STM1E-SFPxx 155Mbps Copper Transceiver
Final Datasheet
TRANSMITTER SPECIFICATIONS FOR CMI (COAX) INTERFACE
Bit Rate: 155.52Mbits/s ± 20ppm
Line Code: Coded Mark Inversion (CMI)
Relevant Specification: ITU-T G.703, ANSI T1.102, Telcordia GR-253-CORE
With the coaxial output port driving a 75Ω load, the output pulses conform to the templates in ITU-T G.703 and
G.783. These specifications are tested during production test.
PARAMETER
Peak-to-peak Output Voltage
Rise/ Fall Time
CONDITION
Template, steady state
10-90%
MIN
0.9
NOM
MAX
1.1
2
UNIT
V
ns
Negative Transitions
-0.1
-0.5
0.1
Positive Transitions at Interval
Boundaries
0.5
Transition Timing Tolerance
Ns
dB
Positive Transitions at mid-
interval
-0.35
15
0.35
Return Loss
7MHz to 240MHz
TRANSMITTER OUTPUT JITTER
The transmit jitter specification ensures compliance with ITU-T G.813, G.823, G.825, G.958 and Telcordia
GR-253-CORE for STS-3/STM-1. Transmit output jitter is not tested during production test.
Measured Jitter
Amplitude
Jitter
Detector
20dB/decade
Transmitter
Output
f1
f2
PARAMETER
Transmitter Output Jitter
CONDITION
MIN
NOM
MAX
UNIT
200 Hz to 3.5 MHz, measured
with respect to CKREF for 60s
0.055
0.075
UIpp
STM1E-SFPxx Datasheet
- 7 -
August 2008 v2-2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
