DATA SHEET
Product specification
File under Integrated Circuits, IC02
February 1992
INTEGRATED CIRCUITS
TDA4504B
Small signal combination for
multistandard colour TV
February 1992
2
Philips Semiconductors
Product specification
Small signal combination for multistandard colour TV
TDA4504B
FEATURES
Gain controlled vision IF amplifier
Synchronous demodulator for negative and positive
demodulation
AGC detector operating on peak sync amplitude for
negative demodulation and on peak white level for
positive demodulation
Tuner AGC
AFC circuit with two control polarities and on/off-switch
Video preamplifier
Video switch to select either the internal video signal or
an external video signal
Horizontal oscillator and synchronization circuit with two
control loops
Vertical synchronization (divider system), ramp
generator and driver with automatic amplitude
adjustment for 50 and 60 Hz
Transmitter identification (mute)
Sandcastle pulse generation
VCR/auto VCR switch
Start-up circuit
Vertical guard
GENERAL DESCRIPTION
Having the capability to demodulate IF signals with either
positive or negative-going video information, the
TDA4504B (Fig.1) is contained within a 32 pin
encapsulation. It includes a three-stage vision IF amplifier,
mute circuit, AFC and AGC circuitry, fully synchronised
horizontal and vertical timebases with drive circuits and
integral three-level sandcastle pulse generator.
A functional colour tv receiver can thus be realized with the
addition of a tuner, audio demodulator and amplifier,
chroma decoder and respective line and field deflection
circuitry.
ORDERING INFORMATION
Note
1. SOT201-1; 1996 November 29
EXTENDED
TYPE NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA4504B
32
DIL
plastic
SOT201
(1)
February 1992
3
Philips Semiconductors
Product specification
Small signal combination for multistandard
colour TV
TDA4504B
Fig.1 Block diagram.
February 1992
4
Philips Semiconductors
Product specification
Small signal combination for multistandard colour TV
TDA4504B
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
V
8
positive supply voltage pin 8
10
12
13.2
V
I
8
supply current pin 8
90
115
140
mA
I
12
start current pin 12
-
6.5
9
mA
Video
V
9-10
IF sensitivity (RMS value)
25
40
65
V
G
9-10
IF gain control range
-
74
-
dB
S/N
signal to noise ratio
V
i
input signal =
10 mV
-
58
-
dB
V
21
AFC output voltage swing
10.5
-
11.5
V
video output amplitude
-
2
-
V
Video switch
16
(p-p)
internal video input
-
2
-
V
V
13(p-p)
external video input
-
1
-
V
V
15(p-p)
video output
-
2.5
-
V
Sync
V
28
sync pulse input amplitude (p-p)
200
-
-
mV
I
30
flyback input current
0.1
-
2
mA
V
30
sandcastle output during burst key
8
-
-
V
- during hor. blanking
4
4.4
5
V
- during vert. blanking
2.1
3.3
3.7
V
V
14
video transmitter identification
- no signal condition
-
0.3
-
V
- 50 Hz signal
-
12
-
V
- 60 Hz signal
-
9
-
V
V
5
vert. feedback
- DC voltage
2.9
3.3
3.7
V
V
5(p-p)
- AC voltage
-
1
-
V
February 1992
5
Philips Semiconductors
Product specification
Small signal combination for multistandard colour TV
TDA4504B
PINNING
PIN
DESCRIPTION
1
black level internal video
2
AGC take over (output)
3
vertical ramp generator (output)
4
vertical drive (output)
5
vertical feedback (input)
6
tuner AGC (input)
7
ground
8
supply voltage
9
vision IF (input)
10
vision IF (input)
11
IF AGC (output)
12
start horizontal oscillator (output)/AFC polarity switch (input)
13
external video (input)
14
mute/50 / 60 Hz (output)
15
video switch (output)
16
internal video (input)
17
VCR switch (input)
18
video switch (input)
19
ground for some critical parts
20
video amplifier (output)
21
AFC (output)
22
AFC S/H, AFC switch (input)
23
vision demodulator tuned circuit
24
vision demodulator tuned circuit
25
coincidence detector/transmitter identification
26
horizontal oscillator
27
phase 1 detector (output)
28
sync separator (input)
29
horizontal drive (output)
30
sandcastle output/horizontal flyback (input)
31
phase 2 detector (output)
32
AGC system switch (input)
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