AK2363 Datasheet, PDF (13/33 Pages) Asahi Kasei Microsystems – Radio Signaling LSI

ASAHI KASEI
[AK2363]
3) MSK Modulator timing
Parameter
Symbol
Min.
Typ.
Max.
Unit
CSN rising to TCLK falling
MSKSL = 0
T₁
208
ms
MSKSL = 1
417
TCLK period
MSKSL = 0
T₂
417
ms
MSKSL = 1
833
TDATA set up time
t_S
1
TDATA hold time
t_H
1
ms
TDATA hold time2
t_H2
2
CSN
SCLK
SDATA
(Input) _{Mode 2,4,6 T1}
T2
MSKTX=0
TCLK
TDATA
tS
tH
tH2
1
0
1
1
MOD
MOD
MSKSL=”0”
2400bit/s
MSKSL=”1”
1200bit/s
1200Hz
1200Hz
2400Hz
1800Hz
Note Register setting is synchronized with the rising edge on the CSN pin.
When the data is maintained for 2ms or longer specified by TDATA hold time2 (t_H2), the signal from
MOD pin is ended in zero cross point.
4) MSK Demodulator timing
Parameter
RCLK period and FD pulse width
MSKSL = 0
MSKSL = 1
Symbol
T
Condition
Min. Typ. Max. Unit
417
ms
833
MS0583-E-01
- 13 -
2008/06