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

CHARACTERISTICS

VP = 5 V; Tamb = +25 °C; fPC = 38.9 MHz; fSC = 33.4 MHz with VPC/VSC = 13 dB (B/G); ViIF = 10 mV RMS value

(sync level at B/G; peak-white level at L); video modulation DSB; residual carrier: B/G = 10%, L = 3%; video signal in

accordance with CCIR line 17; measurements taken in Fig.3 unless otherwise specified

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX.

VP

supply voltage range (pin 20)

IP

supply current

see note 1

4.5 5 8.8

51 60 69

Standard switch input (pin 8)

VIH

input voltage for negative modulation

VIL

input voltage for positive modulation

IIL

LOW level input current

Vision IF input (pins 1 and 2)

see note 2

V8 = 0 V

B/G standard

1.5 −

VP

0

− 0.8

−

−300 −360

Vi

input signal sensitivity (RMS value)

−1 dB video at output −

50 90

maximum input signal (RMS value)

+1 dB video at output 70 150 −

∆Vi

IF amplitude difference between picture and within AGC range

−

0.7 1

sound carrier

GIF

IF gain control range

B

−3 dB IF bandwidth

Ri

input resistance

Ci

input capacitance

V1, 2

DC input voltage

True synchronous video demodulator

see Fig.4

64

upper cut-off frequency 70

1.7

1.2

3.0

see note 3

70 73

100 −

2.2 2.7

1.7 2.5

3.4 3.8

fVCO

maximum oscillator frequency for carrier f = 2fPC

regeneration

125 130 −

∆fVCO

oscillator drift (free running) as a function of see note 4;

temperature

∆T = 0 to+70 °C

−

− ±1300

Vo ref

oscillator swing at pins 16 and 17

(RMS value)

tbn 120 tbn

∆fPC

vision carrier capture range (negative)

1.5 2 −

vision carrier capture range (positive)

1.5 2 −

tacqu

acquisition time

see note 5; BL = 60 kHz −

− 30

Vi IF

IF input signal sensitivity (RMS value, pins 1

and 2)

for PLL still locked

see note 6;

maximum IF gain

−

70 100

for C/N = 10 dB

Iloop

FPLL loop offset current at pin 6

see note 7

see note 8

−

100 140

−

− ±4.5

UNIT

V

mA

V

V

µA

µV

mV

dB

dB

MHz

kΩ

pF

V

MHz

10−6

mV

MHz

MHz

ms

µV

µV

µA

November 1992

7

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