94302
器件描述：50 ヘ RF Digital Step Attenuator For Rad-Hard Space Applications 6-bit, 31.5 dB, DC - 4.0 GHz
器件厂商：PEREGRINE [Peregrine Semiconductor Corp.]
文件大小：170.61KB，共5页
Sponsor by e络盟器件资料摘要：
Page 1 of 5
Document No. 70/0186-01 │ www.psemi.com ©2005 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) specifically optimized for rad-hard space
applications. 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 which operate on a single 3-volt
supply. It also has a unique control interface that allows the
user to select an initial attenuation state at power-up. The PE
94302 maintains high attenuation accuracy over frequency and
temperature and exhibits very low insertion loss and power
consumption.
The PE94302 is manufactured in Peregrine’s patented Ultra
Thin Silicon (UTSi®) CMOS process, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Advance Information
50 Ω 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
• 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 Ω impedance
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, V
DD
= 3.0 V
Parameter Test Conditions Frequency Typical Units
Operation Frequency
3
DC-4000
MHz
Insertion Loss DC - 2.2 GHz 1.5
dB
Attenuation Accuracy
Any Bit or Bit Combination
0.5 dB - 23.5 dB Attenuation
24 dB - 31.5 dB Attenuation
DC ≤ 1.0 GHz
1.0 GHz ≤ 2.2 GHz
1.0 GHz ≤ 2.2 GHz
+/-(0.25 + 3% of attenuation setting)
+/-(0.25 + 5% of attenuation setting)
+/-(11% of attenuation setting)
dB
1 dB Compression
1,2
1 MHz - 2.2 GHz 34
dBm
Input IP3
1
Two-tone inputs 1 MHz - 2.2 GHz 52 dBm
Return Loss DC - 2.2 GHz 20 dB
Switching Speed
50% control to 0.5 dB of final
value
1 µs
RF Input Power (50 Ω) dBm
Max
12
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
Document No. 70/0186-01 │ www.psemi.com ©2005 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) specifically optimized for rad-hard space
applications. 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 which operate on a single 3-volt
supply. It also has a unique control interface that allows the
user to select an initial attenuation state at power-up. The PE
94302 maintains high attenuation accuracy over frequency and
temperature and exhibits very low insertion loss and power
consumption.
The PE94302 is manufactured in Peregrine’s patented Ultra
Thin Silicon (UTSi®) CMOS process, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Advance Information
50 Ω 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
• 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 Ω impedance
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, V
DD
= 3.0 V
Parameter Test Conditions Frequency Typical Units
Operation Frequency
3
DC-4000
MHz
Insertion Loss DC - 2.2 GHz 1.5
dB
Attenuation Accuracy
Any Bit or Bit Combination
0.5 dB - 23.5 dB Attenuation
24 dB - 31.5 dB Attenuation
DC ≤ 1.0 GHz
1.0 GHz ≤ 2.2 GHz
1.0 GHz ≤ 2.2 GHz
+/-(0.25 + 3% of attenuation setting)
+/-(0.25 + 5% of attenuation setting)
+/-(11% of attenuation setting)
dB
1 dB Compression
1,2
1 MHz - 2.2 GHz 34
dBm
Input IP3
1
Two-tone inputs 1 MHz - 2.2 GHz 52 dBm
Return Loss DC - 2.2 GHz 20 dB
Switching Speed
50% control to 0.5 dB of final
value
1 µs
RF Input Power (50 Ω) dBm
Max
12
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