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Analog Devices Inc./Maxim Integrated MAX2051ETP+
- Part No.:
- MAX2051ETP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Mixers
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX2051ETP+.pdf
- Description:
- IC MIXER 850MHZ-1.55GHZ 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:126
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Product details
Overview
MAX2051ETP+ from Maxim Integrated is a SiGe high-linearity up/downconversion mixer designed for RF-to-IF signal translation in cable head-end and wireless infrastructure systems. It delivers +35dBm input IP3, 7.8dB noise figure, and 7.4dB conversion loss across 850–1550MHz RF, 1200–2250MHz LO, and 50–1000MHz IF bands-enabling DOCSIS 3.0/Euro DOCSIS downstream video and CMTS applications.
For engineers reviewing the MAX2051ETP+ datasheet, MAX2051ETP+ pinout, MAX2051ETP+ application, or MAX2051ETP+ equivalent, this page provides verified RF mixer specifications, thermal and supply current behavior over -40°C to +85°C, differential IF output interface details, integrated balun functionality, and real-world spurious rejection performance at defined PRF/PLo conditions.
Technical Context
The MAX2051ETP+ implements a double-balanced Gilbert-cell mixer core with on-die RF and LO baluns, enabling single-ended 50Ω interfaces without external transformers. Its integrated LO buffer accepts -3dBm to +3dBm drive and delivers sufficient swing to the active mixer core while maintaining high-side LO injection capability (fLO > fRF).
It supports both downconversion (e.g., 1200MHz RF → 500MHz IF with 1700MHz LO) and upconversion (e.g., 350MHz IF → 1250MHz RF with 1600MHz LO), with differential IF outputs optimized for 2RF-LO and 2LO-2RF suppression-achieving 88dBc and 79dBc typical rejection respectively at PRF = -14dBm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 850MHz to 1550MHz - supports full DOCSIS 3.0 downstream spectrum and Edge QAM channel aggregation. |
| LO Frequency Range | 1200MHz to 2250MHz - enables high-side injection for wide IF coverage up to 1000MHz. |
| IF Frequency Range | 50MHz to 1000MHz - accommodates baseband, low-IF, and high-IF architectures with differential output. |
| Input IP3 (IIP3) | +35dBm typical - ensures robust multicarrier linearity in dense cable head-end environments. |
| Noise Figure (NF) | 7.8dB typical - maintains SNR integrity in receiver front-ends before IF amplification. |
| Conversion Loss | 7.4dB typical - defines signal attenuation from RF to IF path; stable ±0.5dB vs. frequency and temperature. |
| LO Drive Requirement | 0dBm nominal - reduces need for external LO amplification; compatible with low-power synthesizers. |
| Supply Current | 130mA max at VCC = 5.25V - enables predictable power budgeting in thermally constrained modules. |
Pinout & Package
The MAX2051ETP+ is housed in a 5mm × 5mm, 20-pin thin QFN package with exposed pad (EP), requiring solder connection of EP to PCB ground for thermal management and RF performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RF) | Single-ended RF input | 50Ω matched port internally DC-shortened via balun; requires external DC-blocking capacitor. |
| 7 (LOBIAS) | LO amplifier bias control | Connects to VCC via 61.9Ω ±1% resistor to set LO buffer bias current for optimal linearity. |
| 12 (LO) | Single-ended LO input | 50Ω matched port; accepts -3dBm to +3dBm drive; supports high-side injection. |
| 16, 17 (IF+, IF-) | Differential IF output | Provides balanced output for improved spurious rejection; requires external 1:1 transformer for single-ended IF interface. |
| 2–5, 9–11, 13, 14, 18–20 (GND) | Ground terminals | Multiple GND pins-including dedicated EP-connected and isolated GNDs-enable low-inductance grounding and thermal dissipation. |
| 6, 8, 15 (VCC) | Power supply inputs | Three independent VCC pins reduce supply impedance; require local 0.1µF + 10µF bypassing per pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF and LO baluns | Eliminates external broadband transformers; enables compact 50Ω single-ended RF/LO interface design. |
| On-chip LO buffer | Reduces required LO drive to -3dBm to +3dBm range, simplifying synthesizer selection and reducing system power. |
