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PDF TDA2557 Data sheet ( Hoja de datos )
| Número de pieza | TDA2557 | |
| Descripción | Dual TV sound demodulator circuits | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
TDA2555
TDA2557
Dual TV sound demodulator circuits
Product specification
File under Integrated Circuits, IC02
March 1986
1 page  
Philips Semiconductors
Dual TV sound demodulator circuits
Product specification
TDA2555
TDA2557
CHARACTERISTICS
VP = V13, 15-14 = 12 V; Tamb = 25 °C; fIF1 = 5,5 MHz; fIF2 = 5,74 MHz; fm1 = 1 kHz; ∆f =± 30 kHz;
Vi(rms) = 5 mV for TDA2555;
Vi(rms) = 10 mV for TDA2557;
see test circuit Fig.3, voltages with respect to ground (pin 14), unless otherwise specified.
PARAMETER
Total current consumption
LIMITING AMPLIFIER
Maximum input voltage
Input voltage for start of limiting
(3 dB AF signal reduction)
TDA2555
TDA2557
DC voltage
(input limiting amplifier) pins
11, 12, 16, 17 to 14
DC voltage
(feedback loop)
FM DEMODULATOR
IF reference signal voltage
DC voltage
AF output voltage
Difference of output signals
Total harmonic distortion
at outputs AF1 and AF2 (note 1)
A.M. suppression
at outputs AF1 and AF2, fFM = 70 Hz;
∆f = ± 50 kHz; fAM = 1 kHz; m = 0,3
Signal to noise ratio
at outputs AF1 and AF2
(CCIR weighted, quasi peak)
Residual IF-signal
without de-emphasis
Ripple rejection
at outputs AF1 and AF2
f = 50 Hz to 20 kHz; Vi(rms) = 200 mV
SYMBOL
I13, 15
V11-12(rms)
V16-17(rms)
V11-12(rms)
V16-17(rms)
V11-12(rms)
V16-17(rms)
Vi
V10,18-14
V3-4(rms)
V6-7(rms)
V3,4,6,7-14
V2-14(rms)
VV-----28---––----11--44-
THD
AMS
(S + N)/N
V2,8-14(rms)
RR
MIN.
18
−
−
−
−
−
−
−
450
−
−
50
65
−
−
TYP.
24,5
200
50
250
2,0
2,0
200
3,1
600
± 0,1
−
−
70
30
40
MAX.
30
−
100
500
−
−
−
−
750
± 0,5
0,5
−
−
−
−
UNIT
mA
mV
µV
µV
V
V
mV
V
mV
dB
%
dB
dB
mV
dB
March 1986
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet TDA2557.PDF ] | |
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