STV2246H STMicroelectronics, STV2246H Datasheet - Page 34

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

4.6.3 Black Stretch Control (Pin BS)
See
4.6.4 Y Output
4.7 FILTERS
4.7.1 Y Trap Filter
4.7.2 Chrominance Bandpass
Yout-amp Black to White Amplitude
BSVMax. Black Stretch Control Voltage
Pre-shoot
Yout-BW Luma Path Bandwidth
Yout S/N Signal to Noise Ratio (V
f
BSVMin. Black Stretch Control Voltage
Yout-DC Black level
Aft-shoot
Symbol
I100IRE
Symbol
BSMax.
f
TRAP-ACC
Symbol
Symbol
Symbol
TRAP-PN
f
CrejPN
BSth1
Coring
I0IRE
Q
TRAP-S
CrejS
Q
TRAP
f
BP
Figure 12
BP
Black Stretch Threshold referred to
B/W amplitude
Maximum expansion referred to
B/W amplitude
Discharging current
Charging Current
Amplitude Variation compared to
B/W amplitude
Amplitude Variation compared to
B/W amplitude
Coring Range compared to B/W
Notch Frequency
Notch Frequencies
Notch Frequency Accuracy
Trap Quality Factor
Color Subcarrier Rejection
Color Rejection in SECAM Mode
Center Frequency
Bandpass Quality Factor
Parameter
Parameter
Parameter
Parameter
Parameter
STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS
PP
/V
RMS
)
Y/CVBS inputs: 0.7V B/W, No set-up
Y/CVBS inputs: 0.7V B/W, No set-up
Max. black stretch
Y = 100IRE
Y = 0IRE
Peaking nominal
SVHS mode/Trap-off
CVBS, PAL/NTSC 4.43MHz
CVBS, SECAM
CVBS, PAL/NTSC 3.58MHz
Bandwidth 5MHz,
Peaking Min.,coring ON
No black stretch
2T pulse, Max. peaking, coring ON
2T pulse, Max. peaking, coring ON
Coring ON
SECAM fnb
SECAM fnr
Q = 1/ (f0/f-3dB - f-3dB/f0), Peaking
Min.
From 4.1 to 4.6 MHz
At 3.9 MHz
Register 12h, d3-d0 = 0000
PAL/NTSC
PAL/NTSC
Test Conditions
Test Conditions
Test Conditions
Test Conditions
Test Conditions
Min.
Min.
Min.
Min.
2.7
2.5
2.5
-5%
Min.
50
2.8
20
10
8
Typ.
Typ.
Typ.
Typ.
f
f
-15
2.6
3.3
3.7
0.7
3.5
3.1
3.0
Typ.
50
35
OSC
OSC
4.2
4.5
1.5
3.5
20
8
40
40
10
Max.
Max.
0.99
Max.
Max.
+5%
Max.
3.5
4.2
VBW
MHz
Unit
Unit
MHz
MHz
MHz
Unit
Unit
Unit
µA
µA
dB
dB
dB
34/86
%
%
%
V
V
V
%
%
%
-
-