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