AK2347B Datasheet, PDF (20/34 Pages) Asahi Kasei Microsystems – Two-way Radio Audio & Sub-Audio Processor

ASAHI KASEI
[AK2347B]
2.2) Control register 2
Address
Data
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
1
TC
EM PCONT SPL SCSL LMT HPF SASW
When power-down
1
1
1
1
0
1
1
1
Data
TC
SPL
SCSL
LMT
HPF
SASW
Function
Item
0
1
Compandpr
OFF (Bypass)
ON (Active)
Splatter
Cut-off frequency
Scrambler carrier
frequency
MCKSL is set to 0
2.55kHz
3.290kHz
3.0kHz
3.390kHz
MCKSL is set to 1
3.388kHz
3.388kHz
Limiter
TX/RX HPF
Sub-Audio
operation
OFF (Bypass)
OFF (Bypass)
DIN pin → TSAOUT pin
ON (Active)
ON (Active)
RXIN pin → RSAOUT pin
Remarks
EM PCONT
1
1
0
1
0/1
0
Function
Emphasis: ON (Active), Scrambler/Descrambler: OFF (Bypass)
Emphasis: OFF (Bypass), Scrambler/Descrambler:OFF (Bypass)
Emphasis: OFF (Bypass), Scrambler/Descrambler:ON (Active)
Remarks
MS1419-E-00
- 20 -
2012/05