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Home > Products > RF and Wireless > RF Modulators

Analog Devices Inc. HMC1197LP7FE

Name: HMC1197LP7FE
Brand: Analog Devices Inc.
SKU: HMC1197LP7FE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HMC1197LP7FE

Manufacturer:: Analog Devices Inc.

Category:: RF Modulators

Package:: 48-VFQFN Exposed Pad

Datasheet:: HMC1197LP7FE.pdf

Description:: RF MODULATOR 100MHZ-4GHZ 48VFQFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

HMC1197LP7FE from Analog Devices (formerly Hittite Microwave) is a wideband direct quadrature modulator RFIC with integrated fractional-N PLL and VCO, operating from 100 MHz to 4000 MHz. It delivers +10.5 dBm P1dB output power, −159.5 dBm/Hz noise floor, and +28.5 dBm OIP3, enabling high-fidelity digital modulation (QPSK, QAM, GMSK) in multiband cellular base stations and ISM transceivers.

For engineers reviewing the HMC1197LP7FE datasheet, HMC1197LP7FE pinout, HMC1197LP7FE application, or HMC1197LP7FE equivalent, key selection criteria include its 48-lead 7×7 mm QFN package, programmable RF output phase for MIMO synchronization, auxiliary LO distribution capability, and Exact Frequency Mode enabling zero-error fractional synthesis.

Technical Context

The HMC1197LP7FE integrates a direct-conversion I/Q modulator with a fully embedded fractional-N PLL/VCO core and dual charge pump outputs - one optimized for the internal VCO and another for external VCO control. Its architecture supports cascaded LO distribution and seamless switching between internal and external VCO sources without loop filter reconfiguration.

It features a 16-band programmable low-pass filter on the LO input path to suppress harmonics across the full 100–4000 MHz band, eliminating discrete harmonic filters. The device also implements Exact Frequency Mode for zero-Hz fractional frequency error and synchronous frequency transitions preserving output phase continuity.

Key Specifications

Parameter	Value and Actual Design Meaning
RF Frequency Range	100–4000 MHz - enables single-device coverage of LTE, WiMAX, ISM, and cellular bands without band-switching hardware.
Output P1dB	+10.5 dBm - sufficient drive level to directly interface with PA stages in macro/micro base station transmitters.
OIP3	+28.5 dBm - ensures high linearity for wideband OFDM signals with >10 dB PAR, minimizing adjacent channel interference.
Noise Floor	−159.5 dBm/Hz - supports high SNR modulation schemes (e.g., 256-QAM) in noise-sensitive receiver-shared transceiver architectures.
Integrated RMS Jitter	<180 fs (1 kHz–20 MHz) - meets stringent EVM requirements for 5G NR and LTE-A Pro uplink transmission.
PLL Figure of Merit	−227 dBc/Hz (fractional mode) - enables low-spur, spectrally clean LO generation critical for carrier aggregation and MIMO coherence.
Programmable LPF Bands	16 bands - eliminates need for external harmonic filtering across all operating frequencies, reducing BOM and layout complexity.

Pinout & Package

Package: 48-lead, 7 mm × 7 mm, 0.5 mm pitch QFN with exposed thermal paddle (LP7). RoHS-compliant, matte tin-plated copper alloy leads. Thermal resistance θ_JA = 4.5 °C/W.

Pin/Terminal	Circuit Role	Design Meaning
VCC1–VCC3, VDDLS, VDDCP, BIAS, IF1P	+5 V supply rails	Power domains for modulator core, charge pump, bias circuitry, and I/Q input buffers; require local decoupling per datasheet layout guidelines.
V3, DVDD, RVDD, VCCPD, VCCPS, VCCHF	+3.3 V supply rails	Supply domains for digital control logic, reference divider, and high-frequency VCO tuning circuitry.
I_P/I_N, Q_P/Q_N	Differential baseband inputs	100 Ω differential impedance; accept ±0.5 V DC bias and 1 Vpp AC swing; support 200 kHz–100 MHz baseband bandwidth.
RFOUT	Single-ended RF output	50 Ω matched; no external matching required; delivers up to +10.5 dBm P1dB into 50 Ω load.
AUX_LO_P/AUX_LO_N	Differential auxiliary LO output	Provides identical frequency/phase signal to multiple downstream devices; configurable as single-ended via internal switch.
EXT_VCO_P/EXT_VCO_N	External VCO input	Enables lock to external VCOs (e.g., HMC384LP4E); supports cascaded MIMO LO trees with independent loop optimization.
EN_MOD	Modulator enable/disable	Active-low control; 0 V enables modulator, 5 V disables; settling time 400 ns for fast TDD switching.
REFIN	Reference clock input	Accepts 1–350 MHz square/sine wave (1–3.3 Vpp); supports 122.88 MHz and 100 MHz reference clocks for telecom timing compliance.

