MT93L16AQ Ver la hoja de datos (PDF) - Mitel Networks
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MT93L16AQ Datasheet PDF : 27 Pages
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Preliminary Information
MT93L16
Address:
22h Read
Power Up
Reset 00h
NBS
NB
DT
NLPDC
-
HWLNG
ACMUND
-
Acoustic Echo Canceller Status Register (ASR) (* Do not write to this register)
7-
MSB
6 ACMUND 5 HWLNG 4 -
3 NLPDC 2 DT
1 NB
0 NBS
LSB
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
LOGICAL OR of the status bit NBS + NBR from LSR Register
When high the Double Talk is detected and when low, the Double talk is not detected
When high, the NLP is activated and when low the NLP is not activated
RESERVED.
When high, Howling is occurring in the loop and when low, no Howling is detected
When high, No active signal in the Rin/Rout path
RESERVED.
Address:
02h Read
Power Up
Reset 00h
NBR
NB
DT
NLPC
-
-
-
--
Line Echo Canceller Status Register (LSR) (* Do not write to this register)
-
6-
5-
4-
3 NLPC 2 DT
1 NB
0 NBR
LSB
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
This bit indicates a LOGICAL-OR of Status bits NBR + NBS (from ASR Register)
When high, double-talk is detected and when low double-talk is not detected
When high, NLP is activated and when low NLP is not activated
RESERVED.
.
Address:
20h R/W
Power Up
Reset 6Dh
G0
G1
G2
G3
-
-
-
-
7-
MSB
6-
Receive Gain Control Register (RGC)
5-
4-
3 G3
2 G2
1 G1
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.
RESERVED
0 GO
LSB
Gain Values for Receive Gain Control Register Bit G3 to G0 (RGC)
0h
-24dB
1h
-21dB
2h
-18dB
3h
-15dB
4h
-12dB
5h
-9 dB
6h
-6 dB
7h
-3 dB
8h
0 dB
9h
+ 3 dB
Ah
+ 6 dB
Bh
+9 dB
Ch
+12 dB
Dh
+ 15 dB
Eh
+ 18 dB
Fh
+ 21 dB
19
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