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LT5524EFE PDF预览

LT5524EFE

更新时间: 2024-01-02 11:13:02
品牌 Logo 应用领域
凌特 - Linear 驱动器射频和微波射频放大器微波放大器
页数 文件大小 规格书
16页 180K
描述
Low Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain

LT5524EFE 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:TSSOP针数:20
Reach Compliance Code:compliantECCN代码:EAR99
风险等级:5.25特性阻抗:50 Ω
构造:COMPONENT增益:4.5 dB
JESD-609代码:e3最大工作频率:540 MHz
最高工作温度:85 °C最低工作温度:-40 °C
射频/微波设备类型:WIDE BAND LOW POWER端子面层:Matte Tin (Sn)

LT5524EFE 数据手册

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LT5524  
Low Distortion IF  
Amplifier/ADC Driver with  
Digitally Controlled Gain  
U
FEATURES  
DESCRIPTIO  
TheLT®5524isaprogrammablegainamplifier(PGA)with  
bandwidth extending from low frequency (LF) to 540MHz.  
It consists of a digitally controlled variable attenuator,  
followed by a high linearity amplifier. Four parallel digital  
inputs control the gain over a 22.5dB range with 1.5dB  
step resolution. An on-chip power supply regulator/filter  
helps isolate the amplifier signal path from external noise  
sources.  
Output IP3 at 100MHz: 40dBm  
Maximum Output Power: 16dBm  
Bandwidth: LF to 540MHz  
Propagation Delay: 0.8ns  
Maximum Gain: 27dB  
Gain Control Range: 22.5dB  
Gain Control Step: 1.5dB  
Gain Control Settling Time: 500ns  
Noise Figure: 8.6dB at 100MHz (Max Gain)  
The LT5524’s open-loop architecture offers stable opera-  
tion for any practical load conditions, including peaking-  
free AC response when driving capacitive loads, and  
excellent reverse isolation.  
Output Noise Floor: –138dBm/Hz (Max Gain)  
Reverse Isolation: –92dB  
Single Supply: 4.75V to 5.25V  
Shutdown Mode  
The LT5524 may be operated broadband, where the out-  
put differential RC time constant sets the bandwidth, or it  
may be used as a narrowband driver with the appropriate  
output filter.  
Enable/Disable Time: 1µs  
Differential I/O Interface  
20-Lead TSSOP Package  
U
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Patents Pending.  
APPLICATIO S  
High Linearity ADC Driver  
IF Sampling Receivers  
VGA IF Power Amplifier  
50Driver  
Instrumentation Applications  
U
TYPICAL APPLICATIO  
Output IP3 vs Frequency, ROUT = 200  
54  
51  
48  
5V  
CHOKE  
0.1µF  
CHOKE  
0.1µF  
45  
MAX GAIN  
IF  
AMP  
RF  
INPUT  
IF  
BPF  
100  
LT5524  
ADC  
42  
5524 TA01  
39  
LO  
0.1µF  
0.1µF  
1.5dB  
ATTENUATION  
STEP  
GAIN CONTROL  
36  
33  
30  
4 LINES  
100  
FREQUENCY (MHz)  
0
50  
150  
200  
5524 TA02  
5524f  
1

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