hbwhelp@micrel.com or (408) 955-1690 10 AC Electrical" />
參數(shù)資料
型號: SY89538LHZ TR
廠商: Micrel Inc
文件頁數(shù): 2/23頁
文件大?。?/td> 0K
描述: IC SYNTHESIZR LVPECL/LVDS 64TQFP
標(biāo)準(zhǔn)包裝: 1,000
系列: Precision Edge®
類型: 時鐘合成器/扇出緩沖器
PLL:
輸入: CMOS,HSTL,LVDS,LVPECL,LVTTL,SSTL,晶體
輸出: LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 3:7
差分 - 輸入:輸出: 是/是
頻率 - 最大: 756MHz
除法器/乘法器: 是/無
電源電壓: 2.375 V ~ 3.6 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 64-EP-TQFP
包裝: 帶卷 (TR)
其它名稱: SY89538LHZTR
SY89538LHZTR-ND
Micrel, Inc.
SY89538L
January 2008
M9999-010808-E
hbwhelp@micrel.com or (408) 955-1690
10
AC Electrical Characteristics
VCCA = VCCD = +3.3V ±10%; VCCO = +2.5V ±5% or +3.3V ±10%, RL (LVDS) = 100 across the output pairs, RL
(LVPECL) = 50 into VCCO–2V; TA = –40°C to +85°C, unless otherwise stated.
Symbol
Parameter
Condition
Min
Typ
Max
Units
XTAL Input Frequency Range
Note 7
14
18
MHz
Reference Input Frequency Range
See Table 8
9.325
756
MHz
fIN
Zero Delay Input Frequency Range
See Table 9
29.375
756
MHz
INSEL = LOW
9.325
94.5
MHz
fREF
Phase Detector Operating
Frequency Range
INSEL = HIGH
14
18
MHz
fOUT
Output Frequency Range
29.375
756
MHz
fVCO
Internal VCO Frequency Range
2352
3024
MHz
tSKEW
Output-to-Output
Note 8
15
75
ps
tLOCK
Minimum PLL Lock Time
10
ms
Loop Filter Optimized for Cycle-to-Cycle Jitter
R = 50
C1 = 0.47F
C2 = 1000pF
Note 9
4
6
psRMS
Note 9
5
14
psRMS
Note 10
80
150
psPP
1-Sigma Cycle-to-Cycle Jitter (XTAL Input)
1-Sigma Cycle-to-Cycle Jitter (RFCK Reference)
Total Jitter
Spur
-35
dBc@
fphase
tJITTER
XTAL/RFCK Crosstalk-Induced Jitter
Note 11
0.7
psRMS
BW
PLL Bandwidth
See Table 10
14 ≤ fREF ≤ 18
11.1
38.4
kHz
tDC
FOUT Duty Cycle
43
50
57
%
tr, tf
Output Rise/Fall Time (20% to 80%)
LVPECL
100
250
400
ps
Output Rise/Fall Time (20% to 80%)
LVDS
80
150
300
ps
tPW_SYNC_MIN
Minimum SYNC Pulse Width
See “Synchronization”
section
8
Internal
clock
cycle
tPD_SYNC
Synchronization Delay
See “Synchronization”
section
8
Internal
clock
cycle
Notes:
7.
Fundamental mode, series resonant crystal.
8.
The output-to-output skew is defined as the worst-case difference between any outputs within a single device operating at the same voltage
and temperature.
9.
Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, Tn – Tn-1 where T is the time between rising edges of the
output signal.
10. Total jitter definition: with an ideal clock input of frequency <fMAX, no more than one output edge in 10
12 output edges will deviate by more
than the specified peak-to-peak jitter value.
11. Crosstalk is measured at the output while applying two similar differential clock frequencies that are asynchronous with respect to each
other at the inputs.
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