參數(shù)資料
型號(hào): SY69952ZH
廠商: MICREL INC
元件分類: 數(shù)字傳輸電路
英文描述: OC-3/STS-3 CLOCK RECOVERING TRANSCEIVER
中文描述: TRANSCEIVER, PDSO28
封裝: 0.300 INCH, LEAD FREE, SOIC-28
文件頁(yè)數(shù): 7/8頁(yè)
文件大?。?/td> 108K
代理商: SY69952ZH
SY69952
7
Micrel, Inc.
M9999-062805
hbwhelp@micrel.com or (408) 955-1690
Symbol
Parameter
Min.
Typ.
Max.
Units
Condition
f
REF
Reference Frequency
6.41
19.24
6.48
19.44
6.55
19.64
MHz
MHZ
MODE = 0
MODE = 1
f
B
Bit Time
(1)
19.5
6.50
19.3
6.43
19.1
6.36
ns
ns
MODE = 0
MODE = 1
t
ODC
Output Duty Cycle
(2)
(TCLK±, RCLK±)
48
52
%
t
RF
ECL Output Rise/Fall Tiime
(2)
PLL Lock Time
(2)
0.4
1.2
ns
5pf load, 50
to V
CC
–2 (20% to 80%)
t
LOCK
1
μs
RIN transition density 25%
t
RPWH
REFCLK Pulse Width High
3.3
10
ns
ns
MODE = 0
MODE = 1
t
RPWL
REFCLK Pulse Width Low
3.3
10
ns
ns
MODE = 0
MODE = 1
t
DV
Data Valid
3
ns
Prior to RCLK+ rising edge
t
DH
Data Hold
Propagation Delay
(3)
(RIN to ROUT, TSER to TOUT)
1
ns
After RCLK+ rising edge
t
PD
10
ns
V
CC
= +5V ±5%; V
EE
= GND = 0V, T
A
= 0
°
C to +85
°
C
AC ELECTRICAL CHARACTERISTICS
NOTES:
1. f
B
is calculated as 1/(f
REF
* 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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