IDT23S09-1HDC8

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The IDT23S09-1HDC8 device is a versatile clock generator and phase-locked loop (PLL). Its function is to generate high-precision stable clock outputs and provide clock synchronization to the large variety of consumer electronics, communications, and industrial applications. The device\'s features provide a powerful solution for many different clock-related requirements, allowing for applications such as clock input buffering, clock source selection, and frequency synthesis.

Application Field

The IDT23S09-1HDC8 device is particularly useful for applications such as global navigation systems, digital broadcasting, telecoms, data and voice networks, industrial and automotive applications, test and measurement, clock source selection, and clock synchronization. Its features enable it to generate stable and precise clock signals of various frequencies while also providing reliable signal integrity and robust signal protection.

The device reliably sources low-phase noise. Its on-chip loop filters and programmable dividers enable designers to program the precision and jitter requirements of the application. With its versatile clock configurations, the device can simultaneously provide multiple clock outputs with different frequencies, along with a synchronized PLL output. This ensures that the frequencies of all outputs are synchronized, within accuracy and jitter specifications.

The chip is executed in CMOS process technology, configured as a typical four-input, four-output universal clock generator. It includes two differential crystal oscillator interfaces, one reference oscillator input, and four programmable output dividers. Each output divider is capable of generating a variety of clock frequencies with a wide range of accuracy and compliance. As this device uses a single 3.3 V supply for its core functions, and a single 1.8 V for its differential inputs, it makes it ideal for use in space-constrained low power applications.

Working Principle

The IDT23S09-1HDC8 functions as a clock generator and PLL. The device can accept up to four inputs - two parallel crystal oscillator (XO) inputs and a reference oscillator input - and output up to four clock signals of different frequencies on its programmable output dividers. Upon power-up, the device intelligently determines the oscillator mode and configures the output dividers accordingly, multiplexing XO and reference oscillator inputs to the corresponding output pins.

All programmable parameters are structured as binary registers, written to the configuration registers; they are 3-bit, 4-bit, and 5-bit address registers. These registers program the divide ratio, the clock source, the hardware reset, and the output type. Additionally, the device uses on-chip loop filters with programmable transition points, allowing end-users to customize their system to the specific frequency and jitter requirements for their application.

The device can select from different source clocks with minimal jitter over the operating temperature range, as long as one of the XO inputs is connected. Additionally, the chip features a reference oscillator (REFO) bypass mode which preempts the XO and applies the on-chip internal oscillator as the source for PLL output. Furthermore, the user can select and configure the bypass frequency, along with the possibility of multiplexing the clock outputs.

The IDT23S09-1HDC8 is a highly integrated clock generator and PLL with high-accuracy and low-jitter performance. Its versatile features, along with its minimal system cost, make it an ideal choice for a wide range of consumer, industrial, and telecoms applications.

The specific data is subject to PDF, and the above content is for reference