參數(shù)資料
型號: SM8211M
廠商: Seiko NPC Corporation
英文描述: POCSAG Decoder For Pagers
中文描述: POCSAG碼解碼器尋呼機(jī)
文件頁數(shù): 4/22頁
文件大小: 145K
代理商: SM8211M
SM8211M
NIPPON PRECISION CIRCUITS—4
AC Characteristics
V
DD
= 1.2 to 3.5 V, V
SS
= 0 V, T
a
=
20 to 70
°
C unless otherwise noted
AC timing
1. Internal digital PLL operation is subject to some change.
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
TX-CLK pulsewidth
t
PWTX
13
100
μ
s
TX-CLK pulse cycle
t
CYTX
450
μ
s
TX-DATA setup time
t
STX
1.0
μ
s
TX-DATA hold time
t
HTX
1.0
μ
s
XT pulse frequency
t
CYXT
250 ppm
76.8 or
153.6
+250 ppm
kHz
XT pulse duty cycle
D
XT
25
75
%
BREAK pulsewidth
t
PWBR
13
μ
s
RX-CLK pulse cycle
1
t
CYRX
512 bps
1953
μ
s
1200 bps
833
RX-CLK pulsewidth
1
t
PWRX
512 bps
124
μ
s
1200 bps
52
RX-DATA lead time
1
t
SRX
512 bps
1341
μ
s
1200 bps
573
RX-DATA hold time
1
t
HRX
512 bps
488
μ
s
1200 bps
208
TX-DATA
TX-CLK
RX-CLK
t
PWTX
t
CYTX
t
STX
t
HTX
t
CYRX
t
PWRX
t
HRX
t
SRX
RX-DATA
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