ASAHI KASEI
[AK2346B]
2) MSK Modulator Timing
Parameter
Symbol
T1
Min.
Typ.
Max.
Units
us
208.3
416.7
416.7
833.3
TXSW2 Falling to TCLK Rising MSKSL=”0”
MSKSL=”1”
TCLK Period
MSKSL=”0”
MSKSL=”1”
T2
T3
us
TXSW2 Rising to TXSW1 Falling
2
ms
TDATA Set up time
TDATA Hold time
TDATA Hold time2
TS
TH
TH2
1
1
2
us
TCLK
TXSW 1
Register data
T3
T1
T2
TXSW 2
TDATA
TH2
T S
TH
(MSKSL=”0”)
MOD
Audio Signal
Audio Signal
(MSKSL=”1”)
Note: The timing of setting the internal registers TXSW1 and TXSW2 is synchronized with the falling
edge of DIR pin.
3) MSK Demodulator Timing
Parameter
Symbol
T
Min.
Typ.
Max.
Units
us
RCLK Period and FD pulse width
MSKSL=”0”
MSKSL=”1”
RDF Falling to SCLK Falling time
SCLK Rising to RDF Falling time
416.7
833.3
tj
tk
100
600
ns
MS1409-E-00
2012/05
- 21 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
