SM8211M Datasheet, PDF (4/22 Pages) Nippon Precision Circuits Inc – POCSAG Decoder For Pagers

SM8211M
AC Characteristics
V_DD = 1.2 to 3.5 V, V_SS = 0 V, T_a = −20 to 70 °C unless otherwise noted
Parameter
Symbol
Condition
TX-CLK pulsewidth
TX-CLK pulse cycle
TX-DATA setup time
TX-DATA hold time
t_PWTX
t_CYTX
t_STX
t_HTX
XT pulse frequency
t_CYXT
XT pulse duty cycle
BREAK pulsewidth
RX-CLK pulse cycle¹
RX-CLK pulsewidth¹
RX-DATA lead time¹
RX-DATA hold time¹
D_XT
t_PWBR
t_CYRX
t_PWRX
t_SRX
t_HRX
512 bps
1200 bps
512 bps
1200 bps
512 bps
1200 bps
512 bps
1200 bps
1. Internal digital PLL operation is subject to some change.
Rating
Unit
min
typ
max
13
–
100
µs
450
–
–
µs
1.0
–
–
µs
1.0
–
–
µs
−250 ppm
76.8 or
153.6
+250 ppm
kHz
25
–
75
%
13
–
–
µs
–
1953
–
µs
–
833
–
–
124
–
µs
–
52
–
–
1341
–
µs
–
573
–
–
488
–
µs
–
208
–
AC timing
TX-CLK
TX-DATA
RX-CLK
RX-DATA
t _PWTX
t _CYTX
t _STX
t _HTX
t _CYRX
t _PWRX
t _SRX
t _HRX
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