HMC1122 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

HMC1122
Manufacturer

ADI
ChipWorker Part#

CW1205236463
Description

0.1GHz to 6GHz, 0.5dB LSB, 6Bit, Silicon Digital Attenuator
Documentation

Datasheet

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HMC1122 Specifications

Attribute	Attribute Value

Part Number	HMC1122
Manufacturer	ADI
ChipWorker Part#	CW1205236463
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
The HMC1122 is a 6-bit digital attenuator operating from 0.1 GHz to 6 GHz with a 31.5 dB attenuation control range in 0.5 dB steps.
The HMC1122 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.
The HMC1122 operates on a single supply ranging from 3.3 V to 5 V with no performance change due to an on-chip regulator.
The device incorporates a driver that provides both serial and parallel control of the attenuator. The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.
The HMC1122 comes in a RoHS compliant, compact, 4 mm × 4 mm LFCSP package, and is pin compatible to the HMC624A.
A fully populated evaluation board is available.
Applications
Cellular infrastructure
Microwave radios and very small aperture terminals (VSATs)
Test equipment and sensors
IF and RF designs
### Features and Benefits
Attenuation range: 0.5 dB LSB steps to 31.5 dB
Low insertion loss
1.1 dB at 1 GHz
1.3 dB at 2 GHz
Typical step error: less than ±0.1 dB
Excellent attenuation accuracy
Safe state transitions
High linearity
Input 0.1dB compression (P0.1dB): 30 dBm typical
Input third-order intercept (IP3): 55 dBm typical
RF settling time (0.05 dB final RF output): 250 ns
Low phase shift error: 6° at 1 GHz
Single supply operation: 3.3 V to 5 V
ESD rating: Class 2 (2 kV HBM)
24-lead, 4 mm × 4 mm LFCSP package: 16 mm2
Pin compatible to the HMC624A

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