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The XR81101-AA02 is a clock synthesizer operating at a 3.3 V/2.5 V supply with Integer divider, using a 25 MHz parallel resonant crystal reference input provides a 125 MHz LVCMOS output. The device is optimized for use with a 25 MHz crystal (or system clock) and generates a 125 MHz output clock for GE applications. The LVCMOS output has very low phase noise jitter of sub 150 fs, while consuming extremely low power. The application diagram below shows a typical synthesizer configuration with any standard crystal oscillating in fundamental mode. Internal load capacitors are optionally available to minimize/eliminate external crystal loads. A system clock can also be used to overdrive the oscillator for a synchronous timing system. The typical phase noise plot below shows the jitter integrated over the 1.875 MHz to 20 MHz range that is widely used in WAN systems. These clock devices show a very good high frequency noise floor below -150 dB. The XR81101 is a family of Universal Clock synthesizer devices in TSSOP-8 packages. The devices generate ANY frequency in the range of 10 MHz to 200 MHz by utilizing a highly flexible delta sigma modulator and a wide ranging VCO. These devices can be used with standard crystals or external system clock to support a wide variety of applications. This family of products has an extremely low power PLL block with core power consumption 40% less than the equivalent devices from competition. By second sourcing several of the existing sockets, these devices provides a very compelling power efficiency value benefit across all market segments. Other clock multiplier and/or driver configurations are possible in this clock family and can be requested from the factory.

Features:

XR81101-AA02: Factory configured

One LVCMOS output

Crystal oscillator interface which can also be overdriven using a single-ended reference clock

Output frequency: 125 MHz

Crystal/input frequency: 25 MHz, parallel resonant crystal

RMS phase jitter @ 125 MHz, 1.875 MHz - 20 MHz: <150 fs

Full 3.3 V or 2.5 V operating supply

-40°C to 85°C ambient operating temperature

Lead-free (RoHS 6) package

Current, Supply	24 mA
Dimensions	3.1 x 4.5 x 1.1 mm
Frequency, Input	25 MHz
Height	0.043" (1.1mm)
Length	0.122" (3.1mm)
Mounting Type	Surface Mount
Number of Pins	8
Operating Voltage Range	3.135 to 3.465 V
Package Type	TSSOP
Temperature, Operating, Maximum	+85 °C
Temperature, Operating, Minimum	-40 °C
Temperature, Operating, Range	-40 to +85 °C
Width	0.177" (4.5mm)
关键词

Current, Supply 24 mA  Exar Current, Supply 24 mA  PLL Frequency Synthesizers Current, Supply 24 mA  Exar PLL Frequency Synthesizers Current, Supply 24 mA   Dimensions 3.1 x 4.5 x 1.1 mm  Exar Dimensions 3.1 x 4.5 x 1.1 mm  PLL Frequency Synthesizers Dimensions 3.1 x 4.5 x 1.1 mm  Exar PLL Frequency Synthesizers Dimensions 3.1 x 4.5 x 1.1 mm   Frequency, Input 25 MHz  Exar Frequency, Input 25 MHz  PLL Frequency Synthesizers Frequency, Input 25 MHz  Exar PLL Frequency Synthesizers Frequency, Input 25 MHz   Height 0.043" (1.1mm)  Exar Height 0.043" (1.1mm)  PLL Frequency Synthesizers Height 0.043" (1.1mm)  Exar PLL Frequency Synthesizers Height 0.043" (1.1mm)   Length 0.122" (3.1mm)  Exar Length 0.122" (3.1mm)  PLL Frequency Synthesizers Length 0.122" (3.1mm)  Exar PLL Frequency Synthesizers Length 0.122" (3.1mm)   Mounting Type Surface Mount  Exar Mounting Type Surface Mount  PLL Frequency Synthesizers Mounting Type Surface Mount  Exar PLL Frequency Synthesizers Mounting Type Surface Mount   Number of Pins 8  Exar Number of Pins 8  PLL Frequency Synthesizers Number of Pins 8  Exar PLL Frequency Synthesizers Number of Pins 8   Operating Voltage Range 3.135 to 3.465 V  Exar Operating Voltage Range 3.135 to 3.465 V  PLL Frequency Synthesizers Operating Voltage Range 3.135 to 3.465 V  Exar PLL Frequency Synthesizers Operating Voltage Range 3.135 to 3.465 V   Package Type TSSOP  Exar Package Type TSSOP  PLL Frequency Synthesizers Package Type TSSOP  Exar PLL Frequency Synthesizers Package Type TSSOP   Temperature, Operating, Maximum +85 °C  Exar Temperature, Operating, Maximum +85 °C  PLL Frequency Synthesizers Temperature, Operating, Maximum +85 °C  Exar PLL Frequency Synthesizers Temperature, Operating, Maximum +85 °C   Temperature, Operating, Minimum -40 °C  Exar Temperature, Operating, Minimum -40 °C  PLL Frequency Synthesizers Temperature, Operating, Minimum -40 °C  Exar PLL Frequency Synthesizers Temperature, Operating, Minimum -40 °C   Temperature, Operating, Range -40 to +85 °C  Exar Temperature, Operating, Range -40 to +85 °C  PLL Frequency Synthesizers Temperature, Operating, Range -40 to +85 °C  Exar PLL Frequency Synthesizers Temperature, Operating, Range -40 to +85 °C   Width 0.177" (4.5mm)  Exar Width 0.177" (4.5mm)  PLL Frequency Synthesizers Width 0.177" (4.5mm)  Exar PLL Frequency Synthesizers Width 0.177" (4.5mm)