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Analog Devices Inc./Maxim Integrated MAX19998ETP+
- Part No.:
- MAX19998ETP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Mixers
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX19998ETP+.pdf
- Description:
- IC MIXER 2.3-4GHZ DWNCONV 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,040
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Product details
Overview
MAX19998ETP+ from Maxim Integrated is a SiGe high-linearity downconversion mixer for 2300MHz–4000MHz RF bands, delivering 8.7dB conversion gain, +24.3dBm input IP3, 9.7dB noise figure, and integrated LO buffer and on-chip baluns-enabling single-ended RF/LO inputs in WiMAX, LTE, and MMDS base station receivers.
For engineers reviewing the MAX19998ETP+ datasheet, MAX19998ETP+ pinout, MAX19998ETP+ application, or MAX19998ETP+ equivalent, this page provides verified RF frequency range, LO drive requirements, thermal performance data, IF output impedance, and pin-compatible alternatives for multi-band PCB reuse.
Technical Context
The MAX19998ETP+ implements a double-balanced passive mixer core with integrated IF amplifier and LO buffer, supporting both low-side and high-side LO injection across 2600MHz–4300MHz. Its on-chip baluns eliminate external transformers for RF and LO ports.
It operates from single 3.3V or 5.0V supply, with supply current of 150mA (3.3V) or 230mA (5.0V), and uses external resistors (R1/R2) to configure reduced-power mode. Performance is specified over –40°C to +85°C case temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 2300MHz to 4000MHz - covers full 2.5GHz/3.5GHz WiMAX/LTE and MMDS bands |
| LO Frequency Range | 2600MHz to 4300MHz - supports both low-side and high-side injection architectures |
| IF Frequency Range | 50MHz to 500MHz - compatible with standard IF filtering and ADC front-ends |
| Conversion Gain | 8.7dB typical - reduces need for post-mixer amplification in receiver chains |
| Input IP3 | +24.3dBm typical - enables robust operation in dense RF environments with strong interferers |
| Noise Figure | 9.7dB SSB - maintains SNR integrity for high-order QAM demodulation |
| LO Drive Level | –3dBm to +3dBm - accommodates low-power synthesizers without external amplification |
Pinout & Package
The MAX19998ETP+ is housed in a 5mm × 5mm, 20-pin thin QFN package with exposed pad (EP) for thermal management. Pin numbering follows standard QFN convention with pin 1 marked by dot or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Power supply input | Accepts 3.3V or 5.0V; decoupling required per datasheet layout guidelines |
| GND | Ground reference | Multiple GND pins (pins 2, 5, 8, 11, 14, 17, 20) ensure low-impedance return path |
| RF | RF input port | Differential-capable single-ended input via integrated balun; 50Ω matched |
| LO | LO input port | Single-ended LO input with integrated balun; requires –3dBm to +3dBm drive |
| IF+ | Differential IF output (+) | 200Ω nominal differential output impedance; transforms to 50Ω externally |
| IF– | Differential IF output (–) | Complements IF+; used with TC4-1W-17 or TC4-1W-7A transformer per application circuit |
| LOBIAS | LO buffer bias control | Adjusts LO buffer current via external resistor; sets LO drive capability |
| IFBIAS | IF amplifier bias control | Configures IF gain and power consumption using external resistor network |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LO buffer | Eliminates need for external LO driver stage, reducing BOM count and board area |
| On-chip RF and LO baluns | Enables direct single-ended RF/LO interface, removing discrete balun transformers |
| Pin compatibility with MAX19996/MAX19996A | Allows shared PCB layout across 2000–3900MHz and 2300–4000MHz frequency variants |
| External current-setting resistors | Permits trade-off between power consumption (150mA @ 3.3V) and linearity/performance |
| –40°C to +85°C case temperature rating | Validated for outdoor base station and fixed wireless access deployments |
Applications
| 2.5GHz WiMAX Base Stations | 3.5GHz LTE Base Stations |
|---|---|
Use Scenario: Downconversion of uplink signals in outdoor macrocell base stations operating in 2.5GHz licensed band. IC Role / Device Role / Timing Role: Primary RF-to-IF mixer in receive chain, translating 2500–2690MHz RF to 50–500MHz IF. Use Value: +24.3dBm IIP3 and 9.7dB NF enable support for 64-QAM modulation under co-channel interference. | Use Scenario: Receiver front-end in 3.5GHz TDD-LTE small cells deployed in urban fixed broadband wireless access networks. IC Role / Device Role / Timing Role: High-linearity downconverter handling 3400–3800MHz RF with high-side LO injection. Use Value: 67dBc 2RF–2LO rejection and >45dB RF-to-IF isolation prevent image and LO leakage corruption of IF signal. |
| 2.7GHz MMDS Base Stations | Military Tactical Radios |
Use Scenario: Legacy MMDS infrastructure upgrade requiring wideband mixer covering 2500–2700MHz RF with minimal redesign. IC Role / Device Role / Timing Role: Drop-in replacement for aging mixers in point-to-multipoint broadcast receivers. Use Value: Pin compatibility with MAX19996 family allows reuse of existing PCB layout and test fixtures. | Use Scenario: Secure, jam-resistant HF/VHF/UHF software-defined radio front-end requiring wide dynamic range and temperature stability. IC Role / Device Role / Timing Role: Core downconversion element in multi-band transceiver module operating from –40°C to +85°C. Use Value: <0.01dB/°C gain tempco and ±0.2dBm IIP3 variation over temperature ensure consistent intercept performance across environmental extremes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar downconversion mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX19996ETP+ | 2000–3900MHz RF range; identical pinout, package, and bias architecture | Optimized for 2.5GHz band; lower upper RF limit excludes 3.5GHz LTE | Select when operating strictly below 3900MHz and cost sensitivity favors mature variant |
| MAX9994ETX+ | 1700–2200MHz RF range; pin-similar but not pin-compatible; different LO range (1900–2400MHz) | Targeted at PCS/UMTS bands; requires PCB layout revision | Choose only for legacy 1.9GHz infrastructure where MAX19998ETP+ over-specifies |
Compared with MAX19996ETP+, the MAX19998ETP+ extends RF coverage to 4000MHz for 3.5GHz LTE while maintaining identical footprint and bias scheme; versus MAX9994ETX+, it delivers 700MHz higher RF range and 20dB better IIP3 but requires no layout change only when paired with MAX19996-family designs.
