SAA1057

INTEGRATED CIRCUITS DATA SHEET SAA1057 Radio tuning PLL frequency synthesizer Product specification File under Integrated Circuits, IC01 November 1983 Philips Semiconductors Product specification Radio tuning PLL frequency synthesizer GENERAL DESCRIPTION The SAA1057 is a single chip frequency synthesizer IC in I2L technology, which performs all the tuning functions of a PLL radio tuning system. The IC is applicable to all types of radio receivers, e.g. car radios, hi-fi radios and portable radios. Features On-chip prescaler with up to 120 MHz input frequency. On-chip AM and FM input amplifiers with high sensitivity (30 mV and 10 mV respectively). Low current drain (typically 16 mA for AM and 20 mA for FM) over a wide supply voltage range (3,6 V to 12 V). On-chip amplifier for loop filter for both AM and FM (up to 30 V tuning voltage). QUICK REFERENCE DATA Supply voltage ranges VCC1 VCC2 VCC3 Supply currents Input frequency ranges at pin FAM at pin FFM Maximum crystal input frequency Operating ambient temperature range PACKAGE OUTLINE 18-lead DIL; plastic (SOT102H); SOT102-1; 1996 September 2. fFAM fFFM fXTAL Tamb ICC1 + ICC2 ICC3 3,6 to 12 3,6 to 12 SAA1057 On-chip programmable current amplifier (charge pump) to adjust the loop gain. Only one reference frequency for both AM and FM. High signal purity due to a sample and hold phase detector for the in-lock condition. High tuning speed due to a powerful digital memory phase detector during the out-lock cond...