SI5397D-A-GM

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The SI5397D-A-GM is a clock generator and frequency synthesizer ideally suited for a variety of applications. It is a low jitter, low power device that is capable of generating frequencies up to 2.2 GHz. The SI5397D-A-GM has one differential output, one differential reference input, and one programmable paging output.

The working principle of the SI5397D-A-GM is based on a PLL (Phase Locked Loop) architecture. The device features a 3-Phase Modulo PLL structure with an integrated charge pump and loop filter to support a wide frequency range of up to 2.2 GHz. The device includes both a Voltage Controlled Oscillator (VCO) and a Digital Frequency Synthesizer (DGS) for low noise and low power operation. The DGS uses a digitally programmable Phase Detector, Charge Pump, and downconversion information for generating very clean clock outputs.

The SI5397D-A-GM has several features that make it suitable to be used in a variety of applications. For example, the device has support for Programmable On-Time, which allows the user to program a PWM signal with a settable timeout or pulse duration. This feature can be used in applications requiring a watch-dog or often times a programmable reset signal. The device also provides up to 63 programmable spread spectrum profiles, which can be used to reduce EMI without the need to implement an external filter.

One of the primary applications for the SI5397D-A-GM is in data communications. The device can generate and lock onto clock signals used in applications such as 10/100/1000 Ethernet, USB 3.0, DisplayPort, and IEEE 1394. In addition, the device can generate a range of frequencies from 32 KHz up to 2.2 GHz, making it suitable for applications such as RFID, WLAN, Zigbee, and WiMAX. The device is also suitable for other communications and computing applications, such as V-by-One, FPGAs, and Media Processors.

In summary, the SI5397D-A-GM is a low jitter, low power clock generator and frequency synthesizer ideally suited for a variety of applications. The device has an integrated paging output and up to 63 programmable spread spectrum profiles which make it suitable for data communications, RFID, WLAN and computing applications. The device is also suitable for generating frequencies up to 2.2 GHz, making it an ideal choice for applications requiring low jitter, low power and high accuracy clock signals.

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