1235

NTE1235
Integrated Circuit
Squelch Amp
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Collector–Base Voltage, VCBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Collector–Emitter Voltage, VCEO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17V
Collector–Substrate Voltage, VCIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Emitter–Base Voltage, VEBO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Collector Current, IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3mW/°C
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30 to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +125°C
Electrical Characteristics:
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Collector–Base Voltage
VCBO
IC = 10µA, IE = 0
20
–
–
V
Collector–Emitter Voltage
VCEO
IC = 0.1mA, IB = 0
17
–
–
V
Collector Substrate Voltage
VCIO
IC = 10µA, IC1 = 0
20
–
–
V
Emitter–Base Voltage
VEBO
IE = 10µA, IC = 0
5
–
–
V
Collector Cutoff Current
ICBO
VCB = 15V, IE = 0
–
–
0.5
µA
DC Current Gain
hFE
VCE = 15V, IE = 0
70
–
400
–
Collector–Emitter Sat. Voltage
VCE(sat) IC = 10mA, IB = 1mA
–
–
0.5
V
Base–Emitter Sat. Voltage
VBE(sat) IC = 10mA, IB = 1mA
–
–
1
V
–
2.5
–
pF
–
5.0
–
pF
200
–
–
MHz
–
6
–
dB
1.2
–
1.4
V
Output Capacitor
Q1
CCB
VCE = 5V, f = 1mHz
Q2
Current Bandwidth Product
fT
VCE = 5V, IC = 1mA
Noise Figure
NF
VCE = 5V, IE = 1mA, Rg = 50Ω, f = 1MHz
Forward Voltage
VF
IF = 1mA
Pin Connection Diagram
7 Q2 Collector
6 Q2 Emitter
5 D1 Anode
4 D2 Cathode
3 Q1 Emitter
2 Q1 Base
1 Q1 Collector
.128 (3.2)
.700 (17.8) Max
1
7
.099 (2.5)
Min
.012 (0.25)
.100 (2.54)
.600 (15.24)
.323
(8.2)
Max
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