Qorvo RFXF0010SR
- Part No.:
- RFXF0010SR
- Manufacturer:
- Qorvo
- Category:
- Balun
- Package:
- 4-SMD, No Lead
- Datasheet:
-
RFXF0010SR.pdf
- Description:
- 45 TO 1200MHZ 1:1 TRANSFORMER
- Quantity:
- Payment:

- Shipping:

Inventory:1,290
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Product details
Overview
RFXF0010SR from RF Micro Devices is a 1:1 surface-mount RF transformer optimized for unbalanced-to-balanced signal conversion in broadband RF systems, operating from 45 MHz to 1200 MHz with 75 Ω characteristic impedance, ≤1.3 dB insertion loss (typ. 1.1 dB), and 180° nominal phase difference across its frequency range - deployed in CATV distribution amplifiers and wireless infrastructure front-ends.
For engineers reviewing the RFXF0010SR datasheet, pinout, applications, or equivalent options, key selection criteria include its tertiary balance winding architecture, amplitude/phase balance performance across three frequency bands, RoHS-compliant SP5 package, and verified operation under 2 W RF power at -40°C to +100°C ambient.
Technical Context
The RFXF0010SR implements a transmission-line-based 1:1 impedance ratio transformer with tertiary balance winding to support differential signaling, delivering 180° nominal phase shift between secondary outputs while maintaining tight amplitude balance (≤0.5 dB typ. up to 600 MHz) and low insertion loss across 45–1200 MHz.
Its unbalanced-to-balanced topology enables single-ended driver interfacing to balanced loads such as mixers or ADC inputs, with input return loss ≥14 dB (45–100 MHz), ≥18 dB (100–600 MHz), and ≥13 dB (600–1200 MHz), all measured at 25°C with 75 Ω system reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 45 MHz to 1200 MHz - supports full CATV spectrum and sub-1.2 GHz wireless bands including ISM, LTE, and DVB-T. |
| Insertion Loss | 0.8–1.3 dB (typ.) - ensures minimal signal attenuation in cascaded RF stages without requiring gain compensation. |
| Amplitude Balance | 0.2–1.1 dB (max) - maintains matched output amplitudes critical for I/Q signal integrity in direct-conversion receivers. |
| Phase Balance | 0.8–6.0° (max) - preserves 180° differential timing alignment required for balanced mixer LO drive and ADC sampling. |
| Impedance Ratio | 1:1 - enables direct replacement of legacy 75 Ω unbalanced-to-balanced transformers without impedance-matching networks. |
| RF Power Rating | 2 W - supports continuous operation in high-level CATV line drivers and wireless PA output coupling paths. |
| Operating Temp | -40°C to +100°C - qualified for outdoor broadband node enclosures and industrial-grade wireless baseband modules. |
Pinout & Package
Package: SP5 - industry-standard 4-pin surface-mount footprint (0.120" × 0.098", 3.05 mm × 2.49 mm), lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - PRIMARY DOT | Input (Port 1) | Unbalanced RF input terminal; dot marking indicates phase reference for polarity-sensitive applications. |
| 2 - PRIMARY | Ground | Primary-side ground reference; connects to PCB ground plane to minimize common-mode noise coupling. |
| 3 - SECONDARY DOT | Output (Port 3) | First balanced output; dot-marked terminal defines 0° reference phase relative to primary input. |
| 4 - SECONDARY | Output (Port 2) | Second balanced output; provides 180° phase-shifted signal relative to Port 3 for true differential operation. |
Key Features
| Feature | Design Value |
|---|---|
| Tertiary balance winding | Enables precise 180° phase splitting and suppresses common-mode noise in differential receiver front-ends. |
| 75 Ω characteristic impedance | Direct interface compatibility with CATV coaxial infrastructure and broadcast RF test equipment. |
| RoHS-compliant SP5 package | Meets EU Directive 2011/65/EU; supports automated SMT assembly without lead-free reflow process changes. |
| Low insertion loss (≤1.3 dB) | Reduces thermal load and preserves SNR in multi-stage RF chains used in cable headend amplifiers. |
| Wide temperature operation (-40°C to +100°C) | Validated for deployment in uncontrolled-environment nodes like street-side fiber-to-coax hubs. |
Applications
| CATV Distribution Amplifier | Wireless Infrastructure Transceiver |
|---|---|
Use Scenario: Signal splitting and level restoration in 75 Ω HFC network nodes feeding multiple downstream ports. IC Role / Device Role / Timing Role: Unbalanced-to-balanced transformer providing isolation and phase inversion for dual-output amplifier stages. Use Value: Maintains <1.3 dB insertion loss and >14 dB return loss across 54–1002 MHz DOCSIS spectrum, minimizing cascade distortion. | Use Scenario: LO signal conditioning in FDD/TDD transceivers for cellular small cells operating below 1.2 GHz. IC Role / Device Role / Timing Role: Balanced LO driver for quadrature demodulators requiring matched amplitude and 180° phase alignment. Use Value: Delivers ≤0.4 dB amplitude balance and ≤3.4° phase error from 100–600 MHz, enabling <−45 dBc image rejection. |
| Broadband Test Equipment Interface | Digital TV Tuner Front-End |
Use Scenario: Impedance matching and mode conversion between 50 Ω lab instruments and 75 Ω DUTs during RF characterization. IC Role / Device Role / Timing Role: Passive balun enabling accurate S-parameter measurement of 75 Ω components on 50 Ω VNAs. Use Value: Provides stable 75 Ω port match with >13 dB return loss up to 1200 MHz, reducing calibration uncertainty. | Use Scenario: IF signal coupling from tuner IC to analog baseband processor in ATSC/DVB-C set-top boxes. IC Role / Device Role / Timing Role: Differential driver for 75 Ω IF path, rejecting common-mode noise induced by digital subsystems. Use Value: Achieves ≤0.5 dB amplitude balance and ≤6.0° phase error across 45–1200 MHz, preserving EVM in QAM-256 signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unbalanced-to-balanced RF transformer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Mini-Circuits TC1-1-13M+ | 50 Ω impedance, wider bandwidth (0.4–1300 MHz), higher insertion loss (1.6 dB typ.), no tertiary winding. | Suitable for 50 Ω lab/test setups but requires external matching for 75 Ω CATV use. | Select when 50 Ω system integration or DC-coupled operation is required; not drop-in for RFXF0010SR's 75 Ω CATV role. |
| TDK HHM1595A1 | 75 Ω, smaller SP4 package (2.0 × 1.2 mm), narrower bandwidth (50–860 MHz), higher phase error (>8° above 600 MHz). | Targeted at compact DTV tuners; insufficient for full 1200 MHz CATV spectrum. | Choose for space-constrained consumer DTV designs where 860 MHz upper limit is acceptable. |
Compared with TC1-1-13M+ and HHM1595A1, the RFXF0010SR uniquely delivers 75 Ω impedance, 1200 MHz bandwidth, and tertiary winding–enabled phase accuracy within the SP5 footprint - making it the only option validated for full-spectrum CATV node deployment without external tuning.