| Differential IF output | Improves common-mode rejection and suppresses even-order spurs (e.g., 2RF-LO, 2LO-2RF) by up to 10dB vs. single-ended alternatives. |
| External current-setting resistor | LOBIAS-to-VCC resistor allows trade-off between power consumption and linearity/performance in reduced-power mode. |
| DOCSIS 3.0 & Euro DOCSIS compliance | Validated spurious performance (≥77dBc 2RF-LO rejection at PRF = -14dBm) meets stringent cable head-end spectral purity requirements. |
Applications
| Cable Modem Termination System (CMTS) | DOCSIS 3.0 Downstream Video |
|---|---|
Use Scenario: Downconverting 1200–1550MHz downstream RF carriers to 50–1000MHz IF for digitization and demodulation in multiport CMTS chassis. IC Role / Device Role / Timing Role: High-linearity RF-to-IF mixer with integrated baluns and LO buffer, operating in high-side LO injection mode. Use Value: +35dBm IIP3 prevents intermodulation distortion across 100+ QAM channels; 7.8dB NF preserves EVM in dense constellation decoding. | Use Scenario: Processing DOCSIS-compliant downstream signals in edge QAM modulators for video-on-demand delivery. IC Role / Device Role / Timing Role: Up/downconverter supporting flexible IF placement (e.g., 350MHz IF for upconversion, 500MHz IF for downconversion). Use Value: 88dBc 2RF-LO rejection ensures compliance with DOCSIS spectral mask; differential IF minimizes PCB layout sensitivity. |
| Microwave Fixed Wireless Access | Predistortion Receiver |
Use Scenario: Translating 1.2–2.2GHz licensed band signals in point-to-multipoint base stations for backhaul or last-mile access. IC Role / Device Role / Timing Role: Wideband mixer supporting both upconversion (IF→RF) and downconversion (RF→IF) with stable conversion loss across temperature. Use Value: 7.4dB conversion loss and ±0.5dB variation enable predictable link budget modeling; 130mA ICC supports thermal design in sealed enclosures. | Use Scenario: Capturing feedback path signals in digital predistortion (DPD) loops for GaN PA linearization in macrocell base stations. IC Role / Device Role / Timing Role: High-dynamic-range downconverter capturing PA output spectrum with minimal added distortion. Use Value: +35dBm IIP3 avoids compression-induced DPD algorithm errors; 77–88dBc spurious rejection prevents false spectral peaks in FFT-based analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC774ALC3B | Higher LO drive requirement (+13dBm); 24-pin SMT package; no integrated LO buffer or baluns. | Requires external LO amplification and balun transformers; better suited for lab/test setups than space-constrained CMTS cards. | Select when higher LO power is available and discrete component count is acceptable for ultimate linearity. |
| ADL5802ACPZ-R7 | Wider RF range (10MHz–6GHz); lower IIP3 (+24dBm); no integrated baluns; requires external matching networks. | More flexible for multiband wireless but lacks DOCSIS-optimized spurious rejection; not production-validated for cable head-end thermal cycling. | Select for general-purpose wideband mixing where DOCSIS compliance is not required. |
Compared with HMC774ALC3B and ADL5802ACPZ-R7, the MAX2051ETP+ uniquely integrates baluns and an LO buffer to simplify board layout, achieves superior IIP3 and spurious rejection specifically validated for DOCSIS 3.0, and operates reliably across -40°C to +85°C without derating-making it optimal for high-density, thermally demanding cable infrastructure.
Availability
MAX2051ETP+ is available at Aetrix Electronics and suitable for cable modem termination systems, DOCSIS 3.0 downstream video equipment, and microwave fixed wireless access hardware requiring stable component supply and long-term lifecycle support.
Supply support for MAX2051ETP+ 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 communications, computing, and industrial applications.
The MAX2051 belongs to Maxim's high-performance RF mixer product line, engineered specifically for cable infrastructure and wireless base station front-ends demanding high linearity, low noise, and integrated signal conditioning.
FAQ
What is the recommended LO drive level for optimal performance of the MAX2051ETP+?
