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參數(shù)資料
| 型號： | MAX7482 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Bidirectional Video Filters/Buffers for Composite and S-Video Portable Media Devices |
| 中文描述： | 雙向視頻濾波器/緩沖器，用于復合視頻及S端子便攜式多媒體產(chǎn)品 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 872K |
| 代理商： | MAX7482 |
M
a raw negative voltage that is fed into a linear regulator.
The linear regulator filters out the charge-pump noise for
a clean negative supply rail. The use of an integrated
charge pump facilitates a direct connection without the
use of large series AC-coupling capacitors in a single
supply system.
BIAS
Connect a 100k
Ω
resistor with 1% accuracy or better
from BIAS to GND to create the bias current used
throughout the MAX7481/MAX7482.
Power-Down Modes
The MAX7481/MAX7482 feature a shutdown mode that
significantly reduces power consumption. Drive SHDN
high to put the MAX7481/MAX7482 in shutdown mode.
In shutdown mode, the video filters, output buffers,
charge pump, and linear regulator are turned off, and
all video output drivers are pulled to GND. The
MAX7481/MAX7482 consume less than 10μA in shut-
down mode.
The MAX7481/MAX7482 also feature advanced power-
down modes that turn off the output buffers not in use
during normal operation. In playback mode, the record
output buffers are turned off and in record mode, the
playback output buffers are turned off. CVBSON and
YCON further reduce power dissipation by turning
off output buffers not in use. The MAX7481/MAX7482
are designed to extend battery life in portable
video applications.
Bidirectional Video Filters/Buffers for Composite
and S-Video Portable Media Devices
10
______________________________________________________________________________________
CVBSON
YCON
P/R = HIGH
LPF
LPF
VIDEO
ADC
VIDEO
DAC
VIDEO
ADC
CONTROL
LOGIC
VIDEO
DAC
MAX7481
MAX7482
S4
S5
S1
S2
S3
75
Ω
0.1
μ
F
75
Ω
75
Ω
0.1
μ
F
0.1
μ
F
S8
S7
S6
YCON = HIGH
OUT4
IN3
IN5
IN4
IN1
IN2
OUT5
Figure 5. Signal Flow Diagram for Record Mode
75
Ω
0.1
μ
F
OUT1, OUT2, OUT3
SINGLE
CONNECTION
75
Ω
CABLE
OUTPUT
BUFFER
IN3, IN4, IN5
Figure 6. Single Connector for Input and Output
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7482ETI+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX748AC/D | 功能描述:直流/直流開關轉(zhuǎn)換器 1.7mA Quiescent Current-Mode PWM DC-DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX748AC/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX748ACPA | 功能描述:直流/直流開關轉(zhuǎn)換器 3.3V Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX748ACPA+ | 功能描述:直流/直流開關轉(zhuǎn)換器 3.3V Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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