Renesas DA7400-01 000OJ2

Overview

DA7400-01 000OJ2 from Dialog Semiconductor is a stereo hi-fi audio codec IC designed for configurable Bluetooth/USB-C headsets and IoT audio endpoints. It delivers 115 dB playback dynamic range, 384 kHz sampling rate support, 40 kHz audio bandwidth for Hi-Res Audio compliance, and ultra-low-power operation in a 32-ball WLCSP (3.26 mm × 1.72 mm, 0.4 mm pitch). It integrates an audio processing unit (APU), configurable filter engine, and three stereo PDM microphone inputs.

For engineers reviewing the DA7400-01 000OJ2 datasheet, DA7400-01 000OJ2 pinout, DA7400-01 000OJ2 application, or DA7400-01 000OJ2 equivalent, key selection considerations include I²S/TDM interface flexibility, asynchronous sample-rate conversion capability, programmable fractional-N PLL clocking, integrated microphone bias, and WLCSP package constraints for space-constrained earbud designs.

Technical Context

The DA7400-01 000OJ2 implements a fully configurable audio processing unit with bypassable asynchronous sample-rate converters (ASRCs), enabling independent input/output clock domains. Its filter engine supports N-stage biquad filtering per channel for equalization, sidetone, and AGC functions.

It features a 4-wire digital audio interface supporting I²S, TDM, and left-justified formats up to 32 bits per channel and 384 kHz sample rate, plus three stereo PDM inputs for low-latency digital microphone interfacing and integrated low-noise MIC bias generation.

Key Specifications

Pinout & Package

DA7400-01 000OJ2 is housed in a 32-ball Wafer-Level Chip-Scale Package (WLCSP) measuring 3.26 mm × 1.72 mm with 0.4 mm ball pitch. Pin assignments are defined per Dialog Semiconductor's DA7400 Family Datasheet Rev 1.0 (2019), Table 3 "Ball Map".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar stereo audio codec applications.

Compared with AK4493EQ and ES8388, the DA7400-01 000OJ2 uniquely combines 115 dB DR, 384 kHz support, on-chip APU, and WLCSP packaging-enabling single-chip Hi-Res audio endpoints with <5 mW typical operating power in earbud form factors.

Availability

DA7400-01 000OJ2 is available at Aetrix Electronics and suitable for wireless headsets, Hi-Res audio earbuds, IoT voice interfaces, and portable DAC adapters requiring stable component supply and long-term lifecycle support.

Supply support for DA7400-01 000OJ2 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

Dialog Semiconductor plc is a UK-based fabless semiconductor company specializing in highly integrated power management, audio, and connectivity ICs for mobile, IoT, and automotive markets.

The DA7400-01 000OJ2 belongs to Dialog's SmartBeat™ family of ultra-low-power audio codecs, engineered specifically for space- and power-constrained wearable and portable audio endpoints requiring Hi-Res Audio certification.

FAQ

What is the maximum supported sampling rate for the DA7400-01 000OJ2?

The DA7400-01 000OJ2 supports up to 384 kHz sampling rate for both playback and recording paths. This capability is verified in Dialog's DA7400 Family Datasheet Rev 1.0 (2019), Section 5.1, and enables native playback of studio-master Hi-Res Audio content without sample-rate conversion. The DA7400-01 000OJ2 achieves this using its programmable fractional-N PLL and bypassable asynchronous sample-rate converters.

Does the DA7400-01 000OJ2 include integrated headphone drivers?

Yes, the DA7400-01 000OJ2 integrates Class-G capacitor-less headphone drivers on HPOL and HPOR pins. These drivers operate from a dedicated VDDHP supply (2.7–5.5 V) and deliver >15 mW into 32 Ω loads with <0.003% THD+N. The DA7400-01 000OJ2 does not require external DC-blocking capacitors or boost converters, reducing BOM count and PCB area.

How many digital microphone inputs does the DA7400-01 000OJ2 support?

The DA7400-01 000OJ2 supports three stereo PDM inputs (six total channels), labeled DMIC1L/R, DMIC2L/R, and DMIC3L/R. Each pair accepts standard 1-bit PDM streams at up to 48 kHz, with hardware timestamping for beamforming synchronization. This capability is documented in the DA7400-01 000OJ2 pinout table and functional description section of Dialog's official datasheet.

Is the DA7400-01 000OJ2 pin-compatible with other devices in the DA7400 family?

Yes, the DA7400-01 000OJ2 is part of a pin-compatible family of codecs, including variants such as DA7400-00 and DA7400-02. All share identical 32-ball WLCSP footprint, ball map, and power/control interface definitions. This allows hardware reuse across different feature sets (e.g., varying APU configurations or memory options) without PCB redesign. The DA7400-01 000OJ2 maintains full mechanical and electrical compatibility within this family.

What development tools are available for the DA7400-01 000OJ2?

Dialog provides the SmartCanvas™ GUI for register configuration and profile script loading, an open-source HAL driver for system integration, and the DA7400 development kit. That kit includes a motherboard with DA14195 co-processor and a daughterboard with the DA7400-01 000OJ2 in WLCSP. These tools are documented in Dialog Application Note AN-DA7400-DEVKIT-1.0 and supported via Dialog's audio labs in Europe and Southeast Asia.