The device is intended to take 1 or 2 reference clocks, select between them, using a pin or register selection and generate up to 8 outputs that may be the same as the reference frequency or integer-divider versions of it.

The 8P79818 supports two output banks, each with its own divider and power supply. All outputs in one bank would generate the same output frequency, but each output can be individually controlled for output type, output enable or even powered-off.

The device supports a serial port for configuration of the parameters while in operation. The serial port can be selected to use the I2 C or SPI protocol. After power-up, all outputs will come up in LVDS mode and may be programmed to other configurations over the serial port. Outputs may be enabled or disabled under control of the OE input pin.

The device can operate over the -40°C to +85°C temperature range.

Features

  • Two differential inputs support LVPECL, LVDS, HCSL or LVCMOS reference clocks
  • Select which of the two input clocks is to be used as the reference clock for which divider via pin or register selection
  • Generates eight differential outputs or eight LVCMOS outputs, LVCMOS on Bank A only
  • Outputs arranged in 2 banks of 4 outputs each
  • Output enable control pin
  • Register programmable via I2C / SPI serial port
  • Core voltage supply of 3.3V, 2.5V or 1.8V
  • -40°C to +85°C ambient operating temperature
  • Lead-free (RoHS 6) packaging

Product Options

注文可能な製品ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Carrier Type 購入/サンプル
8P79818NLGI Active NLG32P1 VFQFPN 32 I Tray
Availability
8P79818NLGI8 Active NLG32P1 VFQFPN 32 I Reel
Availability
8P79818NLGI/W Active NLG32P1 VFQFPN 32 I Reel
Availability

技術資料

タイトル 他の言語 タイプ 形式 サイズ 日付
データシート
8P79818 Datasheet Datasheet PDF 863 KB
アプリケーションノート、ホワイトペーパー
AN-828 Termination - LVPECL Application Note PDF 229 KB
AN-844 Termination - AC Coupling Clock Receivers Application Note PDF 82 KB
AN-842 Thermal Considerations in Package Design and Selection Application Note PDF 403 KB
AN-840 Jitter Specifications for Timing Signals Application Note PDF 349 KB
AN-834 Hot-Swap Recommendations Application Note PDF 67 KB
AN-827 Application Relevance of Clock Jitter Application Note PDF 1.06 MB
AN-815 Understanding Jitter Units Application Note PDF 476 KB
AN-805 Recommended Ferrite Beads Application Note PDF 38 KB
その他資料
Timing Solutions Products Overview Overview PDF 4.11 MB
RF Timing Family Product Overview Overview PDF 723 KB
IDT Clock Generation Overview (日本語) English Overview PDF 1.83 MB
IDT Clock Distribution Overview (日本語) English Overview PDF 3.79 MB