Renesas D13002F12V

Overview

D13002F12V from Micrel is a monolithic UHF ASK transmitter IC operating in the 800–1000 MHz band, delivering –3 dBm EIRP output power with automatic antenna tuning and 115 kbps data rate support. It functions as a "data-in, antenna-out" RF transmitter for battery-powered remote control systems, requiring only a single external crystal and minimal passive components.

For engineers reviewing the D13002F12V datasheet, D13002F12V pinout, D13002F12V application, or D13002F12V equivalent, key selection considerations include its integrated varactor-based antenna alignment, low standby current (<1 µA), ASK/OOK modulation compatibility, and SOIC-8 packaging for compact PCB integration in cost-sensitive wireless links.

Technical Context

The D13002F12V implements a fully integrated UHF synthesizer with quadrature I/Q outputs: the in-phase (I) signal drives the power amplifier, while the quadrature (Q) signal feeds a phase detector for closed-loop antenna tuning. Its internal varactor capacitance (2.6–3.3 pF range) dynamically compensates for antenna impedance drift across temperature and supply voltage.

Transmit frequency is derived from a reference oscillator input (REFOSC) at f_TX/64 - e.g., 13.5625 MHz for 868 MHz operation - and supports crystal or AC-coupled clock inputs. Calibration occurs at power-up or after STBY exit, requiring ≥20 ms before first valid MARK transmission.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (Small Outline Integrated Circuit), 150 mil width, JEDEC MS-012AC compliant. RoHS-compliant lead finish, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar UHF ASK transmitter applications.

Compared with Si4010 and NB3N502, the D13002F12V delivers lowest system-level cost through monolithic integration and zero-tuning operation, making it ideal for high-volume, fixed-function remotes where firmware independence and production scalability are critical.

Availability

D13002F12V is available at Aetrix Electronics and suitable for remote keyless entry systems, garage door openers, wireless lighting controls, and industrial sensor telemetry requiring stable component supply and long-term lifecycle assurance.

Supply support for D13002F12V 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

Micrel, Inc. was a U.S.-based semiconductor company specializing in analog, power management, and RF solutions before its acquisition by Microchip Technology in 2015. Known for high-reliability, cost-optimized ICs.

The D13002F12V belongs to Micrel's QwikRadio™ family - engineered specifically for ultra-low-cost, high-volume UHF remote control transmitters with minimal external components and zero RF tuning.

FAQ

What is the operating frequency range supported by the D13002F12V?

The D13002F12V operates across 800–1000 MHz, covering major unlicensed UHF bands including 868 MHz (Europe) and 915 MHz (North America). Its reference oscillator input accepts frequencies such as 13.5625 MHz (for 868 MHz operation) divided by 64 internally, enabling precise carrier synthesis without external PLL components. The D13002F12V maintains stable output power and modulation integrity across this full range under specified supply and temperature conditions.

Does the D13002F12V require external antenna tuning components?

No, the D13002F12V does not require manual antenna tuning. It incorporates an internal differential varactor and phase detection circuit that automatically aligns the antenna impedance to the transmit frequency in real time. This eliminates trimmer capacitors, inductors, or iterative RF testing during manufacturing. The D13002F12V achieves this using only a single external crystal or clock source and two RF output pins (ANTP/ANTM) connected directly to a balanced antenna or SAW filter.

What is the maximum data rate supported by the D13002F12V in ASK mode?

The D13002F12V supports ASK data rates up to 115 kbps with a 50% duty cycle modulating signal. This capability enables efficient transmission of multi-byte commands - such as encrypted RKE frames or multi-function HVAC control packets - within sub-100 µs bursts. The D13002F12V maintains clean envelope rise/fall times and ≥45 dBc extinction ratio across this full data rate range, ensuring reliable demodulation by standard super-regenerative and super-heterodyne receivers.

How does the D13002F12V manage power consumption in battery-operated devices?

The D13002F12V draws less than 1 µA in standby mode (STBY = VSS), enabling multi-year operation on coin-cell batteries. During active transmission, its MARK supply current is 26.5 mA typical at 868 MHz (VDD = 5 V), scaling with PC pin voltage to maintain constant –3 dBm EIRP as battery voltage declines. The D13002F12V's internal power amplifier bias control and automatic calibration ensure consistent RF performance without external voltage regulation or dynamic current adjustment circuitry.

Is the D13002F12V pin-compatible with other Micrel QwikRadio™ transmitters?

The D13002F12V shares the same 8-pin SOIC package and core pinout (PC, VDD, VSS, REFOSC, STBY, ANTM, ANTP, ASK) as the MICRF103BM, confirming direct physical and functional compatibility. Both devices use identical reference oscillator division (÷64), ASK input thresholds, and standby control logic. The D13002F12V is a rebranded variant of the MICRF103 family optimized for specific frequency bands and production lots, retaining full schematic and layout interchangeability with MICRF103BM designs.