SI5332B-C-GM1

Series:	MultiSynth™
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Clock Generator
PLL:	Yes
Input:	LVCMOS, Crystal
Output:	HCSL, LVCMOS, LVDS, LVPECL
Number of Circuits:	1
Ratio - Input:Output:	2:6
Differential - Input:Output:	Yes/Yes
Frequency - Max:	200MHz
Divider/Multiplier:	Yes/No
Voltage - Supply:	1.71 V ~ 3.63 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-QFN (5x5)

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SI5332B-C-GM1 Application Field and Working PrincipleThe Silterra SI5332B-C-GM1 programmable clock generator is designed for applications that require high flexibility of digital clocks, such as networking infrastructure and datacenter applications. This part is part of the Silterra Clockfanopolis® family, with a wide assortment of PLLs, clock generators, and fanout dividers, each designed to meet the specific needs of embedded digital systems.The SI5332B-C-GM1 integrates a low-noise, 75-ohm clock driver with high-accuracy and jitter performance into a single device, enabling high-speed and reliable clock signal distribution. The output of this part can deliver up to four clock signals, while supporting up to 400 MHz frequency and featuring a wide operating temperature range of -40 to 85°C. This makes the SI5332B-C-GM1 an ideal choice for applications in tough industrial environments.Clock generators are typically divided into two categories: phase-locked-loop (PLL) clock generators and frequency synthesizers. Both types employ some form of frequency synthesis to generate a desired output frequency. PLL clock generators use an external oscillator to create the desired output frequency, while frequency synthesizers use internally generated reference clock frequencies to achieve the desired frequency. The SI5332B-C-GM1 clock generator is primarily a PLL clock generator, but with some additional internal circuitry to enhance the frequency accuracy and jitter performance. The device uses an external oscillator to generate a reference clock signal, which is then divided down to an integer frequency, which is then used to generate the desired output frequency. This output frequency is then fed into the PLL, which uses a phase-locked loop to accurately generate the output clock signal.The PLL portion of the SI5332B-C-GM1 contains an input frequency divider, a loop filter, a phase-frequency detector, and a voltage-controlled oscillator (VCO). The input frequency divider divides the input frequency down to an integer ratio, and the VCO generates the desired output clock signal. The loop filter smooths out any sudden changes in the frequency, while the phase-frequency detector compares the phase of the input frequency to the phase of the output frequency and adjusts the VCO accordingly.The SI5332B-C-GM1 also includes additional features to enhance its performance. These include a low-noise, wideband LC filter to reduce noise and jitter on the output signal, an integrated compensation loop to provide faster settling time, and a temperature-compensated crystal oscillator (TCXO) for temperature-controlled performance.In conclusion, the SI5332B-C-GM1 is an ideal choice for applications that require a low-noise, high-accuracy clock signal, such as networking and datacenter applications. With its integrated 75-ohm clock driver, wide operating temperature range, and enhanced PLL circuitry, this part is suitable for use in a range of industrial environments.

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