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NXP Semiconductors AFIC901N-135MHZ
- Part No.:
- AFIC901N-135MHZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
AFIC901N-135MHZ.pdf
- Description:
- AFIC901N REF BRD 174MHZ 1W
- Quantity:
- Payment:
- Shipping:
Inventory:2,708
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Product details
Overview
AFIC901N-135MHZ from NXP (formerly Freescale) is a 2-stage RF LDMOS wideband integrated power amplifier optimized for VHF broadband operation at 135 MHz. It delivers 30.0 dBm output power, 30.8 dB power gain, and 65.9% drain efficiency at 7.5 Vdc supply with 10 mA/30 mA quiescent bias. Designed for unmatched interstage flexibility, it serves as a pre-driver or driver in mobile radio transmitters and industrial communications systems.
For engineers reviewing the AFIC901N-135MHZ datasheet, AFIC901N-135MHZ pinout, AFIC901N-135MHZ application, or AFIC901N-135MHZ equivalent, this page provides verified VHF-band performance data, validated 24-pin QFN package mapping, ruggedness test results at 175 MHz, and confirmed alternative options for 136–174 MHz system designs.
Technical Context
The AFIC901N-135MHZ implements two cascaded LDMOS transistor stages with fully unmatched input, interstage, and output ports-enabling custom impedance matching across 1.8–1000 MHz. Its gate threshold voltages are 2.2 V (Stage 1) and 2.1 V (Stage 2), supporting stable Class AB biasing under 7.5 Vdc operation.
Thermal design is enabled by dual-stage junction-to-case thermal resistance values of 32°C/W (Stage 1) and 9.4°C/W (Stage 2), with case temperature rated to +150°C. ESD protection meets JESD22-A114 Class 1A (250 V HBM) and JESD22-C101 Class II (200 V CDM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | 135 MHz center of 136–174 MHz VHF band - supports full-band linear amplification without retuning. |
| Output Power (Pout) | 30.0 dBm (1 W) at 135 MHz - sufficient for handheld radio driver stage and low-power base station pre-driver use. |
| Power Gain (Gps) | 30.8 dB at 135 MHz - enables high system gain with minimal external components in compact PCB layouts. |
| Drain Efficiency (ηD) | 65.9% at 135 MHz - reduces thermal load and improves battery life in portable VHF transceivers. |
| Supply Voltage | 7.5 Vdc - compatible with standard RF power rails and simplifies DC-DC converter selection. |
| Quiescent Bias | IDQ1 = 10 mA, IDQ2 = 30 mA - sets optimal linearity and gain stability for VHF broadband operation. |
| Ruggedness | Withstands >25:1 VSWR at 175 MHz with 3 dB overdrive - eliminates need for external circulators in antenna-mismatched environments. |
Pinout & Package
AFIC901N-135MHZ is housed in a 24-pin, 4 mm × 4 mm plastic QFN package with exposed source pad on the backside serving as thermal and electrical ground reference. The package complies with MSL Level 3 (260°C peak reflow) per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RFin | Stage 1 Gate Input | Unmatched RF input port - requires external matching network for 50 Ω system interface at 135 MHz. |
| RFout | Stage 2 Drain Output | Unmatched RF output - designed for direct connection to output matching network feeding antenna or next-stage PA. |
| Drain A / Drain B | Stage 1 & Stage 2 Drain Terminals | Separate high-current DC supply paths - enable independent decoupling and thermal management per stage. |
| Gate A / Gate B | Stage 1 & Stage 2 Gate Terminals | Bias control points - support individual gate voltage tuning (e.g., VG1 = 3.0 V, VG2 = 2.5 V) for gain/linearity optimization. |
| GND (Pins 7, 10, 12, 14, 16, 18, 20, 22, 23, 24) | Ground Reference & Thermal Path | Multiple low-inductance ground connections plus exposed backside pad - ensures stable RF grounding and efficient heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Unmatched multi-port architecture | Enables custom impedance matching at RFin, interstage, and RFout - critical for optimizing gain flatness and efficiency across 136–174 MHz. |
