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TDA3566A Datasheet PDF : 24 Pages
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Philips Semiconductors
PAL/NTSC decoder
Product specification
TDA3566A
SYMBOL
PARAMETER
CONDITIONS MIN.
TYP.
MAX. UNIT
V7
level at which the burst gate and
clamping pulse are separated
6.5 7.0
7.5
V
td
delay between black level clamping and
burst gating pulse
−
0.6
−
µs
Ii
input current
Vi = 0 to 1 V −
−
Vi = 1 to 8 V −
−
−1
mA
50
µA
Vi = 8 to 12 V −
−
2
mA
Black current stabilization
V18
∆V
I18
I18
V18
V18
R18
I10, 20, 21
DC bias voltage
difference between input voltage for
black current and leakage current
input current during black current
input current during scan
internal limiting at pin 18
switching threshold for black current
control on
input resistance during scan
DC input current during scan at pins 10,
20 and 21
maximum charge or discharge current
during measuring time
(pins 10, 20 and 21)
difference in drift of the blank level
note 11;
∆T = 40 °C
3.5 5.0
0.35 0.5
−
−
−
−
8.5 9.0
7.6 8.0
1.0 1.5
−
−
−
1
0
7.0
V
0.65
V
1
µA
10
mA
9.5
V
8.4
V
2.0
kΩ
30
nA
−
mA
20
mV
NTSC
V24-25
I24+25 (AV)
HUE
level at which the PAL/NTSC switch is
activated (pins 24 and 25)
average output current
(pin 24 plus pin 25)
hue control
note 14
see Fig.6
−
8.8
62
82.5
−
−
9.2
V
103
µA
−
Notes to the characteristics
1. Signal with the negative-going sync; amplitude includes sync pulse amplitude.
2. Indicated is a signal with 75% colour bar, so the chrominance-to-burst ratio is 2.2 : 1.
3. Nominal contrast is specified as the maximum contrast −5 dB and nominal saturation as maximum −6 dB. This figure
is valid in the PAL-condition. In the NTSC-condition no output signal is available at pin 28.
4. Cross coupling is measured under the following condition: input signal nominal, contrast and saturation such that
nominal output signals are obtained. The signals at the output at which no signal should be available must be
compared with the nominal output signal at that output.
5. The signal-to-noise ratio is defined as peak-to-peak signal with respect to RMS noise.
6. All frequency variations are referenced to the 4.4 MHz carrier frequency. All oscillator specifications have been
measured with the Philips crystal 4322 143 ... or 4322 144 ... series.
7. The change in burst with VP is proportional.
February 1994
12
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