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| 型号： | ADL5357ACPZ-R7 |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 混频器 |
| 英文描述： | 500 MHz to 1700 MHz Balanced Mixer with LO Buffer, IF Amp, and RF Balun; Package: 20 ld LFCSP 4x4mm (3.1EP; No of Pins: 20; Temperature Range: Ind |
| 中文描述： | 500 MHz - 1700 MHz RF/MICROWAVE DOUBLE BALANCED MIXER |
| 封装： | 5 X 5 MM, ROHS COMPLIANT, CP-20-5, MO-220-VHHC, LFCSP-20 |
| 文件页数： | 10/24页 |
| 文件大小： | 587K |
| 代理商： | ADL5357ACPZ-R7 |
ADL5357
Rev. 0 | Page 18 of 24
APPLICATIONS INFORMATION
BASIC CONNECTIONS
The ADL5357 mixer is designed to downconvert radio
frequencies (RF) primarily between 500 MHz and 1700 MHz
to lower intermediate frequencies (IF) between 30 MHz and
450 MHz. Figure 52 depicts the basic connections of the mixer.
It is recommended to ac couple RF and LO input ports to prevent
non-zero dc voltages from damaging the RF balun or LO input
circuit. The RFIN capacitor value of 8 pF is recommended to
provide the optimized RF input return loss for the desired
frequency band.
IF PORT
The mixer differential IF interface requires pull-up choke inductors
to bias the open-collector outputs and to set the output match.
The shunting impedance of the choke inductors used to couple
dc current into the IF amplifier should be selected to provide
the desired output return loss.
The real part of the output impedance is approximately
200 Ω, as seen in Figure 30, which matches many commonly
used SAW filters without the need for a transformer. This results in
a voltage conversion gain that is approximately 6 dB higher than
the power conversion gain, as shown in Table 3. When a 50 Ω
output impedance is needed, use a 4:1 impedance transformer,
as shown in Figure 52.
BIAS RESISTOR SELECTION
Two external resistors, RBIAS IF and RBIAS LO, are used to adjust the
bias current of the integrated amplifiers at the IF and LO terminals.
It is necessary to have a sufficient amount of current to bias both
the internal IF and LO amplifiers to optimize dc current vs.
provide the reference for the bias resistor selection when lower
power consumption is considered at the expense of conversion
gain and IP3 performance.
MIXER VGS CONTROL DAC
The ADL5357 features two logic control pins, VGS0 (Pin 12) and
VGS1 (Pin 13), that allow programmability for internal gate-to-
source voltages for optimizing mixer performance over desired
frequency bands. The evaluation board defaults both VGS0 and
VGS1 to ground. Power conversion gain, IIP3, NF, and IP1dB
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADL5357ACPZ-WP | 制造商:AD 制造商全称:Analog Devices 功能描述:500 MHz to 1700 MHz Balanced Mixer, LO Buffer, IF Amplifier, and RF Balun |
| ADL5357-EVALZ | 功能描述:EVAL BOARD FOR ADL5357 制造商:analog devices inc. 系列:- 零件状态:有效 类型:混频器 频率:500MHz ~ 1.7GHz 配套使用产品/相关产品:ADL5357 所含物品:板 标准包装:1 |
| ADL5357-EVALZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:500 MHz to 1700 MHz Balanced Mixer, LO Buffer, IF Amplifier, and RF Balun |
| ADL5358 | 制造商:AD 制造商全称:Analog Devices 功能描述:500 MHz to 1700 MHz, Dual-Balanced Mixer, LO Buffer, IF Amplifier, and RF Balun |
| ADL5358ACPZ-R2 | 制造商:AD 制造商全称:Analog Devices 功能描述:500 MHz to 1700 MHz, Dual-Balanced Mixer, LO Buffer, IF Amplifier, and RF Balun |
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