AK2346B Datasheet, PDF (10/31 Pages) Asahi Kasei Microsystems – Two-way Radio Audio Processor

ASAHI KASEI
[AK2346B]
3) Audio Filter Characteristics
3.1) Emphasis: off, COMPANDOR: off, Scrambler: off
Parameter
Condition
TX overall
characteristics
TXINO to MOD
250Hz
300Hz to 2.0kHz
2.5kHz
Relative value
3.0kHz
to gain at
6.0kHz
1kHz
300Hz to 2.5kHz
3.0kHz
6.0kHz
RX overall
characteristics
RXINO to RXAF
250Hz
300Hz
Relative value 350Hz to 3.0kHz
to gain at 1kHz
6.0kHz
(Design target values)
Min. Typ. Max.
-50
-38
-1.0
+1.0
-1.5
+1.0
-4.0
-1.0
-32
-28
-1.0
+1.0
-1.5
+1.0
-26
-22
-49
-38
-1.5
+1.0
-1.0
+1.0
-38
-28
Units Notes
dB
dB ^SPL=0
fc=2.55K
dB ^SPL=1
fc=3.0K
dB
3.2) Emphasis: on, COMPANDOR: off, Scrambler: off
Parameter
Condition
TX overall
characteristics
TXINO to MOD
250Hz
300Hz
2.5kHz
3.0kHz
Relative value
6.0kHz
to gain at
300Hz
1kHz
2.5kHz
3.0kHz
6.0kHz
RX overall
characteristics
RXINO to RXAF
250Hz
300Hz
Relative value
to gain at 1kHz
3.0kHz
6.0kHz
Min.
-12.5
+6.0
+4.5
-12.5
+6.0
+7.0
+8.5
-11.5
Typ.
-57
-23
-17
-38
-52
Max.
-40
-9.5
+9.0
+8.5
-18
-9.5
+9.0
+10.5
-12
-26
+11.5
-8.5
-40
Units Notes
dB
dB ^SPL=0
fc=2.55K
dB ^SPL=1
fc=3.0K
dB
MS1409-E-00
- 10 -
2012/05