Data Sheet
February 1999
LG1605DXB Limiting Amplifier
Mounting and Connections (continued)
Lucent Technologies/FORCE ICs assembly procedure recommendations for the LG1605DXB are as follows:
s Board solder pattern for the 1605DXB package base should not exceed 50% of the package base area.
s Back lighting can be used during the pick and place operation to silhouette the package in order to eliminate
reflection problems with the solder on the bottom.
s Set the lead spacing tolerance to ±0.012 in.
s Insertion pressure should not exceed 125 g.
Electrical Characteristics
tCASE = 0 °C to 70 °C, VBR = –1.5 V, VSS = –4.7 V to –5.7 V, bit rate = 2.488 Mbits/s NRZ, and data pattern =
223 – 1 PRBS, unless otherwise indicated.
Note: Minimum and maximum values are testing requirements. Typical values are characteristics of the device and
are the result of engineering evaluations. Typical values are for information purposes only and are not part of
the testing requirements.
Parameter
Symbol
Conditions1
Min
Typ
Max
Unit
Data Input Voltage2
V±IN
Single-ended source
—
—
800 mVp-p
Data Input Voltage2
V+IN – V–IN
Differential source
—
—
1600 mVp-p
Input Offset Voltage
V+REF – V–REF 40 °C/–5.2 V; 70 °C/–5.7 V
—
—
25
mV
Common-mode Input
Voltage Range
VCMIN
25 °C, VSS = –5.2 V,
dc input coupling
— –2 to –4 —
V
Output Voltage
V±OUT
—
400
550
— mVp-p
Output Pulse Width
Relative to Bit Period
PW%
Measured on V+OUT,
@ 40 °C and 70 °C
90
100
110
%
Small-signal Output
Transition Time
tr, tf
25 °C, 20% to 80%,
—
100
—
ps
VIN = 8 mVp-p
Small-signal Gain
G
40 °C to 70 °C, VIN =
26
28
35
dB
8 mVp-p
Small-signal –3 dB
Bandwidth
f3dB
25 °C, VIN = 8 mVp-p
—
3
—
GHz
Low-frequency –3 dB
Cut-off2
fLF
VIN = 8 mVp-p, input coupling —
2.5
8
kHz
and bypassing as in Figure 3
Supply Current
ISS
—
—
85
100
mA
Noise Figure2
NF
25 °C, single-ended input
—
15
16
dB
Input Referred Wideband
Vnr
Noise
25 °C, single-ended input,
—
168
— µVrms
7 kHz—18 GHz
Thermal Resistance
θJC
Junction to case
—
30
—
°C/W
1. All temperatures are case temperature, tCASE.
2. Parameter guaranteed by design or characterization and not production tested.
Lucent Technologies Inc.
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