S2092
SERIAL BACKPLANE RETIMER DEVICE
Table 7. Serial Data Timing, Input (SERDATIP/N), Output (SERDATOP/N)
Parameter
Description
Min
Typ
Max Units
Conditions
VCO
Operating
Frequency
2.125
2.488
2.67
GHz
Minimum transition
density of 20%.
Data Acquisition Lock Time
Guaranteed but not
tested. With device
powered up and valid
REFCLK.
TLOCK
19.44 to 20.83 MHz REFCLK
155.52 to 166.63 MHz REFCLK
1800 µsec
250
µsec
1 MHz < f < 5 MHz
Data pattern = 27–1
PRBS
Input Jitter
Tolerance
Serial Data Input Total Jitter
Tolerance at 2.488 Gbps
0.4
0.5
UI
1 MHz < f < 5 MHz
Data pattern = 27–1
(rms) PRBS. With no jitter
on serial data inputs.
Data Output
Jitter
VCO Locked to SERDATIP/N
at 2.488 Gbps
UI
0.0038 0.006
Serial Data Output Rise and Fall
Time
20% to 80%, 50 Ω
load, 1 pf cap.
RSR, RSF
60
120
770
ps
Frequency difference at which the
receive PLL goes out of lock
(REFCLK compared to the divided
down VCO clock)
PLL
Specification
450
220
600
ppm
ppm
Frequency difference at which the
receive PLL goes into lock
(REFCLK compared to the divided
down VCO clock)
PLL
Specification
300
390
Table 8. CML Input DC Characteristics
Parameters
∆VINDIFF
Description
Min
Typ
Max Units
Conditions
See Figure 7.
Differential Input Voltage Swing
Single-ended Input Voltage Swing
Differential Input Resistance
100
50
1900
950
mV
mV
Ω
∆VINSINGLE
RDIFF
See Figure 7.
80
100
120
July 10, 2000 / Revision A
10
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
