概要

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 I2C 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.

8P79818 - Block Diagram
8P79818 - Pinout
8P79818 - Block Diagram
8P79818 - Pinout
  • 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

ドキュメント

設計・開発

ECADモデル

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Diagram of ECAD Models

製品選択

    Processing table
    Pkg. Type
    Lead Count (#)
    Temp. Grade
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    ご購入 / サンプル
    型名
    8P79818NLGI
    circleアクティブ
    memory
    view_in_ar
    サンプル入手可能
    今すぐ購入する
    		VFQFPN 32 I Tray 3 4.037 サンプルを入手,
    8P79818NLGI8
    circleアクティブ
    memory
    view_in_ar
    今すぐ購入する
    		VFQFPN 32 I Reel 3 4.458
    8P79818NLGI/W
    circleアクティブ
    memory
    view_in_ar
    		VFQFPN 32 I Reel 3
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    ブログ 2018年12月15日