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4307-00

更新时间: 2024-11-01 03:07:11
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PSEMI 射频衰减器
页数 文件大小 规格书
11页 547K
描述
75 ヘ RF Digital Attenuator 5-bit, 15.5 dB, DC - 2.0 GHz

4307-00 数据手册

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Product Specification  
PE4307  
75 RF Digital Attenuator  
5-bit, 15.5 dB, DC – 2.0 GHz  
Product Description  
Features  
The PE4307 is a high linearity, 5-bit RF Digital Step Attenuator  
(DSA) covering a 15.5 dB attenuation range in 0.5 dB steps.  
The device is pin compatible with the PE430x series. This 75-  
ohm RF DSA provides both parallel (latched or direct mode)  
and serial CMOS control interface, operates on a single 3-volt  
supply and maintains high attenuation accuracy over frequency  
and temperature. It also has a unique control interface that  
allows the user to select an initial attenuation state at power-  
up. The PE4307 exhibits very low insertion loss and low power  
consumption. This functionality is delivered in a 4x4 mm QFN  
footprint.  
Attenuation: 0.5 dB steps to 15.5 dB  
Flexible parallel and serial programming  
interfaces  
Latched or direct mode  
Unique power-up state selection  
Positive CMOS control logic  
High attenuation accuracy and linearity  
over temperature and frequency  
Very low power consumption  
Single-supply operation  
The PE4307 is manufactured on Peregrine’s UltraCMOS™  
process, a patented variation of silicon-on-insulator (SOI)  
technology on a sapphire substrate, offering the performance  
of GaAs with the economy and integration of conventional  
CMOS.  
75 impedance  
Pin compatible with PE430x series  
Packaged in a 20 Lead 4x4 mm QFN  
Figure 2. Package Type  
Figure 1. Functional Schematic Diagram  
20 Lead 4x4 mm QFN  
Switched Attenuator Array  
RF Input  
RF Output  
5
3
1
Parallel Control  
Serial Control  
Control Logic Interface  
Power-Up Control  
Table 1. Electrical Specifications @ +25°C, VDD = 3.0 V  
Parameter  
Operation Frequency  
Insertion Loss1  
Test Conditions  
Frequency  
Minimum  
Typical  
Maximum  
2000  
Units  
MHz  
dB  
DC  
-
DC 1.2 GHz  
DC 1.2 GHz  
1.4  
-
1.95  
±(0.15 + 4% of atten setting)  
Not to exceed +0.25dB  
dB  
dB  
Any Bit or Bit  
Combination  
Attenuation Accuracy  
1 dB Compression3,4  
Input IP31,2,4  
-
30  
-
1 MHz 1.2 GHz  
1 MHz 1.2 GHz  
DC 1.2 GHz  
34  
52  
13  
-
-
-
dBm  
dBm  
dB  
Two-tone inputs up to  
+18 dBm  
Return Loss  
Zo = 75 ohms  
10  
-
-
50% control to 0.5 dB  
of final value  
Switching Speed  
1
µs  
Notes: 1. Device Linearity will begin to degrade below 1MHz  
2. Max input rating in Table 2 & Figures on Pages 2 to 4 for data across frequency.  
3. Note Absolute Maximum in Table 3.  
4. Measured in a 50 system.  
Document No. 70-0161-03 www.psemi.com  
©2005 Peregrine Semiconductor Corp. All rights reserved.  
Page 1 of 11  

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