收藏本站
MAX9989/MAX9990 Evaluation Kits
Quick Start
The MAX9987/MAX9988 EV kits are fully assembled and
factory tested. Follow the instructions in the Connections
and Setup section for proper device evaluation.
Test Equipment Required
Table 1 lists the equipment required to verify the opera-
tion of the MAX9989/MAX9990 EV kits. It is intended as
a guide only, and some substitutions are possible.
Connections and Setup
This section provides a step-by-step guide to testing
the basic functionality of the EV kits. As a general pre-
caution to prevent damaging the outputs by driving
high-VSWR loads, do not turn on DC power or the RF
signal generator until all connections are made:
1) Calibrate the power meter at 900MHz for the
MAX9989, or at 1800MHz for the MAX9990. Be sure
to use a power sensor rated to at least 20dBm.
Measure the loss of the 20dB attenuator (pad) that is
connected to OUTLO; account for this loss as an off-
set in the power meter.
2) Connect a 20dB pad to the LO driver output
(OUTLO). The 20dB pad maintains a reasonable
load VSWR for the output drivers and protects the
RF equipment from accidental overload.
3) Connect a 50 ? termination to OUTPLL.
4) For the MAX9989, set the RF signal generator for
900MHz CW (i.e., unmodulated) at +10dBm
Testing the Buffer
1) From the procedure above, the power meter should
be reading a power of about +17dBm. Keep in mind
that because of a 2nd harmonic component in the
output, these measured results are slightly higher
than the true on-frequency RF power.
2) Ensure that the supply current is not more than
122mA at V CC = 5.25V and P IN = +10dBm.
3) Leaving the 20dB power pad connected to OUTLO,
move the power detector to OUTPLL (removing the
50 ? termination) and verify an output level of about
+3dBm. Be sure to turn off the 20dB offset.
4) After testing, disable the RF generator, disconnect
the supply, then disconnect the RF cables.
Layout Considerations
A properly designed PC board is an essential part of
any RF/microwave circuit. Keep RF signal lines as short
as possible to reduce losses, radiation, and induc-
tance. For best performance, route the ground pin
traces directly to the exposed paddle underneath the
package. This paddle should be connected to the
ground plane of the board by using multiple vias under
the device to provide the best RF/thermal conduction
path. Solder the exposed paddle, on the bottom of the
device package, to a PC board exposed pad.
Table 1. List of Required Equipment
(accounts for 3dB loss of input pad); for the
MAX9990, set the generator for 1800MHz at
+12dBm. Connect the generator to the EV kit input
through a 3dB pad. Disable the RF output until all
connections are made.
5) Connect the power sensor to OUTLO ’ s 20dB pad.
6) Set the DC supply to +5.0V (set the current limit to
around 250mA, if possible). Disable the output volt-
age and connect the supply to the EV kit through the
ammeter.
EQUIPMENT
HP E3631A
Fluke 75 series II
HP/Agilent 8648B
HP 437B
HP 8482A
20dB pad
3dB pad
50 ? termination
QTY
1
1
1
1
1
1
1
1
DESCRIPTION
DC power supply
Digital multimeter
RF signal generator
RF power meter
High-power sensor (power head)
20dB (1W) attenuator
3dB attenuator
50 ? (1W) termination
7) Enable the supply.
8) Enable the RF signal generator ’ s output.
2
_______________________________________________________________________________________
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MAX9993ETP+D IC MIXER DOWN CONV 20-TQFN
MAX9993EVKIT EVAL KIT FOR MAX9993
MAX9994ETP+T IC MIXER DOWN CONV 20-TQFN
MAX9994EVKIT EVAL KIT FOR MAX9994
MAX9995ETX+T IC MIXER DOWN CONV 36-TQFN
MAX9995EVKIT EVAL KIT FOR MAX9995
MAX9996ETP+D IC MIXER DOWN CONV 20-TQFN
MAX9996EVKIT EVAL KIT FOR MAX9996
相关代理商/技术参数
MAX9993EGP 制造商:Maxim Integrated Products 功能描述:HIGH-LINEARITY 1700MHZ TO 2200MHZ DOWN-CONVER - Rail/Tube
MAX9993ETP 功能描述:上下转换器 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
MAX9993ETP+ 功能描述:上下转换器 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
MAX9993ETP+D 功能描述:上下转换器 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
MAX9993ETP+T 功能描述:上下转换器 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
MAX9993ETP+TD 功能描述:上下转换器 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
MAX9993ETP-T 功能描述:上下转换器 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
MAX9993ETP-TG069 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: