Page 1
TDA4453
Video IF Amplifier for Multistandard TV Receiver and VTR
Appliances
Technology: Bipolar
Features
D
Interference suppression
D
Standard B/G-L suitable, processes negatively and
positively modulated IF-signals with equal polarity of
the output signal
D
Ultra white inverter and ultra black limiter for
reducing transmission interference
D
Internally noise protected gain control, no flyback
pulses required
D
Expanded video frequency response allows the
demodulation of amplitude modulated MAC signals
D
High input sensitivity
D
Minimal intermodulation interference
D
Fast AGC by controlled discharge of the
AGC capacitor
Standard L mode: AGC acting on peak white level,
capacitor discharge control by averaged video signal
Standard B/G: AGC acting on the sync. pulse peak
D
Small differential error
D
Constant input impedance
D
Video output voltage with narrow tolerance
D
Adapted output for insertion of ceramic transducers as
intrinsic sound trap
D
Connecting and basic circuitry compatible to the
TEMIC video IF type programme - permits building
block system for video IF module
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
Figure 1. Block diagram
1 (7)
Page 2
TDA4453
Pin Description
Pin Function
1,16 IF-input
2 Standard switch: open B/G
ground L
3,15 Ground
4 IF-AGC storage capacitor
5 AGC (tuner control)
6 Tuner AGC take over
Circuit Description
The following function units are integrated in this circuit
combination for video-IF processing:
D
Three symmetric, highly stable, gain controlled wideband amplifier, quasi galvanic coupling eliminates
feed back
D
Video carrier controlled demodulator of high linearity
D
Polarity switch over for video
Pin Function
7 Not connected
8,9 Demodulator circuit
10 Average capacitor standard L
11 Video output
12 Not connected
13 Supply voltage
14 Not connected
D
Video output amplifier with low-pass characteristics,
limiter for ultra black and inverter for ultra white
interference
D
High impedance, interference free controlled voltage
facilities, best possible AGC time constant with small
storage capacitor
D
Controlled discharge circuit for fast gain control
D
With VTR - operation the video output level is
according to the ultra white level in B/G, ultra black
level in L
Absolute Maximum Ratings
Reference point Pin 3, unless otherwise specified
Parameters Symbol Value Unit
Supply voltage Pin 13 V
Supply current Pin 13 I
Open loop voltage Pin 5 V
External voltage Pin 4
Pin 11
Breaking current for VTR operation Pin 4 I
Video output current
Max. load Pin 11
Short circuit max 1 s Pin 11
Power dissipation T
Junction temperature T
Ambient temperature range T
Storage temperature range T
≤ 60°C P
amb
Thermal Resistance
Parameters Symbol Maximum Unit
Junction ambient R
V
V
I
amb
thJA
O
tot
stg
S
S
5
4
11
4
j
10 to 13.5 V
65 mA
V
S
10
8
0.3 mA
5
30
1.0 W
125 °C
–25 to +70 °C
–25 to +125 °C
60 K/W
V
V
mA
2 (7)
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
Page 3
TDA4453
Electrical Characteristics
Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit
Supply current Pin 13 I
Ultra white level at
1)
Pin 11 V
S
o
4.8 5.2 5.6 V
standard B/G
Ultra black clamping level
Pin 11 V
o
1.75 1.9 2.05 V
at standard B?G
Composite video output
2)
Pin 11 v
o(pp)
2.7 3.0 3.3 V
signal B/G
Video signal standard L 3)(black/white) Pin 11 v
Difference of the video
Pin 11 10 %
o(pp)
1.85 2.1 2.35 V
signals standard L-B/G
Clamping level of black
Pin 11 V
11
limiter
Threshold of the ultra
white
Grey level of the ultra
Pin 11 V
Pin 11 V
11
11
white inverter
Supply voltage influence
Pin 11 ∆V
black
on the ultra black level in
standard B/G
Supply voltage influence
Pin 11 ∆V
white
on the ultra white level in
standard B/G
Video bandwidth (–3 dB) Pin 11 B
Video frequency response
Pin 11 ∆V
Video
Video
over the AGC control
range
Output DC current V11= 8 V Pin 11 I
Response time of the
4)
Pin 4 t
11
r
peak white control in
standard L
Voltage level standard
5)
Pin 2 V
2
2 V
B/G
Voltage level standard L
Input sensitivity
6)
(symmetrical)
5)
v
=3.0 V Pin
14(pp)
Pin 2 V
2
v
i
0 1.2 V
1–16
V
= 0.8 V
4
IF-AGC gain reduction ∆P 60 dB
Available tuner AGC 10 dB via AGC use
I
5
3 4 mA
Pin 5
Automatic tuner AGC with
IF-control
Pin 6 not connected
Pin 5
AGC 61 dB
65 mA
250 mV below sync. (typ.)
3.6 V
0.5 %/V
1.0 %/V
10 MHz
2.0 dB
2.8 mA
10
S
100
m
s
V
m
V
1)
All measurements Pin 11 without load
2)
Residual carrier 10%
3)
Blanking level 30% carrier amplitude
4)
A peak white value for at least 10 ms must be transmitted for each complete frame
5
) Direct control of standard reversing switch with TTL level
6)
Sync. peak value standard B/G
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
3 (7)
Page 4
TDA4453
Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit
IF-residual voltage at the
video output in the AGC
area
Differential gain error d 3 5 %
Differential phase error
Sound-chroma beat (1.07 MHz intermodulation) relat-
ing to demodulated auxiliary colour carrier
Video carrier = 0 dB
Colour carrier = –6 dB
Sound carrier = –24 dB
Upsetting factor sync.
pulse
Input impedance Pin
Video switch
Control voltage RF operation
f = 38.9 MHz Pin 11
f = 77.8 MHz
1–16
VTR operation
v 10
ö
a
IM
D
V
Sync
V
Sync
R
i
C
i
V4
I
4
8 10
20
3 5 degree
50 dB
3 %
1.6
2
150
mV
k
W
pF
V
m
A
4 (7)
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
Page 5
TDA4453
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
Figure 2. Test circuit
5 (7)
Page 6
TDA4453
Dimensions in mm
Package: 16-pin dual inline plastic
Case
20A16 DIN 41866
JEDEC M0 001 AC
6 (7)
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
Page 7
TDA4453
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol ( 1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of
continuous improvements to eliminate the use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain
such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,
directly or indirectly, any claim of personal damage, injury or death associated with such unintended or
unauthorized use.
TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423
TELEFUNKEN Semiconductors
Rev . A1, 15-Aug-96
7 (7)
Loading...