LM1868 National Semiconductor, LM1868 Datasheet - Page 2

• Manufacturer Part Number: LM1868
• Description: Radio System
• Manufacturer: National Semiconductor

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STATIC CHARACTERISTICS e
DYNAMIC CHARACTERISTICS AM MODE
f
DYNAMIC CHARACTERISTICS FM MODE f
DYNAMIC CHARACTERISTICS AUDIO AMPLIFIER ONLY f
AM
Absolute Maximum Ratings
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Supply Voltage (Pin 19)
Package Dissipation
Electrical Characteristics
Typical Performance Characteristics
Supply Current
Regulator Output Voltage (Pin 16)
Operating Voltage Range
Maximum Sensitivity
Signal-to-Noise
Detector Output
Overload Distortion
Total Harmonic Distortion (THD)
Signal-to-Noise Ratio
Detector Output
AM Rejection
Total Harmonic Distortion (THD)
Power Output
Bandwidth
Total Harmonic Distortion (THD)
Voltage Gain
b
e
Above T
T
3 dB Limiting Sensitivity
J(MAX)
1 MHz f
A
e
Parameter
mod
e
150 C and
Quiescent Supply Current
vs Voltage
25 C Derate Based on
e
1 kHz 30% Modulation S1 in Position 1 P
JA
AM
e
60 C W
e
0 e
FM
AM Mode S1 in Position 1
Measure e
Maximum Volume
e
e
Measure at Top of Volume Control
e
e
e
e
Measure at Top of Volume Control
e
e
THD
V
V
AM Mode P
FM Mode P
P
e
Test Circuit T
AM
AM
AM
AM
FM
FM
FM
FM
FM
S
S
O
0
e
e
e
e
e
e
e
e
e
e
e
e
e
6V
9V
50 mW FM Mode
10 mV
10 mV
10 mV 30% AM Modulation
10 mV
10 mV
1 mV
50 mV 80% Modulation
10 mV
10 7 MHz f
10% R
AM
FM Limiting Characteristics
Conditions
O
O
2 0W
15V
for P
e
e
A
L
e
f
50 mW
8
50 mW
e
e
O
mod
25 C V
O
(Test Circuit) All curves are measured at audio output
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2
e
g
1 kHz e
e
22 5 kHz
e
50 mW
50 mW unless noted
Storage Temperature Range
Operating Temperature Range
Lead Temperature (Soldering 10 sec )
400 Hz
S
e
AM
9V R
e
0 e
f
L
e
e
FM
g
8
75 kHz P
e
Min
250
500
3 5
4 5
40
40
50
40
40
8
(unless otherwise noted)
0 S1 in Position 2
FM IF AM Rejection
O
e
Typ
325
700
3 9
1 1
1 1
0 2
22
50
60
15
64
60
50
11
22
41
2
50 mW S1 in Position 1
b
Max
4 8
30
15
16
85
10
45
85
2
2
55 C to
0 C to
TL H 7909 – 2
a
a
Units
150 C
260 C
mW
mW
kHz
kHz
mA
mV
mV
70 C
dB
dB
dB
dB
%
%
%
%
V
V
V