IBM3009K2672
IBM SONET/SDH Framer
Output Parameters for LVTTL-5fd Low voltage TTL, 5 V tolerant, with pull-down, 11 mA, type fd
Symbol
VOH
Parameter and/or Test Conditions
VDD = 3.0 V, IOUT = 10 mA, Tj = 100 ο
Min
2.40
0.00
-7
Typ
Max
VDD
Unit
V
C
VDD = 3.0 V, IOUT = -7 mA, Tj = 100 ο
VDD = 3.0 V, VOUT = 0.4 V, Tj = 100 ο
C
VOL
IOL
0.4
V
-11
11
mA
mA
C
C
VDD = 3.0 V, VOUT = 2.4 V, Tj = 100 ο
IOH
10
Tri-state leakage current
V
0
400
µA
DD = 3.0 V, Temp = 23 οC, VOUT = VDD
Slew rate of output
Output impedance
100
45
mA/ns
Ω
35
55
11
Whole process, temperature, and VDD range
Output capacitance
pF
Output Parameters for PPECL 50Ω Push-pull differential output, P-Pseudo-ECL, 50 ohms
Symbol
VOH
Parameter and/or Test Conditions
Output high voltage
Min
2.00
1.40
1.70
0.60
Typ
2.42
1.58
2.00
0.83
Max
2.78
1.75
2.22
1.20
25
Unit
V
VOL
Output low voltage
V
VOCM
VODIFF
ZOUT
Output common mode voltage
Differential output signal voltage
Output impedance
V
V
Ω
Performance of PPECL 50Ω Drivers vs Load
Parameter, Load1
Min
Typ
Max
Unit
Notes
Driver delay, 2 pF
280
370
1.5
1.1
27
440
570
3.4
2.4
49
715
905
7.6
4.8
80
ps
2
2
Driver delay, 8 pF
ps
Output slew rate, 2 pF
Output slew rate, 8 pF
Power consumption, 2 pF
Power consumption, 8 pF
V/ns
V/ns
mW
mW
3
3
31
55
92
1. Performance is measured with 100 Ω termination of the differential line; capacitive load on each output.
2. Delays are measured from input crossing VDD / 2 to output V-crosspoint.
3. 311 MHz operation.
ssframer.01
8/27/99
Electrical and Thermal Characteristics
Page 57 of 279
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