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參數資料
| 型號： | 4302-51 |
| 廠商： | PEREGRINE SEMICONDUCTOR CORP |
| 元件分類： | 衰減器 |
| 英文描述： | 50 Ohm RF Digital Attenuator 6-bit, 31.5 dB, DC-4.0 GHZ |
| 中文描述： | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 1.75 dB INSERTION LOSS-MAX |
| 封裝： | 4 X 4 MM, GREEN, QFN-20 |
| 文件頁數： | 1/11頁 |
| 文件大小： | 469K |
| 代理商： | 4302-51 |
Page 1 of 11
Document No. 70-0056-04
│ www.psemi.com
2003-2008 Peregrine Semiconductor Corp. All rights reserved.
The PE4302 is a high linearity, 6-bit RF Digital Step Attenuator
(DSA) covering a 31.5 dB attenuation range in 0.5 dB steps.
This 50-ohm RF DSA provides both parallel 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
PE4302 exhibits very low insertion loss and low power
consumption. This functionality is delivered in a 4x4 mm QFN
footprint.
The PE4302 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.
Product Specification
50
RF Digital Attenuator
6-bit, 31.5 dB, DC – 4.0 GHz
Product Description
Figure 1. Functional Schematic Diagram
PE4302
Features
Attenuation: 0.5 dB steps to 31.5 dB
Flexible parallel and serial programming
interfaces
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
50 impedance
Packaged in a 20 lead 4x4mm QFN
Control Logic Interface
Parallel Control
Power-Up Control
Serial Control
RF Input
RF Output
Switched Attenuator Array
6
3
2
Table 1. Electrical Specifications @ +25°C, VDD = 3.0 V
Parameter
Test Conditions
Frequency
Minimum
Typical
Maximum
Units
Operation Frequency
DC
4000
MHz
Insertion Loss2
DC - 2.2 GHz
-
1.5
1.75
dB
Attenuation Accuracy
Any Bit or Bit
Combination
DC
≤ 1.0 GHz
1.0 < 2.2 GHz
-
±(0.10 + 3% of atten setting)
±(0.15 + 5% of atten setting)
dB
1 dB Compression3
1 MHz - 2.2 GHz
30
34
-
dBm
Input IP31,2
Two-tone inputs
+18 dBm
1 MHz - 2.2 GHz
-
52
-
dBm
Return Loss
DC - 2.2 GHz
15
20
-
dB
Switching Speed
50% control to 0.5 dB
of final value
-
1
s
Notes: 1. Device Linearity will begin to degrade below 1 Mhz
2. See Max input rating in Table 3 & Figures on Pages 2 to 4 for data across frequency.
3. Note Absolute Maximum in Table 3.
Figure 2. Package Type
4x4 mm 20-Lead QFN
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