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參數(shù)資料
| 型號： | STV2248 |
| 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 的低電流運算，低反向泄露，低噪聲穩(wěn)壓二極管 |
| 文件頁數(shù)： | 43/76頁 |
| 文件大?。?/td> | 2157K |
| 代理商： | STV2248 |
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STV223XD/224XC -
I2C BUS SELECTION
43/76
6.3 STV2238D: INPUT SIGNALS (WRITE MODE)
Not used data bits must be set to “0”.
PIFVCO FREE RUNNING FINE
PIF FREE RUNNING COARSE
PIF FEATURES
Reg.
Addr.
(Hex)
00
Description
Bits
Data
Comments
d7 d6 d5 d4 d3 d2 d1 d0
PIFVCO
Free Running
Fine Adjustment
Not to be used
7
0
1
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
0
0
1
X
X
X
X
0
PIF Typical + 0.7 MHz.
PIF Free Running mid range.
PIF Typical - 0.7 MHz.
1
Reg.
Addr.
(Hex)
01
Description
Bits
Data
Comments
d7 d6 d5 d4 d3 d2 d1 d0
PIFVCO Free
Running Coarse
Adjustment for
38.9 MHz Carrier
PIFVCO Free
Running Coarse
Adjustment for
33.9 MHz Carrier
(L’)
4
X
X
X
X
X
X
0
0
0
X
X
X
0
0
1
0
1
1
0
1
1
0
1
1
PIFVCO = F0 + 2.0 MHz.
PIFVCO = F0 (mid range).
PIFVCO = F0 - 1.8 MHz.
4
X
X
X
X
X
X
1
1
1
1
1
1
0
0
1
0
1
1
0
1
1
0
1
1
PIFVCO = F0 + 1.3 MHz.
PIFVCO = F0 (mid range).
PIFVCO = F0 - 1.2 MHz.
PIF Modulation
1
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Negative Modulation.
1 = Positive Modulation.
0 = L Standard.
1 = L’ Standard.
0 = AFC Active.
1 = AFC Defeat (read register 02, d2 d1 d0 = 000).
0 = Over-modulation detection off.
1 = Over-modulation regulation active.
L/L’ Standard
Selection
1
Digital AFC Defeat
1
PIF
Over-modulation
1
Reg.
Addr.
(Hex)
02
Description
Bits
Data
Comments
d7 d6 d5 d4 d3 d2 d1 d0
CVBS Output Ampli-
tude
5
X
X
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
0
X
X
X
X
0
1
1
X
X
X
X
X
0
0
1
X
X
X
X
X
0
0
1
X
X
X
X
X
0
0
1
X
X
X
X
X
0
0
1
X
X
X
X
X
V
Typ.
- 1.6 dB.
V
Typ.
= 1.6 V (black / white).
V
Typ.
+ 1.5 dB.
Not to be used
Overmodulation
Reset
1
1
0 = Normal Operating Mode
1 = Overmodulation Reset
0 = 2
VPP
, no external sound trap.
1 = 2.3
VPP
, external sound trap.
CVBS Output
1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV2248C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2248H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IC BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2249 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I%B2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2249C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
| STV2249H | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:IC BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR |
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