TDA3803A.PDF

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INTEGRATED CIRCUITS
DATA SHEET
TDA3803A
Stereo/dual TV sound decoder
circuit
Product specification
File under Integrated Circuits, IC02
November 1987
11043601.004.png
Philips Semiconductors
Product specification
Stereo/dual TV sound decoder circuit
TDA3803A
GENERAL DESCRIPTION
The TDA3803A is a stereo/dual TV sound decoder circuit with static switching for processing two AF signals in TV and
VCR equipment. The LOW/HIGH static switching signals control the AF output selector. Two operational amplifiers
perform bandpass filtering of the identification signals.
Features
·
Amplification of the two AF input signals by integrated operational amplifiers
·
Low distortion stereo de-matrix
·
All operational amplifiers offset compensated
·
De-emphasis with operational amplifiers, preferably applied to the output terminals
·
Two output ports each with two channels for headphones and loudspeakers
·
Dual sound information at one port, each port individually switchable from sound I to sound II and sound II to sound I
·
Mute function; while mute is active, it is possible to connect an external mono AF input signal to pin 10 appearing at
pins 20 to 23.
·
Identification without additional signals (horizontal etc.)
QUICK REFERENCE DATA
Supply voltage (pin 13)
V P =V 13-12
typ.
12
V
Supply current (pin 13)
I P =I 13
typ.
28
mA
Pilot carrier amplifier gain control range
G v
>
40
dB
A.F. input signals; at G v =0dB
(r.m.s. value)
V i(rms)
=
1
V
LED output current
I LED
typ.
12
mA
Weighted signal-to-noise ratio
of the a.f. signal switches (CCIR468/2)
(S
+
N)/N
³
60
dB
Crosstalk in stereo mode
a S
>
40
dB
Crosstalk in dual sound mode
a DS
>
60
dB
PACKAGE OUTLINE
28-lead DIL; plastic (SOT117); SOT117-1; 1996 November 25.
November 1987
2
D
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Philips Semiconductors
Product specification
Stereo/dual TV sound decoder circuit
TDA3803A
November 1987
3
11043601.001.png
Philips Semiconductors
Product specification
Stereo/dual TV sound decoder circuit
TDA3803A
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pin 13)
V P =V 13-12
max. 14
V
Voltages with respect to pin 12 (ground)
pins 25; 27 and 28
V 25; 27; 28-12 max. V P
Voltages
pin 1 to pin 10
V n-12
max. V P
pin 14 to pin 19
V n-12
max. V P
Currents
pin 11
I 11
max. 3
mA
pins 20; 21; 22; 23
I 20;21;22;23
max. 10
mA
pin 28
-
I 28
max. 3
mA
Total power dissipation
P tot
max. 1,5
W
Storage temperature range
T stg
-
25 to
+
125
°
C
Operating ambient temperature range
T amb
0 to
+
70
°
C
November 1987
4
11043601.002.png
Philips Semiconductors
Product specification
Stereo/dual TV sound decoder circuit
TDA3803A
CHARACTERISTICS
V P = 12 V; T amb =25 ° C; overall voltage gain (G v ) = 1; (R S =R R ); measured in Fig.2 with a 1 kHz signal.
AF input AF2 = AF1 = 0,5 V, pilot carrier input signal V 2-12(rms) = 16 mV, m = 0,5 and with adjusted de-matrix circuit;
unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply (pin 13)
Supply voltage range
V P =V 13-12
10,8
12
13,2
V
Supply current (without LED current)
I P =I 13
-
28
35
mA
Reference voltage (pin 11)
V ref
-
6
-
V
Input resistance (dynamic)
R 11-12
-
4
-
W
AF part
Amplification
G v
-
40
-
18
dB
Input signal at G v =1
V AF1 =V AF2
-
-
1
V
Mono AF input signal (pin 10); note 1
Input signal
V 10-12
-
-
2
V
DC input voltage level
V 10-12
-
6
-
V
Input resistance
R 10-12
16
-
W
Stereo mode
AF output port I
pin 22: right
pin 23: left
AF output port II
pin 20: right
pin 21: left
Output signal (THD
£
V ol
-
-
2
V
port II (V 21-12 =V 20-12 )
V oII
-
-
2
V
Weighted signal-to-noise ratio
of the AF signal switches
(in accordance with CCIR468/2)
(S
+
N)/N
65
-
dB
Unweighted signal-to-noise
(S
+
N)/N
60
-
-
dB
Total harmonic distortion
(V 20;21;22;23-12 = 0,5 V; G v = 1)
THD
-
0,05
-
%
Crosstalk attenuation (selective)
stereo mode (f 1 = 1 kHz; f 2 = 400 Hz)
a S
40
-
-
dB
dual sound mode (f = 250 Hz to 12,5 kHz)
a DS
60
-
-
dB
November 1987
5
k
k
0,5%)
port I (V 23-12 =V 22-12 )
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