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參數(shù)資料
| 型號(hào)： | MAX7441ESD |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | 6-Channel Integrated Video Reconstruction Filters |
| 中文描述： | HEX CONTINUOUS TIME FILTER, BUTTERWORTH, LOWPASS, PDSO14 |
| 封裝： | 0.150 INCH, SOIC-14 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 250K |
| 代理商： | MAX7441ESD |
M
6-Channel Integrated Video Reconstruction
Filters
_______________________________________________________________________________________
5
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NAME
IN1
IN2
IN3
V
CC
IN4
IN5
IN6
OUT6
OUT5
OUT4
GND
OUT3
OUT2
OUT1
FUNCTION
Channel 1 Filter Input (Optional Boosted Channel)
Channel 2 Filter Input
Channel 3 Filter Input
+5V Power Supply. Bypass to GND with a 0.1μF and 1μF capacitor.
Channel 4 Filter Input
Channel 5 Filter Input (Optional Boosted Channel)
Channel 6 Filter Input (Optional Boosted Channel)
Channel 6 Filter Output
Channel 5 Filter Output
Channel 4 Filter Output
Ground
Channel 3 Filter Output
Channel 2 Filter Output
Channel 1 Filter Output
Detailed Description
The MAX7440/MAX7441/MAX7442 filter the outputs of
DAC encoder chipsets that process digital video infor-
mation in applications such as set-top boxes, hard disk
recorders, DVD players, DVD recorders, and digital
VCRs. These devices also filter and clean up analog
video signals by rejecting out-of-band noise. Each
channel in the MAX7440/MAX7441/MAX7442 includes
a 4th-order lowpass filter and a gain of +1V/V output
stage, as shown in the
Typical Application Circuit
.
Filter
Filter Response
Each channel of the reconstruction filter consists of a
4th-order Sallen-Key filter configured as two 2nd-order
stages. The filter features a maximally flat passband for
NTSC, PAL, and SDTV bandwidths. The stopband
offers typically 45dB of attenuation at sampling fre-
quencies of 27MHz and above (see
Typical Operating
Characteristics
). The filter exhibits a Butterworth-type
response resulting in excellent group delay deviation
performance.
High-Frequency Boost
The high-frequency (HF) boost compensates for signal
degradation and rolloff in the signal path prior to the fil-
ter. This performance increases the image sharpness.
The MAX7441/MAX7442 offer a high-frequency boost
on channels OUT1, OUT5, and OUT6.
Output Stage
The output stages of the MAX7440/MAX7441/MAX7442
are designed to drive 1V
P-P
signals into high-imped-
ance (>5k
) loads. They require external buffers to
drive standard video cables. Most standard audio/
video switching devices include these buffers for STB
applications.
Applications Information
MAX7440/MAX7441/MAX7442 with an A/V
Switching Device
The MAX7440/MAX7441/MAX7442 are designed to
directly interface to an audio/video switching device
used in video applications (i.e., STBs) with SCART
interfaces (see
Typical Application Circuit
). The output
of the analog filters can drive the high-impedance load
of the switching device. The switching device provides
the buffering to drive standard 150
video loads.
MAX7440/MAX7441/MAX7442 with
External Buffers
External buffering is required for the MAX7440/
MAX7441/MAX7442 to drive standard 150
video
loads. Figure 1 shows the MAX4394 triple op amp, con-
figured with a gain of +2V/V to drive standard video
loads from the MAX7440/MAX7441/MAX7442.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX7442ESD | 6-Channel Integrated Video Reconstruction Filters |
| MAX7451ESA | 8-Bit Parallel-Out Serial Shift Registers 14-CFP -55 to 125 |
| MAX7450 | 8-Bit Parallel-Out Serial Shift Registers 14-CDIP -55 to 125 |
| MAX7450ESA | 8-Bit Parallel-Out Serial Shift Registers 20-LCCC -55 to 125 |
| MAX7451 | 8-Bit Parallel-Out Serial Shift Registers 14-CDIP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7441ESD+ | 制造商:Maxim Integrated Products 功能描述:ACTV FLTR HEX LOW PASS 4TH ORDR 14SOIC - Rail/Tube |
| MAX7441ESD+T | 制造商:Maxim Integrated Products 功能描述:ACTV FLTR HEX LOW PASS 4TH ORDR 14SOIC - Tape and Reel |
| MAX7443ESA | 功能描述:有源濾波器 3Ch Video Reconstruction Filtr RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7443ESA+ | 功能描述:有源濾波器 3Ch Video Reconstruction Filtr RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7443ESA+T | 功能描述:有源濾波器 3Ch Video Reconstruction Filtr RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
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