Datasheet > EK43404-01

EK43404-01

更新时间： 2024-11-30 06:56:19

品牌	Logo	应用领域
PSEMI		射频衰减器
页数	文件大小	规格书
11页	526K
描述
75 -RF Digital Attenuator 4-bit, 15 dB, DC - 2.0 GHz

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EK43404-01 数据手册

Product Specification

PE43404

75 Ω RF Digital Attenuator

4-bit, 15 dB, DC – 2.0 GHz

Product Description

Features

• Attenuation: 1.0 dB steps to 15 dB

• Flexible parallel and serial programming

interfaces

• Parallel latched or direct mode

• High attenuation accuracy and linearity

The PE43404 is a high linearity, 4-bit RF Digital Step

Attenuator (DSA) covering a 15 dB attenuation range in 1.0 dB

steps. 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 PE43404 exhibits very low insertion

loss and low power consumption. This functionality is delivered

in a 4x4 mm QFN footprint.

over temperature and frequency

• Unique power-up state selection

• Very low power consumption

• Single-supply operation

• Positive CMOS control logic

• 75 Ω impedance

• Packaged in a 20 Lead 4x4 mm QFN

The PE43404 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.

Figure 1. Functional Schematic Diagram

Figure 2. Package Type

20 Lead 4x4 mm QFN

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

Operation Frequency

Insertion Loss¹

Test Conditions

Frequency

Minimum

Typical

Maximum

2000

Units

MHz

DC ≤ 1.2 GHz

1.4

1.95

Any Bit or Bit

Combination

Attenuation Accuracy

1 dB Compression^3,4

Input IP3^1,2,4

±(0.25+ 7% of atten setting)

dBm

1 MHz ≤ 1.2 GHz

DC ≤ 1.2 GHz

Two-tone inputs up to

+18 dBm

Return Loss

Zo = 75 ohms

50% control

Switching Speed

µs

Notes: 1. Device Linearity will begin to degrade below 1MHz

2. Max input rating in Table 3 & Figures on Pages 4 to 6 for data across frequency.

3. Note Absolute Maximum in Table 3.

4. Measured in a 50 Ω system.

Document No. 70-0258-02 │ www.psemi.com

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