Availability
MAX19998ETP+ is available at Aetrix Electronics and suitable for 2.5GHz WiMAX base stations, 3.5GHz LTE infrastructure, and military communications systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX19998ETP+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and RF ICs for demanding industrial, communications, and automotive applications.
The MAX19998ETP+ belongs to Maxim's high-linearity SiGe mixer product line, engineered specifically for broadband wireless infrastructure receivers requiring wide RF/LO bandwidth, integrated signal conditioning, and thermal resilience.
FAQ
What is the recommended LO drive level for MAX19998ETP+?
The MAX19998ETP+ specifies a nominal LO drive of 0dBm, with an operational range of –3dBm to +3dBm. This low drive requirement eliminates the need for external LO amplifiers in most synthesizer-based architectures. Drive outside this range may degrade conversion gain, noise figure, or spur performance. The LO input uses an integrated balun, enabling direct connection from 50Ω sources.
Does MAX19998ETP+ support both low-side and high-side LO injection?
Yes, the MAX19998ETP+ supports both low-side and high-side LO injection across its full 2600MHz–4300MHz LO range. For low-side injection (fRF > fLO), it covers 2300–4000MHz RF with LO from 2600–3600MHz. For high-side injection (fRF < fLO), it handles RF from 2300–4000MHz using LO from 2600–4300MHz - enabling flexible architecture selection in multi-band base stations.
What is the IF output configuration of MAX19998ETP+?
The MAX19998ETP+ provides differential IF outputs (IF+ and IF–) with a nominal 200Ω differential impedance. External matching components-including Mini-Circuits TC4-1W-17 or TC4-1W-7A 4:1 transformers-are required to convert to 50Ω single-ended IF for ADC interfacing. Return loss exceeds 20dB across 50–500MHz when properly matched per the typical application circuit.
How does supply voltage affect MAX19998ETP+ performance?
At 5.0V, the MAX19998ETP+ delivers 8.7dB conversion gain and +24.3dBm IIP3 with 230mA supply current. At 3.3V, gain drops to 8.4dB and IIP3 to +20.1dBm, with current reduced to 150mA. Both configurations maintain full RF/LO bandwidth and thermal specification (–40°C to +85°C case temperature), allowing power-performance trade-offs via external R1/R2 bias resistors.
Is MAX19998ETP+ RoHS-compliant and lead-free?
Yes, the "+" suffix in MAX19998ETP+ denotes a lead(Pb)-free and RoHS-compliant package. It uses a 5mm × 5mm thin QFN with exposed pad (EP) and complies with JEDEC standards for moisture sensitivity level (MSL) 3. Full compliance documentation, including material declarations and test reports, is available through Analog Devices' product page for MAX19998ETP+.
MAX19998ETP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- RF Type:
- LTE, MMDS, WCS, WiMAX
- Frequency:
- 2.3GHz ~ 4GHz
- Number of Mixers:
- 1
- Gain:
- 8.7dB
- Noise Figure:
- 9.7dB
- Secondary Attributes:
- Down Converter
- Current - Supply:
- 230mA
- Voltage - Supply:
- 3V ~ 5.25V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX19998ETP+ FAQ
1.How can I place an order for MAX19998ETP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX19998ETP+ 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 MAX19998ETP+ reliable?
The price and inventory of MAX19998ETP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX19998ETP+ is usually 5 days.
3.What payment methods are accepted for MAX19998ETP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX19998ETP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX19998ETP+?
MAX19998ETP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX19998ETP+ 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 MAX19998ETP+?
For technical support, including MAX19998ETP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX19998ETP+ requirements.
6.How does Aetrix verify that MAX19998ETP+ is sourced from the original manufacturer or authorized distributors?
All MAX19998ETP+ 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 MAX19998ETP+ meets industry standards.
7.What is the process for return or replacement of MAX19998ETP+?
All MAX19998ETP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX19998ETP+, 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 MAX19998ETP+ part is unused and in its original packaging.
Return procedure for MAX19998ETP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX19998ETP+ Tags
-
MAX2671EUT+T
Analog Devices Inc./Maxim Integrated
-
ADEX-10+
Mini-Circuits
-
ADE-2+
Mini-Circuits
-
ADE-1+
Mini-Circuits
-
LT5560EDD#PBF
Analog Devices Inc.
-
LT5560EDD#TRPBF
Analog Devices Inc.
-
LTC5562IUC#TRPBF
Analog Devices Inc.
-
MAX2681EUT+T
Analog Devices Inc./Maxim Integrated
-
ADE-1ASK+
Mini-Circuits
-
ADE-1L+
Mini-Circuits
-
ADL5350ACPZ-R7
Analog Devices Inc.
-
AD608ARZ-RL
Analog Devices Inc.
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