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STV2246C 数据表(PDF) 31 Page - STMicroelectronics

部件名 STV2246C
功能描述  I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR
PDF  76 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV2246C 数据表(HTML) 31 Page - STMicroelectronics

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STV223XD/224XC - ELECTRICAL CHARACTERISTICS
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4.7 FILTERS
Y TRAP FILTER
CHROMINANCE BANDPASS
CLOCHE FILTER
4.8 CHROMA PART
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
fTRAP-PN
Notch Frequency
PAL/NTSC
fOSC
MHz
fTRAP-S
Notch Frequencies
SECAM fnb
SECAM fnr
4.2
4.5
MHz
fTRAP-ACC Notch Frequency Accuracy
3.5
%
QTRAP
Trap Quality Factor
Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking
Min.
1.5
-
CrejPN
Color Subcarrier Rejection
PAL/NTSC
20
dB
CrejS
Color Rejection in SECAM Mode
From 4.1 to 4.6 MHz
At 3.9 MHz
10
20
dB
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
fBP
Center Frequency
Register 12h, d3-d0 = 0000
-5%
fOSC
+5%
MHz
QBP
Bandpass Quality Factor
2.8
3.5
4.2
-
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
fCLOCHE
Center Frequency
Register 11h, d4-d0 = 00000
4.27
4.29
4.31
MHz
QBP
Cloche Quality Factor
14
16
18
-
ACC
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
GACC
ACC Control Range
Change of burst overall ACC control
range < 2dB
26
dB
VMin.
Minimum Burst Signal Amplitude
Within the ACC control range
0.03
VPP
ACC OVERLOAD
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
VTH
Chroma regulation Threshold
ACC overload ON, PAL/NTSC
3
dB
KILLER
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
Ident-kill
Color on Threshold of ident. circuit
Burst amplitude on selected CVBS
input
5
mVPP
Kill-Hyst
Color off Killer Hysteresis
Strong signal condition, S/N > 40 dB
2
mVPP
CHROMA PLL
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
CaptR
Catching Range
With recommended crystal and rec-
ommended CLPF filter value.
±300
HoldR
Holding Range
> or = to capture range



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