TDA4650 Datasheet, PDF (2/13 Pages) NXP Semiconductors – Multistandard colour decoder, with negative colour difference output signals

Philips Semiconductors
Multistandard colour decoder, with negative
colour difference output signals
Preliminary specification
TDA4650
FEATURES
Identifies and demodulates PAL,
SECAM, NTSC 3.58 and NTSC 4.43
chrominance signals with:
• Identification
– automatic standard identification
by sequential inquiry
– secure SECAM identification at
50 Hz only, with PAL priority
– four switched outputs for
chrominance filter selection and
display control
– external service switch for
oscillator adjustment
• PAL / NTSC demodulation
– H (burst) and V blanking
– PAL switch (disabled for NTSC)
– NTSC phase shift (disabled for
PAL)
– PLL-controlled reference
oscillator
– two reference oscillator crystals
on separate pins with automatic
switching
– quadrature demodulator with
subcarrier reference
• SECAM demodulation
– limiter-amplifier
– quadrature-demodulator with a
single external reference tuned
circuit
– alternate line blanking, H and V
blanking
– de-emphasis
• Gain controlled chrominance
amplifier
• ACC demodulation controlled by
system scanning
• Internal colour-difference signal
output filters to remove the residual
subcarrier
GENERAL DESCRIPTION
The TDA4650 is a monolitic
integrated multistandard colour
decoder for PAL, SECAM and NTSC
(3.58 and 4.43 MHz) with negative
colour difference output signals. The
colour-difference output signals are
fed to the TDA4660/TDA4661,
Switched capacitor delay line.
QUICK REFERENCE DATA
SYMBOL
V_p
I_p
v_i(p-p)
V_o(p-p)
PARAMETER
supply voltage range (pin 13)
supply current
(pin 13)
chrominance input voltage (pin 15)
(peak-to-peak value)
colour-difference output voltage (pin 1)
(peak-to-peak value)
colour-difference output voltage (pin 3)
(peak-to-peak value)
colour-difference output voltage (pin 1)
(peak-to-peak value)
colour-difference output voltage (pin 3)
(peak-to-peak value)
CONDITIONS
MIN.
10.8
−
TYP.
12.0
60
MAX.
13.2
−
UNIT
V
mA
20
100
400
mV
PAL/NTSC
0.42 0.525 0.66 V
PAL/NTSC
0.53 0.665 0.84 V
SECAM
0.83 1.05 1.32 V
SECAM
1.06 1.33 1.67 V
ORDERING INFORMATION
EXTENDED
TYPE NUMBER
TDA4650
TDA4650WP
PINS
28
28
Note
1. SOT117-1; 1996 November 28.
2. SOT261-2; 1996 November 28.
PIN POSITION
DIL
PLCC
PACKAGE
MATERIAL
plastic
plastic
CODE
SOT117⁽¹⁾
SOT261⁽²⁾
March 1991
2