STV9118 查看數據表（PDF） - STMicroelectronics
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STV9118 Datasheet PDF : 46 Pages
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STV9118
7.4 - HORIZONTAL SECTION
Vcc = 12V, Tamb = 25°C
Sy m b o l
PL L 1
IRO
CCO
fHO
fHO(0)
fHOCapt
Par am et er
Test Conditions
Min.
Current load on RO pin
Capacitance on CO pin
390
Frequency of hor. oscillator
Free-running frequency of hor. oscill. (1) RRO=5.23kΩ, CCO=820pF 27
Hor. PLL1 capture frequency (4)
fHO(0) = 28.5kHz
29
Value
Typ.
28.5
Max.
1.5
100
29.9
122
Un i t s
mA
pF
kHz
kHz
kHz
-----∆---f--H----O-----(--0---)----
fHO(0) ⋅ ∆T
Temperature drift of free-running freq. (3)
-150
ppm/°C
∆fHO/∆VHO
VHO
VHOThrfr
Average horizontal oscillator sensitivity fHO(0) = 28.5kHz
H. oscill. control voltage on pin HPLL1F VRefO=8V
Threshold on H. oscill. control voltage on
HPLL1F pin for tracking of EW with freq.
VRefO=8V
19.6
kHz/V
1.4
6.0
V
5.0
V
VHPosF
Control voltage on HPosF pin
HPOS (Sad01):
1111111xb
1000000xb
0000000xb
2.8
V
3.4
V
4.0
V
VHOThrLo
VHOThrHi
Bottom of hor. oscillator sawtooth(6)
Top of hor. oscillator sawtooth(6)
1.6
V
6.4
V
PL L 2
RIn(HFly)
Input impedance on HFly input
V(HFly) >VThrHFly (2)
300 500 700 Ω
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
VTopHPLL2C
Low clamping voltage on HPLL2C pin(5)
High clamping voltage on HPLL2C pin(5)
1.6
V
4.0
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
tHoff/TH
Current into HOut output
Duty cycle of H-drive signal
Output driven LOW
HDUTY (Sad00):
x1111111b
x0000000b
Soft-start/Soft-stop value
30 mA
27
%
65
%
85
%
Picture geometry corrections through PLL1 & PLL2
tHph/TH
H-flyback (center) static phase vs. sync
signal (via PLL1), see Figure 7
HPOS (Sad01):
1111111xb
0000000xb
+11
%
-11
%
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