Renesas RAA3064003GFP#BA0

Overview

RAA3064003GFP#BA0 from Renesas Electronics is a resolver-to-digital converter IC designed for high-precision motor position feedback in industrial servo drives and robotics. It interfaces with single-phase excitation/two-phase output resolvers, supports selectable excitation frequencies (5/10/20 kHz), delivers 16,000 pulses/rotation angle resolution at 5 kHz excitation, operates from a single 4.5–5.5 V supply, and features integrated shunt current amplifiers (gain ×10 or ×25) for motor phase current sensing.

For engineers reviewing the RAA3064003GFP#BA0 datasheet, RAA3064003GFP#BA0 pinout, RAA3064003GFP#BA0 application, or RAA3064003GFP#BA0 equivalent, this device is selected for non-automotive motor control systems requiring robust resolver signal conditioning, on-chip error correction (residual carrier, magnetic noise), thermal fault detection, and SPI-based host MCU interfacing up to 1 MHz.

Technical Context

The RAA3064003GFP#BA0 implements a dedicated analog front-end for resolver signals, including dual differential amplifiers with programmable gain (2/4/8/16.5×) for SIN/COS inputs, analog bandpass filtering to suppress PWM and magnetic noise, and phase-adjustment circuits to compensate for resolver-induced phase shifts. Its internal exciter amplifier delivers ±35 mA AC excitation current at 5/10/20 kHz.

Angle computation uses synchronous demodulation and digital correction of residual carrier and amplitude/phase mismatches. The device outputs a rectangular angle signal whose phase delay relative to the excitation clock encodes electrical angle, intended for timing-based capture by an external MCU timer-no internal ADC or digital angle register is present.

Key Specifications

Pinout & Package

RAA3064003GFP#BA0 is housed in a 48-pin plastic LQFP package (PLQP0048KB-B), measuring 7 mm × 7 mm with 0.5 mm pitch, surface-mount compatible, and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar resolver-to-digital conversion applications.

Compared with AD2S1210BSTZ and AMC1303M2510, the RAA3064003GFP#BA0 uniquely integrates excitation, resolver signal conditioning, error correction, and dual shunt amplification in one 48-pin LQFP-reducing component count, eliminating external filter design, and enabling direct angle pulse output without FPGA processing.

Availability

RAA3064003GFP#BA0 is available at Aetrix Electronics and suitable for industrial servo drives, robot joint actuators, electric actuators, and precision linear stages requiring stable component supply across extended temperature operation and long production lifecycles.

Supply support for RAA3064003GFP#BA0 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

Renesas Electronics Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog power devices, and application-specific ICs for industrial, infrastructure, and IoT markets.

The RAA3064003GFP#BA0 belongs to Renesas' resolver-to-digital converter product line, engineered specifically for high-accuracy motor position feedback in non-automotive industrial motion control systems where reliability, noise immunity, and integrated signal conditioning are critical.

FAQ

What is the maximum excitation frequency supported by the RAA3064003GFP#BA0?

The RAA3064003GFP#BA0 supports three fixed excitation frequencies: 5 kHz, 10 kHz, and 20 kHz. These are selected via internal register configuration and determine the resolver drive rate, signal bandwidth, and achievable angle resolution. At 20 kHz, the device maintains full functionality but reduces maximum angle resolution compared to lower frequencies due to timing constraints in the internal demodulation path.

Does the RAA3064003GFP#BA0 include an internal ADC or digital angle register?

No, the RAA3064003GFP#BA0 does not contain an internal ADC or store digital angle values in registers. Instead, it outputs synchronized rectangular AOUT and BOUT signals whose phase delay relative to the excitation clock encodes the electrical angle. The host MCU must measure this phase difference using a high-resolution timer-typically an 80 MHz timer for 16,000 pulses/rotation resolution at 5 kHz excitation.

How does the RAA3064003GFP#BA0 handle resolver sensor disconnection?

The RAA3064003GFP#BA0 continuously monitors SIN+/SIN− and COS+/COS− input levels. If either differential pair falls below a defined threshold indicating open-circuit or severe signal loss, it asserts the ALM# pin and sets the DISCON bit in the ALMST register. This allows immediate host MCU response-such as disabling PWM output-without requiring external comparators or polling logic.

Can the RAA3064003GFP#BA0 operate with both transformer-type and current-detection type resolvers?

Yes, the RAA3064003GFP#BA0 is explicitly designed to interface with both transformer-type and current-detection type single-phase excitation/two-phase output resolvers. Its differential input structure, programmable gain (2× to 16.5×), and internal biasing accommodate the differing output impedances and signal levels of both resolver topologies without external component changes.

What is the purpose of the dual shunt current amplifiers in the RAA3064003GFP#BA0?

The dual shunt current amplifiers in the RAA3064003GFP#BA0 provide dedicated, matched differential amplification for motor phase current sensing-each with selectable gain of ×10 or ×25. They share the same process and thermal environment as the resolver signal path, enabling tightly synchronized current and position sampling critical for advanced field-oriented control (FOC) algorithms in industrial servo systems.