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參數資料
| 型號： | MAX7457ETE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/8頁 |
| 文件大小： | 0K |
| 描述： | IC SW VIDEO DL SCART 16TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 60 |
| 功能： | 視頻開關 |
| 電路： | 2 x SCART |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 4.75 V ~ 5.25 V |
| 電流 - 電源： | 100mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WQFN 裸露焊盤 |
| 供應商設備封裝： | 16-TQFN-EP（5x5） |
| 包裝： | 管件 |
General Description
The MAX7457 4-channel video switch is ideal for anti-
aliasing and DAC-smoothing video applications or wher-
ever analog video is reconstructed from a digital data
stream such as cable/satellite/terrestrial set-top boxes
(STBs), DVD players, hard disk recorders (HDRs), and
personal video recorders (PVRs). The MAX7457 filters
and buffers CVBS and RGB video signals, making it
ideal for dual SCART (peritelevision) STBs with an
auxiliary CVBS input. The MAX7457 operates from a sin-
gle +5V supply and has a flat passband out to 5MHz
with a stopband attenuation of 43dB at 27MHz, making
it ideal for NTSC, PAL, and standard-definition digital TV
(SDTV) video systems.
The MAX7457 output buffers have a fixed gain of +6dB
and are capable of driving two standard 150
video
loads. The channel for CVBS video has high-frequency
boost circuitry that enhances picture sharpness with up
to +1.2dB of gain boost without degradation in the
stopband. The video output drivers can be disabled by
an external control input.
The MAX7457 is available in a 16-pin, 5mm x 5mm x
0.8mm TQFN package, and is specified over the
extended (-40°C to +85°C) temperature range.
Applications
STBs/HDRs
DVD Players
Game Consoles
Digital VCRs
Desktop Video Editors
Features
4-Channel Video Filter/Buffer for RGB and CVBS
Signals with Auxiliary Input
Allows Auxiliary Input for CVBS Video Loop-
Through Applications
Filter Response Ideal for NTSC, PAL, and
Interlaced SDTV Video Signals
43dB (typ) Stopband Attenuation at 27MHz
±0.75dB (max) Passband Ripple Out to 5MHz
Blanking Level Voltage on Cable <1V
Each Channel Drives Two 150 Video Loads
+5V Single-Supply Operation
Available in 5mm x 5mm x 0.8mm, 16-Pin TQFN
MAX7457
Video Switch for Dual SCART Connectors
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
MAX7457
75
75
*
75
75
OUTA
+6dB
75
75
*
*OPTIONAL CAPACITORS
*
75
75
OUTB
+6dB
75
75
*
75
75
OUTC
+6dB
75
75
*
75
75
OUTD
+6dB
SYNC
DETECTOR
LOWPASS
FILTER
LOWPASS
FILTER
LOWPASS
FILTER
LOWPASS
FILTER
2-TO-1
MUX
GND
DISABLE
SELA
VCC
0.1
F
INA2
0.1
F
INA1
0.1
F
INB
0.1
F
INC
0.1
F
IND
D/A
AUXILIARY VIDEO SOURCE
(VCR, DVD, ETC.)
ENCODER
CVBS
R
B
G
Typical Operating Circuit
19-3560; Rev 0; 1/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Pin Configuration appears at end of data sheet.
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX7457ETE
-40°C to +85°C
16 TQFN-EP*
T1655-2
*EP = Exposed pad.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX7457ETE+ | 功能描述:視頻開關 IC Video Switch for Dual SCART Connector RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX7457ETE+T | 功能描述:視頻開關 IC Video Switch for Dual SCART Connector RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX7457ETE-T | 功能描述:視頻開關 IC RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| MAX745C/D | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX745EAP | 功能描述:電池管理 Switch-Mode Li Battery Charger RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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