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TDA2549
User Manual
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Philips TDA2549 User Manual

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Page 1
INTEGRATED CIRCUITS
DATA SH EET
TDA2549
I.F. amplifier and demodulator for multistandard TV receivers
Product specification File under Integrated Circuits, IC02
April 1985
Page 2
Philips Semiconductors Product specification
I.F. amplifier and demodulator for
TDA2549
multistandard TV receivers

GENERAL DESCRIPTION

The TDA2549 is a complete i.f. circuit with a.f.c., a.g.c., demodulation and video preamplification facilities for multistandard television receivers. It is capable of handling positively and negatively modulated video signals in both colour and black/white receivers.

Features

• Gain-controlled wide-band amplifier providing complete i.f. gain
• Synchronous demodulator for positive and negative modulation
• Video preamplifier with noise protection for negative modulation
• Auxiliary video input and output (75 Ω)
• Video switch to select between auxiliary video input signal and demodulated video signal
• A.F.C. circuit with on/off switch and inverter switch
• A.G.C. circuit for positive modulation (mean level) and negative modulation (noise gate)
• A.G.C. output for controlling MOSFET tuners

QUICK REFERENCE DATA

Supply voltage (pins 13 and 21) V Supply current (pins 13 and 21) I I.F. input signal at V
=2 V
o
(between pins 6 and 7) V
Video output voltage at V
=0 V
i
P=V13;21-3
P=I13;21-3
i=V6-7
(between pins 22 and 3) positive modulation V
negative modulation V Gain control range G Signal-to-noise ratio at V
= 10 mV S/N typ. 57 dB
i
A.F.C. output voltage swing (pin 15) V
o=V22-3 o=V22-3
v
15-3
Max. tuner a.g.c. output current
(pin 10) I
10
Video bandwidth (3 dB) B typ. 5,5 MHz Auxiliary video input voltage (pin 12)
= 2 V (peak-to-peak value) V
at V
o
12-3(p-p)
Auxiliary video output impedance
(pin 14) |Z
| typ. 7 Ω
14-3
Auxiliary video output voltage
(pin 14) V
14-3
typ. 12 V typ. 82 mA
typ. 50 µV
typ. 2 V typ. 4 V typ. 74 dB
min. 10 V
min. 0,3 mA
typ. 1 V
typ. 2 V

PACKAGE OUTLINE

24-lead DIL; plastic (SOT101A); SOT101-1; 1996 November 19.
Page 3
Philips Semiconductors Product specification
I.F. amplifier and demodulator for multistandard TV receivers
TDA2549
Fig.1 Block diagram.
Page 4
Philips Semiconductors Product specification
I.F. amplifier and demodulator for
TDA2549
multistandard TV receivers

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pins 13 and 21) V Storage temperature range T Operating ambient temperature range T
P stg amb

CHARACTERISTICS (measured in fig.5)

