TDA3825 Ver la hoja de datos (PDF) - Philips Electronics
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TDA3825 Datasheet PDF : 12 Pages
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Philips Semiconductors
Single FM TV-sound demodulator circuit
Product specification
TDA3825
CHARACTERISTICS
VP = 5 V; Tamb = 25 °C; Vi = 10 mV; fo = 5.5 MHz; fAF = 1 kHz; ∆f = 50 kHz; all parameters were measured with the test
circuit of Fig. 2; unless otherwise specified
PARAMETER
CONDITIONS
SYMBOL
MIN.
TYP.
MAX. UNIT
Supply voltage (pin 11)
Total current consumption
Limiting amplifier
VP
4.5
5.0
13.2
V
Itot
−
16
20
mA
Input voltage (pin 14)
(RMS value)
DC voltages
V14-1
−
3 dB signal reduction V14-1
−
−
200
mV
−
50
µV
pin 2
pin 13
pin 14
Input resistance
Input capacitance
V2-1
−
2
−
V
V13-1
−
2
−
V
V14-1
−
2
−
V
R14-13
15
−
−
kΩ
C14-13
−
−
6
pF
FM demodulator
DC voltages
pin 7
pin 8
AF output voltage (pin 5)
(RMS value)
AM suppression
Total harmonic distortion
Output impedance (pin 5)
Signal plus weighted-noise
to weighted-noise ratio
Signal plus noise-to-noise
ratio
Residual RF signal (pin 5)
(RMS value)
Ripple rejection
Source selector (pin 12)
Open loop gain
Noise output voltage
(RMS value)
V7-1
−
V8-1
−
QB = 11
V5-1
−
fAM = 400 Hz; m = 0.3; αAM
50
Vi = 500 µV(rms)
THD
−
Z5-1
−
in accordance with
DIN4505; CCIR468-3
Bnoise = 20 kHz
(S + W)/W 65
(S + N)/N 75
2 x fo
V5−1
−
without de-emphasis
fR = 70 Hz;
αR
40
VR = 100 mV(p-p)
Bnoise = 20 kHz
Gol
50
V12-1
−
3.2
−
V
3.2
−
V
0.5
−
V
−
−
dB
0.3
0.5
%
6
−
kΩ
70
−
dB
80
−
dB
30
−
mV
45
−
dB
60
−
dB
20
−
µV
September 1988
5
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