TDA4850 查看數據表（PDF） - Philips Electronics
零件编号
产品描述 (功能)
生产厂家
TDA4850
Philips Electronics
TDA4850 Datasheet PDF : 20 Pages
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Philips Semiconductors
Horizontal and vertical deflection controller
for VGA/XGA and multi-frequency monitors
Product specification
TDA4850
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Horizontal output (open-collector); see Fig.3
V3
output voltage LOW
I3 = 20 mA
I3 = 60 mA
tp/tH
tH duty cycle
VP
threshold to activate too low supply voltage horizontal output off
protection
horizontal output on
Horizontal clamping/blanking generator output; see Fig.3
V8
output voltage LOW
H and V scanning
blanking output voltage
internal V blanking
external H blanking
clamping output voltage
H-sync on pin 9
I8
internal sink current for all output levels
H and V scanning
t8
clamping pulse start
tclp
clamping pulse width
S
steepness of rise and fall times
Vertical oscillator (Vref = 6.25 V)
fo
vertical free-running frequency
fV
nominal vertical sync range
V15
voltage on pin 15
td
delay between sync pulse and start of
vertical scan
in VGA/XGA mode, activated by an
external resistor on pin 7
in multi-frequency mode
I12
control current for amplitude control
C12
capacitor for amplitude control
R15 = 22 kΩ;
C16 = 0.1 µF
no fo adjustment
R15 = 22 kΩ
measured on pin 8
V7 < 50 mV
Vertical differential output; see Fig.4
Io
differential output current between
pins 5 and 6 (peak-to-peak value)
maximum offset current error
maximum linearity error
mode 3; I13 > −135 µA;
R15 = 22 kΩ
Io = 1 mA
−
−
0.3
−
−
0.8
42
45
48
−
5.3
−
−
5.6
−
−
−
0.9
1.8 2.1 2.4
1.8 2.1 2.4
3.5 3.9 4.3
2.3 2.9 3.5
with end of H-sync
0.8 1.0 1.2
−
40
−
40
42
43.3
50
−
110
2.8 3.0 3.2
500 575 650
240 300 360
−
±200 −
−
−
0.33
0.9 1.0 1.1
−
−
±2.5
−
−
±1.5
V
V
%
V
V
V
V
V
V
mA
µs
ns/V
Hz
Hz
V
µs
µs
µA
µF
mA
%
%
1997 Jun 05
10
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