Availability
RFXF0010SR is available at Aetrix Electronics and suitable for CATV distribution amplifiers, wireless infrastructure transceivers, broadband test equipment interfaces, and digital TV tuner front-ends requiring stable component supply and RoHS-compliant SMT packaging.
Supply support for RFXF0010SR 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
RF Micro Devices (now part of Qorvo) specialized in high-performance RF semiconductors for wireless infrastructure, broadband, and defense applications before its 2015 acquisition.
The RFXF0010SR belongs to RFMD's passive RF component family designed specifically for impedance transformation and mode conversion in 75 Ω broadband communication systems - emphasizing reliability, thermal stability, and SMT manufacturability.
FAQ
What is the impedance ratio and characteristic impedance of the RFXF0010SR?
The RFXF0010SR has a 1:1 impedance ratio and a 75 Ω characteristic impedance, enabling direct integration into CATV and broadcast RF systems without external matching networks. This specification is confirmed in the DS140228 datasheet under "Nominal Operating Parameters" and verified across its 45–1200 MHz operating band. The RFXF0010SR maintains this impedance match with >13 dB input return loss up to 1200 MHz.
Does the RFXF0010SR support differential signaling with true 180° phase shift?
Yes, the RFXF0010SR delivers a nominal 180° phase difference between its secondary outputs (Pin 3 and Pin 4), with phase balance specified from 0.8° to 6.0° depending on frequency band. Its tertiary balance winding architecture ensures consistent phase alignment - critical for mixer LO drive and ADC sampling in the RFXF0010SR's target applications.
What is the maximum RF power rating and thermal operating range for the RFXF0010SR?
The RFXF0010SR is rated for 2 W RF power and operates from -40°C to +100°C, as defined in its Absolute Maximum Ratings table. This makes the RFXF0010SR suitable for high-reliability deployments in outdoor broadband nodes and wireless base station front-ends where ambient temperatures exceed standard commercial limits.
Is the RFXF0010SR RoHS compliant and what package does it use?
Yes, the RFXF0010SR is RoHS compliant per EU Directive 2011/65/EU and uses the SP5 surface-mount package - a standardized 4-pin footprint measuring 0.120" × 0.098" (3.05 mm × 2.49 mm). The SP5 package supports automated pick-and-place assembly and lead-free reflow profiles without derating.
How does the RFXF0010SR's amplitude balance performance vary across frequency bands?
The RFXF0010SR's amplitude balance is specified as 0.2–0.5 dB (typ.) from 45–100 MHz, 0.2–0.4 dB (typ.) from 100–600 MHz, and 0.8–1.1 dB (max) from 600–1200 MHz. This graded performance reflects optimized core material behavior and ensures usable I/Q signal fidelity across the full CATV and wireless bands supported by the RFXF0010SR.
RFXF0010SR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Qorvo
- Series:
- -
- Package/Case:
- 4-SMD, No Lead
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Frequency Range:
- 45MHz ~ 1.2GHz
- Impedance - Unbalanced/Balanced:
- 1:1
- Phase Difference:
- 180°
- Insertion Loss (Max):
- 1.3dB
- Return Loss (Min):
- 13dB
- Mounting Type:
- Surface Mount
RFXF0010SR FAQ
1.How can I place an order for RFXF0010SR through Aetrix?
Please submit a Request for Quotation (RFQ) for RFXF0010SR 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 RFXF0010SR reliable?
The price and inventory of RFXF0010SR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RFXF0010SR is usually 5 days.
3.What payment methods are accepted for RFXF0010SR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RFXF0010SR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RFXF0010SR?
RFXF0010SR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RFXF0010SR 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 RFXF0010SR?
For technical support, including RFXF0010SR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RFXF0010SR requirements.
6.How does Aetrix verify that RFXF0010SR is sourced from the original manufacturer or authorized distributors?
All RFXF0010SR 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 RFXF0010SR meets industry standards.
7.What is the process for return or replacement of RFXF0010SR?
All RFXF0010SR units undergo pre-shipment inspection (PSI). If there is an issue with RFXF0010SR, 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 RFXF0010SR part is unused and in its original packaging.
Return procedure for RFXF0010SR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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