Data Sheet
February 1999
LG1602 Decision Circuit
4
Lucent Technologies Inc.
Electrical Characteristics
Bit rate = 2.488 Mbits/s NRZ and data pattern = 2
23
– 1 PRBS, unless otherwise indicated. See Figure 3 for the tim-
ing and signal levels and Figure 5 for the test circuit, when using the TF1001A test fixture.
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
Conditions
LG1602AXB
t
CASE =
25 °C
V
SS
= –5.2 V
LG1602BXB
t
CASE =
0 °C—
75 °C
V
SS
= –4.9 V to
–5.5 V
Min
Typ
2.5
—
200
—
Unit
Min
3
200
Typ
—
—
Max
—
800
Max
—
900
Maximum Bit Rate
Data Input Voltage
|
V
H
– <V>
|
+
|
<V> – V
L
|
Data Input Sensitivity
—
—
BER = 10
–9
GHz
mV
t
R
, t
F
≤
165 ps (20%—80%)
—
BER = 10
–9
, limited clock
phase margin
t
R
, t
F
≤
85 ps (20%—80%),
duty cycle = 50% ± 10%
—
Data transition to negative
edge of CLOCK IN
Data transition to negative
edge of CLOCK IN
Data transition to negative
edge of CLOCK IN
Valid input data to negative
edge of CLOCK IN
Negative edge CLOCK IN to
valid DATA IN
CLOCK IN negative edge to
output transition
Outputs ac coupled (see
Figure 5)
20%—80%, outputs ac cou-
pled
1 MHz—2 GHz, outputs ac
coupled
100 kHz—300 kHz
0.3 MHz—1500 MHz
1.5 GHz—1.8 GHz
2.4 GHz—2.6 GHz
—
Junction to case bottom
—
20
—
—
20
—
mV
Clock Input Voltage
|
V
H
– <V>
|
+
|
<V> – V
L
|
Clock Phase Margin
Clock Phase Minimum
—
500
—
1000 200
—
900
mV
—
t1
250
—
360
—
—
—
250
—
360
150
—
205
ps
ps
Clock Phase Maximum
t2
—
—
—
455
510
—
ps
Clock Phase Center
t
C
—
330
—
—
330
—
ps
Setup Time
t
S
—
185
—
—
185
205
ps
Hold Time
t
H
—
–73
—
—
–73
–53
ps
Propagation Delay
t
PD
—
1200
—
—
1200
—
ps
Output Voltage (V
H
– V
L
)
—
500
600
—
500
600
—
mV
Output Transition Time
—
—
—
100
—
—
100
ps
Output Return Loss
—
—
15
—
—
15
—
dB
Data Input Return Loss
—
—
—
—
—
—
—
10
15
15
15
115
20
—
—
—
—
—
—
10
15
15
15
—
—
—
—
—
—
115
20
—
—
—
—
—
—
dB
dB
dB
dB
mA
°C/W
Clock Input Return Loss
Power Supply Current
Thermal Resistance
—
—
—