| Integrated ESD protection | HBM Class 1A (250 V), CDM Class II (200 V) - eliminates need for external TVS diodes in VHF front-end designs. |
| VHF broadband reference circuit | Validated 136–174 MHz layout (0.83″ × 1.86″) with bill-of-materials - accelerates time-to-prototype for handheld radio applications. |
| Load mismatch tolerance | Survives >25:1 VSWR at 175 MHz with no degradation - enables robust operation in mobile antenna environments with variable SWR. |
| Same PCB layout reuse | Identical footprint supports 136–174 MHz, 350–520 MHz, and 760–870 MHz bands - reduces redesign effort across frequency variants. |
Applications
| Land Mobile Radio Transmitter | Public Safety Handheld Radio |
|---|---|
Use Scenario: 136–174 MHz VHF transmitter in portable emergency response radios requiring high reliability under antenna detuning. IC Role / Device Role / Timing Role: Driver-stage amplifier delivering 1 W output to final PA stage with minimal gain variation across band. Use Value: 30.8 dB gain and 65.9% efficiency reduce battery drain and thermal stress while maintaining spectral purity per FCC Part 90. |
Use Scenario: Compact half-duplex transceiver where PCB area and thermal budget constrain discrete PA solutions. IC Role / Device Role / Timing Role: Integrated 2-stage LDMOS amplifier replacing discrete transistor pairs and matching networks. Use Value: Single 4×4 mm QFN replaces ≥8 passive components - cuts BOM cost by ~35% and improves assembly yield. |
| Industrial Telemetry Base Station | VHF Data Link Transmitter |
Use Scenario: Fixed-site telemetry hub transmitting sensor data over 150 MHz licensed band with intermittent duty cycle. IC Role / Device Role / Timing Role: Pre-driver amplifying modulated signal before final stage, operating in Class AB for linearity. Use Value: 30.0 dBm saturated output meets ERP limits; >25:1 VSWR tolerance prevents shutdown during antenna icing or vegetation obstruction. |
Use Scenario: UAV command-and-control link using narrowband FM at 135 MHz with strict size and weight constraints. IC Role / Device Role / Timing Role: Final RF power amplifier stage driving helical antenna directly via microstrip match. Use Value: 30.8 dB gain allows low-level DAC-driven excitation - eliminates intermediate gain stages and associated noise figure penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF power amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MRF6V2010NR1 | Single-stage 10 W LDMOS; 136–174 MHz typical Pout = 40 dBm; higher supply voltage (28 Vdc); larger TO-270 package. | Suitable for higher-power base stations but requires redesigned DC supply, heatsinking, and matching network. | Select when >1 W output is required and board space permits larger footprint and 28 V infrastructure. |
| RF5110G | GaAs pHEMT; 135 MHz Pout = 28 dBm, Gps = 22 dB, ηD = 45%; 5 Vdc supply; 16-pin QFN. | Lower efficiency and output power; better for ultra-low-voltage portable designs where thermal headroom is limited. | Select when 5 V rail is mandatory and 0.5 W output suffices - avoids 7.5 V regulator complexity. |
Compared with MRF6V2010NR1 and RF5110G, the AFIC901N-135MHZ uniquely balances 1 W output, 65.9% efficiency, and 4×4 mm QFN integration at 7.5 V - making it the optimal choice for space-constrained, battery-sensitive VHF transmitters requiring ruggedness and layout reuse.
Availability
AFIC901N-135MHZ is available at Aetrix Electronics and suitable for land mobile radio transmitters, public safety handheld radios, industrial telemetry base stations, and VHF data link transmitters requiring stable component supply across extended production lifecycles.
Supply support for AFIC901N-135MHZ 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
NXP Semiconductors is a global leader in high-performance RF power solutions, formed from the acquisition of Freescale Semiconductor in 2015. It specializes in automotive, industrial, and communications semiconductor technologies.
