TDA9115 查看數據表（PDF） - STMicroelectronics
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TDA9115 Datasheet PDF : 45 Pages
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TDA9115
6.4 HORIZONTAL SECTION
Vcc = 12V, Tamb = 25°C
Symbol
PLL 1
IRO
CCO
fHO
fHO(0)
fHOCapt
Parameter
Test Condit ions
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
150
29.9
122
Units
mA
pF
kHz
kHz
kHz
f--H--∆--O--f--H-(--0-O--)---(⋅--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
VHPosF
VHOThrLo
VHOThrHi
PLL 2
RIn(HFly)
IInHFly
VThrHFly
VS(0)
VBotHPLL2C
VTopHPLL2C
tph(min)/TH
Control voltage on HPosF pin
Bottom of hor. oscillator sawtooth(6)
Top of hor. oscillator sawtooth(6)
HPOS (Sad01):
11111111b
10000000b
00000000b
Input impedance on HFly input (2)
Current into HFly input
V(HFly) >VThrHFly
At top of H flyback pulse
Voltage threshold on HFly input
H flyback lock middle point(6)
No PLL2 phase modula-
tion
Low clamping voltage on HPLL2C pin(5)
High clamping voltage on HPLL2C pin(5)
Min. advance of H-drive OFF before
middle of H flyback(7)
Null asym. correction
tph(max)/TH
Max. advance of H-drive OFF before
middle of H flyback(8)
Null asym. correction
H-drive outpu t on pin HOut
IHOut
Current into HOut output
Output driven LOW
tHoff/TH
Duty cycle of H-drive signal
Picture geometry corrections through PLL1 & PLL2
tHph/TH
H-flyback (center) static phase vs. sync
signal (via PLL1), see Figure 7
Soft-start/Soft-stop value
HPOS (Sad01):
11111111b
00000000b
1.4
2.60
3.30
3.85
300
0.6
3.75
19.6
5.0
2.8
3.4
4.0
1.6
6.4
500
0.7
4.0
1.6
4.0
0
44
48
85
+11
-11
kHz/V
6.0
V
V
3.05 V
3.55 V
4.15 V
V
V
700 Ω
5
mA
V
V
V
4.25 V
%
%
30 mA
%
%
%
%
9/45
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