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参数资料
| 型号： | 94302-11 |
| 厂商： | PEREGRINE SEMICONDUCTOR CORP |
| 元件分类： | 衰减器 |
| 英文描述： | 50 ヘ RF Digital Step Attenuator For Rad-Hard Space Applications 6-bit, 31.5 dB, DC - 4.0 GHz |
| 中文描述： | 0 MHz - 4000 MHz RF/MICROWAVE VARIABLE ATTENUATOR, 2.75 dB INSERTION LOSS-MAX |
| 封装： | CERAMIC, QFP-28 |
| 文件页数： | 1/8页 |
| 文件大小： | 374K |
| 代理商： | 94302-11 |
Page 1 of 6
Document No. 70-0186-04
│ www.psemi.com
2005-2008 Peregrine Semiconductor Corp. All rights reserved.
28-lead CQFP
Figure 2. Package Type
The PE94302 is a high linearity, 6-bit UltraCMOS RF Digital
Step Attenuator (DSA). This 50-ohm RF DSA covers a 31.5 dB
attenuation range in 0.5 dB steps. It provides both parallel and
serial CMOS control interface. The PE94302 maintains high
attenuation accuracy over frequency and temperature and
exhibits very low insertion loss and power consumption.
The PE94302 is optimized for commercial space applications.
Single Event Latch up (SEL) is physically impossible and
Single Event Upset (SEU) is better than 10-9 errors per bit /
day. Fabricated in Peregrine’s UltraCMOS technology, a
patented variation of silicon-on-insulator (SOI) technology on a
sapphire substrate, the PE94302 offers excellent RF
performance and intrinsic radiation tolerance.
Product Specification
50
RF Digital Step Attenuator
For Rad-Hard Space Applications
6-bit, 31.5 dB, DC – 4.0 GHz
Product Description
Figure 1. Functional Schematic Diagram
PE94302
Features
Attenuation: 0.5 dB steps to 31.5 dB
Flexible parallel and serial programming
interfaces
100 Krads (Si) Total Dose
Positive CMOS control logic
High attenuation accuracy and linearity
over temperature and frequency
Low power - 100 A at 3.0V
50 impedance
Control Logic Interface
Parallel Control
Serial Control
RF Input
RF Output
Switched Attenuator Array
6
3
Table 1. Electrical Specifications @ -40°C
≤ Temp ≤ +85°C, 2.7V ≤ V
DD ≤ 3.30V
Notes: 1. Device Linearity will begin to degrade below 1 MHz
2. Maximum Operating Power = +12 dBm
3. Specs are guaranteed to 2.2 GHz, Characterized to 4.0 GHz
Parameter
Test Conditions
Frequency
Min
Typical
Max
Units
Operation Frequency
DC - 4000
MHz
Insertion Loss
DC - 2.2 GHz
1.5
2.75
dB
Attenuation Accuracy
0.5 dB - 8.0 dB Atten.
DC - 1.0 GHz
- (0.55 + 3.7% of atten. setting)
+ (0.55 + 3.7% of atten. setting)
dB
8.5 dB - 31.5 dB Atten.
+ 0.9
0.5 dB - 4.0 dB Atten.
1.0 - 2.2 GHz
+ (0.70 + 3.0% of atten. setting)
4.5 dB - 31.5 dB Atten.
+ 0.9
0.5 dB - 23.0 dB Atten.
- (0.7+ 3.0% of atten. setting)
23.5 dB - 31.5 dB Atten.
- (0.6 + 9.0% of atten. setting)
1 dB Compression
1 MHz - 2.2 GHz
33
dBm
Input IP3
Two-tone inputs
52
dBm
Return Loss
DC - 2.2 GHz
15
dB
RF Input Power (50 )
12
dBm
Switching Speed
Min to Max Atten. State
1
s
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