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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

Product Details
The HMC939ALP4E is a 5-bit digital attenuator with a 31 dB attenuation control range in 1 dB steps.
The HMC939ALP4E offers optimum insertion loss, attenuation accuracy, and input linearity over the specified frequency range from 100 MHz to 33 GHz.
The HMC939ALP4E requires dual supply voltages, VDD = +5 V and VSS = −5 V, and provides CMOS-/TTL-compatible parallel control interface by incorporating an on-chip driver.
The HMC939ALP4E comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package. See HMC939A-DIE for the die version of HMC939ALP4E.
**Applications**
Test instrumentation
Microwave radios and very small aperture terminals (VSATs)
Military radios, radars, electronic counter measures (ECMs)
Broadband telecommunications systems
### Features and Benefits
Attenuation range: 1 dB LSB steps to 31 dB
Insertion loss: 6 dB typical at 33 GHz
Attenuation accuracy: ±0.5 dB typical
Input linearity
0.1 dB compression (P0.1dB): 24 dBm typical
Third-order intercept (IP3): 40 dBm typical
Power handling: 27 dBm
Dual-supply operation: ±5 V
CMOS-/TTL-compatible parallel control
24-lead, 4 mm × 4 mm LFCSP package
**HMC939ATCPZ-EP supports defense and aerospace applications (AQEC standard)**
Download the HMC939ATCPZ-EP data sheet (pdf)
Military temperature range: −55°C to +125°C
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
Qualification data available on request

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HMC939ALP4E Specifications

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