tda4650 NXP Semiconductors, tda4650 Datasheet - Page 8

• Manufacturer Part Number: tda4650
• Description: Multistandard Colour Decoder, With Negative Colour Difference Output Signals
• Manufacturer: NXP Semiconductors

Philips Semiconductors
March 1991
Demodulator part (SECAM) (continued); note 1
Hue control part
V
R
Reference oscillator (PLL); note 2
R
C
f
Identification part
switching voltages for chrominance filters and crystals:
V
I
t
t
c
28 to 25
d
s
SYMBOL
V
V
V
17
28 to 25
17
19,21
19,21
Multistandard colour decoder, with
negative colour difference output signals
at pin 28 for PAL
at pin 27 for SECAM
at pin 26 for NTSC (3.58 MHz)
at pin 25 for NTSC (4.43 MHz)
1,3
1
3
/ T
/ T
/ V
P
shift of blanking levels relative to
demodulated f
phase shift of reference carrier
relative to phase at V
phase shift of reference carrier
phase shift of reference carrier
relative to phase at V
internal bias voltage
switching voltage for oscillator
adjustment
switching voltage for forced
colour ON
input resistance
input resistance
input resistance
catching range
switching voltages
output currents
delay time for system hold
delay time for colour ON
delay time for colour OFF
scanning time for each standard
PARAMETER
o
levels
17
17
= 3 V
= 3 V
V
V
V
burst OFF; colour ON
burst ON; colour ON
at 4.43 MHz
at 3.57 MHz
control voltage OFF state
control voltage ON state;
during scanning
control voltage ON state;
internal forced
control voltage ON state;
external forced
note 3
17
17
17
= 2 V
= 3 V
= 4 V
CONDITIONS
8
30
0
5.5
3.8
2.35
5.6
9.0
2
2
0
30
400
330
MIN.
0.16
0
40
3
5.0
350
0.05
2.45
5.8
-
4
0.25
40
TYP.
Preliminary specification
3
0.5
V
6.2
10
0.5
2.55
6.0
V
3
3
1
3
TDA4650
P
P
MAX.
5
mV/V
mV/K
mV/K
deg
deg
deg
V
V
V
k
pF
Hz
Hz
V
V
V
V
mA
cycles
cycles
cycles
cycles
UNIT