ZL50117GAG

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The ZL50117GAG is an integrated digital direct conversion architecture with a high precision (2.5ppm) internal reference, providing designers with superior flexibility and high performance across a wide range of applications. This application note describes the features and applications of this device and suggests a simple application circuit.

Overview of ZL50117GAG

The ZL50117GAG integrates a high precision direct conversion architecture with a wide range of features. It enables designers to address a variety of interface applications, such as telephone line control, telephone modem card, and multimedia card applications. It achieves an unmatched combination of ultra-low component count, low power consumption, high accuracy, and high sample rate. It also offers an extensive set of software programmable features, such as clock and sample rate selection.

The integrated dual channel receive Audio Digital Interface (RDI) delivers superior performance for telephone line control applications. It provides transmission and reception of a wide range of audio data, including voice, music and other audio signals. The dual channel RDI supports a wide range of modulation parameters, including both PCM (Pulse Code Modulation) and SAGC (Subscriber Access Gain Control) to meet the requirements of next generation telephony applications. The RDI also provides low latency and highly controlled jitter response to minimise bit errors and ensure reliable data transmission.

Working Principle of ZL50117GAG

The ZL50117GAG operates on a digital direct conversion principle. It is based on a highly integrated module that integrates high performance analog and digital components, 10-bit analog-to-digital converters (ADCs) and up-down converters, along with a 24-bit delta-sigma modulator (DSM). The module is powered by a single 3.3V supply and operates over a wide temperature range.

The ADCs provide minimal clock jitter, wide dynamic range and high signal-to-noise ratio (SNR) to maximise system performance. The up-down converters enable the device to directly convert analog data coming from the external sources (e.g. telephone line) into digital data, and vice versa. The 24-bit DSM ensures highly accurate, high-resolution digital conversion, allowing designers to accurately measure and control analog signals with minimal distortion.

The ZL50117GAG also supports automatic gain control, resulting in improved dynamic range for both receive and transmit paths. The device also supports various interface standards, such as TTL and CMOS, allowing designers to easily integrate this solution in a broad range of system architectures.

Application Field of ZL50117GAG

The ZL50117GAG is a highly versatile device and a great solution for different telecom and multimedia applications. The device is ideal for telephony/VOIP applications, providing a highly efficient playback and recording interface. It is also ideal for IP phone, IP PBX and cordless phone applications.

The device can also be used in a wide range of multimedia applications, such as video conferencing and streaming media. Its low power consumption and wide range of features make it an optimal choice for consumer and professional audio/video applications. It is also suitable for applications such as professional audio broadcasting and synthesisers.

In the consumer electronics space, the device can be used in home theatre systems, gaming consoles and portable media players. The low noise and low sample rate switch-over makes it a cost effective solution for consumer electronics applications.

Overall, the ZL50117GAG is a highly versatile device, offering superior performance and a wide range of features for a wide range of interface and telecom applications.

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