TDA4820T Datasheet, PDF (2/10 Pages) NXP Semiconductors – Sync separation circuit for video applications

Philips Semiconductors
Sync separation circuit for video applications
Preliminary specification
TDA4820T
FEATURES
• Fully integrated, few external components
• Positive video input signal, capacitively coupled
• Operates with non-standard video input signals
• Black level clamping
• Generation of composite sync slicing level at 50% of
peak sync voltage
• Vertical sync separator with double slope integrator
• Delay time of the vertical output pulse is determined by
an external resistor
• Vertical sync generation with a slicing level at 40% of
peak sync voltage
• Output stage for composite sync
• Output stage for vertical sync
GENERAL DESCRIPTION
The TDA4820T is a monolithic integrated circuit including
a horizontal and a vertical sync separator, offering
composite sync and vertical sync extracted from the video
signal.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
V_P
I_P
V_2(p-p)
V_sync(p-p)
supply voltage range (pin 1)
supply current (pin 1)
input voltage amplitude (peak-to-peak value)
sync pulse input voltage amplitude (pin 2)
(peak-to-peak value)
V_o
maximum vertical sync output voltage (pin 6)
V_o
maximum composite sync output voltage
(pin 7)
V_o
T_amb
minimum output voltage (pins 6 and 7)
operating ambient temperature range
CONDITIONS
MIN.
10.8
−
0.2
50
TYP.
12
8
1
300
MAX.
13.2
12
3
500
UNIT
V
mA
V
mV
I₆ = −1 mA
I₇ = −3 mA
I_6,7 = 1 mA
10.0 −
10.0 −
−
−
0
−
−
V
−
V
0.6
V
+ 70 °C
ORDERING AND PACKAGE INFORMATION
EXTENDED
TYPE NUMBER
TDA4820T
PINS
8
PACKAGE
PIN POSITION
mini-pack
MATERIAL
plastic
Note
1. SOT96-1; 1997 January 08.
CODE
SO8; SOT96A ⁽¹⁾
June 1990
2