Real Time Clock I2C Serial RTC

Real Time Clock

Real Time Clock 3V/5V RTC

Real Time Clock

Microwave Wideband Synthesizer with Integrated VCO Features: Output frequency range: 800 MHz to 12.8 GHz Jitter = 18 fsRMS (Integration BW: 100 Hz to 100 MHz) Jitter = 27 fsRMS (ADC SNR Method) Wideband Noise Floor: -160 dBc/Hz @12 GHz PLL Specifications: -239 dBc/Hz: Normalized In-Band Phase Noise Floor -147 dBc/Hz: Normalized In-Band 1/f Noise Phase Detector Frequency up to 500 MHzReference Input Frequency up to 1 GHz Typical -100 dBc PFD spursReference to Output Delay Specifications: Part-to-Part Standard Deviation: 3 ps Temperature Drift: 0.03 ps/ Adjustment Step Size: <+/-0.1 ps Multi-chip Output Phase Alignment 3.3 V and 5 V Power supplies 7 mm x 7 mm 48 Lead LGA

Real Time Clock

Delay Lines/Timing Elements Broadband Analog Time Delay to 24 GHz

Clock & Timer Development Tools LTC6992-4 Demo Board - 10kHz, 5-100% Dut

The AD9522-51 provides a multioutput clock distribution function with subpicosecond jitter performance, along with an on-chip PLL that can be used with an external VCO.   The AD9522 serial interface supports both SPI and I2C® ports. An in-package EEPROM can be programmed through the serial interface and store user-defined register settings for power-up and chip reset.The AD9522 features 12 LVDS outputs in four groups. Any of the 800 MHz LVDS outputs can be reconfigured as two 250 MHz CMOS outputs.Each group of outputs has a divider that allows both the divide ratio (from 1 to 32) and the phase (coarse delay) to be set.The AD9522 is available in a 64-lead LFCSP and can be operated from a single 3.3 V supply. The external VCO can have an operating voltage up to 5.5 V.The AD9522 is specified for operation over the standard industrial range of −40°C to +85°C.The AD9520-5 is an equivalent part to the AD9522-5 featuring LVPECL/CMOS drivers instead of LVDS/CMOS drivers.1The AD9522 is used throughout this data sheet to refer to all the members of the AD9522 family. However, when AD9522-5 is used, it is referring to that specific member of the AD9522 family.ApplicationsLow jitter, low phase noise clock distributionClock generation and translation for SONET, 10Ge, 10G FC, and other 10 Gbps protocolsForward error correction (G.710)Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEsHigh performance wireless transceiversATE and high performance instrumentationBroadband infrastructures

The ADCLK854 is a 1.2 GHz/250 MHz LVDS/CMOS fanout buffer optimized for low jitter and low power operation. Possible configurations range from 12 LVDS to 24 CMOS outputs, including combinations of LVDS and CMOS outputs. Three control lines are used to determine whether fixed blocks of outputs (three banks of four) are LVDS or CMOS outputs.The ADCLK854 offers two selectable inputs and a sleep mode feature. The IN_SEL pin state determines which input is fanned out to all the outputs. The SLEEP pin enables a sleep mode to power down the device.The inputs accept various types of single-ended and differential logic levels including LVPECL, LVDS, HSTL, CML, and CMOS. Table 8 provides interface options for each type of connection.This device is available in a 48-pin LFCSP package. It is specified for operation over the standard industrial temperature range of −40°C to +85°C.APPLICATIONSLow jitter clock distributionClock and data signal restorationLevel translationWireless communicationsWired communicationsMedical and industrial imagingATE and high performance instrumentation