TDA4282T ,Quasi-Parallel Sound ICSIEMENS
TDA 4282 T
Quasi-Parallel Sound IC with FM IF,
Sym. Input and Volume Control
The TD ..
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0 Few external components
0 High signal-to-noise ratio
0 Low total harmonic disto ..
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TDA4282T
Quasi-Parallel Sound IC
SHEMENS
TIA 4282 T
t2uasi-Parallel Sound 10 with FM IF,
Sym. Input and Volume Control
The TDA 4282 T is a controlled AM amplifier with FM demodulator (to produce an intercarri_er)
and subsequent sound-IF limiting amplifier with coincidence demodulator, standard VCR
connection and separate AF-output with volume control.
o Outstanding limiting qualities
It Connection for video recorder
0 Little external circuitry
Maximum ratings
Supply voltage
ts 1 min
Thermal resistance (system-ambient air)
Junction temperature
Storage temperature
Operational range
Supply voltage
Frequency range AM part
FM part
Control voltage AM part
Switch current FM part
Ambient temperature in operation
Re, SA
-40 to 125
11 to 15
10to60
0.01 to12
0.3to1
TDA 4282 T
Characteristics (Vs T.T2 15V, Tamb = 25°C)
Current consumption
AM-part:
AGC-range
AGC-voltage
Input resistance
Input impedance at max. gain
at min. gain
Output resistance
FM-part: (f2 = 5.5 MHz; fmod = 1 kHz)
Input impedance
AM-suppression
(V5940 =1mV;f=12.5 MHz; m = 30%)
Signal-to-noise ratio Wisto = 10 mV)
Input voltage for limiting
M f= 30 kHz)
Demodulator output resistance
Output resistance for VCR-recording
Input resistance for VCR-playback
Integrated resistor for deemphasis
AF-output voltage
(Vi = 10 mV; with CDA 5.5 MC10,Roo = 2.9 Q)
M f= 12.5 kHz) _
AF-gain during VCR-playback
Total harmonic distortion
Cross talk (Vi = 1 mV)
v12 = 2 Vrms
V12 = 0.3 Vrm,
Range of volume control
min typ max
Is 60 80 mA
A G 55 dB
v, 0 5 V
Ra 3M 10 k9
z, 20-21 1.8/2 kQ/pF
2320.21 1.9/0 kQ/pF
R, 6 500 Q
R, , 500 Q
Zi9~10 800 Q
8AM 42 dB
asm 85 dB
Vi tim, 60 Isl/
R, 15-16 5.4 Mt
R, 12 500 Q
R, 12 10 k9
R17 10 k9
Va " 600 mvrms
It, ll 260 300 mes
V1241 0.5
THD,, 1 %
Cu." 50 52 dB
C12." 60 65 dB
.l.(err,t:..es 70 85 dB
VAF min
