TDA9802 데이터 시트보기 (PDF) - Philips Electronics

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TDA9802

Multistandard VIF-PLL demodulator and FM-PLL detector

Philips Electronics 

Philips Semiconductors

Multistandard VIF-PLL demodulator and

FM-PLL detector

Preliminary specification

TDA9802

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX.

FM−PLL sound demodulator and AF output (pin 9) see note 18

fi FM

catching range of PLL

holding range of PLL

4

−7

3.5 − 8

tacqu

acquisition time

∆fAF

frequency deviation

THD < 1.5%;

see note 19

−

−4

−

− ±50

V10

DC voltage at decoupling capacitor

voltage dependent on 1.2 − 2.2

VCO frequency;

see note 20

Vo AF

AF output signal (RMS value, pin 9)

∆fAF = ±27 kHz;

see Fig.11

280 350 420

maximum output signal handling

THD < 1.5%

0.8 − −

∆Vo

temperature drift of AF output signal

R9

output resistance

∆T = 0 to+70 °C

−

0.2 0.5

−

100 −

RL

load resistance (pin 9)

2.2 − −

V9

DC voltage

B

−3 dB audio frequency bandwidth

1.6 2.0 2.4

95 120 −

THD

total harmonic distortion

−

0.1 0.5

S/N (W) signal-to-noise ratio, weighted

CCIR468-4; see Fig.11 50 55 −

VSC

residual sound carrier and harmonics (RMS

value)

−

− 75

αAM

AM suppression

see Fig.10;

46

AM: f = 1 kHz; m = 0.3

50 −

RR

ripple rejection on pin 9

see Fig.9

26 30 −

Measurements from IF input to audio output (pin 9)

S/N (W) weighted signal-to-noise ratio referred to

54% FM modulation

6 kHz sinusoidal waveform

black level

white picture

560 Ω between pins 13 and 11

CCIR468-4; with offset alignment on pin 4

black-to-white

sync only

39 46 −

39 48 −

39 46 −

UNIT

MHz

MHz

µs

kHz

V

mV

V

dB

Ω

kΩ

V

kHz

%

dB

mV

dB

dB

dB

dB

dB

November 1992

11

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