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Analog Devices Inc./Maxim Integrated MAX2051ETP+T
- Part No.:
- MAX2051ETP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- RF Mixers
- Package:
- 20-WQFN Exposed Pad
- Datasheet:
-
MAX2051ETP+T.pdf
- Description:
- IC MIXER 850MHZ-1.55GHZ 20TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
MAX2051ETP+T 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, 7.4dB conversion loss, and >77dBc spurious suppression at –14dBm RF input - enabling DOCSIS 3.0/Euro DOCSIS downstream video and CMTS applications.
For engineers reviewing the MAX2051ETP+T datasheet, MAX2051ETP+T pinout, MAX2051ETP+T application, or MAX2051ETP+T equivalent, key selection criteria include its 850–1550MHz RF range, 1200–2250MHz LO support for high-side injection, differential IF output (50MHz–1000MHz), integrated baluns, and 0dBm nominal LO drive requirement.
Technical Context
The MAX2051ETP+T implements a double-balanced active mixer core with integrated SiGe LO buffer and on-die RF/LO baluns, enabling single-ended 50Ω interfaces without external transformers. Its architecture supports both upconversion (IF→RF) and downconversion (RF→IF) modes with fRF < fLO high-side LO injection.
It features differential IF outputs (IF+/IF–) optimized for 2RF–LO and 2LO–2RF spur suppression, with typical rejection of 88dBc and 79dBc respectively at –14dBm RF input. LO bias is set via an external 61.9Ω resistor on LOBIAS to VCC, ensuring stable amplifier current across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 850MHz to 1550MHz - supports full DOCSIS downstream spectrum and Edge QAM modulation bands. |
| LO Frequency Range | 1200MHz to 2250MHz - enables high-side LO injection for wide IF coverage up to 1000MHz. |
| IF Frequency Range | 50MHz to 1000MHz differential - accommodates baseband and IF-sampling architectures with transformerless interface. |
| 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 low-level downstream signal reception. |
| Conversion Loss | 7.4dB typical - defines signal attenuation from RF to IF path; impacts system gain budget and cascaded noise figure. |
| LO Drive Level | 0dBm nominal - reduces need for external LO amplification, simplifying front-end design. |
| Supply Current | 130mA max at VCC = 5.0V - determines thermal management requirements in compact 5mm × 5mm QFN package. |
Pinout & Package
The MAX2051ETP+T is housed in a 20-pin thin QFN package (5mm × 5mm) with exposed pad (EP), rated for –40°C to +85°C case temperature. The exposed pad must be soldered to PCB ground with multiple vias for thermal dissipation and RF performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (RF) | Single-ended RF input | 50Ω matched port; requires DC-blocking capacitor due to internal balun DC short to GND. |
| 6, 8, 15 (VCC) | Power supply inputs | Three independent 4.75–5.25V supply pins; each requires local bypass capacitance per layout guidelines. |
| 7 (LOBIAS) | LO amplifier bias control | Output node for 61.9Ω ±1% resistor to VCC; sets LO buffer quiescent current. |
| 12 (LO) | Single-ended LO input | 50Ω matched port; requires DC-blocking capacitor; accepts –3dBm to +3dBm drive. |
| 16, 17 (IF+, IF–) | Differential IF output | True differential pair; enables high-rejection filtering of 2RF–LO and 2LO–2RF spurs without external balun. |
| 2–5, 9–11, 13, 14, 18–20 (GND) | Ground terminals | Mixed roles: pins 2–5/9–11/13/14 connect internally to EP; pins 18–20 are isolated and may be grounded or left floating. |
| EP (Exposed Pad) | Thermal & electrical ground | Internally tied to GND; must be soldered to PCB ground plane with ≥6 thermal vias for thermal and RF stability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF and LO baluns | Eliminates external transformers, reducing BOM count and board area while maintaining 50Ω single-ended interface integrity. |
