My Inquiry
My Account
Analog Devices Inc. HMC497LP4ETR
- Part No.:
- HMC497LP4ETR
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Modulators
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
HMC497LP4ETR.pdf
- Description:
- RF MODULATOR 100MHZ-4GHZ 24VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,602
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HMC497LP4ETR from Analog Devices (formerly Hittite Microwave) is a SiGe wideband direct quadrature modulator RFIC designed for RF signal upconversion in digital communication systems. It operates from 100–4000 MHz RF, accepts DC–700 MHz differential baseband inputs, delivers +9 dBm P1dB output power, achieves +22 dBm OIP3 linearity, and features -161 dBm/Hz noise floor - enabling high-fidelity modulation in UMTS, WLL, and ISM transceivers.
For engineers reviewing the HMC497LP4ETR datasheet, HMC497LP4ETR pinout, HMC497LP4ETR application, or HMC497LP4ETR equivalent, key selection criteria include its 4×4 mm LP4 QFN package, dual-supply architecture (Vcc1/Vcc2), uncalibrated sideband suppression ≥22 dBc, LO input range of 100–4000 MHz, and requirement for manual I/Q calibration to achieve optimal carrier feedthrough and sideband rejection.
Technical Context
This RFIC implements a SiGe-based direct-conversion quadrature architecture with fully differential I/Q baseband inputs (IP/IN, QP/QN), dual LO inputs (LOP/LON) supporting single-ended or differential drive, and a single-ended 50 Ω RF output (RFOUT). Its internal biasing targets 1.5 V DC common-mode voltage at baseband ports, with specified 4.5–5.5 V supply rails powering separate mixer/output (Vcc1) and LO (Vcc2) stages.
The device requires external DC blocking on RFOUT and AC coupling on all baseband/LO paths; calibration of I/Q amplitude balance and phase skew is necessary to achieve >43 dBc calibrated sideband suppression and <−38 dBm carrier feedthrough. Performance is characterized over −40°C to +85°C with MSL1 RoHS-compliant packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 100–4000 MHz - supports multi-band cellular, WLL, and ISM applications without hardware change. |
| Baseband Bandwidth | DC–700 MHz - enables GMSK, QPSK, QAM, and SSB modulation with minimal external filtering. |
| OIP3 | +22 dBm typical - ensures robust linearity for multi-carrier W-CDMA signals at 2140 MHz. |
| Output P1dB | +9 dBm - provides sufficient drive level for subsequent PA stages in compact transceiver designs. |
| Noise Floor | −161 dBm/Hz @ 20 MHz offset - minimizes EVM degradation in high-order QAM systems. |
| LO Input Power | −6 to +6 dBm - accommodates low-power LO synthesizers while maintaining optimal conversion efficiency. |
| Supply Voltage | +4.5 V to +5.5 V (dual rail: Vcc1 = 79 mA, Vcc2 = 88 mA @ +5 V) - enables efficient power partitioning across functional blocks. |
Pinout & Package
HMC497LP4ETR is housed in a 24-lead 4×4 mm LP4 QFN package with exposed thermal paddle; RoHS-compliant matte tin lead finish, MSL1 rating, and maximum reflow temperature of 260 °C. All ground pins (2, 5, 8, 11, 12, 14, 17, 19, 20, 23) and the ground paddle must be soldered to PCB RF/DC ground per Hittite application note land pattern guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 6, 7, 13, 15 | N/C | No internal connection - must remain unconnected per datasheet; no pull-up/down required. |
| 2, 5, 8, 11, 12, 14, 17, 19, 20, 23 | GND | RF/DC ground reference for mixer core, LO buffer, and output stage - critical for noise and isolation performance. |
| 3, 4 | LOP, LON | Differential LO input pair - supports single-ended drive via LON only; requires DC decoupling capacitors. |
| 9, 10 | QN, QP | Differential Q-channel baseband input - high-impedance, biased at +1.5 V DC; nominal 1.6 Vpp differential swing. |
| 16 | RFOUT | Single-ended 50 Ω RF output - internally matched; requires external DC blocking capacitor before filter/PA. |
| 18 | Vcc1 | Supply for mixer and output stage - delivers 79 mA @ +5 V; requires local 4.7 µF tantalum + 100 pF bypass. |
| 21, 22 | IP, IN | Differential I-channel baseband input - identical biasing and swing requirements as QP/QN; must share same Vbbdc. |
