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AD8343ARU-REEL

更新时间： 2024-02-15 17:26:36

品牌	Logo	应用领域
亚德诺 - ADI		射频和微波射频混频器微波混频器局域网
页数	文件大小	规格书
27页	393K
描述
DC-to-2.5 GHz High IP3 Active Mixer

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技术参数
数据手册

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AD8343ARU-REEL 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	TSSOP14,.25
针数：	14	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	0.6	特性阻抗：	50 Ω
构造：	COMPONENT	JESD-609代码：	e3
安装特点：	SURFACE MOUNT	端子数量：	14
最大工作频率：	2500 MHz	最小工作频率：
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	TSSOP14,.25
电源：	5 V	射频/微波设备类型：	DOUBLE BALANCED
子类别：	RF/Microwave Mixers	最大压摆率：	75 mA
表面贴装：	YES	技术：	BIPOLAR
端子面层：	Matte Tin (Sn)	最大电压驻波比：	2
Base Number Matches：	1

AD8343ARU-REEL 数据手册

AD8343

R1A and R1B set the core bias current of 18.5 mA per side. L1A

and L1B provide the RF choking required to avoid shunting the

signal. Z1, Z2A, and Z2B comprise a typical input matching net-

work that is designed to match the AD8343’s differential input

impedance to the differential output impedance of the balun.

R1A and R1B set the core bias current of 18.5 mA per side. Z1,

Z2A, and Z2B comprise a typical input matching network that

is designed to match the AD8343’s differential input impedance

to the differential output impedance of the balun. It was assumed

for this example that the input frequency is low and that the

magnitude of the device’s input impedance is therefore much

smaller than the bias resistor values, allowing the input bias

inductors to be eliminated with very little penalty in gain or

noise performance.

The IF output is taken through a 4:1 (impedance ratio) trans-

former that reflects a 200 Ω differential load to the collectors.

This output coupling arrangement is reasonably broadband,

although in some cases the user might want to consider adding a

resonator tank circuit between the collectors to provide a mea-

sure of IF selectivity. The ferrite bead (FB), in series with the

output transformer’s center tap, addresses the common-mode

stability concern.

In this example, the output signal is taken via a differential

matching network comprising Z3 and Z4A/B, then through the

1:1 balun and dc blocking capacitors to the single-ended output.

The output frequency is assumed to be high enough that conju-

gate matching to the output of the AD8343 is desirable, so the

goal of the matching network is to provide a conjugate match

between the device’s output and the differential input of the

output balun.

In this circuit the PWDN pin is shown connected to GND,

which enables the mixer. In order to enter power-down mode

and conserve power, the PWDN pin should be taken within

500 mV of VPOS.

This circuit uses shunt feed to provide collector bias for the

transistors because the output balun in this circuit has no con-

venient center-tap. The ferrite beads, in series with the output’s

bias inductors, provide some small degree of damping to ease

the common-mode stability problem. Unfortunately this type of

output balun may present a common-mode load that enters the

region of output instability, so most of the burden of avoiding

overt instability falls on the input circuit, which should present

an inductive common-mode termination over as broad a band of

frequencies as possible.

The DCPL pin should be bypassed to GND with about 0.1 µF.

Failure to do so could result in a higher noise level at the output

of the device.

Upconverting Mixer

A typical upconversion application is shown in Figure 22. Both

the input and output single-ended-to-differential conversions

are obtained through the use of 1:1 transmission line baluns.

The differential input and output matching networks are designed

between the balun and the I/O pins of the AD8343. The local

oscillator signal at a level of –12 dBm to –3 dBm is brought in

through a third 1:1 balun.

The PWDN pin is shown as tied to GND, which enables the

mixer. The DCPL pin should be bypassed to GND with about

0.1 µF in order to bypass noise from the internal bias circuit.

POS

0.1ꢁF

VPOS

COMM

OUTP

0.1ꢁF

OUT

DCPL

BIAS

PWDN

OUTM

0.1ꢁF

LOIP

LOIM

LO IN

POS

AD8343

INPP

INPM

FIN

Figure 22. Typical Upconversion Application

–21–

REV. 0

1...18 19 202122 23 24...27

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与AD8343ARU-REEL相关器件

型号	品牌	描述	获取价格	数据表
AD8343ARU-REEL7	ADI	DC-to-2.5 GHz High IP3 Active Mixer	获取价格
AD8343ARU-REEL7	ROCHESTER	0 MHz - 2500 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, PLASTIC, TSSOP-14	获取价格
AD8343ARUZ	ADI	DC-to-2.5 GHz High IP3 Active Mixer	获取价格
AD8343ARUZ	ROCHESTER	0 MHz - 2500 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, LEAD FREE, PLASTIC, TSSOP-14	获取价格
AD8343ARUZ-REEL	ADI	DC-to-2.5 GHz High IP3 Active Mixer	获取价格
AD8343ARUZ-REEL7	ROCHESTER	0 MHz - 2500 MHz RF/MICROWAVE DOUBLE BALANCED MIXER, LEAD FREE, PLASTIC, TSSOP-14	获取价格

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