tda4855 NXP Semiconductors, tda4855 Datasheet - Page 15

• Manufacturer Part Number: tda4855
• Description: Autosync Deflection Controller Asdc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1996 Jul 18
PLL1 phase comparator and frequency-locked loop [HPLL1 (pin 26) and HBUF (pin 27)]
t
t
V
V
I
A
I
V
V
Horizontal oscillator [HCAP (pin 29) and HREF (pin 28)]
f
TC
f
V
PLL2 phase detector [HFLB (pin 1) and HPLL2 (pin 31)]
t
V
I
HSYNC(max)
lock(HPLL1)
load(HBUF)
HPOS
H(0)
H(max)
d(HFLB)
charge(HPLL2)
HPOS
f
HPLL1
HBUF
DJUSTMENT OF HORIZONTAL PICTURE POSITION
ref(HPOS)
off(HPOS)
HREF
PROT(HPLL2)
Autosync Deflection Controller (ASDC)
H(0)
PLL2
SYMBOL
maximum width of horizontal
sync pulse (referenced to line
period)
total lock-in time of PLL1
control voltage
buffered f/v voltage at HBUF
(pin 27)
maximum load current
horizontal shift adjustment
range (referenced to horizontal
period)
input current
reference voltage at input
picture shift is centred if HPOS
(pin 30) is forced to ground
free-running frequency without
PLL1 action (for testing only)
spread of free-running
frequency (excluding spread of
external components)
temperature coefficient of
free-running frequency
maximum oscillator frequency
voltage at input for reference
current
PLL2 control (advance of
horizontal drive with respect to
middle of horizontal flyback)
delay between middle of
horizontal sync and middle of
horizontal flyback
maximum voltage for PLL2
protection mode/soft start
charge current for external
capacitor during soft start
PARAMETER
f
f
notes 4 and 5
f
f
I
I
note 7
R
R
C
maximum advance
minimum advance
HPOS (pin 30) grounded
V
H
H
H(min)
H(max)
HSHIFT
HSHIFT
HPOS = +10.5%
HPOS = 10.5%
HPLL2
HBUF
HREF
HCAP
45 kHz; note 3
45 kHz; note 3
; note 6
15
CONDITIONS
; note 6
= ;
= 2.4 k ;
= 10 nF; note 5
= 0
= 135 A
3.7 V
0
30.53
2.43
36
110
100
MIN.
40
5.6
2.5
+10.5
0
5.1
31.45
0
2.55
7
200
4.4
15
10.5
120
TYP.
Preliminary specification
20
25
80
0.1
32.39
+100
130
2.68
MAX.
4.0
135
3.0
TDA4855
%
%
ms
V
V
mA
%
%
V
V
kHz
%
10
kHz
V
%
%
ns
V
A
A
A
UNIT
6
/K