78P2351R-IM TERIDIAN [Teridian Semiconductor Corporation], 78P2351R-IM Datasheet - Page 19

• Manufacturer Part Number: 78P2351R-IM
• Description: Serial 155M NRZ to CMI Converter
• Manufacturer: TERIDIAN [Teridian Semiconductor Corporation]

Page: 19 of 31
PARAMETER
Signal Swing
Common Mode Level
Effective Source Impedance
Rise Time
Fall Time
PARAMETER
Signal Swing
Common Mode Level
PARAMETER
Output Voltage Low
Pull-down Leakage Current
Pull-up Resistor
PARAMETER
CKREF Duty Cycle
CKREF Frequency Stability
ELECTRICAL SPECIFICATIONS
DIGITAL I/O CHARACTERISTICS: (continued)
Pins of type PO:
Pins of type PI:
Pins of type OD
REFERENCE CLOCK CHARACTERISTICS:
Note 1: In Plesiochronous mode, the transmit data source (i.e. framer) must still be of +/-20ppm quality in
order to meet SONET/SDH bit rate requirements.
SYMBOL
SYMBOL
SYMBOL
SYMBOL
Vcm
Vcm
Vpki
Reff
Rpu
Vpk
Vol
Ipd

--
--
Tr
Tf
2006 Teridian Semiconductor Corporation
(continued)
CONDITIONS
Synchronous mode
Plesiochronous or Loop-timing
mode. (see Note 1)
CONDITIONS
Vdd referenced
10-90%
10-90%
CONDITIONS
Vdd referenced
CONDITIONS
Iol = 8mA
Logic high output
-1.55
MIN
MIN
MIN
-1.6
0.5
0.3
4.7
MIN
-20
-75
40
NRZ to CMI Converter
NOM
NOM
NOM
-1.2
-1.2
0.8
0.8
0.8
20
NOM
MAX
MAX
MAX
-1.1
-0.8
1.1
1.2
1.2
0.4
10
Serial 155M
1
MAX
+20
+75
78P2351R
60
UNIT
UNIT
UNIT
Rev. 2.1
nA
kΩ
ns
ns
Ω
V
V
V
V
V
UNIT
ppm
%