AK2347B Datasheet, PDF (13/34 Pages) Asahi Kasei Microsystems – Two-way Radio Audio & Sub-Audio Processor

ASAHI KASEI
[AK2347B]
4) Scrambler Characteristics
4.1) Scrambler: on, Emphasis: off, Compandor: off, MCKSL=1, SCSL=0/1…3.388kHz
MCKSL=0, SCSL=0 …3.290kHz
Parameter
Condition
Min.
Typ.
Max. Units
Carrier frequency
3.388
3.290
kHz
Modulated output
TXINO to MOD, RXINO to RXOUT
Input level 1.0kHz -10dBx
-12
-10
-8
dBx
Measuring-freq. 2.388kHz (3.388kHz)
Measuring-freq. 2.290kHz (3.290kHz)
High frequency
rejection
Carrier signal
leakage
Original signal
leakage
TXINO to MOD, RXINO to RXOUT
Input level 1.0kHz -10dBx
Measuring-freq. 4.388kHz (3.388kHz)
Measuring-freq. 4.290kHz (3.290kHz)
TXINO to MOD, RXINO to RXOUT
Input level No signal
Measuring-freq. 3.388kHz
Measuring-freq. 3.290kHz
TXINO to MOD, RXINO to RXOUT
Input level 1.0kHz -10dBx
Measuring-freq. 1.0kHz
-50
dBx
-50
dBx
-50
dBx
Remarks
4.2) Scrambler: on, Emphasis: off, Compandor: off, MCKSL=0, SCSL=1
Parameter
Condition
Min.
Typ.
Carrier frequency
3.390
Modulated output
High frequency
rejection
Carrier signal
leakage
Original signal
leakage
TXINO to MOD, RXINO to RXOUT
Input level 1.0kHz -10dBx
-12
-10
Measuring-freq. 2.390kHz
TXINO to MOD, RXINO to RXOUT
Input level 1.0kHz -10dBx
Measuring-freq. 4.390kHz
TXINO to MOD, RXINO to RXOUT
Input level No signal
Measuring-freq. 3.390kHz
TXINO to MOD, RXINO to RXOUT
Input level 1.0kHz -10dBx
Measuring-freq. 1.0kHz
(Design target values)
Max.
Units Remarks
kHz
-8
dBx
-50
dBx
-50
dBx
-25
dBx
MS1419-E-00
- 13 -
2012/05