MC44145

www.DataSheet4U.com Order this document by MC44145/D MC44145 Pixel Clock Generator/ Sync Separator The MC44145, Pixel Clock Generator, is a component of the MC44000 family. The MC44145 contains a sync separator with composite sync and vertical outputs, and clock generation circuitry for the digitization of any video signal along with the necessary circuitry for clock generation, such as a phase comparator and a divide–by–2 to provide a 50% duty cycle. The MC44145 is available in a SO–14 package and is fabricated in the Motorola high density, high speed, low voltage, process called MOSAIC 1.5®. PIXEL CLOCK GENERATOR/ SYNC SEPARATOR SEMICONDUCTOR TECHNICAL DATA MOSAIC is a trademark of Motorola, Inc. 14 1 Representative Block Diagram Sync Out Fref Video In 9 12 VCC Sync Sep 11 A Sync Separator B 3 5 C 4 A In Sync Amp Out 10 Div 2 EN 8 D SUFFIX PLASTIC PACKAGE CASE 751A (SO–14) PIN CONNECTIONS NPD Gain 1 Gnd 2 14 PLL Loop Filter 13 NBACK 12 Video In 11 VCC2 10 Sync Amp Out 9 8 (Top View) Fref Div 2 EN Phase and Frequency Comparator Up Charge Pump Dn Sync B 3 VC VCO B2 Sync Amp In 4 FO 2FO Sync C 5 VCC 6 Clock Out 7 MC44145 6 VCC 13 NBACK 1 NPD Gain 14 R C2 C External Divider Device This device contains 214 active transistors. MC44145D PLL Loop Filter 7 Clock Out 2 Gnd ORDERING INFORMATION Operating Temperature Range TA = 0° to +70°C Package SO–14 © Motorola, Inc. 1996 Rev 0 MOTOROLA ANALOG IC DEVICE DATA 1 MC44145 MAXIMUM RATINGS Rating Supply Voltage Stor...