1”
Must be “1”
[1]
DATA3[1]
Bus Mode Select
Must be “1”
Must be “1”
[4:2]
THF[2:0]
Transmit Handsfree Gain
see table 18
see table 18
[7:5]
RHF[2:0]
Receive Handsfree Gain
see table 18
see table 18
DATA2:
[0]
HFP
Handsfree Rectifiers Power
Off
On
[1]
HFS
HF Output Connection Path
Transmit
Receive
[2]
MIG
Microphone Amplifier Gain
+ 22 dB
+ 32 dB
[4:3]
not used
-
-
-
[5]
AMPS
Cellular System Select
‡
AMPS‡
[6]
not used
-
-
-
[7]
-
-
must be "0"
must be "0"
DATA1:
[2:0]
-
-
must be "0"
must be "0"
[5:3]
not used
-
-
-
[7:6]
not used
-
-
-
THF[2]
THF[1]
THF[0]
Gain
RHF[2]
RHF[1]
RHF[0]
(dB)
00
0
0
00
1
– 7
01
0
– 14
01
1
– 21
10
0
– 28
10
1
– 35
11
0
– 42
11
1
– 49
Table 18 TXHFGAIN and RXHFGAIN Handsfree Attenuator
Nominal Gains, set by THF[2:0] and RHF[2:0].
‡See table 19.
Table 17 “Handsfree Mode”, DATA3[1:0] = 11.



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