TDA2579C View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA2579C
Philips Electronics
TDA2579C Datasheet PDF : 24 Pages
| |||
Philips Semiconductors
Synchronization circuit with synchronized
vertical divider system for 60 Hz
Preliminary specification
TDA2579C
SYMBOL
PARAMETER
CONDITIONS
Flyback input pulse (pin 12)
V12
I12
V12(p-p)
R12
td
switching voltage level
input current
input pulse (peak-to-peak value)
input resistance
phase position without shift; time between
the middle of the sync pulse at pin 5 and the
middle of the horizontal blanking pulse at
pin 17
Vertical ramp generator (pin 3)
tc
I3
V3
V3(p-p)
charge current pulse width
charge current
top level ramp signal voltage divider in
60 Hz mode
ramp amplitude (peak-to-peak value);
R4 = 330 kΩ; fV = 60 Hz
Current source (pin 4)
V4
output voltage
I4
allowed current range
TC
temperature coefficient output voltage
Current source (pin 3)
I3/4
current ratio pin 3/pin 4
TC
temperature coefficient I3
Comparator (pin 2)
V2
input voltage DC level
V2(p-p)
input voltage AC level (peak-to-peak value)
I2
input current
Vertical output stage (pin 1) npn emitter follower
V1
maximum output voltage
RS
sync separator resistor
Isink
continuous sink current
Vertical guard circuit (pin 2)
V2H
active switching level HIGH
V2L
active switching level LOW
note 12
C3 = 150 nF; note 12
I4 = 20 µA
Tamb = 25 to 70 °C
I4 = 40 µA
I4 = 35 µA; V3 = 2 V
I4 = 40 µA; R4 fixed
R4 = 330 kΩ;
C3 = 150 nF
R4 = 330 kΩ;
C3 = 150 nF
V2 = 0 V
I1 = +1.5 mA; note 12
V17 = 2.5 V; note 12
V17 = 2.5 V; note 12
MIN.
−
0.2
−
−
2.1
−
−
4.55
−
7
10
−
−
−
0.98
−
−
5
−
−
>1.7
<0.25
TYP.
0.9
−
−
3.5
2.5
26tclk
3
4.85
2.5
7.5
−
50
1.05
100
1.075
0.8
−
5.5
170
0.25
1.85
0.35
MAX. UNIT
−
V
3
mA
12
V
−
kΩ
2.9
µs
−
−
mA
5.25 V
−
V
7.9
V
75
µA
−
10-6/K
−
−
10-6/K
1.17 V
−
V
1
µA
6.3
V
−
Ω
−
mA
2.0
V
0.45 V
January 1994
14
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