參數(shù)資料
型號: STV2247
元件分類: 參考電壓二極管
英文描述: Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
中文描述: 250 的低電流運(yùn)算,低反向泄露,低噪聲穩(wěn)壓二極管
文件頁數(shù): 32/76頁
文件大小: 2157K
代理商: STV2247
STV223XD/224XC - ELECTRICAL CHARACTERISTICS
32/76
COLOR DEMODULATORS
CHROMA DELAY LINE
PLL LOOP FILTER (PAL/NTSC)
Symbol
Parameter
Test Conditions
Min.
Typ
1000
350
Max.
Unit
I
C
Maximum Control Current
Color search mode (colour not ident.)
Color identified
μA
I
L
Leakage Current
Auto Flesh Control
5
μA
Deg
Frange-W
Register 14(HEX), d6 = 1, d7 = 1
±90
HUE CONTROL
Symbol
Rhue
Parameter
Test Conditions
Min.
±35
Typ
±45
Max.
±55
Unit
Deg
Hue Control Range
AUTOMATIC FLESH CONTROL
See
Figure 13
Symbol
FleshNom. Nominal Flesh tint phase
Phase Correction when auto flesh
ON
FMax.-N
Maximum Phase Correction
Chroma Input Phase at Max. cor-
rection
Frange-N
Auto Flesh Control Range
FMax.-W
Maximum Phase Correction
Chroma Input Phase at Max. cor-
rection
Frange-W
Auto Flesh Control
Parameter
Test Conditions
Min.
Typ
118
Max.
Unit
Deg
Fcorr0
At FleshNom
0
Deg
Register 14(HEX), d6 = 1, d7 = 0
±10
Deg
Flesh-N
Register 14(HEX), d6 = 1, d7 = 0
±30
Deg
Register 14(HEX), d6 = 1, d7 = 0
Register 14(HEX), d6 = 1, d7 = 1
±60
±20
Deg
Deg
Flesh-W
Register 14(HEX), d6 = 1, d7 = 1
±45
Deg
Register 14(HEX), d6 = 1, d7 = 1
±90
Deg
Symbol
DoffsetP
DoffsetS
PhaseErr
Parameter
Test Conditions
Min.
Typ
Max.
±2
±2
5
Unit
%
%
Deg
Demodulator Offset
Demodulator Offset
Phase Error in demodulated signal
PAL/NTSC mode, 75% color bar
SECAM mode, 75% color bar
PAL/NTSC mode, 90% matrix
PAL mode, 75% color bar green-
magenta transient
SECAM mode, 75% color bar green-
magenta transient
NTSC mode, 104° matrix
TransPal
Chroma Transient Time
700
ns
transSEC
Chroma Transient Time
900
ns
Naxis
R-Y Demodulation Axis
104
Deg
Symbol
Cdelay
Parameter
Test Conditions
Min.
63.9
Typ
64
Max.
64.1
Unit
μs
Delay of delayed signals
Difference of transient times be-
tween delayed and non delayed
signals
Relative to non delayed signal
SECAM mode. t
RN
-t
RN+1
t
RN
: rise time line N (direct)
t
RN+1
: rise time line N +1 (delayed)
SECAM mode. Gn+1/Gn
Gn: direct channel gain
Gn+1: delayed channel gain
Ctrans
150
ns
Dgain
Differential Gain of delayed signals
versus direct signals
-0.5
0
0.5
dB
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