HMC1122 0.1 GHz to 6.0 GHz, 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator

A fully populated evaluation board is available.

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.

Applications

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

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

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

Data Sheets

Document	note
HMC1122: 0.1 GHz to 6.0 GHz, 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator Data Sheet (Rev. 0)	PDF 605.07 K

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
HMC1122LP4ME Production	24 ld LFCSP (4x4mm w/2.7mm EP)	OTH 50	-40 to 85C	4.38	3.62	Y
HMC1122LP4METR Production	24 ld LFCSP (4x4mm w/2.7mm EP)	REEL 500	-40 to 85C	4.38	3.62	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EV2HMC1122LP4M	Evaluation Board	-1	Y

HMC1122: 0.1 GHz to 6.0 GHz, 0.5 dB LSB, 6-Bit, Silicon Digital Attenuator Data Sheet (Rev. 0) hmc1122

HMC1122LP4ME IBIS Model hmc1122

HMC1122 S-Parameters hmc1122