DN8522S

Prescaler DN8522S-A Prescaler IC for CATV s Overview The DN8522S-A is 1.7 GHz prescaler IC for CATV. It is made up of ECL flip-flop circuit which can be switched to the dividing ratios of 64, 128 or 256. 0.4±0.25 0.6±0.3 Unit: mm 1 8 5.0±0.3 s Features Power dissipation: 5 V, 26 mA To be switched to the dividing ratios of 64, 128 and 256 ECL-level output 1.27 4 5 Television, VCR 0.1±0.1 0.3 4.2±0.3 6.5±0.3 SOP008-P-0225A s Block Diagram VCC Input 1 Ref. 8 1/2 1/2 1/2 1/2 2 V CC 1/2 1/2  1/4  Switch 1/8  4 Output Buff. amp. GND 3 6 GND M1 M2 5 1.5±0.2 0.15 0.65 s Applications 1 DN8522S-A s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 Input pin Supply voltage pin Dividing ratio select pin: M1 Output pin GND pin Dividing ratio select pin: M2 N.C. Bias (Ref.) pin Description Prescaler s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *2 *1 Symbol VCC ICC PD Topr Tstg Rating 6.0 40 160 −20 to +80 −55 to +125 Unit V mA mW °C °C Operating ambient temperature Storage temperature *1 Note) 1. *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: The power dissipation shown is for the IC package at Ta = 80°C s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 4.5 to 5.5 Unit V s Electrical Characteristics at Ta = 25°C Parameter Supply voltage Supply current Input frequency Input signal level Output amplitude High-level input voltage Lo...