TDA1083 查看數據表（PDF） - Atmel Corporation
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TDA1083 Datasheet PDF : 8 Pages
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TDA1083
Electrical Characteristics
Vs = 9 V, reference points Pin 3 and 11, Tamb = 25°C, unless otherwise specified
Parameters
Test Conditions / Pin Symbol Min
Typ
AF amplifier
AF voltage amplification f = 1 kHz
Gv
40
Input impedance
Ri
150
Output power
Figures 4 and 5
VS = 5.5 V,
RL = 8 W, k = 10%
Po
300
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
V10
1.2
Pin 12
V12
1.0
Pin 13
V13
3.0
3.0
Pin 16
V16
1.25
IS = 42 mA
Pin 10
V10
1.2
(VS = 12.5 to14.3 V)
Pin 12
V12
5.9
Pin 13
V13
12.5
13.3
Pin 16
V16
1.5
Regulation range
VoAF/VoAF = –10 dB
Pin 6
DVi
70
AF voltage at demodulator
output
Pin 8
VoAF
100
FM-IF amplifier, fIF = 10.7 MHz, Df = "22.5 kHz, fmod = 1 kHz
DC voltages at FM mode VS = 3 V
Pin 10
V10
1.2
without signal
Pin 12
V12
1.0
Pin 13
V13
3.0
3.0
Pin 16
V16
1.8
IS = 42 mA
Pin 10
V10
1.2
(VS = 12.5 to 14.3 V)
Pin 12
V12
5.9
Pin 13
V13
12.5
13.3
Pin 16
V16
2.0
Limiting threshold (–3 dB)
Pin 2
Vi
50
AF voltage at demodulator
output
Pin 8
VoAF
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
1
2
3
2 (8)
Rev. A2, 23–Feb–01
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