HMC624A-EP Datasheet | Analog Devices

FEATURES Attenuation range: 0.5 d B (LSB) steps to 31.5 d B Low insertion loss: 1.6 d B at 3 GHz Excellent attenuation accuracy High linearity Input 0.1d B pression (P0.1d B): 33 d Bm typical Input third-order intercept (IP3): 55 d Bm typical High RF input power handling: 28 d Bm Low phase shift: 25° at 3 GHz Single-supply operation: 3 V to 5 V CMOS-/TTL-patible control 24-lead, 4 mm × 4 mm LFCSP package ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Extended industrial temperature range: - 55°C to +105°C Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Product change notification Qualification data available upon request 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 ACG1 ACG2 6-BIT/ DIGITAL ATTENUATOR 15 SEROUT 14 GND 13 ATTOUT ACG6 ACG5 ACG4 ACG3 8 9 10 11 12 PACKAGE BASE Figure 1. GENERAL DESCRIPTION The HMC624A-EP is a 6-bit digital attenuator with a 31.5 d B attenuation control range in 0.5 d B steps. The HMC624A-EP 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-EP is integrated with two dies: a CMOS driver and a gallium arsenide (Ga As) 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...