Datasheet > 4304-00

4304-00

更新时间： 2024-09-16 07:48:19

品牌	Logo	应用领域
PSEMI		衰减器
页数	文件大小	规格书
11页	543K
描述
75 Ohm RF Digital Attenuator 6-bit, 31.5 dB, DC - 2.0 GHz

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Product Specification

PE4304

75 Ω RF Digital Attenuator

6-bit, 31.5 dB, DC – 2.0 GHz

Product Description

Features

• 75 Ω impedance

The PE4304 is a 75-ohm high-linearity, 6-bit RF Digital Step

Attenuator (DSA) covering a 31.5 dB attenuation range in 0.5

dB steps. The PE4304 provides both a 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 PE4304 exhibits very low insertion loss

and low power consumption. This functionality is delivered in a

4x4 mm QFN footprint.

• Attenuation: 0.5 dB steps to 31.5 dB

• Low distortion for CATV and multi-carrier

applications

• 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

The PE4304 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.

• Single-supply operation

• Packaged in a 20 lead 4x4 mm QFN

Figure 1. Functional Schematic Diagram

Figure 2. Package Type

4x4 mm -20 Lead 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, Z_o= 75 Ω

Parameter

Operation Frequency

Insertion Loss²

Test Conditions

Frequency

Minimum

Typical

Maximum

2000

Units

MHz

DC ≤ 1.2 GHz

1.4

1.8

Any Bit or Bit

Combination

±(0.15 + 4% of attenuation

setting)

Attenuation Accuracy

1 dB Compression^3,4

Input IP3^1,2,4

dBm

1 MHz ≤ 1.2 GHz

DC ≤ 1.2 GHz

Two-tone inputs up to

+18 dBm

Return Loss

50% control to 0.5 dB

of final value

Switching Speed

µs

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

2. Max input rating in Table 2 & 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. 70-0066-03 │ www.psemi.com

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