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STV2246C 数据表(PDF) 30 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) 30 Page - STMicroelectronics

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STV223XD/224XC - ELECTRICAL CHARACTERISTICS
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4.6 LUMA PART
Y DELAY LINE
PEAKING CIRCUIT
Electrical parameter measured with color identified
BLACK STRETCH CONTROL (PIN BS) See Figure 12
Y OUTPUT
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
tD1
Delay Time PAL/NTSC
SVHS mode, Register 1F d3 = 0
520
ns
tD2
Delay Time SECAM
SVHS mode, Register 1F d3 = 0
640
ns
tD3
Delay Time PAL/NTSC
CVBS mode, Register 1F d3 = 0
560
ns
tD4
Delay Time SECAM
CVBS mode, Register 1F d3 = 0
710
ns
tSHIFT
Delay Time (lumDel1 - lumDel2)
lumDel1 = reg 1F d3 = 0, standard
luma delay
lumDel2 = reg 1F d3 = 1, shifted luma
delay
140
ns
Groupdel
Group Delay up to 3.5MHz
Trap-off
±30
ns
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
fPEAK
Center Frequency
Trap-off, coring ON
2.5
3
3.5
MHz
GPEAK
Gain Variation from Min. to Max.
peaking
At fPEAK, coring ON
9
dB
Overshoot
Amplitude Variation compared to
B/W amplitude
2T pulse, Max. peaking, coring ON
55
%
Pre-shoot
Amplitude Variation compared to
B/W amplitude
2T pulse, Max. peaking, coring ON
40
%
Aft-shoot
Amplitude Variation compared to
B/W amplitude
2T pulse, Max. peaking, coring ON
40
%
Coring
Coring Range compared to B/W
Coring ON
10
%
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
BSth1
Black Stretch Threshold referred to
B/W amplitude
Y/CVBS inputs: 0.7V B/W, No set-up
50
%
BSMax.
Maximum expansion referred to
B/W amplitude
Y/CVBS inputs: 0.7V B/W, No set-up
-20
%
BSVMax. Black Stretch Control Voltage
Max. black stretch
2.6
V
BSVMin.
Black Stretch Control Voltage
No black stretch
3.3
V
I100IRE
Discharging current
Y = 100IRE
8
µA
I0IRE
Charging Current
Y = 0IRE
35
µA
Symbol
Parameter
Test Conditions
Min.
Typ
Max.
Unit
Yout-DC
Black level
3.7
VBW
Yout-amp Black to White Amplitude
0.7
0.99
V
Yout-BW Luma Path Bandwidth
Peaking nominal
SVHS mode/Trap-off
CVBS, PAL/NTSC 4.43MHz
CVBS, SECAM
CVBS, PAL/NTSC 3.58MHz
8
2.7
2.5
2.5
3.5
3.1
3.0
MHz
Yout S/N Signal to Noise Ratio (VPP/VRMS)
Bandwidth 5MHz,
Peaking Min.,coring ON
50
dB



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