STV2246H(2009) 查看數據表（PDF） - STMicroelectronics
零件编号
产品描述 (功能)
生产厂家
STV2246H Datasheet PDF : 86 Pages
| |||
STV224X, STV228X, STV223X - ELECTRICAL CHARACTERISTICS
Note 1: Additional sinked current for large increasing steps of input signal when:
- Voltage at PIFinput > Tuner AGC starting point adjustment given by the WR03(d5 to d0)
- Output Signal (IntCVBSout) saturated (VIntCBVSoutVwth) in positive modulation.
4.4.5 Synchronous Video Demodulator
Symbol
DFPC
fVCO
VILOCK
TVCO
Parameter
Test Conditions
Vision Carrier Capture Range
Maximum VCO Frequency for PIF With external LC network at 50 MHz
regeneration
(see Note 2)
PIF Input Signal for PIF PLL locking
PIFVCO Temperature Coefficient
Min.
50
Typ.
±2
40
Max.
70
±20
Unit
MHz
MHz
µVRMS
ppm/K
Note 2: This parameter is not tested during production, it is tested during the qualification phase.
4.4.6 Demodulated Video Output (INTCVBSOUT Pin)
Symbol
t(s) PIFOUT-Q
PIFOUT-I
uc BG/L
rod DG
DP
P VPIF
te VR2IF
S/N
le VWTH
so VWIL
Ob VBTH
) - VBIL
t(s BW
LUMLIN
c ROUT
du RLOAD
ro IVID
P DCOUT
te Inter Mod.
lePSRR
bso NH
Parameter
Video Amplitude at INTCVBSOUT
Pin
BG to L Ratio
Differential Gain
Differential Phase
Residual Carrier Signal
Residual 2nd Harmonic
Video Output S/N Ratio
White Noise Threshold Voltage
White Noise Insertion Level
Black Noise Threshold Voltage
Black Noise Insertion Level
Video Bandwidth
Luminance Non Linearity
Internal Output Resistance
Output Load Resistance
Video Output Source Current
DC Output Level
1.07 MHz Intermodulation
Power Supply Ripple Rejection
Suppression of Video signals har-
monics
Test Conditions
Black-to-White Video amplitude:
reg 02 data = 10h
(INTCVBSOUT =2 VPP)
reg 02 data = 90h
(INTCVBSOUT =2.3 VPP)
Video amplitude bus register
Typ.: reg 02 data = 10 hex
See Note 3
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
reg 02 data = 90h
2.3 VPP at INTCVBSOUT Pin
reg 02 data = 10hex
(INTCVBOUT = 2 VPP)
reg 02 data = 90hex
(INTCVBSOUT = 2.3 VPP)
Top Sync Level
Intercarrier Mode
Video signal Grey level (see Note 4)
BG standard
L standard
Min.
1.19
1.36
55
6
2
7
35
30
35
Typ.
1.4
1.6
5
3
3
1
1
60
6.7
3.7
1
2.6
8
50
3
10
2
52
40
Max.
1.61
1.84
8
5
5
10
10
10
5
13
Unit
V
%
%
deg
mVRMS
mVRMS
dB
V
V
V
V
MHz
%
Ω
kΩ
mA
V
dB
dB
dB
Note 3: S/N = 20 log [PIFOUT Black to White / VNOISE(mVRMS) weighted CCIR 567.
Note 4: Supply Voltage ripple rejection = 20log (VSUPPLY/VOUTPUT) measured at 100 Hz with VAC Max. = 100 mVpp ap-
plied to VCC IF = 5 V.
28/86
Share Link: 