INTEGRATED CIRCUITS
DATA SHEET
TDA4510
PAL decoder
Product specification
File under Integrated Circuits, IC02
March 1986
Philips Semiconductors
Product specification
PAL decoder
GENERAL DESCRIPTION
TDA4510
The TDA4510 is a colour decoder for the PAL standard, which is pin sequent compatible with multistandard decoder
TDA4555 and also pin compatible with NTSC decoder TDA4570. It incorporates the following functions:
Chrominance part
•
Gain controlled chrominance amplifier with operating point control stage
•
Chrominance output stage for driving the 64
µs
delay line
•
Blanking circuit for the colour burst signal
•
Automatic chrominance control (ACC) with sampled rectifier during burst-key
Oscillator and control voltage part
•
Reference oscillator for double subcarrier frequency
•
Gated phase comparison
•
Identification demodulator and automatic colour killer
•
Sandcastle pulse detector
•
Service switch
Demodulator part
•
Two synchronous demodulators for the (B-Y) and (R-Y) signals
•
PAL flip-flop and PAL switch
•
Colour switching stages
•
Separate colour switching output
•
(B-Y) and (R-Y) signal output stages
•
Internal filtering of residual carrier
QUICK REFERENCE DATA
Supply voltage
Supply current
Chrominance input signal (peak-to-peak)
Chrominance output signal (peak-to-peak)
Colour difference output signals (peak-to-peak values)
−(R-Y)
signal
−(B-Y)
signal
Sandcastle pulse, required amplitude for
burst gating level
horizontal pulse separation
vertical and horizontal pulse separation
PACKAGE OUTLINE
16-lead DIL; plastic (SOT38); SOT38-1; 1996 November 26.
V
15-3
V
15-3
V
15-3
typ.
typ.
typ.
7,7
4,5
2,5
V
V
V
V
1-3(p-p)
V
2-3(p-p)
typ.
typ.
1,05 V
±
2 dB
1,33 V
±
2 dB
V
P
= V
7-3
I
P
= I
7
V
9-3(p-p)
V
6-3(p-p)
typ.
typ.
typ.
12
50
10 to 400
1,6
V
mA
mV
V
March 1986
2
March 1986
Philips Semiconductors
PAL decoder
3
Product specification
External capacitors in Fig.1
C1 filter capacitor for control voltage (pin 10)
C2 filter capacitor for identification signal (pin 14)
TDA4510
Fig.1 Block diagram.
Philips Semiconductors
Product specification
PAL decoder
FUNCTIONAL DESCRIPTION
DIVIDER STAGES
TDA4510
The divider stages provide
−(R-Y)
and
−(B-Y)
reference signals with the correct 90 degrees relation for the demodulators.
PHASE COMPARATOR
The phase comparator compares the
−(R-Y)
reference signal with the burst pulse and controls the frequency and phase
of the reference oscillator.
IDENTIFICATION DEMODULATOR
The identification demodulator delivers a positive going identification signal for PAL-signals at pin 14, also used for the
automatic colour-killer.
SERVICE SWITCH
The service switch has two functions. The first position (V
14-3
<
1 V) allows the adjustment of the reference oscillator.
Therefore the colour is switched on and the burst for the oscillator PLL is switched off. The second position (V
14-3
>
5 V)
switches the colour on and the output signals can be observed.
SANDCASTLE PULSE DETECTOR
Sandcastle pulse detector for burst-gate, line and blanking (horizontal and vertical) pulse detection. The vertical part of
the sandcastle pulse is needed for the internal colour-on and colour-off delay.
PULSE PROCESSING PART
Pulse processing part which shall prevent a premature switching on of the colour. The colour-on delay, two or three field
periods after identification of the PAL signal, is achieved by a counter. The colour is switched off immediately or at the
latest one field period after disappearance of the identification voltage.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage range
Currents
at pins 1 and 2
at pin 6
at pin 16
Total power dissipation
Storage temperature
Operating ambient temperature
−I
1,2
−I
6
−I
16
P
tot
T
stg
T
amb
max.
max.
max.
max.
5
15
5
800
mA
mA
mA
mW
°C
V
P
= V
7-3
10,8 to 13,2
V
−25
to
+
150
°C
0 to
+
70
March 1986
4
Philips Semiconductors
Product specification
PAL decoder
CHARACTERISTICS
V
P
= 12 V; T
amb
= 25
°C;
measured in Fig.2 unless otherwise specified
PARAMETER
Supply current
Chrominance part
Input voltage range (peak-to-peak value)
Nominal input voltage (peak-to-peak value)
with 75% colour bar signal
Input impedance
Input capacitance
Colour ON
Chrominance output voltage (peak-to-peak)
with 75% colour bar signal
d.c. voltage at chrominance output
Oscillator and control voltage part
Oscillator frequency
Input resistance
Catching range
(depending on RC-network at pin 12)
Control voltage
without burst signal
colour on switching threshold
hysteresis of colour switching
flip-flop correction (FFC) voltage
hysteresis of FFC
Colour-on delay
Colour-off delay
First service position (PLL is inactive
for oscillator adjustment, colour on)
second service position (colour on)
Colour switching output (open npn emitter)
output current
colour-on voltage
colour-off voltage
−I
16
V
16-3
V
16-3
−
−
−
−
6
0
5
−
−
V
11-3
V
11-3
0
5
−
−
1
−
V
14-3
V
14-3
V
14-3
V
14-3
V
14-3
−
−
−
−
−
2
0
6,0
6,6
150
5,5
170
−
−
−
−
−
−
−
3
1
f
±400
−
−
f
o
R
13-3
−
−
8,8
350
−
−
V
6-3(p-p)
V
6-3
−
−
1,6
8,2
−
−
V
9-3(p-p)
Z
9-3
C
9-3
−
−
−
100
3,3
4
−
−
−
V
9-3(p-p)
10
−
SYMBOL
I
7
MIN.
−
TYP.
50
TDA4510
MAX.
−
UNIT
mA
400
mV
mV
kΩ
pF
V
V
MHz
Ω
Hz
V
V
mV
V
mV
f.p.
(1)
f.p.
(1)
V
V
mA
V
V
March 1986
5
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