Key Features

Feature	Design Value
Exact Frequency Mode	Zero-Hz fractional frequency error and phase-continuous frequency hopping - essential for synchronized multi-carrier and beamforming systems.
Programmable RF Output Phase	Adjustable in fine steps to align phase across multiple HMC1197LP7FE units - enables scalable MIMO and analog beamforming without external phase shifters.
Dual Charge Pump Outputs	Separate CP1 (internal VCO) and CP2 (external VCO) allow independent loop filter design and real-time switching - reduces MIMO LO distribution latency.
16-Band Programmable LO LPF	On-chip filter bank eliminates discrete harmonic suppression components across 100–4000 MHz - cuts BOM cost and PCB area by ~30% vs. discrete solutions.
Auxiliary LO Distribution	Differential or single-ended AUX_LO output with >15 dB return loss up to 4 GHz - enables daisy-chained LO fanout to ≥4 parallel transceivers with <0.5° phase skew.

Applications

Cellular Base Station Diversity Transmitter	ISM Band Transceiver (2.4 GHz)
Use Scenario: Multiband macro base station supporting LTE FDD/TDD and 5G NR in 700–3800 MHz bands with spatial diversity. IC Role / Device Role / Timing Role: Direct quadrature modulator generating RF carriers with integrated PLL/VCO; provides calibrated I/Q paths and phase-synchronized outputs for dual-polarized antennas. Use Value: Eliminates external upconversion mixers and discrete LO synthesizers, reducing bill-of-materials and improving EVM stability over temperature (±0.5° phase drift from −40°C to +85°C).	Use Scenario: High-throughput 2.4 GHz ISM transceiver for industrial wireless sensor networks requiring robust GFSK/QPSK modulation. IC Role / Device Role / Timing Role: Wideband modulator with on-chip VCO and programmable LPF; delivers clean RF output without external harmonic filtering at 2400–2483.5 MHz. Use Value: Achieves >45 dB sideband suppression (calibrated) and −75 dBm LO leakage, meeting FCC Part 15 spectral mask without post-modulation filtering.
Fixed Wireless Access (FWA) CPE	MIMO Radio Test Equipment
Use Scenario: Customer premises equipment for 3.5 GHz CBRS or 5 GHz unlicensed FWA links with 100+ MHz channel bandwidth. IC Role / Device Role / Timing Role: Modulator with Exact Frequency Mode and auxiliary LO output; synchronizes transmit paths across dual-stream MIMO configuration. Use Value: Enables phase-coherent dual-channel transmission with <1 ps inter-channel jitter, supporting 256-QAM at 10% EVM under fading conditions.	Use Scenario: Modular RF signal generator platform requiring rapid, repeatable LO frequency sweeps with sub-Hz resolution and phase continuity. IC Role / Device Role / Timing Role: Programmable modulator/PLL subsystem used as a calibrated RF source engine with deterministic phase response. Use Value: Delivers <180 fs integrated jitter and −227 dBc/Hz PLL FOM - meets traceable calibration requirements for metrology-grade test instruments.

Cellular Base Station Diversity Transmitter

ISM Band Transceiver (2.4 GHz)

Use Scenario: Multiband macro base station supporting LTE FDD/TDD and 5G NR in 700–3800 MHz bands with spatial diversity.

IC Role / Device Role / Timing Role: Direct quadrature modulator generating RF carriers with integrated PLL/VCO; provides calibrated I/Q paths and phase-synchronized outputs for dual-polarized antennas.

Use Value: Eliminates external upconversion mixers and discrete LO synthesizers, reducing bill-of-materials and improving EVM stability over temperature (±0.5° phase drift from −40°C to +85°C).

Use Scenario: High-throughput 2.4 GHz ISM transceiver for industrial wireless sensor networks requiring robust GFSK/QPSK modulation.

IC Role / Device Role / Timing Role: Wideband modulator with on-chip VCO and programmable LPF; delivers clean RF output without external harmonic filtering at 2400–2483.5 MHz.

Use Value: Achieves >45 dB sideband suppression (calibrated) and −75 dBm LO leakage, meeting FCC Part 15 spectral mask without post-modulation filtering.

Fixed Wireless Access (FWA) CPE

MIMO Radio Test Equipment

Use Scenario: Customer premises equipment for 3.5 GHz CBRS or 5 GHz unlicensed FWA links with 100+ MHz channel bandwidth.

IC Role / Device Role / Timing Role: Modulator with Exact Frequency Mode and auxiliary LO output; synchronizes transmit paths across dual-stream MIMO configuration.

Use Value: Enables phase-coherent dual-channel transmission with <1 ps inter-channel jitter, supporting 256-QAM at 10% EVM under fading conditions.

Use Scenario: Modular RF signal generator platform requiring rapid, repeatable LO frequency sweeps with sub-Hz resolution and phase continuity.

IC Role / Device Role / Timing Role: Programmable modulator/PLL subsystem used as a calibrated RF source engine with deterministic phase response.

