Analog Devices Inc. HMC1097LP4E

Overview

HMC1097LP4E from Analog Devices (formerly Hittite Microwave) is a wideband direct quadrature modulator IC operating from 100 MHz to 6 GHz, delivering +11 dBm output P1dB, −160 dBm/Hz noise floor, and +31 dBm OIP3 at 2.2 GHz - ideal for W-CDMA and LTE base station transmit chains requiring high modulation accuracy and low LO leakage.

For engineers reviewing the HMC1097LP4E datasheet, HMC1097LP4E pinout, HMC1097LP4E application, or HMC1097LP4E equivalent, this RFIC enables zero-IF/low-IF direct conversion with calibrated carrier suppression down to −57.1 dBm and sideband suppression up to 48 dBc - critical for spectral mask compliance in cellular infrastructure and WiMAX transceivers.

Technical Context

The HMC1097LP4E integrates a high-accuracy LO quadrature phase splitter, limiting amplifiers, and I/Q double-balanced mixers with differential baseband inputs (IP/IN, QP/QN) and a single-ended 50 Ω RFOUT port. It operates from a single +5 V supply and supports both differential and single-ended LO drive (−6 to +6 dBm).

Carrier and sideband suppression are optimized via external DC offset tuning on I/Q baseband inputs (typical <15 mV), while enable/disable control (EN pin) provides 400 ns settling and reduces LO leakage by 57.1 dB at 2.1 GHz when asserted.

Key Specifications

Pinout & Package

Package: 24-lead, 4 mm × 4 mm QFN (LP4) with exposed ground paddle; RoHS-compliant, MSL1, thermal resistance 9 °C/W junction-to-paddle.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar direct quadrature modulator applications.

Compared with ADL5375-05 and TRF372017, the HMC1097LP4E delivers superior 5–6 GHz coverage, −160 dBm/Hz noise floor, and calibrated carrier suppression down to −57.1 dBm - making it the preferred choice for high-performance, multiband cellular infrastructure where spectral purity and wideband linearity are non-negotiable.

Availability

HMC1097LP4E is available at Aetrix Electronics and suitable for cellular basestation design, WiMAX CPE development, and ISM-band transceiver production requiring stable component supply across extended temperature (−40°C to +85°C) and long product lifecycles.

Supply support for HMC1097LP4E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices acquired Hittite Microwave in 2014 and maintains its high-frequency RFIC portfolio for demanding communications infrastructure applications.

The HMC1097LP4E belongs to Analog Devices' broadband modulator product line, engineered specifically for zero-IF cellular, WiMAX, and broadband wireless access systems requiring wide instantaneous bandwidth and calibrated spectral purity.

FAQ

What is the recommended LO drive level for the HMC1097LP4E?

The HMC1097LP4E accepts −6 dBm to +6 dBm LO input power in either single-ended (via LON) or differential mode. At 0 dBm, it achieves optimal OIP3 (+31 dBm) and noise floor (−160 dBm/Hz) across 1.7–2.2 GHz. Driving outside this range degrades carrier suppression and increases distortion; the LO limiting amplifiers maintain consistent mixer performance across the full specified range.

How is carrier feedthrough calibrated on the HMC1097LP4E?

Carrier feedthrough on the HMC1097LP4E is calibrated by applying small DC offset voltages (<15 mV typical) to the differential I and Q baseband inputs (IP/IN, QP/QN). For example, at 2.5 GHz, a Q-channel offset of +2 mV and I-channel offset of −3 mV achieves minimum carrier leakage. This manual calibration is performed once per band and held constant over temperature.

Does the HMC1097LP4E require external matching components at the RF output?

No. The HMC1097LP4E's RFOUT pin is internally matched to 50 Ω across 100–6000 MHz, eliminating the need for external matching networks. Only a single DC-blocking capacitor is required at the RF output to prevent DC coupling into downstream components such as power amplifiers or antennas.

What is the function of the EN pin on the HMC1097LP4E?

The EN pin on the HMC1097LP4E controls device enable/disable: grounded or floating = enabled (170 mA total supply current); tied to +5 V = disabled (8 mA), shutting down LO amplifiers, mixers, and output stage. LO leakage drops by 57.1 dB at 2.1 GHz in disable mode, with 400 ns settling time - ideal for TDD systems.

Can the HMC1097LP4E be used for SSB modulation?

Yes. With calibrated sideband suppression up to 48 dBc and carrier feedthrough ≤−57.1 dBm, the HMC1097LP4E supports high-fidelity SSB generation. When combined with external analog filtering or digital cancellation, it meets ITU-R BS.1115 requirements for DRM and HF broadcast applications across 3–30 MHz via harmonic mixing or direct synthesis.