STV2118B Datasheet, PDF (12/25 Pages) STMicroelectronics – BUS CONTROLLED PAL/SECAM/NTSC TV PROCESSOR

STV2118B
ELECTRICAL CHARACTERISTICS (VCC = 9V, Tamb = 25^oC, unless otherwise specified) (continued)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
RGB OUTPUTS (Pins 27-28-29) (continued)
Track Tracking between Luminance and
Chrominance Signals
From Max. contrast (0dB)
to -10dB contrast
Bwidth
Bandwith of Output Signals at -3dB
- CVBS Input (no SVHS) PAL/NTSC
- CVBS Input (no SVHS) PAL/NTSC
- CVBS Input(no SVHS) SECAM
- Y Input SVHS Mode
- RGB Inputs
f_OSC = 3.58MHz, Sharp Typ.
f_OSC = 4.43MHz, Sharp Typ.
fOSC = 4.43MHz, no sharp
No trap Filter, Sharp Typ.
8
S/N Signal to Noise Ratio of Output (VPP/VRMS) No signal on R-Y, B-Y inputs
4.43MHz PAL/NTSC Signal
Contrast Max., Drive Max.,
on Y/CVBS Input
Saturation Typ., Sharp Typ.,
Bandwidth 5MHz
Res Residual Frequency at f_OSC
at 2 fOSC and Higher Harmonics
PAL/SECAM
PAL/SECAM
FILTERS
2 dB
3.0
MHz
3.6
MHz
3.0
MHz
8
MHz
MHz
50
dB
25
100 mV_PP
10
50 mVPP
VTUN1
V_TUN2
Tuning Voltage Range (Pin 8)
Cloche Tuning Voltage Range (Pin 9)
Y DELAY LINE
3.2 to 4.8
V
2.5 to 6.5
V
t_d1p
Delay Time PAL 4.43MHz
t_d1n
Delay Time NTSC 3.58MHz
td 2
Delay Time SECAM
td3p
Delay Time PAL 4.43MHz
t_{d 3}
Delay Time NTSC 3.58MHz
td 4
Delay Time SECAM
SHARPNESS CIRCUIT (PAL/NTSC only)
SVHS mode
SVHS mode
SVHS mode
CVBS mode
CVBS mode
CVBS mode
330 370 400 ns
380 410 460 ns
500 540 580 ns
390 425 460 ns
440 485 530 ns
550 590 630 ns
fSharp Center Frequency
GSharp Gain Variation from Min. to Max. Sharp
Overshoot Amplitude Variation compared to B/W
Pre-shoot Amplitude Variation compared to B/W
After-shoot Amplitude Variation compared to B/W
Coring Coring Range compared to B/W
SVHS mode
at fSharp
2T pulse, Sharp Max.
2T pulse, Sharp Max.
2T pulse, Sharp Max.
2.5
MHz
6
dB
150
%
-15
%
-40
%
10
%
Y TRAP FILTER
fT rap
Q_{T rap}
CRejPN
Trap Frequency PAL/NTSC
Trap Frequency SECAM
Trap Quality Factor
(Q=1/(fo/f-3dB - f-3dB/fo))
Color Subcarrier Rejection
CrejS Color Rejection SECAM Mode
-0.2 fOSC +0.2 MHz
-0.2 4.25 +0.2 MHz
Sharpness Min.
Sharpness Max.
1.7
-
3
-
PAL mode, Sharpness Min. 20
dB
NTSC mode, Sharpness Min. 18
dB
at 4.1MHz
18
dB
at 4.4MHz
18
dB
CHROMINANCE BANDPASS
f_C
Center Frequency
Q_BP Bandpass Quality Factor
CLOCHE FILTER
-0.25 f_osc +0.25 MHz
2.8
3.5
4.2 -
fCloche Resonant Frequency
QCloche Cloche Quality factor
ACC CAPACITOR (Pin 5)
4.286
MHz
14
16
18 -
I_C5
Charging Current
IL 5
Leakage Current
During burst gate window
250
µA
0.2
1 µA
12/25