January 1992

7

Philips Semiconductors

Preliminary specification

Quasi-split sound processor for all standards

TDA3866

CHARACTERISTICS

Vision carrier (VC) modulated with different video signals, modulation depth 100 % (proportional to 10 % residual

carrier).

VC/SC2 = 20 dB. Sound carriers (SC1, SC2) modulated with f = 1 kHz and deviation

∆f = 50 kHz unless otherwise

specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage range (pin 21)

4.5

5

8.8

V

supply current (pin 21)

48

60

72

mA

IF source control (pin 5)

input voltage in order to obtain standards

B/G (FM) with automatic muting

pin 5 connected

2.8

−

V

pin 5 open-circuit

−

2.8

−

V

B/G (FM) without muting

pin 5 connected

1.3

−

2.3

V

22 k

Ω to GND

(alternative measure)

−

1.8

−

V

L (AM sound)

pin 5 connected

0

−

0.8

V

input current

−−

100

µA

−−

−300

µA

IF input not activated (pins 1-2 or 23-24)

input resistance

−−

100

Ω

DC input voltage (pins 1, 2, 23 and 24)

internally set LOW

−−

0.1

V

α

1,2-23,24

crosstalk attenuation of IF input switch

note 1

50

56

−

dB

IF amplifier (pins 1-2 or 23-24)

input resistance

1.75

2.2

2.65

k

Ω

input capacitance

1.0

1.5

2.2

pF

DC potential, voltage (pins 1, 2, 23, 24)

−

1.75

−

V

maximum input signal (RMS value)

70

100

−

mV

input signal sensitivity B/G standard

(RMS value, pins 23-24)

−3 dB intercarrier signal

reduction on pin 17

−

70

100

µV

input signal sensitivity L standard

(RMS value, pins 1-2)

−3 dB intercarrier signal

reduction on pin 9

−

70

100

µV

∆G

v

IF gain control range

60

63

−

dB

B

IF bandwidth

−3dB

50

70

−

MHz

voltage range for gain control (pin 3)

1.7

−

2.6

V