| On-chip LO buffer | Enables low LO drive (–3dBm to +3dBm), relaxing requirements on upstream synthesizer or PLL output power. |
| Differential IF output | Provides inherent common-mode rejection and superior 2RF–LO/2LO–2RF suppression (>77dBc) without external components. |
| External current-setting resistor | 61.9Ω on LOBIAS allows precise control of LO amplifier bias current for optimized linearity vs. power trade-off. |
| High-side LO injection support | Validated operation with fLO > fRF across full 1200–2250MHz range, simplifying filter design in downstream cable systems. |
| DOCSIS 3.0/Euro DOCSIS compliance | Guaranteed spurious performance (e.g., 2RF–LO >77dBc at –14dBm) meets stringent cable head-end spectral purity requirements. |
Applications
| Video-on-Demand (VOD) Downstream | DOCSIS 3.0 Cable Head-End |
|---|---|
Use Scenario: Downconverting 1.2GHz–1.5GHz QAM carriers to 50–1000MHz IF for demodulation in VOD edge QAM modulators. IC Role / Device Role / Timing Role: High-linearity RF-to-IF mixer performing frequency translation with minimal distortion in multi-carrier environments. Use Value: +35dBm IIP3 prevents intermodulation distortion across 100+ QAM channels; 7.8dB NF preserves SNR for 256-QAM symbol recovery. | Use Scenario: Signal conditioning in Euro DOCSIS-compliant CMTS downstream paths where spectral purity and channel density are critical. IC Role / Device Role / Timing Role: Primary downconversion stage translating RF spectrum to IF for digital sampling and OFDM processing. Use Value: >77dBc 2RF–LO rejection ensures compliance with ETSI EN 300 429 spectral mask; integrated baluns reduce layout sensitivity. |
| Cable Modem Termination System (CMTS) | Fixed Wireless Access Base Station |
Use Scenario: Aggregating and downconverting multiple RF channels in high-density CMTS chassis operating over extended temperature range. IC Role / Device Role / Timing Role: Core RF front-end mixer handling simultaneous DOCSIS 3.0 channel bonding with tight phase noise constraints. Use Value: 7.4dB conversion loss minimizes cascaded noise figure impact; 130mA ICC enables thermal management in fanless 1RU enclosures. | Use Scenario: IF generation in microwave backhaul or fixed broadband wireless transceivers requiring wide IF bandwidth (up to 1GHz). IC Role / Device Role / Timing Role: Upconverter translating 350MHz IF to 1.25–1.55GHz RF band using high-side LO injection. Use Value: 7.5dB upconversion loss and 33.4dBm IIP3 maintain EVM performance in 64-QAM/256-QAM transmission; differential IF eases ADC interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF mixer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HMC608LC4TR | Higher conversion loss (9.5dB), wider RF range (1.2–2.5GHz), no integrated LO buffer - requires +13dBm LO drive. | Targeted at higher-frequency point-to-point microwave links; lacks DOCSIS-specific spurious validation. | Choose when operating above 1550MHz or needing higher RF input power handling (+27dBm P1dB). |
| ADL5365ACPZ-R7 | Lower IIP3 (+29dBm), 5.5dB conversion loss, no integrated baluns - needs external matching networks. | Optimized for general-purpose IF sampling; not characterized for DOCSIS 3.0 spurious requirements. | Prefer for cost-sensitive, lower-linearity applications where external baluns are acceptable and LO drive >0dBm is available. |
Compared with HMC608LC4TR and ADL5365ACPZ-R7, the MAX2051ETP+T uniquely combines DOCSIS-validated spurious performance, integrated baluns, and low LO drive in a thermally enhanced QFN - making it optimal for space-constrained, high-channel-count cable infrastructure designs.
Availability
MAX2051ETP+T is available at Aetrix Electronics and suitable for cable modem termination systems, video-on-demand edge QAM modulators, and fixed wireless access base stations requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX2051ETP+T 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and RF solutions for communications, industrial, and automotive markets.