= 12 V; T
V
P
amb
=25°C
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
Supply voltage range V Supply current (pins 13 and 21) I I.F. input signal for V
=2 V
o
(between pins 6 and 7) V Input impedance (differential) |Z Input capacitance (differential) C
P
P
i=V6-7
| − 2 − kΩ
6-7
6-7
10,8 12 13,2 V
− 82 − mA
− 50 150 µV
− 2 − pF
Zero single output level
positive modulation V
negative modulation V Top sync output level V Gain control range G Signal-to-noise ratio at V
= 10 mV (note 1) S/N 50 57 − dB
i
22-3 22-3 22-3
v
1,6 2 2,3 V 3,7 4 4,3 V 1,7 2 2,3 V 50 74 − dB
Maximum video output amplitude for positive
modulation (peak-to-peak value) V
22-3(p-p)
4,5 −−V Bandwidth of video amplifier (3 dB) B − 5,5 − MHz Differential gain at V Differential phase at V Residual carrier signal (r.m.s. value) V
=2V dG − 410%
o
=2 V dϕ−210%
o
24-3(rms)
− 10 20 mV
Residual second harmonic of carrier signal
(r.m.s. value) V
24-3(rms)
− 20 60 mV
13,8 V
−25 to +125 °C
−25 to +70 °C
Page 5
Philips Semiconductors Product specification
I.F. amplifier and demodulator for
TDA2549
multistandard TV receivers
PARAMETER SYMBOL MIN. TYP. MAX. UNIT
A.F.C. output voltage swing V
15-3
Change of frequency required for a.f.c.
output voltage swing of 10 V ∆f − 70 200 kHz
A.F.C. switch off for a voltage lower than: V
17-3
A.F.C. inverter switch
positive a.f.c. (Fig.2) V negative a.f.c. (Fig.3) V
16-3 16-3
Tuner A.G.C.
Leakage current I
10
Saturation voltage
I
= 0,3 mA V
10
take-over point LOW V take-over point HIGH V
Signal expansion at G
= 50 dB ∆V
v
10-3 i i
22-3
Negative modulation (Fig.4)
white spot inverter threshold level V white spot insertion level V noise inverter threshold level V noise insertion level V
22-3 22-3 22-3 22-3
Positive modulation a.g.c. detector
reference level V
Auxiliary video input signal for V
=2 V V
o(p-p)
11-3 12-3
Auxiliary video output
output signal (note 2) V top sync level V output impedance |Z
14-3 14-3
| − 7 −Ω
14-3
Levels for video switches
positive video V negative video V internally demodulated signal V auxiliary video signal V
2-3 2-3 23-3 23-3
Notes to the characteristics
10 −−V
−−1,5 V
0 − 1,5 V
4 − 12 V
−−15 µA
− 0,1 0,3 V
−−3mV
10 −−mV
−−0,5 dB
− 4,6 − V
− 3,2 − V
− 0,9 − V
− 2,5 − V
3,0 3,2 3,4 V
0,7 1 1,4 V
− 1 − V
123V
−−1V
3 −−V
−−1V
3 −−V
V
black-to-white
1.
Signal to– noise ratio S/N–
o
=
----------------------------------------------------------­V
n rms()
at B 5 MHz=
2. Measured in application of Fig. 5.
Page 6
Philips Semiconductors Product specification
I.F. amplifier and demodulator for multistandard TV receivers
TDA2549
Fig.2 A.F.C. output voltage V
for positive a.f.c. Fig.3 A.F.C. output voltage V
15-3
for negative a.f.c.
15-3
Fig.4 Video output waveform showing white spot and noise inverter threshold levels.
Page 7
Philips Semiconductors Product specification
I.F. amplifier and demodulator for multistandard TV receivers

APPLICATION INFORMATION

TDA2549
Fig.5 Application diagram.
Page 8
Philips Semiconductors Product specification
I.F. amplifier and demodulator for multistandard TV receivers

PACKAGE OUTLINE

DIP24: plastic dual in-line package; 24 leads (600 mil)
D
seating plane
L
Z
24
e
b
TDA2549

SOT101-1

M
E
A
2
A
A
1
w M
b
1
13
c
(e )
1
M
H
pin 1 index
1
0 5 10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
A
A
UNIT
inches
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
max.
mm
OUTLINE
VERSION
SOT101-1
1 2
min.
max.
1.7
1.3
0.066
0.051
IEC JEDEC EIAJ
051G02 MO-015AD
b
b
1
0.53
0.38
0.021
0.015
0.32
0.23
0.013
0.009
REFERENCES
cD E e M
32.0
31.4
1.26
1.24
12
scale
14.1
13.7
0.56
0.54
E
(1)(1)
e
L
3.9
3.4
EUROPEAN
PROJECTION
M
15.80
15.24
0.62
0.60
E
17.15
15.90
0.68
0.63
1
0.15
0.13
H
w
0.252.54 15.24
0.010.10 0.60
ISSUE DATE
92-11-17 95-01-23
Z
max.
2.25.1 0.51 4.0
0.0870.20 0.020 0.16
(1)
Page 9
Philips Semiconductors Product specification
I.F. amplifier and demodulator for
TDA2549
multistandard TV receivers
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.
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.
(order code 9398 652 90011).
). If the printed-circuit board has been pre-heated, forced cooling may
stg max

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.
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