f
參數(shù)資料
型號: SY69952ZH TR
廠商: Micrel Inc
文件頁數(shù): 7/8頁
文件大?。?/td> 0K
描述: IC TXRX CLOCK RECOVERY 28-SOIC
標(biāo)準(zhǔn)包裝: 1,000
類型: 時鐘和數(shù)據(jù)恢復(fù)(CDR),多路復(fù)用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,ATM 應(yīng)用
輸入: PECL
輸出: PECL
電路數(shù): 1
比率 - 輸入:輸出: 1:3
差分 - 輸入:輸出: 是/是
頻率 - 最大: 155.52Mbps
電源電壓: 4.75 V ~ 5.25 V
工作溫度: 0°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 28-SOIC
包裝: 帶卷 (TR)
其它名稱: SY69952ZHTR
SY69952ZHTR-ND
SY69952
7
Micrel, Inc.
M9999-062805
hbwhelp@micrel.com or (408) 955-1690
Symbol
Parameter
Min.
Typ.
Max.
Units
Condition
fREF
Reference Frequency
6.41
6.48
6.55
MHz
MODE = 0
19.24
19.44
19.64
MHZ
MODE = 1
fB
Bit Time(1)
19.5
19.3
19.1
ns
MODE = 0
6.50
6.43
6.36
ns
MODE = 1
tODC
Output Duty Cycle(2)
48
52
%
(TCLK±, RCLK±)
tRF
ECL Output Rise/Fall Tiime(2)
0.4
1.2
ns
5pf load, 50
to VCC –2 (20% to 80%)
tLOCK
PLL Lock Time(2)
1
s
RIN transition density 25%
tRPWH
REFCLK Pulse Width High
3.3
ns
MODE = 0
10
ns
MODE = 1
tRPWL
REFCLK Pulse Width Low
3.3
ns
MODE = 0
10
ns
MODE = 1
tDV
Data Valid
3
ns
Prior to RCLK+ rising edge
tDH
Data Hold
1
ns
After RCLK+ rising edge
tPD
Propagation Delay(3)
——
10
ns
(RIN to ROUT, TSER to TOUT)
VCC = +5V ±5%; VEE = GND = 0V, TA = 0°C to +85°C
AC ELECTRICAL CHARACTERISTICS
NOTES:
1. fB is calculated as 1/(fREF * 8).
2. Tested initially and after any design or process changes that may affect these parameters.
3. The ECL switching threshold is the differential zero crossing (ie, the point where + and – signals cross).
TIMING WAVEFORMS
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