TDA1083
One Chip AM/FM Radio with Audio Power Amplifier
Description
The integrated circuit TDA1083 includes, with exception
of the FM front end, a complete AM-/FM-radio-circuit
with audio power amplifier. An internal Z-diode
stabilizes the supply voltage at V
S
[
13 V, which allows
with the aid of a resistor and a rectifier, the circuit to be
driven by a higher external supply voltage.
D
AFC-connection for VHF-tuner
D
AM-FM switching without high frequency voltages
Features
D
Large supply voltage range V
S
= 3 to 12 V
D
High AM-Sensitivity
D
Limiting threshold voltage V
i
=
50
m
V
D
Audio output power P
0
= 0.7 W
Applications
D
AM-/FM- and audio-amplifier
Figure 1. Block diagram and pin connections
Absolute Maximum Ratings
Reference points Pin 3 and 11, unless otherwise specified
Parameters
Supply voltage range
Pin 13
Supply current when using the integrated stabilization
circuit, V
S
= 12.5 to 14.3 V
Pin 13
Power dissipation
T
amb
= 65°C
Junction temperature
Storage temperature range
Symbol
V
s
I
S
P
tot
T
j
T
stg
Value
3 to 12
50
600
125
–25 to +125
Unit
V
mA
mW
°C
°C
Thermal Resistance
Parameters
Junction ambient
Symbol
R
thJA
Maximum
100
Unit
K/W
Rev. A2, 23–Feb–01
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