S3026
SONET/SDH/ATM CLOCK RECOVERY UNIT
Table 6. Performance Specifications
Parameter
Min
Typ
Max
Units
Condition
Nominal VCO
Center Frequency
622.08
MHz
Reference Clock
Frequency Tolerance
Clock Recovery1
-250
+250
ppm
OC-12/STS-12
Capture Range
±500
ppm With respect to fixed reference
frequency
Clock Output
Duty Cycle
Minimum transition density of 20%
% of UI
45
55
Acquisition Lock Time1
OC-12/STS-12
With device already powered up and valid
µsec REFCLK.
16
PECL Output Rise &
Fall Times
10% to 90%, 50Ω to -2V equivalent load, 5 pF
cap
600
ps
SERCLKOP/N
Jitter Generation
With less than 14 ps rms jitter on SERDATIP/N
data inputs
0.005
0.01
UI
Sinusoidal input jitter. Amplitude on
SERDATIP/N data inputs from 250 kHz to
5 MHz.
OC-12/STS-12
Jitter Tolerance1
0.5
UI
1. Guaranteed but not tested.
8
October 18, 1999 / Revision G
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