The MAX2051 belongs to Maxim's high-linearity RF mixer product line, engineered specifically for demanding cable infrastructure and broadband wireless applications where spectral purity, multicarrier linearity, and thermal reliability are critical.
FAQ
What is the recommended LO drive level for optimal performance of the MAX2051ETP+T?
The MAX2051ETP+T is specified for optimal linearity and spurious performance with a nominal LO drive of 0dBm, though it operates across –3dBm to +3dBm. At 0dBm, the device achieves +35dBm IIP3 and >77dBc 2RF–LO rejection at –14dBm RF input. Increasing LO drive to +6dBm can improve spurious rejection by up to 6dB but increases supply current and thermal load. The MAX2051ETP+T integrates an LO buffer to relax drive requirements compared to passive mixers.
Does the MAX2051ETP+T support both upconversion and downconversion modes?
Yes, the MAX2051ETP+T supports both upconversion (IF→RF) and downconversion (RF→IF) modes. In downconversion, it operates with high-side LO injection (fLO > fRF) across 850–1550MHz RF and 1200–2250MHz LO ranges. In upconversion mode, it delivers 7.5dB conversion loss and +33.4dBm IIP3 at 350MHz IF, making the MAX2051ETP+T suitable for bidirectional RF front-ends in cable and wireless infrastructure.
How is the LO bias current set on the MAX2051ETP+T?
The LO bias current on the MAX2051ETP+T is set via an external 61.9Ω ±1% resistor connected between pin 7 (LOBIAS) and VCC. This resistor establishes the quiescent current for the integrated LO buffer amplifier, directly affecting LO drive capability and linearity. Deviations beyond ±1% tolerance shift bias point and may degrade IIP3 or increase conversion loss. The MAX2051ETP+T datasheet specifies this value for nominal 130mA total supply current at +5.0V.
What is the function of the exposed pad (EP) on the MAX2051ETP+T package?
The exposed pad (EP) on the MAX2051ETP+T is internally connected to GND and serves dual thermal and electrical functions. It must be soldered to a PCB ground plane using ≥6 thermal vias to achieve θJC = 8°C/W and ensure stable RF performance. Failure to properly connect EP degrades spurious rejection, increases junction temperature, and risks exceeding the +150°C absolute maximum rating. The MAX2051ETP+T thermal design relies on this pad for heat dissipation in high-power cable head-end applications.
Can the MAX2051ETP+T operate outside the specified –40°C to +85°C case temperature range?
No, the MAX2051ETP+T is only guaranteed to meet all electrical specifications over the case temperature range of –40°C to +85°C. Operation beyond this range risks parametric drift - including increased conversion loss variation (±0.5dB), reduced IIP3 (down to +33dBm at extremes), and degraded spurious rejection. Junction temperature must remain ≤+150°C, calculated as TC + (θJC × VCC × ICC). The MAX2051ETP+T is not qualified for extended temperature or automotive use without derating and validation.
MAX2051ETP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX2051ETP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX2051ETP+T 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+T reliable?
The price and inventory of MAX2051ETP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX2051ETP+T is usually 5 days.
3.What payment methods are accepted for MAX2051ETP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX2051ETP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX2051ETP+T?
MAX2051ETP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX2051ETP+T 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+T?
For technical support, including MAX2051ETP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX2051ETP+T requirements.
6.How does Aetrix verify that MAX2051ETP+T is sourced from the original manufacturer or authorized distributors?
All MAX2051ETP+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX2051ETP+T?
All MAX2051ETP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX2051ETP+T, 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+T part is unused and in its original packaging.
Return procedure for MAX2051ETP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX2051ETP+T Tags
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MAX2671EUT+T
Analog Devices Inc./Maxim Integrated
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ADEX-10+
Mini-Circuits
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ADE-2+
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ADE-1+
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LT5560EDD#TRPBF
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LTC5562IUC#TRPBF
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MAX2681EUT+T
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ADE-1ASK+
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ADE-1L+
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