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| 型号： | MAX2077CTK+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/20页 |
| 文件大小： | 0K |
| 描述： | IC FRONT-END ULTRASOUND 68TQFN |
| 应用说明： | Ultrasound Imaging Systems Application Note |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 超声波接收器 |
| 应用： | 医疗用超声波成像，声纳 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 68-TQFN 裸露焊盘 |
| 供应商设备封装： | 68-TQFN-EP（10x10） |
| 包装： | 带卷 (TR) |
MAX2077
Octal-Channel Ultrasound Front-End
______________________________________________________________________________________
15
Analog Output Coupling
Each of the VGA output pins can drive 25pF to GND
and 15pF || 1k
Ω differentially. The differential outputs
have a common-mode bias of approximately 1.73V.
AC-couple these differential outputs if the next stage
has a different common-mode input range.
Power-Supply Sequencing
Use the following power-on sequence:
1) 4.75V supply
2) 3.3V supply
3) 2.5V reference voltage
4) Control signals
Before a signal is turned on, it should be either at 0V or
in an open state.
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 2).
-25dB
ULTRASOUND
IMD3
f1 - (f2 - f1)f2 + (f2 - f1)
f1
f2
Figure 2. Ultrasound IMD3 Measurement Technique
LSB
DIN
CLK
CS
tEWS
tCS
tCH
tCW
tEW
tES
D6
D5
D1
D0
MSB
NOTES:
DATA ENTERED ONE CLOCK RISING EDGE. REGISTER STATE CHARGE ON CS RISING EDGE.
DATA IS ENTERED LSB FIRST IF MORE THAN 7 BITS ARE ENTERED, THE EXTRA BITS MUST PRECEDE THE LSB.
Figure 1. Shift Register Timing Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2077CTN+ | 功能描述:射频前端 8Ch Ultrasound Front-End RoHS:否 制造商:Skyworks Solutions, Inc. 类型: 工作频率:2.4 GHz, 5 GHz 最大数据速率:54 Mbps 噪声系数: 工作电源电压:3.3 V 电源电流:180 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-32 |
| MAX2077CTN+T | 功能描述:射频前端 8Ch Ultrasound Front-End RoHS:否 制造商:Skyworks Solutions, Inc. 类型: 工作频率:2.4 GHz, 5 GHz 最大数据速率:54 Mbps 噪声系数: 工作电源电压:3.3 V 电源电流:180 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-32 |
| MAX2077EVKIT# | 功能描述:射频前端 Octal-Channel Ultrasound Front-End RoHS:否 制造商:Skyworks Solutions, Inc. 类型: 工作频率:2.4 GHz, 5 GHz 最大数据速率:54 Mbps 噪声系数: 工作电源电压:3.3 V 电源电流:180 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-32 |
| MAX2078 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Octal-Channel Ultrasound Front-End with CW Doppler Mixers |
| MAX2078CTK+ | 功能描述:射频前端 8Ch Ultrasound Front-End RoHS:否 制造商:Skyworks Solutions, Inc. 类型: 工作频率:2.4 GHz, 5 GHz 最大数据速率:54 Mbps 噪声系数: 工作电源电压:3.3 V 电源电流:180 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-32 |
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