78P2351R
Serial 155M
NRZ to CMI Converter
ELECTRICAL SPECIFICATIONS (continued)
LOSS OF SIGNAL CONDITION
PARAMETER
CONDITION
MIN
TYP
MAX
UNIT
LOS threshold
LOS timing
-35
10
-19
110
-15
255
dB
UI
Nominal value
Maximum
cable loss
3 dB
Loss of Signal must be cleared
15dB
35dB
Tolerance range
LOS can be detected or cleared
Loss of Signal must be declared
APPLICATION INFORMATION
EXTERNAL COMPONENTS:
COMPONENT
PIN(S)
VALUE
UNITS
TOLERANCE
RXP
Receiver Termination Resistor
75
1%
Ω
RXN
CMIP
CMIN
Transmitter Termination Resistor
75
1%
Ω
TRANSFORMER SPECIFICATIONS:
COMPONENT
Turns Ratio for the Receiver
VALUE
UNITS
1:1
TOLERANCE
Turns Ratio for the Transmitter (center-tapped)
1:1CT
Suggested Manufacturers: Halo, MiniCircuits, Tamura, Belfuse
THERMAL INFORMATION:
PACKAGE
CONDITIONS
Θ
JA ( ˚C/W)
Θ
JC ( ˚C/W)
No forced air;
46.8
16.6
4-layer JEDEC test board
Standard 56-pin JEDEC QFN
No forced air;
4-layer JEDEC test board
23.5
15.6
Die attach pad soldered to PCB
SCHEMATICS
For reference schematics, layout guidelines, suggested transformer part numbers, etc. please check Teridian
Semiconductor's website or contact your local sales representative for the latest application note(s) and/or
evaluation boards.
Page: 28 of 31
2006 Teridian Semiconductor Corporation
Rev. 2.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
