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LM1868 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM1868
Description  Radio System
PDF  10 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM1868 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Absolute Maximum Ratings
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage (Pin 19)
15V
Package Dissipation
20W
Above TA e 25 C Derate Based on
TJ(MAX) e 150 C and iJA e 60 CW
Storage Temperature Range
b
55 Cto a150 C
Operating Temperature Range
0 Cto a70 C
Lead Temperature (Soldering 10 sec)
260 C
Electrical Characteristics Test Circuit TA e 25 C VS e 9V RL e 8X (unless otherwise noted)
Parameter
Conditions
Min
Typ
Max
Units
STATIC CHARACTERISTICS
eAM e 0 eFM e 0
Supply Current
AM Mode S1 in Position 1
22
30
mA
Regulator Output Voltage (Pin 16)
35
39
48
V
Operating Voltage Range
45
15
DYNAMIC CHARACTERISTICSAM MODE
fAM e 1 MHz fmod e 1 kHz 30% Modulation S1 in Position 1 PO e 50 mW unless noted
Maximum Sensitivity
Measure eAM for PO e 50 mW
816
m
V
Maximum Volume
Signal-to-Noise
eAM e 10 mV
40
50
dB
Detector Output
eAM e 1mV
40
60
85
mV
Measure at Top of Volume Control
Overload Distortion
eAM e 50 mV 80% Modulation
2
10
%
Total Harmonic Distortion (THD)
eAM e 10 mV
11
2
%
DYNAMIC CHARACTERISTICSFM MODE
fFM e 107 MHz fmod e 400 Hz Df e g75 kHz PO e 50 mW S1 in Position 1
b
3 dB Limiting Sensitivity
15
45
m
V
Signal-to-Noise Ratio
eFM e 10 mV
50
64
dB
Detector Output
eFM e 10 mV Df e g225 kHz
40
60
85
mV
Measure at Top of Volume Control
AM Rejection
eFM e 10 mV 30% AM Modulation
40
50
dB
Total Harmonic Distortion (THD)
eFM e 10 mV
11
2
%
DYNAMIC CHARACTERISTICSAUDIO AMPLIFIER ONLY
f e 1 kHz eAM e 0 eFM e 0 S1 in Position 2
Power Output
THD e 10% RL 8X
VS e 6V
250
325
mW
VS e 9V
500
700
mW
Bandwidth
AM Mode PO e 50 mW
11
kHz
FM Mode PO e 50 mW
22
kHz
Total Harmonic Distortion (THD)
PO e 50 mW FM Mode
02
%
Voltage Gain
41
dB
Typical Performance Characteristics (Test Circuit) All curves are measured at audio output
vs Voltage
Quiescent Supply Current
FM Limiting Characteristics
FM IF AM Rejection
TLH7909 – 2
2



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