AK2358F Datasheet, PDF (17/26 Pages) Asahi Kasei Microsystems – Base-band LSI for Europian Cordless Telephones(CTI, CTI+)

ASAHI KASEI
d) Frame detection circuit ON/OFF
[AK2358FI
1
The frame detection function is not used (OFF).
o
The frame detection function is used (ON).
Note) FCLN automatically changes from O to 1 when a synchronized frame is detected.
e) Power-down mode
BS2
BS 1
hlode name
Voice system t
transmission MSK
1
1 modeO
OFF
o
1 model
OFF
1
0 mode2
OFF
o
0 mode3
ON
Reception MSK
OFF
OFF
ON
ON
Oscillator
OFF
ON
ON
ON
) RDF/FD selection
FSL
1
The MSK signal reception flag (RDF) is put out from the
RDF/FD pin.
o
The frame detection signal (FD) is ~ut out from the RDF/FD
pin.
2) Control register 2
Address
Al AO D7 D 6
11
TC
EM
, (Default) 1
1
Data
D5 D 4 D3 \ D2 I D1 \ DO
FRPT KEY
VR3
0
1
1
0
0
0
Data name
Function
KEY
Carrier inverting frequency
“1 “: 3.496kHz
“O”: 3.729kHz
F R P T Frame detector detection pattern “l”: 1100010011010110 (base unit)
“o” : 1001001100110110 (portable unit)
EM
Emphasis circuit
“1 “: Passage (ON)
“O”: Bypass (OFF)
TC
COMPANDOR circuit
“1 “: Passage (ON)
I
“O”: BvDass (OFF)
I
3) Volume register
Address
Data
A l AO D 7 D6 D 3 D 4 D 3 D 2 D1 DO
o1
1
1
1
1 RECSW VR42 VR4 I VR40
1 0 VR23 YR22 YR21 VR20 VR13 VR12 \’Rl I VR1O
11
TC
EM f’RPT KEY VR33 VR32 VR31 VR30
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