Decision Circuit. TF1001A Datasheet

TF1001A Circuit. Datasheet pdf. Equivalent

TF1001A Datasheet
Recommendation TF1001A Datasheet
Part TF1001A
Description LG1602 Decision Circuit
Feature TF1001A; Data Sheet February 1999 LG1602 Decision Circuit Features s s s s Functional Description The LG160.
Manufacture Agere Systems
Datasheet
Download TF1001A Datasheet





Agere Systems TF1001A
Data Sheet
February 1999
Features
s Operation up to 3 Gbits/s
s Good sensitivity to low input signals
s Low power dissipation
s Surface-mount package
Applications
s SONET/SDH transmission systems
s Digital video transmission
s Digital test instruments
LG1602 Decision Circuit
Functional Description
The LG1602 is a gallium arsenide (GaAs) decision
circuit. It features a sensitive broadband input ampli-
fier and a D-type flip-flop that retimes and regener-
ates an input data stream that is weakened by noise,
jitter, and intersymbol interference.
The LG1602 has complementary 50 output buff-
ers.
dc feedback ensures input threshold control for input
levels as low as 25 mV, when using dc balanced
input data. The LG1602 is available in a hermetically
sealed 16-lead glass-metal surface-mount package.
V+OUT V–OUT
V–REF
V–IN
V+IN
V+REF
110 pF
25 k
50
50
25 k
110 pF
Q
D
D
2 pF
50
50
2 pF
VSS
V–CLK
V+CLK
GND
5-7667(F)r.3
Figure 1. LG1602 Functional Diagram



Agere Systems TF1001A
LG1602 Decision Circuit
Pin Information
GND GND NC NC
Data Sheet
February 1999
GND
V+CLK
V–CLK
VSS
16 15 14 13
1
2
3
4
12
11
10
9
5678
V+REF
V+IN
V–IN
V–REF
V–OUT V+OUT NC NC
Figure 2. Pin Diagram
12-3223(F).ar.2
Table 1. Pin Descriptions
Pin
2
3
4
5
6
9
10
11
12
1, 15, 16,
Package
Back
7, 8, 13, 14
Symbol
V+CLK
V–CLK
VSS
V–OUT
V+OUT
V–REF
V–IN
V+IN
V+REF
GND
NC
Name/Description
Clock Input. May be grounded, if not used.
Clock Input. May be grounded, if not used.
dc Supply Voltage.
Negative Data Output. ac couple or terminate with 50 to GND.
Positive Data Output. ac couple or terminate with 50 to GND.
Data Negative Reference. Bypass to GND with 0.047 µF in series with 5 .
Negative Data Input. ac couple with 0.047 µF.
Positive Data Input. ac couple with 0.047 µF.
Data Positive Reference. Bypass to GND with 0.047 µF in series with 5 .
Ground. For optimum performance, package back should contact board ground
plane.
No Connection.
2 Lucent Technologies Inc.



Agere Systems TF1001A
Data Sheet
February 1999
LG1602 Decision Circuit
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent or latent damage to the device. These
are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in
excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.
Table 2. Absolute Maximum Ratings
Parameter
Supply Voltage Range (VSS)
Power Dissipation
Voltage (all pins)
Clock Input (V+CLK, V–CLK)
V+REF – V+IN
V–REF – V–IN
Storage Temperature Range
Operating Case Temperature Range
Min
Max
Unit
0.5 –7
V
— 1W
0.5 VSS
V
— ±2 V
— ±2 V
— ±2 V
–40 125 °C
0 100 °C
Recommended Operating Conditions
Table 3. Recommended Operating Conditions
Parameter
Case Temperature
Power Supply
Symbol
tCASE
VSS
Min
0
–4.7
Max
75
–5.7
Unit
°C
V
Handling Precautions
Although protection circuitry has been designed into this device, proper precautions should be taken to avoid expo-
sure to electrostatic discharge (ESD) during handling and mounting. Lucent employs a human-body model (HBM)
and a charged-device model (CDM) for ESD-susceptibility testing and protection design evaluation. No industry-
wide standard has been adopted for the CDM. However, a standard HBM (resistance = 1500 , capacitance =
100 pF) is widely used and, therefore, can be used for comparison purposes. The HBM ESD threshold presented
here was obtained by using these circuit parameters.
Table 4. ESD Threshold
HBM ESD Threshold
Device
Voltage
LG1602
200 V
Mounting and Connections
Certain precautions must be taken when using solder. For installation using a constant temperature solder, tem-
peratures of under 300 °C may be employed for periods of time up to 5 seconds, maximum. For installation with a
soldering iron (battery operated or nonswitching only), the soldering tip temperature should not be greater than
300 °C and the soldering time for each lead must not exceed 5 seconds.
Lucent Technologies Inc.
3





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