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Philips TDA8303A User Manual

Page 9

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July 1992

9

Philips Semiconductors

Preliminary specification

Small signal combination IC for black/white TV

TDA8303

TDA8303A

Sound circuit (note 12)

V

15

input limiting voltage

V

O(max)

=

3 dB

400

800

µ

V

R

15

input resistance

2.6

k

C

15

input capacitance

6

pF

AMS

AM suppression

note 13

53

58

dB

V

12(RMS)

AF output signal (RMS value)

note 14

400

600

800

mV

V

12(RMS)

AF output signal when pin 11 is used as a
starting pin or connected to V

P

(RMS value)

f = 50 kHz

500

900

1500

mV

Z

12

AF output impedance

25

100

THD

total harmonic distortion

note 15

0.5

2

%

RR

ripple rejection

volume control

20 dB;

f

k

= 100 Hz

35

dB

V

12

output voltage when muted

2.5

V

V

12

output level shift due to muting

volume control

20 dB

0.5

dB

S/N

signal-to-noise ratio

note 16

47

dB

V

11

voltage with pin 11 disconnected

6

V

I

11

current with pin 11 short-circuited to ground

1

mA

V

12

temperature dependence of the output signal
amplitude

T

amb

= 20 to 65

°

C;

30 dB volume

control and
voltage of pin 11
fixed;
note 17

2.5

dB

Volume control (note 17; see Fig.8)

R

11

external control resistor

note 17

4.7

k

OSS

suppression of output signal during mute
condition

60

66

dB

Horizontal synchronization circuit (see Fig.9)

S

YNC SEPARATOR

V

25

required sync pulse amplitude

note 20

200

750

mV

I

25

input current (pin 25)

V

25

>

5 V

8

µ

A

V

25

= 0 V

10

mA

F

IRST CONTROL LOOP

±∆

f

PLL holding range

1500

2000

Hz

±∆

f

PLL catching range

600

1500

Hz

control sensitivity to oscillator

note 21

see Fig.10

V

8-9

IF input signal at which the time constant is
switched (RMS value)

strong-to-weak

2.2

mV

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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