The MAX2051ETP+ is specified for optimal linearity and spurious performance with a nominal LO drive of 0dBm, and operates across -3dBm to +3dBm. Increasing LO drive to +6dBm can improve 2RF-LO and 2LO-2RF rejection by up to 6dB, but may increase supply current and thermal load. The integrated LO buffer eliminates need for external amplification in most DOCSIS 3.0 CMTS designs.
Does the MAX2051ETP+ support both upconversion and downconversion modes?
Yes, the MAX2051ETP+ supports both upconversion (IF→RF) and downconversion (RF→IF). In downconversion mode, it achieves 7.4dB typical conversion loss and +35dBm IIP3 at fRF=1200MHz/fLO=1700MHz/fIF=500MHz. In upconversion mode, it delivers 7.5dB conversion loss and +33.4dBm IIP3 at fIF=350MHz/fLO=1600MHz/fRF=1250MHz-verified across its full frequency ranges.
How is the exposed pad (EP) of the MAX2051ETP+ used in PCB layout?
The exposed pad (EP) of the MAX2051ETP+ must be soldered to a PCB ground plane using multiple thermal vias to ensure effective heat transfer and maintain RF performance. EP is internally connected to GND. Failure to properly connect EP degrades thermal resistance (θJC = 8°C/W), increases junction temperature, and risks exceeding the +150°C absolute maximum, especially at full 130mA supply current and +85°C case temperature.
What is the function of the LOBIAS pin on the MAX2051ETP+?
The LOBIAS pin on the MAX2051ETP+ sets the bias current for the internal LO buffer amplifier. A 61.9Ω ±1% resistor must be connected between LOBIAS and VCC to achieve the specified 130mA total supply current and optimal IIP3 performance. Omitting or misvaluing this resistor causes LO buffer underbias, increasing conversion loss and degrading spurious rejection-particularly 2RF-LO and 2LO-2RF.
Is the MAX2051ETP+ RoHS-compliant and lead-free?
Yes, the MAX2051ETP+ is a lead(Pb)-free and RoHS-compliant device, as indicated by the "+" suffix in the part number. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) 3 and is qualified for reflow soldering per IPC/JEDEC J-STD-020 standards. The package uses matte tin (Sn) finish on all leads and the exposed pad.
MAX2051ETP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- RF Type:
- iDEN, WiMAX, WLL
- Frequency:
- 850MHz ~ 1.55GHz
- Number of Mixers:
- 1
- Gain:
- -
- Noise Figure:
- 7.8dB
- Secondary Attributes:
- Up/Down Converter
- Current - Supply:
- 130mA
- Voltage - Supply:
- 4.75V ~ 5.25V
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TQFN (5x5)
MAX2051ETP+ FAQ
1.How can I place an order for MAX2051ETP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2051ETP+ 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 MAX2051ETP+ reliable?
The price and inventory of MAX2051ETP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2051ETP+ is usually 5 days.
3.What payment methods are accepted for MAX2051ETP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2051ETP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2051ETP+?
MAX2051ETP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2051ETP+ 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 MAX2051ETP+?
For technical support, including MAX2051ETP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2051ETP+ requirements.
6.How does Aetrix verify that MAX2051ETP+ is sourced from the original manufacturer or authorized distributors?
All MAX2051ETP+ 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 MAX2051ETP+ meets industry standards.
7.What is the process for return or replacement of MAX2051ETP+?
All MAX2051ETP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX2051ETP+, 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 MAX2051ETP+ part is unused and in its original packaging.
Return procedure for MAX2051ETP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX2051ETP+ Tags
-
MAX2671EUT+T
Analog Devices Inc./Maxim Integrated
-
ADEX-10+
Mini-Circuits
-
ADE-2+
Mini-Circuits
-
ADE-1+
Mini-Circuits
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LT5560EDD#PBF
Analog Devices Inc.
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LT5560EDD#TRPBF
Analog Devices Inc.
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LTC5562IUC#TRPBF
Analog Devices Inc.
-
MAX2681EUT+T
Analog Devices Inc./Maxim Integrated
-
ADE-1ASK+
Mini-Circuits
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ADE-1L+
Mini-Circuits
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ADL5350ACPZ-R7
Analog Devices Inc.
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AD608ARZ-RL
Analog Devices Inc.
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