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參數(shù)資料
| 型號： | STV8227 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| 中文描述： | 數(shù)字音頻解碼器/處理器為A2和麗音電視/錄像機 |
| 文件頁數(shù)： | 43/149頁 |
| 文件大?。?/td> | 2775K |
| 代理商： | STV8227 |
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STV82x7
Power Supply Management
8
Power Supply Management
A mixed supply voltage environment requires the following voltages:
●
3.3V capable inputs/outputs for digital pins;
●
1.8V digital core;
●
8V capable inputs/outputs for analog audio interfaces (capability to output 2 V
RMS
for SCART
requirements);
●
3.3V for stereo ADC and DAC (analog part);
●
1.8V for stereo ADC and DAC (digital part);
●
1.8V for IF ADC and AGC.
These voltages will be delivered by the application with an accuracy of
±5%
. For more information,
refer to
Section 13.3: Power Supply Data
.
Other specific DC voltages or features are provided:
●
Voltage Reference and Biasing Generation (AGC, ADCs, DACs),
●
Bandgap reference.
8.1
Standby Mode (Loop-through mode)
The STV82x7 provides a Loop-through mode configuration that bypasses IC functions via a SCART
I/O pin (Full Analog Path only). In this case, only a minimum power of 200 mW is required.
In Standby mode, the digital and analog power supplies are switched off, except for pins VCC_H,
VCC33_LS, VCC33_SC, and VCC_NISO which are used to maintain the SCART path with the last
configuration programmed by analog matrixing (register
SCART1_2_OUTPUT_CTRL
and
SCART3_OUTPUT_CTRL
). When switching back to normal Full Power mode, all I2C registers are
reset except for those used in Standby mode to maintain the original configuration.
In Standby mode, the I2C bus does not operate. However, the bus can still be used by other ICs
since the I2C I/O pins (SDA and SCL) of the STV82x7 are forced into a high-impedance
configuration.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV8227T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8230 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TV/Video Signal Processor |
| STV8236 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multistandard TV Audio Processor and Digital Sound Demodulator |
| STV8237 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8237T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
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