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參數(shù)資料
| 型號(hào)： | MAX2078CTK+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 16/26頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC FRNT-END ULTRASOUND 8CH 68QFN |
| 應(yīng)用說(shuō)明： | Ultrasound Imaging Systems Application Note |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 超聲波接收器 |
| 應(yīng)用： | 醫(yī)療用超聲波成像，聲納 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-TQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 68-TQFN-EP（10x10） |
| 包裝： | 帶卷 (TR) |
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Ultrasound-Specific IMD3 Specification
Unlike typical communications applications, the two
input tones are not equal in magnitude for the ultra-
sound-specific IMD3 two-tone specification. In this
measurement, f1 represents reflections from tissue and
f2 represents reflections from blood. The latter reflec-
tions are typically 25dB lower in magnitude, and hence
the measurement is defined with one input tone 25dB
lower than the other. The IMD3 product of interest
(f1 - (f2 - f1)) presents itself as an undesired Doppler
error signal in ultrasound applications (see Figure 6).
PCB Layout
The pin configuration of the MAX2078 is optimized to
facilitate a very compact physical layout of the device
and its associated discrete components. A typical
application for this device might incorporate several
devices in close proximity to handle multiple channels
of signal processing.
The exposed pad (EP) of the MAX2078’s TQFN-EP
package provides a low thermal-resistance path to the
die. It is important that the PCB on which the MAX2078
is mounted be designed to conduct heat from the EP.
In addition, provide the EP with a low-inductance path
to electrical ground. The EP MUST be soldered to a
ground plane on the PCB, either directly or through an
array of plated via holes.
MAX2078
Octal-Channel Ultrasound Front-End
with CW Doppler Mixers
______________________________________________________________________________________
23
-25dB
ULTRASOUND
IMD3
f1 - (f2 - f1)f2 + (f2 - f1)
f1
f2
Figure 6. Ultrasound IMD3 Measurement Technique
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2078EVKIT | 功能描述:射頻前端 Ultrasound Integrated Analog Front End Octal LNA RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數(shù)據(jù)速率:54 Mbps 噪聲系數(shù): 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-32 |
| MAX2079 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:每個(gè)通道具有獨(dú)立的混頻器，以優(yōu)化CWD靈敏度 |
| MAX2079CXE+ | 功能描述:射頻接收器 8Ch Ultrasound Front End w/ADC+CW Doppler RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2079CXE+T | 功能描述:射頻接收器 8Ch Ultrasound Front End w/ADC+CW Doppler RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX207C/D | 功能描述:RS-232接口集成電路 +5V RS-232 Transceiver with 0.1 Micro Farads External Capacitors RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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