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參數(shù)資料
| 型號： | TDA9112 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 偏轉(zhuǎn) |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封裝： | PLASTIC, SDIP-32 |
| 文件頁數(shù)： | 2/51頁 |
| 文件大小： | 809K |
| 代理商： | TDA9112 |
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TDA9112
10/51
6.4 - HORIZONTAL SECTION
Vcc = 12V, Tamb = 25°C
Symbol
Parameter
Test Conditions
Value
Units
Min.
Typ.
Max.
PLL1
IRO
Current load on RO pin
1.5
mA
CCO
Capacitance on CO pin
390
pF
fHO
Frequency of hor. oscillator
150
kHz
fHO(0)
Free-running frequency of hor. oscill. (1)
RRO=5.23k, CCO=820pF
27
28.5
29.9
kHz
fHOCapt
Hor. PLL1 capture frequency (4)
fHO(0) = 28.5kHz
29
122
kHz
Temperature drift of free-running freq. (3)
-150
ppm/°C
f
HO/VHO
Average horizontal oscillator sensitivity
fHO(0) = 28.5kHz
19.6
kHz/V
VHO
H. oscill. control voltage on pin HPLL1F
VRefO=8V
1.4
6.0
V
VHOThrfr
Threshold on H. oscill. control voltage on
HPLL1F pin for tracking of EW with freq.
VRefO=8V
5.0
V
VHPosF
Control voltage on HPosF pin
HPOS (Sad01):
1111111xb
1000000xb
0000000xb
2.6
3.2
3.8
2.8
3.4
4.0
3.0
3.6
4.2
V
VHOThrLo
Bottom of hor. oscillator sawtooth(6)
1.6
V
VHOThrHi
Top of hor. oscillator sawtooth(6)
6.4
V
PLL2
RIn(HFly)
Input impedance on HFly input
V(HFly) >VThrHFly
(2)
300
500
700
IInHFly
Current into HFly input
At top of H flyback pulse
5
mA
VThrHFly
Voltage threshold on HFly input
0.6
0.7
V
VS(0)
H flyback lock middle point(6)
No PLL2 phase modula-
tion
4.0
V
VBotHPLL2C
Low clamping voltage on HPLL2C pin(5)
1.6
V
VTopHPLL2C
High clamping voltage on HPLL2C pin(5)
3.9
4.05
4.2
V
tph(min)/TH
Min. advance of H-drive OFF before
middle of H flyback(7)
Null asym. correction
0
%
tph(max)/TH
Max. advance of H-drive OFF before
middle of H flyback(8)
Null asym. correction
44
%
H-drive output on pin HOut
IHOut
Current into HOut output
Output driven LOW
30
mA
tHoff/TH
Duty cycle of H-drive signal
HDUTY (Sad00):
x1111111b
x0000000b
Soft-start/Soft-stop value
27
65
85
%
Picture geometry corrections through PLL1 & PLL2
tHph/TH
H-flyback (centre) static phase vs. sync
signal (via PLL1), see Figure 7
HPOS (Sad01):
1111111xb
0000000xb
+11
-11
%
f
HO 0
()
f
HO 0
()
T
-----------------------------
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