參數(shù)資料
型號(hào): CLRC632
廠商: NXP Semiconductors N.V.
英文描述: Multiple Protocol Contactless Reader IC
中文描述: 多協(xié)議非接觸式讀卡器IC
文件頁數(shù): 157/163頁
文件大小: 948K
代理商: CLRC632
Philips Semiconductors
Product Specification Rev. 3.0; May 2003
Multiple Protocol Contactless Reader IC
CL RC632
157
Confidential
22.5.3 CLOCK FREQUENCY
The clock input is pin 1, OSCIN.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Clock Frequency (checked by the clock filter)
f
OSCIN
13.56
MHz
Duty Cycle of Clock Frequency
d
FEC
40
50
60
%
Jitter of Clock Edges
t
jitter
10
ps
The clock applied to the CL RC632 acts as time basis for the coder and decoder of the synchronous system.
Therefore stability of clock frequency is an important factor for proper performance. To obtain highest
performance, clock jitter shall be as small as possible. This is best achieved using the internal oscillator
buffer with the recommended circuitry (see 12).
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