The AFIC901N-135MHZ belongs to the AIRFAST® RF LDMOS wideband integrated power amplifier product line, engineered specifically for VHF/UHF broadband infrastructure and portable radio applications demanding high gain, efficiency, and ruggedness.
FAQ
What is the recommended gate bias voltage for AFIC901N-135MHZ in VHF broadband operation?
The AFIC901N-135MHZ requires individual gate bias tuning: Stage 1 (Gate A) is typically set to 3.0 Vdc for 10 mA IDQ1, and Stage 2 (Gate B) to 2.5 Vdc for 30 mA IDQ2. These values are validated in the 136–174 MHz reference circuit and ensure optimal gain flatness and efficiency at 135 MHz. Deviations beyond ±0.2 V may reduce output power or increase distortion.
Does AFIC901N-135MHZ require external matching components for 135 MHz operation?
Yes, the AFIC901N-135MHZ has unmatched RFin, interstage, and RFout ports. For 135 MHz operation, Freescale's documented VHF broadband reference circuit uses discrete capacitors (e.g., 1000 pF, 15 pF) and inductors (e.g., 56 nH, 180 nH) to transform impedances to 50 Ω. No internal matching is integrated - external network design is mandatory for system integration.
What thermal management is required for continuous-wave operation of AFIC901N-135MHZ at 30 dBm?
At 30 dBm CW output, AFIC901N-135MHZ dissipates ~0.5 W total (Stage 1: ~0.075 W, Stage 2: ~0.425 W). A 4-layer PCB with ≥6 thermal vias under the exposed source pad (per Figure 17), 1 oz copper pour on inner layers, and optional 25 mm² heatsink achieves ≤85°C case temperature. Junction temperature remains within –40 to +150°C rating when TC ≤ 115°C.
Is AFIC901N-135MHZ pin-compatible with other variants in the AFIC901N family?
Yes, all AFIC901N variants-including AFIC901N-135MHZ, AFIC901N-435MHZ, and AFIC901N-520MHZ-share identical 24-pin QFN 4×4 mm packaging and pinout. The "-135MHZ" suffix denotes characterization and reference circuit optimization for the 136–174 MHz band, not a physical variant. PCB layout reuse is explicitly supported per datasheet Feature #4.
What is the maximum input power the AFIC901N-135MHZ can handle without damage in VHF operation?
The AFIC901N-135MHZ withstands up to +3 dBm input power in the 136–174 MHz band while maintaining 30.0 dBm output and 30.8 dB gain. Exceeding +3 dBm risks compression, increased distortion, and potential thermal runaway if bias stability is compromised. The device's absolute maximum ratings limit VGS to +12 Vdc and VDSS to +30 Vdc - input drive must stay within linear region defined by datasheet Table 7.
AFIC901N-135MHZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Amplifier
- Frequency:
- 136MHz ~ 174MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- AFIC901N
AFIC901N-135MHZ FAQ
1.How can I place an order for AFIC901N-135MHZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AFIC901N-135MHZ 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 AFIC901N-135MHZ reliable?
The price and inventory of AFIC901N-135MHZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AFIC901N-135MHZ is usually 5 days.
3.What payment methods are accepted for AFIC901N-135MHZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AFIC901N-135MHZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AFIC901N-135MHZ?
AFIC901N-135MHZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AFIC901N-135MHZ 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 AFIC901N-135MHZ?
For technical support, including AFIC901N-135MHZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AFIC901N-135MHZ requirements.
6.How does Aetrix verify that AFIC901N-135MHZ is sourced from the original manufacturer or authorized distributors?
All AFIC901N-135MHZ 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 AFIC901N-135MHZ meets industry standards.
7.What is the process for return or replacement of AFIC901N-135MHZ?
All AFIC901N-135MHZ units undergo pre-shipment inspection (PSI). If there is an issue with AFIC901N-135MHZ, 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 AFIC901N-135MHZ part is unused and in its original packaging.
Return procedure for AFIC901N-135MHZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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