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Features

  • Dual differential LVDS outputs
  • Selectable crystal oscillator interface or
  • LVCMOS/LVTTL TEST_CLK
  • Output frequency range: 31.25MHz to 700MHz
  • Crystal input frequency range: 10MHz to 25MHz
  • VCO range: 250MHz to 700MHz
  • Parallel or serial interface for programming counter and output dividers
  • RMS period jitter: 2.7ps (typical)
  • Cycle-to-cycle jitter: 18ps (typical)
  • 3.3V supply voltage
  • -40°C to 85°C ambient operating temperature

Description

The 8442 is a general purpose, dual output Crystal-to-Differential LVDS High Frequency Synthesizer. The 8442 has a selectable TEST_CLK or crystal input. The TEST_CLK input accepts LVCMOS or LVTTL input levels and translates them to LVDS levels. The VCO operates at a frequency range of 250MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interface to the configuration logic. The low phase noise characteristics of the 8442 makes it an ideal clock source for Gigabit Ethernet and Sonet applications.

Part NumberStatusSamplesStockPackageLead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Prog. InterfaceQty. per Reel (#)Qty. per Carrier (#)Pb (Lead) FreePb Free CategoryTemp. Range (°C)
8442AYLFObsoleteN/AOut of StockTQFP32#Tray3Parallel, Serial0250#Yese3 Sn0 to 70°C
8442AYLFTObsoleteN/AOut of StockTQFP32#Reel3Parallel, Serial2000#0Yese3 Sn0 to 70°C
8442BYLFObsoleteN/AIn StockTQFP32#Tray3Serial, Parallel0250#Yese3 Sn0 to 70°C
8442BYLFTObsoleteN/AIn StockTQFP32#Reel3Serial, Parallel2000#0Yese3 Sn0 to 70°C

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    Hi, teams.   Tracking https://support.dialog-semiconductor.com/forums/post/dialog-smartbond-bluetooth-low-energy-%E2%80%93-software/binary-too-big-if-emwin-font-included issues, I just noticed the new emWin library & example is uploaded. Trying to use XBF fonts, found ...

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