Datasheet TDA2545A Datasheet (Philips)

Page 1
INTEGRATED CIRCUITS
DATA SH EET
TDA2545A
Quasi-split-sound circuit
Product specification File under Integrated Circuits, IC02
February 1985
Page 2
Quasi-split-sound circuit TDA2545A

GENERAL DESCRIPTION

The TDA2545A is a monolithic integrated circuit for quasi-split-sound processing in television receivers.

Features

3-stage gain controlled i.f. amplifier
A.G.C. circuit
Reference amplifier and limiter amplifier for vision carrier (V.C.) processing
Linear multiplier for quadrature demodulation

QUICK REFERENCE DATA

Supply voltage (pin 11) V Supply current (pin 11) I Minimum i.f. vision carrier input voltage (r.m.s. value) V Output voltage; 5,5 MHz (r.m.s. value) V Output voltage; 5,742 MHz (r.m.s. value) V I.F. control range G
= V
P
11-13
= I
P
11 VC1-16(rms) 12-13(rms) 12-13(rms)
v
typ. 12 V typ. 45 mA typ. 150 µV typ. 100 mV typ. 45 mV typ. 64 dB
Signal-to-weighted-noise (rel. to 1 kHz; 30 kHz deviation)
at 5,5 MHz at 5,742 MHz S + W/W typ. 56 dB
for 2T/20T pulses with white bars
S + W/W typ. 58 dB

PACKAGE OUTLINES

16-lead DIL; plastic (SOT38); SOT38-1; 1996 November 19.
February 1985 2
Page 3
Philips Semiconductors Product specification
Quasi-split-sound circuit TDA2545A
(1) I.F. signal: vision carrier (V.C.) and sound carrier (S.C.).
Fig.1 Block diagram.

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pin 11) V Storage temperature range T Operating ambient temperature range T
= V
P stg amb
max. 13,2 V
11-13
25 to + 150 °C 0to+70 °C
February 1985 3
Page 4
Philips Semiconductors Product specification
Quasi-split-sound circuit TDA2545A

CHARACTERISTICS

V
= V
P
Vision carrier (V.C.) modulated with different video signals (see below); modulation depth 100% (proportional to 10% residual carrier). Vision carrier amplitude (r.m.s. value) is V Vision-to-sound carrier ratios are VC/SC1 = 13 dB and VC/SC2 = 20 dB. Sound carriers (SC1, SC2) modulated with f = 1 kHz and deviation f= ±30 kHz. For measuring circuit see Fig.2; unless otherwise specified.
Supply (pin 11)
Supply voltage V Supply current I
I.F. amplifier
Input voltage for start of gain control
(intercarrier signals 3 dB) V
Input voltage for end of gain control
(intercarrier signals + 1 dB) V I.F. gain control range G Control voltage range (see Fig.3) V Input resistance R Input capacitance C
Intercarrier generation
Output voltage; 5,5 MHz (r.m.s. value) V Output voltage; 5,742 MHz (r.m.s. value) V D.C. output voltage V Allowable d.c. load resistance at the output R Allowable output current I
Intercarrier signal-to-noise (see note 1) (measured behind the FM demodulators)
weighted according to CCIR 468-2, quasi-peak a. 2T/20T pulses with white bars (see also Fig.4)
at 5,5 MHz S+W/W 53 58 dB
at 5,742 MHz S+W/W 51 56 dB b. 6 kHz sinewave
at 5,5 MHz S+W/W 50 53 dB
at 5,742 MHz S+W/W 50 53 dB c. black level (sync pulses only)
at 5,5 MHz S+W/W 60 65 dB
at 5,742 MHz S+W/W 58 63 dB
11-13
= 12 V; T
= 25 °C; measured at fVC = 38,9 MHz, f
amb
= 10 mV.
VC
= 33,4 MHz, f
SC1
= 33,158 MHz:
SC2
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
= V
P
11-13
= I
P
11
VC1-16(rms)
VC1-16(rms)
v 3-13 1-16 1-16
12-13(rms) 12-13(rms) 12-13 12-13
12
10,8 12 13,2 V 33 45 55 mA
150 200 µV
100 250 mV 60 64 dB 4 V
p
2,5 k
1,5 pF
60 100 140 mV 27 45 63 mV
5,9 V 7 −−k
−−1mA
V
Note
1. Incidental phase on the vision carrier, caused by TV transmitter, has to be less than 0,5 degrees for black to white transient (equivalent to S+W/W = 56 dB for 6 kHz sinewave).
February 1985 4
Page 5
Philips Semiconductors Product specification
Quasi-split-sound circuit TDA2545A
Fig.2 Measuring circuit for TDA2545A.
Fig.3 Control voltage at pin 3 as a function of the input voltage V
February 1985 5
VC1-16(rms).
Page 6
Philips Semiconductors Product specification
Quasi-split-sound circuit TDA2545A
Fig.4 Signal-to-weighted-noise ratio depending on video modulation.
February 1985 6
Page 7
Philips Semiconductors Product specification
Quasi-split-sound circuit TDA2545A

PACKAGE OUTLINES

DIP16: plastic dual in-line package; 16 leads (300 mil); long body
D
seating plane
L
Z
16
pin 1 index
e
b
b
1
9
A
1
w M

SOT38-1

M
E
A
2
A
c
(e )
1
M
H
E
1
0 5 10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
UNIT
mm
inches
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
A
max.
4.7 0.51 3.7
OUTLINE VERSION
SOT38-1
min.
A
1 2
max.
0.15
IEC JEDEC EIAJ
050G09 MO-001AE
b
1.40
1.14
0.055
0.045
b
0.53
0.38
0.021
0.015
1
cEe M
0.32
0.23
0.013
0.009
REFERENCES
(1) (1)
D
21.8
21.4
0.86
0.84
February 1985 7
8
6.48
6.20
0.26
0.24
e
0.30
1
0.15
0.13
M
L
3.9
3.4
E
8.25
7.80
0.32
0.31
EUROPEAN
PROJECTION
H
9.5
0.2542.54 7.62
8.3
0.37
0.010.100.0200.19
0.33
ISSUE DATE
w
92-10-02 95-01-19
Z
max.
2.2
0.087
(1)
Page 8
Philips Semiconductors Product specification
Quasi-split-sound circuit TDA2545A
SOLDERING Introduction
There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities. In these situations reflow soldering is often used.
This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our
“IC Package Databook”
Soldering by dipping or by wave
The maximum permissible temperature of the solder is 260 °C; solder at this temperature must not be in contact with the joint for more than 5 seconds. The total contact time of successive solder waves must not exceed 5 seconds.
The device may be mounted up to the seating plane, but the temperature of the plastic body must not exceed the specified maximum storage temperature (T be necessary immediately after soldering to keep the temperature within the permissible limit.
(order code 9398 652 90011).
). If the printed-circuit board has been pre-heated, forced cooling may
stg max
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the lead(s) of the package, below the seating plane or not more than 2 mm above it. If the temperature of the soldering iron bit is less than 300 °C it may remain in contact for up to 10 seconds. If the bit temperature is between 300 and 400 °C, contact may be up to 5 seconds.

DEFINITIONS

Data sheet status
Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
February 1985 8
Loading...