TDA9115 Просмотр технического описания (PDF) - STMicroelectronics
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TDA9115 Datasheet PDF : 45 Pages
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TDA9115
6.5 VERTICAL SECTION
VCC = 12V, Tamb = 25°C
Symbol
Parameter
Test Conditions
AGC-controlled vertical oscillator sawtooth; VRefO = 8V
RL(VAGCCap)
Ext. load resistance on
VAGCCap pin(10)
∆Vamp/Vamp(R=∞) ≤1%
VVOB
Sawtooth bottom voltage on
VCap pin(11)
No load on VOscF pin(11)
VVOT
Sawtooth top voltage on VCap
pin
AGC loop stabilized
V sync present
No V sync
tVODis
fVO(0)
fVOCapt
Sawtooth Discharge time
Free-running frequency
AGC loop capture frequency
CVCap=150nF
CVCap=150nF
CVCap=150nF
V----∆-V---V-O---V-a---mO-----pd---e(--1-v--6---)
∆----V-V---V--V--O-O----S-a---m-–---c-p--o----r
Sawtooth non-linearity(12)
S-correction range
∆----V-V---V--V--O-O----C-a---m-–----cp--o----r
C-correction range
AGC loop stabilized, (12)
AGC loop stabilized, (13)
tVR=1/4 TVR(15)
tVR=3/4 TVR
AGC loop stabilized, (14)
tVR=1/2 TVR(15)
CCOR(Sad0A):
x0000000b
x1000000b
x1111111b
Value
Units
Min. Typ. Max.
65
MΩ
1.8 1.9 2.0
V
5
V
4.9
V
80
µs
100
Hz
50
185 Hz
0.5
%
-5
%
+5
%
-3
%
0
%
+3
%
V-----V--∆-O---V--a--V-m---O--p---a-⋅--m-∆----pf--V----O--
Frequency drift of sawtooth
amplitude(17)(18)
AGC loop stabilized
fVOCapt(min)≤fVO≤fVOCapt(max)
Vertical outpu t drive signal (on pin VOut);VRefO = 8V
VPOS (Sad08):
Vmid(VOut)
Middle point on VOut sawtooth
x0000000b
x1000000b
x1111111b
Vamp
VoffVOut
IVOut
Amplitude of VOut sawtooth
VSIZE (Sad07):
x0000000b
(peak-to-peak voltage)
x1000000b
x1111111b
Level on VOut pin at V-drive ”off” I2Cbit VOutEn at 0
Current delivered by VOut out-
put
VVEHT
Control input voltage range on
VEHTIn pin
3.65
3.5
-5
1
200
ppm/Hz
3.2 3.3
V
3.5
V
3.8
V
2.25 2.5
V
3.0
V
3.75
V
3.8
V
5
mA
VRefO V
-V----a---m----∆p----V-⋅---∆a---m-V----pV----E----H----T- Breathing compensation
VVEHT>VRefO
V VEHT(mi n)≤VVEHT≤VRefO
0
%/V
2.5
%/V
Note 10: Value of acceptable cumulated parasitic load resistance due to humidity, AGC storage capacitor leakage, etc.,
for less than 1% of Vamp change.
11/45
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