Phase-Locked Loop Frequency Synthesizer

文件：164.84 Kbytes 页数：8 Pages

NSCNational Semiconductor (TI)

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AM/FM Digital Phase-Locked Loop Frequency Synthesizer

General Description\nThe DS8907 is a PLL synthesizer designed specifically for use in AM/FM radios. It contains the reference oscillator, a phase comparator, a charge pump, a 120 MHz ECL/I2L dual modulus programmable divider, and an 18-bit shift register/latch for serial data entry. The device is de ■ Uses inexpensive 4 MHz reference crystal\n■ FIN capability greater than 120 MHz allows direct synthesis at FM frequencies\n■ FM resolution of 25 kHz allows usage of 10.7 MHz ceramic filter distribution\n■ Serial data entry for simplified control\n■ 50 Hz output for ‘‘time-of-day’’ reference driven;

TI

德州仪器

Phase-Locked Loop Frequency Synthesizer

文件：164.84 Kbytes 页数：8 Pages

NSCNational Semiconductor (TI)

美国国家半导体美国国家半导体公司

Sensor-less Three-phase Brushless DC Motor Controller

文件：945 Kbytes 页数：46 Pages

ONSEMI

安森美半导体

Sensor-less Three-phase Brushless DC Motor Controller

文件：1.18809 Mbytes 页数：45 Pages

ONSEMI

安森美半导体

Sensor-less Three-phase Brushless DC Motor Controller

文件：945 Kbytes 页数：46 Pages

ONSEMI

安森美半导体