STV2247H View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STV2247H Datasheet PDF : 86 Pages
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STV224XH/228XH/223XH - ELECTRICAL CHARACTERISTICS
4.7.3 Bell Filter
Symbol
fBELL
QBP
Parameter
Center Frequency
Bell Quality Factor
Test Conditions
Register 11h, d4-d0 = 00000
Min.
4.27
14
Typ.
4.29
16
Max.
4.31
18
Unit
MHz
-
4.8 CHROMA PART
4.8.1 ACC
Symbol
Parameter
GACC
VMin.
ACC Control Range
Minimum Burst Signal Amplitude
4.8.2 ACC Overload
Symbol
Parameter
VTH Chroma regulation Threshold
Test Conditions
Change of burst overall ACC control
range < 2dB
Within the ACC control range
Test Conditions
ACC overload ON, PAL/NTSC
Min.
Typ.
26
0.03
Max.
Unit
dB
VPP
Min. Typ. Max. Unit
3
dB
4.8.3 Killer
Symbol
Ident-kill
Kill-Hyst
Parameter
Color on Threshold of ident. circuit
Color off Killer Hysteresis
Test Conditions
Burst amplitude on selected CVBS
input
Strong signal condition, S/N > 40 dB
Min.
Typ.
5
2
Max.
Unit
mVPP
mVPP
4.8.4 Chroma PLL
Symbol
Parameter
CaptR Catching Range
HoldR Holding Range
Test Conditions
With recommended crystal and rec-
ommended CLPF filter value.
Min. Typ. Max. Unit
±300
> or = to capture range
4.8.5 PLL Loop Filter (PAL/NTSC)
Symbol
Parameter
IC
Maximum Control Current
IL
Leakage Current
Frange-W Auto Flesh Control
Test Conditions
Min.
Color search mode (colour not ident.)
Color identified
Register 14(HEX), d6 = 1, d7 = 1
Typ. Max.
1000
350
5
±90
Unit
µA
µA
Deg
4.8.6 Hue Control
Symbol
Parameter
RHUE Hue Control Range
Test Conditions
Min. Typ. Max. Unit
±35 ±45 ±55 Deg
4.8.7 Automatic Flesh Control
Symbol
FleshNom.
Fcorr0
FMax.-N
Flesh-N
Frange-N
Parameter
Nominal Flesh Tint Phase
Phase Correction when Auto Flesh
ON
Maximum Phase Correction
Chroma Input Phase at Max. cor-
rection
Auto Flesh Control Range
Test Conditions
At FleshNom
Register 14(HEX), d6 = 1, d7 = 0
Register 14(HEX), d6 = 1, d7 = 0
Register 14(HEX), d6 = 1, d7 = 0
Min.
Typ. Max.
118
0
±10
±30
±60
Unit
Deg
Deg
Deg
Deg
Deg
35/86
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