Product Overview

UDA1334ATSN2,118 is a high-performance low-power audio DAC with an integrated PLL (Phase-Locked Loop) module, developed by Philips Semiconductors. Based on bitstream conversion technology, it is specifically designed for low-voltage, low-power portable digital audio devices. This product supports two digital interface formats: I2S-bus and LSB-justified, covering a wide sampling frequency range of 16kHz~100kHz. No additional analog post-filtering is required, and it delivers high linearity and wide dynamic range audio output. It is a cost-effective audio conversion solution in the UDA1334ATSN2,118 series, ideal for scenarios demanding high audio quality and long battery life.

Key Features

• Wide Voltage & Low Power Design：Supports 2.4V~3.6V wide supply voltage. In audio mode, analog supply current is only 3.5mA, digital supply current is 2.5mA, and total power consumption is as low as 18mW, significantly extending the battery life of portable devices.
• Dual PLL Operating Modes：Integrated low-jitter PLL supports "audio mode" (regenerates internal clock from WS signal) and "video mode" (generates 12.228MHz/18.432MHz clock from 27MHz input). No external system clock is needed, simplifying circuit design.
• Multi-Format Interface Compatibility：Adapts to I2S-bus and LSB-justified (16/20/24-bit) digital audio formats. The maximum BCK frequency supports 64×WS frequency, meeting the interface requirements of different audio decoding chips.
• High-Fidelity Audio Performance：At 44.1kHz sampling frequency, Total Harmonic Distortion plus Noise (THD+N) is as low as -90dB, Signal-to-Noise Ratio (SNR) reaches 100dB, and channel separation is 100dB, restoring delicate sound quality.
• Small Package for Easy Integration：Adopts SSOP16 (SOT369-1) package with a body width of only 4.4mm, occupying little PCB space, suitable for the compact layout of portable devices.

Technical Specifications

Typical Applications

• Portable MP3/Digital Audio Players：The low power consumption (18mW) and wide voltage adaptation (2.4-3.6V) of UDA1334ATSN2,118 can match the lithium battery power supply requirements, extending the player's battery life. It supports 24-bit LSB-justified format, and with 100dB SNR, it restores high-definition audio and enhances the user's listening experience.
• Portable Audio Recorders：In audio mode, the product can regenerate the clock only through the WS signal without an external system clock, simplifying the circuit design of the recorder. The wide sampling frequency range of 16kHz~100kHz covers the recording needs from voice to high-definition audio, and -90dB THD+N ensures no distortion of the recorded signal.
• Mobile Device Audio Modules：Suitable for external audio expansion modules of smartphones and tablets, the SSOP16 small package can be embedded in the compact module layout. It is compatible with the I2S interface, which can seamlessly connect to the audio output of mainstream processors, and the 900mV RMS output voltage can directly drive the line output without additional amplification.
• Portable Navigation Devices (PND)：PND has strict requirements on power consumption and stability. In video mode, UDA1334ATSN2,118 can use the device's built-in 27MHz clock to generate audio clock, reducing external components. The high channel separation (100dB) ensures clear separation of navigation voice and background music to avoid interference.
• Portable Bluetooth Speakers：Supports low-voltage power supply, adapting to the lithium battery solution of Bluetooth speakers. It integrates a digital de-emphasis function (44.1kHz sampling) to optimize the audio high-frequency response. With a low-jitter PLL, it reduces audio distortion during Bluetooth transmission and improves the sound quality of the speaker.

Why Choose UDA1334ATSN2,118 ?

• Integrated PLL Reduces Cost & Improves Efficiency：Built-in low-jitter PLL eliminates the need for an additional clock chip. Two operating modes adapt to different scenarios, reducing the number of PCB components and lowering solution costs and design complexity.
• Low Power for Long Battery Life：The total power consumption in audio mode is only 18mW, which is more than 20% lower than similar products. It can extend the battery life of portable devices by 3-5 hours and improve user experience.
• Strong Compatibility for Multiple Scenarios：Covers a sampling frequency of 16kHz~100kHz and supports I2S/LSB-justified multi-formats, adapting to various needs from voice devices to high-definition audio devices, with a wide range of applications.
• High-Fidelity Sound Quality Guarantee：The performance indicators of 100dB SNR and -90dB THD+N reach the level of professional audio equipment, which can meet users' needs for high-quality sound and enhance the competitiveness of end products.
• Mature, Stable & Easy to Mass Produce：As a mature product of Philips Semiconductors, UDA1334ATSN2,118 has undergone large-scale mass production verification. The operating temperature range is -40°C~+85°C, adapting to complex environments with high mass production yield.

SUNTOP COMPANY INTRODUCTION

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