參數(shù)資料
型號： MT93L16
廠商： Mitel Networks Corporation
英文描述： Low-Voltage Acoustic Echo Canceller(低電壓回聲消除器)
中文描述： 低電壓聲回波消除器（低電壓回聲消除器）
文件頁數(shù)： 19/27頁
文件大?。?/td> 118K
代理商： MT93L16
Preliminary Information
MT93L16
19
Gain Values for Receive Gain Control Register Bit G3 to G0 (RGC)
Address:
22h Read
Acoustic Echo Canceller Status Register
(ASR)
(
* Do not write to this register
)
Power Up
Reset 00h
NBS
When high, the Narrowband signal has been detected in the Sin/Sout path and when low, the Narrowband signal has not
been detected in the Sin/Sout path
NB
LOGICAL OR of the status bit NBS + NBR from LSR Register
DT
When high the Double Talk is detected and when low, the Double talk is not detected
NLPDC
When high, the NLP is activated and when low the NLP is not activated
-
RESERVED.
HWLNG
When high, Howling is occurring in the loop and when low, no Howling is detected
ACMUND
When high, No active signal in the Rin/Rout path
-
RESERVED.
Address:
02h Read
Line Echo Canceller Status Register
(LSR)
(
* Do not write to this register
)
Power Up
Reset 00h
NBR
When high, a narrowband signal has been detected in the Receive (Rin) path. When low no narrowband signal is not
detected in the Rin path
NB
This bit indicates a LOGICAL-OR of Status bits NBR + NBS (from ASR Register)
DT
When high, double-talk is detected and when low double-talk is not detected
NLPC
When high, NLP is activated and when low NLP is not activated
-
RESERVED.
.
-
-
--
Address:
20h R/W
Receive Gain Control Register
(RGC)
Power Up
Reset 6Dh
G0
User Gain Control on the Rin/Rout path (Tolerance of gains: +/- 0.15 dB).
The hexadecimal number represents G3 to G0 value in the table below.
G1
G2
G3
-
RESERVED
-
-
-
0h
-24dB
4h
-12dB
8h
0 dB
Ch
+12 dB
1h
-21dB
5h
-9 dB
9h
+ 3 dB
Dh
+ 15 dB
2h
-18dB
6h
-6 dB
Ah
+ 6 dB
Eh
+ 18 dB
3h
-15dB
7h
-3 dB
Bh
+9 dB
Fh
+ 21 dB
7
6
5
0
4
3
1
2
-
ACMUND
HWLNG
-
NLPDC
DT
NB
NBS
LSB
MSB
7
6
5
0
4
3
1
2
LSB
MSB
-
GO
G1
G2
G3
-
-
-
6
5
0
4
3
1
2
LSB
-
NBR
NB
DT
NLPC
-
-
-
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