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MAX9994 Evaluation Kit
the EP. The MAX9994EV kit uses nine evenly spaced,
0.016in-diameter, plated through holes to connect the
EP to the lower ground planes.
Depending on the ground-plane spacing, large sur-
face-mount pads in the IF path may need to have the
board and external components is approximately
0.75pF to ground. The total 2.75pF of capacitance is
resonated out at the frequency of interest by bias
inductors L1 and L2. To determine the inductor value
use the following equation:
ground plane relieved under them to reduce parasitic
shunt capacitance.
Modifying the EV Kit
f IF =
1
2 π LC
The RF and LO inputs are broadband matched, so
there is no need to modify the circuit for use anywhere
in the 1700MHz to 2200MHz RF range (1400MHz to
2000MHz LO range).
Retuning for a different IF is as simple as scaling the
The IF output is tuned for operation at approximately
140MHz, so a 470nH inductor is used. For lower IF fre-
quency (i.e., larger component values), maintain the
component’s Q value at the cost of larger case size,
unless it is unavoidable.
values of the IF pullup inductors up or down with fre-
quency. The IF output looks like 200 ? differential in
parallel with a capacitor. The capacitance is due to the
combination of the IC, PC board, and external IF com-
ponents. The capacitance from the IC is approximately
2pF to ground (1pF differential) while that from the PC
Component Suppliers
SUPPLIER
Coilcraft
Digi-Key
Johnson
Mini-Circuits
Murata
PHONE
800-322-2645
800-344-4539
507-833-8822
718-934-4500
770-436-1300
WEBSITE
www.coilcraft.com
www.digikey.com
www.johnsoncomponents.com
www.minicircuits.com
www.murata.com
Note: Indicate that you are using the MAX9994 when contacting these component suppliers.
4
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相关代理商/技术参数
MAX9995ETX
功能描述:上下转换器 SiGe 1700-2200MHz Downconversion Mixer RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX9995ETX+
功能描述:上下转换器 SiGe 1700-2200MHz Downconversion Mixer RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX9995ETX+T
功能描述:上下转换器 SiGe 1700-2200MHz Downconversion Mixer RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX9995ETX-T
功能描述:上下转换器 SiGe 1700-2200MHz Downconversion Mixer RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX9995EVKIT
功能描述:射频开发工具 RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
MAX9996ETP
功能描述:特殊用途放大器 RoHS:否 制造商:Texas Instruments 通道数量:Single 共模抑制比（最小值）: 输入补偿电压: 工作电源电压:3 V to 5.5 V 电源电流:5 mA 最大功率耗散: 最大工作温度:+ 70 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:QFN-20 封装:Reel
MAX9996ETP+
功能描述:上下转换器 SiGe 1700-2200MHz Downconversion Mixer RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
MAX9996ETP+D
功能描述:上下转换器 SiGe 1700-2200MHz Downconversion Mixer RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128