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| 型号： | MAX2471EUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC AMP VCO BUFFER SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 放大器类型： | 缓冲器 |
| 电路数： | 1 |
| 输出类型： | 差分 |
| 电流 - 输入偏压： | 10µA |
| 电流 - 电源： | 5.5mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 标准包装 |
| 其它名称： | MAX2471EUT+TDKR |
_______________ Detailed Description
Bandwidth Control Circuitry
The MAX2470 features a logic-controlled bias circuit
which optimizes the performance for input frequencies
from 10MHz to 500MHz (HI/LO = VCC) and 10MHz to
200MHz (HI/LO = GND). Operating with HI/LO = GND
significantly reduces power consumption.
__________ Applications Information
Input Considerations
The MAX2470/MAX2471 offer high-impedance inputs,
ideal for low-distortion buffering of a VCO. For applica-
tions with discrete transistor-based oscillator designs,
simply AC-couple the oscillator directly to the inputs.
The buffer’s high input impedance results in minimal
loading on the oscillator. For still higher real input
impedance and reduced loading effects, match the
inputs with a shunt-L matching circuit followed by a
series blocking capacitor. For use with 50
VCO mod-
ules, terminate the buffer input(s) with a 50
shunt
resistor followed by a series-blocking capacitor. This
provides a very stable 50
termination and increases
reverse isolation. For those applications needing both
high gain and good input match, reactively match the
buffer inputs to 50
with simple two-element matching
circuits followed by a series blocking capacitor.
Output Considerations
The MAX2470 and MAX2471 incorporate fully differen-
tial output stages capable of driving an AC-coupled
100
differential load or two AC-coupled 50 single-
ended loads. This is ideal for applications that require
the oscillator to drive two application circuits (e.g. mixer
and PLL) simultaneously. The high output-to-output iso-
lation ensures minimal interaction between multiple
load circuits.
Layout and Power-Supply Bypassing
A properly designed PC board is essential to any RF/
microwave circuit. Be sure to use controlled impedance
lines on all high-frequency inputs and outputs. Bypass
the power supply with decoupling capacitors as close to
the VCC pins as possible. For long VCC lines (inductive), it
may be necessary to add additional decoupling capaci-
tors located further away from the device package.
Proper grounding of GND is essential. If the PC board
uses a topside RF ground, connect GND directly to it.
For a board where the ground plane is not on the com-
ponent side, the best technique is to connect GND to
the board with a plated through-hole (via) to the ground
plane close to the package.
MAX2470/MAX2471
10MHz to 500MHz VCO Buffer Amplifiers
with Differential Outputs
6
_______________________________________________________________________________________
Pin Description
Differential Noninverting Buffer Output. Broadband 50
output. AC coupling is required.
Do not DC couple to this pin.
OUT
1
PIN
1
MAX2471
MAX2470
NAME
2
RF Ground. Connect to the ground plane as close as possible to the IC to minimize
ground path inductance.
GND
2
3
—
Bias and Bandwidth Control Input. Connect to VCC to set internal bias for higher band-
width operation (10MHz to 500MHz). Connect to GND to set internal bias for lower band-
width operation (10MHz to 200MHz) and to reduce overall current consumption.
HI/LO
4
Differential Inverting Buffer Output. Broadband 50
output. AC coupling is required. Do
not DC couple to this pin.
OUT
3
4
Differential Inverting Buffer Input. High impedance input to buffer amplifier. See
Setting
The Input Impedance section.
IN
—
5
6
Supply Voltage Input. +2.7V < VCC < +5.5V.
VCC
6
Differential Noninverting Buffer Input. High impedance to buffer amplifier. See
Setting The
Input Impedance section.
IN
5
FUNCTION
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2471EVKIT | 功能描述:放大器 IC 开发工具 MAX2470/71 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX2472EUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX2472EUT+ | 制造商:Maxim Integrated Products 功能描述:RF AMP CHIP SGL INPUT/DUAL OUTPUT BFFR AMP 2.5GHZ 5.5V 6PIN - Cut Tape Product |
| MAX2472EUT+T | 功能描述:射频放大器 0.5GHz - 2.5GHz VCO Buffer Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2472EUT-T | 功能描述:射频放大器 0.5GHz - 2.5GHz VCO Buffer Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
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