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HMC624A

Analog Devices
Part Number HMC624A
Manufacturer Analog Devices
Description GaAs Digital Attenuator
Published Jul 12, 2021
Detailed Description Data Sheet 0.1 GHz to 6.0 GHz,0.5 dB LSB, 6-Bit, GaAs Digital Attenuator HMC624A FEATURES Attenuation range: 0.5 dB (L...
Datasheet PDF File HMC624A PDF File

HMC624A
HMC624A

Overview
Data Sheet 0.
1 GHz to 6.
0 GHz,0.
5 dB LSB, 6-Bit, GaAs Digital Attenuator HMC624A FEATURES Attenuation range: 0.
5 dB (LSB) steps to 31.
5 dB Low insertion loss: 1.
6 dB at 3 GHz Excellent attenuation accuracy High linearity Input 0.
1dB compression (P0.
1dB): 33 dBm typical Input third-order intercept (IP3): 55 dBm typical High RF input power handling: 28 dBm Low phase shift: 25° at 3 GHz Single-supply operation: 3 V to 5 V CMOS-/TTL-compatible control 24-lead, 4 mm × 4 mm LFCSP package Pin compatible to the HMC1122 APPLICATIONS Cellular infrastructure Microwave radios and very small aperture terminals (VSATs) Test equipment and sensors Intermediate frequency (IF) and radio frequency (RF) designs FUNCTIONAL BLOCK DIAGRAM D5 D4 D3 D2 D1 D0 24 23 22 21 20 19 P/S 1 18 VDD CLK 2 SERIN 3 SERIAL/ PARALLEL INTERFACE 17 PUP1 16 PUP2 LE 4 GND 5 ATTIN 6 7 ACG1 ACG2 6-BIT/ DIGITAL ATTENUATOR 15 SEROUT 14 GND 13 ATTOUT ACG6 ACG5 ACG4 ACG3 8 9 10 11 12 PACKAGE BASE GND Figure 1.
15353-001 GENERAL DESCRIPTION The HMC624A is a 6-bit digital attenuator with a 31.
5 dB attenuation control range in 0.
5 dB steps.
The HMC624A offers excellent attenuation accuracy and high input linearity over the specified frequency range from 100 MHz to 6.
0 GHz.
However, this digital attenuator features external ac grounding capacitors to extend the operation below 100 MHz.
The HMC624A is integrated with two dies: a CMOS driver and a gallium arsenide (GaAs) RF attenuator.
The CMOS driver provides both serial and parallel control of the RF attenuator.
The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.
The HMC624A operates with a single positive supply voltage from 3 V to 5 V, and provides a CMOS-/TTL-compatible control interface.
The HMC624A comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package, and is pin compatible to the HMC1122 except for the ACGx pins.
Rev.
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