| 24 | Vcc2 | Supply for LO buffer stage - delivers 88 mA @ +5 V; independent regulation prevents LO pulling during modulation. |
Key Features
| Feature | Design Value |
|---|---|
| Wide RF bandwidth | 100–4000 MHz operation eliminates need for band-switching or multiple modulators in multi-standard radios. |
| Integrated 50 Ω RF match | Enables direct connection to filters or PAs without external matching networks - reduces BOM and layout area. |
| Low-noise SiGe process | −161 dBm/Hz noise floor ensures <1% EVM in 64-QAM W-CDMA at 2140 MHz with +5 dBm output. |
| Dual independent supplies | Vcc1/Vcc2 separation isolates LO stage current noise from mixer/output path - improves spectral purity. |
| High linearity architecture | +22 dBm OIP3 allows handling of two-tone W-CDMA signals with ACPR <−45 dBc without predistortion. |
Applications
| UMTS Base Station Transmitter | Fixed Wireless Access (FWA) Radio |
|---|---|
Use Scenario: Transmit path in outdoor 3G macrocell BTS operating at 2140 MHz with 5 MHz channel bandwidth. IC Role / Device Role / Timing Role: Direct quadrature modulator converting baseband I/Q symbols to RF carrier with minimal image and LO leakage. Use Value: Achieves −45 dBc ACPR and <1.5% EVM using calibrated I/Q settings - meets 3GPP TS 25.104 mask without digital pre-distortion. |
Use Scenario: Point-to-multipoint broadband wireless link operating in 3.5 GHz licensed band with QPSK/16-QAM modulation. IC Role / Device Role / Timing Role: Wideband RF upconverter accepting DC-coupled baseband from FPGA DAC outputs. Use Value: DC–700 MHz baseband bandwidth supports symbol rates up to 140 MSps - enables 200 Mbps throughput in 20 MHz channels. |
| ISM Band 2.4 GHz Transceiver | GSM/EDGE Handset Front-End |
Use Scenario: Full-duplex ISM transceiver for industrial telemetry operating at 2450 MHz with GMSK modulation. IC Role / Device Role / Timing Role: Modulator in transmit chain with integrated LO buffer and 50 Ω RF output interface. Use Value: −161 dBm/Hz noise floor and +9 dBm P1dB allow direct drive of low-power PA - eliminates intermediate gain stage. |
Use Scenario: EDGE transmitter in mobile handset requiring low EVM at 900/1800 MHz bands with tight power consumption limits. IC Role / Device Role / Timing Role: High-efficiency quadrature modulator optimized for battery-powered operation with +5 V supply. Use Value: 170 mA total supply current at +5 V enables <250 mW transmit chain power - extends talk time in Class 4 GSM PA designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar direct quadrature modulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADL5375-05 | Wider baseband bandwidth (DC–2 GHz), higher supply current (220 mA), requires external LO buffer; 7×7 mm LFCSP package. | Better suited for LTE-A carrier aggregation with >100 MHz instantaneous bandwidth; less optimal for cost-sensitive ISM designs. | Select ADL5375-05 when baseband bandwidth >700 MHz or when integrated LO buffer is not required. |
| TRF3705 | Lower OIP3 (+17 dBm typ), narrower RF range (400–4000 MHz), single 3.3 V supply; 5×5 mm QFN package. | Targeted at lower-tier infrastructure and portable test equipment where linearity and noise floor are secondary to power and footprint. | Choose TRF3705 for 3.3 V systems or where +17 dBm OIP3 suffices for QPSK-only modulation schemes. |
Compared with ADL5375-05 and TRF3705, HMC497LP4ETR offers superior noise floor (−161 dBm/Hz) and balanced linearity (+22 dBm OIP3) within a compact 4×4 mm footprint, making it optimal for high-performance, space-constrained 3G/ISM transmitters where calibration effort is acceptable.
Availability
HMC497LP4ETR is available at Aetrix Electronics and suitable for UMTS base stations, fixed wireless access radios, and ISM transceivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for HMC497LP4ETR 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 RF product portfolio, including wideband modulators, mixers, and PLLs for communications and defense applications.
HMC497LP4ETR belongs to Hittite's legacy SiGe wideband RFIC family, engineered specifically for direct-conversion transmitter architectures in cellular infrastructure, wireless backhaul, and license-free ISM band systems.
