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TDA1083 반도체 회로 부품 판매점

One Chip AM/FM Radio with Audio Power Amplifier



ATMEL Corporation 로고
ATMEL Corporation
TDA1083 데이터시트, 핀배열, 회로
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
Features
D Large supply voltage range VS = 3 to 12 V
D High AM-Sensitivity
D Limiting threshold voltage Vi = 50 mV
D Audio output power P0 = 0.7 W
stabilizes the supply voltage at VS [ 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
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, VS = 12.5 to 14.3 V
Pin 13
Power dissipation
Tamb = 65°C
Junction temperature
Storage temperature range
Thermal Resistance
Symbol
Vs
IS
Ptot
Tj
Tstg
Value
3 to 12
50
600
125
–25 to +125
Junction ambient
Parameters
Symbol
RthJA
Maximum
100
Rev. A2, 23–Feb–01
Unit
V
mA
mW
°C
°C
Unit
K/W
1 (8)


TDA1083 데이터시트, 핀배열, 회로
TDA1083
Electrical Characteristics
Vs = 9 V, reference points Pin 3 and 11, Tamb = 25°C, unless otherwise specified
Parameters
Test Conditions / Pin Symbol
AF amplifier
AF voltage amplification f = 1 kHz
Gv
Input impedance
Ri
Output power
Figures 4 and 5
VS = 5.5 V,
RL = 8 W, k = 10%
Po
AM-IF amplifier, fi = 1 MHz, fIF = 455 kHz, fmod = 1 kHz, m = 0.3
DC voltages at AM mode VS = 3 V
without signal
Pin 10
Pin 12
Pin 13
Pin 16
V10
V12
V13
V16
Min
300
1.0
3.0
1.25
IS = 42 mA
Pin 10
(VS = 12.5 to14.3 V)
Pin 12
Pin 13
Pin 16
V10
V12
V13
V16
Regulation range
VoAF/VoAF = –10 dB
Pin 6
DVi
AF voltage at demodulator
output
Pin 8
VoAF
FM-IF amplifier, fIF = 10.7 MHz, Df = "22.5 kHz, fmod = 1 kHz
DC voltages at FM mode VS = 3 V
without signal
Pin 10
Pin 12
Pin 13
Pin 16
V10
V12
V13
V16
5.9
12.5
1.5
1.0
3.0
1.8
Limiting threshold (–3 dB)
AF voltage at demodulator
output
IS = 42 mA
Pin 10
(VS = 12.5 to 14.3 V)
Pin 12
Pin 13
Pin 16
Pin 2
Pin 8
V10
V12
V13
V16
Vi
VoAF
5.9
12.5
2.0
Typ
40
150
1.2
3.0
1.2
13.3
70
100
1.2
3.0
1.2
13.3
50
100
Max Unit
dB
kW
mW
V
1.4 V
3.0 V
2.0 V
V
7.2 V
14.3 V
2.0 V
dB
mV
V
1.4 V
3.0 V
2.8 V
V
7.2 V
14.3 V
3.1 V
mV
mV
Different dc voltages are developed at Pin 16 due to gain
spread of AM-IF-amplifier. To determine the value of
parallel resistance R8, at the output of the demodulator
Pin 8 for VS = 9 V, AM mode without signal, dc voltage
should be selected at Pin 16.
Table 1. Available in following voltage groups:
V16
R8
Group
1.4 to 1.7 V 1.7 to 1.9 V 1.9 to 2.1 V
1
47 kW
33 kW
123
2 (8) Rev. A2, 23–Feb–01




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( atmel )

TDA1083 amplifier

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