TC9172AP

      The TC9172AP is designed as high speed PLL-LSI developed for digital tuning system use, and contain 2 modulus prescaler.
      TC9172AP has many features.The first one is it they contain prescaler, and can directly input the frequency signal of 120MHz max at FM band.The second one is either pulse swallow dividing type or direct dividing type can be applied depending upon receiving band.The third one is both high function type (DIP22 pin) and conventional type (DIP16 pin) are provided.High function type contains IF counter which counts IF signal at FM/AM band each and produces auto-stop.The next one is reference frequency is supplied from the controller LSI, and no crystal oscillator is required on the PLL LSI.The next one is they have two phase comparator outputs, and can use two kinds of low pass filters with out changing.The next one is abundant general purpose input-output terminals make possible the control of radio frequency circuit part.The next one is frequency input terminals are provided for FM and AM, independently.The next one is IF offset can be easily controlled at FM band.The last one is as serial ports are contained, control of all functions including frequency dividion number setting is performed through four serial bus lines.That are all the features.
      Some absolute maximum ratings of TC9172AP have been concluded into several points as follow.The first one is about its supply voltage which would be from -0.3 to 6.0V.The next one is about its input voltage which would be -0.3 to Vdd+0.3.The next one is about its power dissipation which would be 300mW.The next one is about its operating temperature range which would be from -30 to 75°C.The next one is about its storage temperature which would be from -55 to 125°C.The next one is about its operating supply voltage range which would be min 4.5V and typ 5.0V and max 5.5V.And so on.For more information of TC9172AP,  please contact us.