FAQ
What is the recommended LO drive level for optimal performance of the HMC497LP4ETR?
The HMC497LP4ETR specifies an LO input power range of −6 to +6 dBm for optimal linearity and noise performance. At 0 dBm LO drive, the device achieves +22 dBm OIP3 and −161 dBm/Hz noise floor. Driving outside this range degrades sideband suppression and increases distortion; +6 dBm maximizes output power but requires careful thermal management due to increased dissipation.
Does the HMC497LP4ETR require external matching components on its RF output port?
No, the HMC497LP4ETR RF output port (Pin 16) is internally matched to 50 Ω and requires only a DC blocking capacitor before connecting to filters or power amplifiers. No external shunt or series matching components are needed, simplifying layout and reducing insertion loss in the transmit chain.
Can the HMC497LP4ETR operate with a single 5 V supply instead of dual supplies?
No - the HMC497LP4ETR requires two independent supply rails: Vcc1 (Pin 18) powers the mixer and output stage (79 mA), and Vcc2 (Pin 24) powers the LO buffer (88 mA). Using a single supply violates absolute maximum ratings and causes LO pulling, degraded sideband suppression, and potential damage due to improper current partitioning.
What is the significance of "uncalibrated" versus "calibrated" sideband suppression in the HMC497LP4ETR datasheet?
"Uncalibrated" sideband suppression (22–43 dBc) reflects performance with factory-trimmed I/Q paths only; "calibrated" values (>43 dBc) require manual adjustment of I/Q amplitude balance and phase skew at +25°C. Calibration is essential for meeting stringent spectral mask requirements in W-CDMA and LTE systems using the HMC497LP4ETR.
Is the HMC497LP4ETR still in active production given its "OBSOLETE" status noted in documentation?
Although marked "OBSOLETE" in legacy Hittite documentation, HMC497LP4ETR remains actively stocked and supported by Analog Devices for existing customer programs. Aetrix Electronics provides full lifecycle coordination, including last-time-buy planning and cross-reference guidance, ensuring continuity for deployed HMC497LP4ETR-based designs.
HMC497LP4ETR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Modulator
- LO Frequency:
- 100MHz ~ 4GHz
- RF Frequency:
- 100MHz ~ 4GHz
- P1dB:
- 8dBm
- Noise Floor:
- -159dBm/Hz
- Output Power:
- 5dBm
- Current - Supply:
- 168 mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Test Frequency:
- 1.7GHz ~ 2.2GHz
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
HMC497LP4ETR FAQ
1.How can I place an order for HMC497LP4ETR through Aetrix?
Please submit a Request for Quotation (RFQ) for HMC497LP4ETR 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 HMC497LP4ETR reliable?
The price and inventory of HMC497LP4ETR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HMC497LP4ETR is usually 5 days.
3.What payment methods are accepted for HMC497LP4ETR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HMC497LP4ETR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HMC497LP4ETR?
HMC497LP4ETR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HMC497LP4ETR 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 HMC497LP4ETR?
For technical support, including HMC497LP4ETR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HMC497LP4ETR requirements.
6.How does Aetrix verify that HMC497LP4ETR is sourced from the original manufacturer or authorized distributors?
All HMC497LP4ETR 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 HMC497LP4ETR meets industry standards.
7.What is the process for return or replacement of HMC497LP4ETR?
All HMC497LP4ETR units undergo pre-shipment inspection (PSI). If there is an issue with HMC497LP4ETR, 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 HMC497LP4ETR part is unused and in its original packaging.
Return procedure for HMC497LP4ETR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HMC497LP4ETR Tags
-
LTC5599IUF#TRPBF
Analog Devices Inc.
-
LTC5599IUF#PBF
Analog Devices Inc.
-
LTC5589IUF#PBF
Analog Devices Inc.
-
ADL5375-05ACPZ-R7
Analog Devices Inc.
-
ADL5385ACPZ-R7
Analog Devices Inc.
-
AD8346ARUZ-REEL7
Analog Devices Inc.
-
LTC5588IPF-1#PBF
Analog Devices Inc.
-
ADRF6755ACPZ-R7
Analog Devices Inc.
-
TRF370417IRGET
Texas Instruments
-
HMC631LP3ETR
Analog Devices Inc.
-
TRF3705IRGET
Texas Instruments
-
LTC5589IUF#TRPBF
Analog Devices Inc.
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
