参数资料
型号: 78P2351-DB-CMI
厂商: Maxim Integrated Products
文件页数: 22/42页
文件大小: 0K
描述: DEMO BOARD 78P2351
标准包装: 1
系列: *
78P2351
Single Channel
OC-3/ STM1-E/ E4 LIU
Page: 29 of 42
2006 Teridian Semiconductor Corporation
Rev. 2.4
ELECTRICAL SPECIFICATIONS (continued)
TRANSMITTER SPECIFICATIONS FOR CMI INTERFACE
Bit Rate: 139.264 Mbps
± 15ppm or 155.52 Mbps ± 20ppm
Code: Coded Mark Inversion (CMI)
Relevant Specifications: ITU-T G.703, Telcordia GR-253, ANSI T1.102
With the coaxial output port driving a 75
load, the output pulses conform to the templates in Figures 12, 13, 14
and 15. These specifications are tested during production test. Consult application note for reference
schematic, layout guidelines, and recommended transformers.
PARAMETER
CONDITION
MIN
NOM
MAX
UNIT
Peak-to-peak Output Voltage
(Fuse-trimmed to nominal target at
final test)
Template, steady state
0.9
1.05
1.1
V
Rise/ Fall Time
10-90%
2
ns
Negative Transitions
-0.1
0.1
Positive Transitions at Interval
Boundaries
-0.5
0.5
Transition Timing Tolerance
Positive Transitions at mid-
interval
-0.35
0.35
ns
Transmit clock frequency stability
(PICK or SICKP/N )
With respect to CKREF
0
ppm
The following specifications are not tested during production test. They are included for information only.
PARAMETER
CONDITION
MIN
NOM
MAX
UNIT
Output Impedance
Driver is open drain
1
8
M
pF
Return Loss
7MHz to 240MHz
15
dB
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