Datasheet > 94302-11

94302-11

更新时间： 2024-11-07 03:13:23

品牌	Logo	应用领域
PSEMI		射频微波衰减器
页数	文件大小	规格书
5页	170K
描述
50 ヘ RF Digital Step Attenuator For Rad-Hard Space Applications 6-bit, 31.5 dB, DC - 4.0 GHz

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PE94302

50 Ω RF Digital Step Attenuator

For Rad-Hard Space Applications

6-bit, 31.5 dB, DC – 4.0 GHz

Product Description

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.

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

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.

Figure 1. Functional Schematic Diagram

Figure 2. Package Type

28-lead CQFP

Switched Attenuator Array

RF Input

RF Output

Parallel Control

Serial Control

Control Logic Interface

Power-Up Control

Table 1. Electrical Specifications @ +25°C, V_DD= 3.0 V

Parameter

Test Conditions

Frequency

Typical

Max

Units

MHz

Operation Frequency³

Insertion Loss

DC-4000

DC - 2.2 GHz

1.5

Any Bit or Bit Combination

0.5 dB - 23.5 dB Attenuation

24 dB - 31.5 dB Attenuation

DC ≤ 1.0 GHz

+/-(0.25 + 3% of attenuation setting)

+/-(0.25 + 5% of attenuation setting)

+/-(11% of attenuation setting)

Attenuation Accuracy

1.0 GHz ≤ 2.2 GHz

1 dB Compression^1,2

Input IP3¹

1 MHz - 2.2 GHz

DC - 2.2 GHz

dBm

Two-tone inputs

Return Loss

RF Input Power (50 Ω)

dBm

50% control to 0.5 dB of final

value

Switching Speed

µs

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

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