SONET/SDH/ATM CLOCK RECOVERY UNIT
Table 7. TTL Input/Output DC Characteristics
1
(T
A
= -40°C to +85°C, V
CC
= 5 V
±5%)
S3026
Symbol
V
IL1
V
IH1
I
IL
I
IH
I
I
I
OS
V
IK
V
OL
V
OH
Parameters
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Input High Current at Max V
CC
Output Short Circuit Current
Input Clamp Diode Voltage
TTL Output Low Voltage
TTL Output High Voltage
Min
Typ
Max
0. 8
Units
V
V
µA
Test Conditions
Guaranteed input Low voltage for all
inputs
Guaranteed input High voltage for all
inputs
V
CC
= MAX, V
IN
= 0.5V
V
CC
= MAX, V
IN
= 2.7V
V
CC
= MAX, V
IN
= 5.25V
V
CC
= MAX, V
OUT
= 0.5V
V
CC
= MIN, I
IN
= 18.0mA
V
CC
= MIN, I
OL
= 8mA
V
CC
= MIN, IOH = –1.0mA
2. 0
–400.0
50.0
1.0
–100.0
–1.2
0.5
2. 4
–25.0
µA
mA
mA
V
V
V
1. These input levels provide a zero–noise immunity and should only be tested in a static, noise-free environment.
Table 8. PECL Input/Output DC Characteristics
(T
A
= -40°C to +85°C, V
CC
= 5 V
±5%)
Symbol
V
IL
V
IH
V
IL
V
IH
V
ID
I
IH
I
IL
V
OL
V
OH
V
OD
Parameters
Input Low Voltage
Input High Voltage
Input Low Voltage
Input High Voltage
Input Differential Voltage
Input High Current
Input Low Current
Output Low Voltage
Output High Voltage
Output Differential Voltage
Min
V
CC
–2.000
V
CC
–1.225
V
CC
–2.000
V
CC
–1.750
0.250
–0.500
–0.500
V
CC
–2.000
V
CC
–1.110
0.390
Typ
Max
V
CC
–1.441
V
CC
–0.570
V
CC
–0.700
V
CC
–0.450
Units
V
V
V
V
V
µA
µA
V
V
V
Conditions
Guaranteed input Low voltage for
single-ended inputs
Guaranteed input High voltage for
single-ended inputs
Guaranteed input Low voltage for
differential inputs
Guaranteed input High voltage for
differential inputs
Differential input voltage
V
ID
= 500mV
V
ID
= 500mV
50
Ω
termination to V
CC
–2V
50
Ω
termination to V
CC
–2V
Differential output voltage
0.500
1.400
20.000
20.000
V
CC
–1.500
V
CC
–0.670
1.330
October 18, 1999 / Revision G
9
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