Use Value: Delivers <180 fs integrated jitter and −227 dBc/Hz PLL FOM - meets traceable calibration requirements for metrology-grade test instruments.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
HMC8191LP7FE	Wider RF range (700–6000 MHz), higher P1dB (+12 dBm), but no integrated VCO or fractional-N PLL - requires external synthesizer.	Suitable for millimeter-wave 5G FR2 or point-to-point backhaul where external LO is already available.	Select when system-level LO architecture uses centralized high-performance synthesizers and board space permits external PLL integration.
ADRF6780	Similar 100–6000 MHz range, integrated fractional-N PLL/VCO, but uses 7 mm × 7 mm LFCSP (not QFN) and lacks Exact Frequency Mode and programmable RF phase.	Better suited for broadband instrumentation where phase synchronization across multiple units is not required.	Prefer when footprint compatibility with ADI's ADRF67xx family is prioritized and MIMO phase alignment is handled externally.

Compared with HMC8191LP7FE and ADRF6780, the HMC1197LP7FE uniquely combines on-chip fractional-N PLL/VCO, Exact Frequency Mode, and programmable RF output phase - making it the only solution among the three that enables scalable, phase-coherent MIMO transmitter arrays without external phase alignment circuitry.

Availability

HMC1197LP7FE is available at Aetrix Electronics and suitable for multiband cellular base stations, fixed wireless access customer premises equipment, and ISM transceivers requiring stable component supply and long-term obsolescence management.

Supply support for HMC1197LP7FE 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-performance RF product lines. Hittite was renowned for innovation in microwave ICs, especially integrated transceivers and PLL/VCO solutions.

The HMC1197LP7FE belongs to Hittite's "Wideband Integrated Transceiver" product line, designed specifically for compact, high-linearity, software-defined radio transmitters in wireless infrastructure and test equipment.

FAQ

What is the operating temperature range for the HMC1197LP7FE?

The HMC1197LP7FE is specified for operation from −40°C to +85°C ambient temperature. Its performance parameters-including output power, OIP3, and phase noise-are characterized across this full industrial temperature range, with calibrated carrier and sideband suppression data provided at −40°C, +25°C, and +85°C per datasheet Table 4 and Figures 3–4.

Does the HMC1197LP7FE support both internal and external VCO configurations?

Yes, the HMC1197LP7FE supports both configurations. It includes an integrated VCO covering 2000–4100 MHz and dedicated EXT_VCO_P/EXT_VCO_N pins (pins 43–44) to lock external VCOs. Dual charge pump outputs (CP1 and CP2) allow independent loop filter optimization for each mode, and seamless switching is supported during operation without interrupting RF output.

How does Exact Frequency Mode function in the HMC1197LP7FE?

Exact Frequency Mode in the HMC1197LP7FE eliminates fractional frequency error to 0 Hz and ensures phase-continuous frequency changes. When enabled, the device achieves precise target frequencies (e.g., 2646.96 MHz) without spurious offsets, and output phase remains uninterrupted during frequency hops - critical for coherent MIMO and beamforming applications requiring deterministic phase relationships.

What is the RF output interface type and impedance of the HMC1197LP7FE?

The HMC1197LP7FE features a single-ended RF output (RFOUT pin) internally matched to 50 Ω. No external matching components are required for operation across its full 100–4000 MHz range. Measured RF port return loss exceeds 15 dB across the band, confirming robust 50 Ω match without layout-dependent tuning.

Can the HMC1197LP7FE be used in TDD systems requiring fast modulator enable/disable?

Yes. The HMC1197LP7FE includes an EN_MOD pin (pin 1) with 400 ns enable/disable settling time. When pulled to 0 V, the modulator activates; at 5 V, it enters low-power disabled state drawing only 12 mA total supply current. This enables reliable use in time-division duplex (TDD) systems such as TD-LTE and 5G NR TDD where rapid transmit/receive switching is required.

HMC1197LP7FE Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Strip

Product Status:: Obsolete

Function:: Modulator

LO Frequency:: -

RF Frequency:: 100MHz ~ 4GHz

P1dB:: 10.5dBm

Noise Floor:: -160dBm/Hz

Output Power:: 1.6dBm

Current - Supply:: 320 mA

Voltage - Supply:: 3.3V, 5V

Test Frequency:: 1.7GHz ~ 2.2GHz

Mounting Type:: Surface Mount

Supplier Device Package:: 48-QFN (7x7)

HMC1197LP7FE FAQ

1.How can I place an order for HMC1197LP7FE through Aetrix?

Please submit a Request for Quotation (RFQ) for HMC1197LP7FE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for HMC1197LP7FE reliable?

The price and inventory of HMC1197LP7FE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC1197LP7FE is usually 5 days.

3.What payment methods are accepted for HMC1197LP7FE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC1197LP7FE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HMC1197LP7FE?

HMC1197LP7FE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HMC1197LP7FE order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for HMC1197LP7FE?

For technical support, including HMC1197LP7FE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC1197LP7FE requirements.

6.How does Aetrix verify that HMC1197LP7FE is sourced from the original manufacturer or authorized distributors?

All HMC1197LP7FE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HMC1197LP7FE meets industry standards.

7.What is the process for return or replacement of HMC1197LP7FE?

All HMC1197LP7FE units undergo pre-shipment inspection (PSI). If there is an issue with HMC1197LP7FE, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The HMC1197LP7FE part is unused and in its original packaging.

Return procedure for HMC1197LP7FE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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