器件名称:
LC72144M
功能描述:
PLL Frequency Synthesizer
文件大小:
308.5KB 共22页
简 介:
Ordering number : EN5377B CMOS LSI LC72144M PLL Frequency Synthesizer Overview The LC72144M is an electronic tuning PLL frequency synthesizer for use in car and home products, and allows high-performance multifunction tuners to be implemented easily, since it includes an A/D converter, a high-speed lockup circuit, and a crystal oscillator circuit that support AM up-conversion. Package Dimensions unit: mm 3112-MFP24S [LC72144M] Features High-speed programmable dividers for — 10 to 160 MHz on FMIN using pulse swallower — 0.5 to 40.0 MHz on AMIN using pulse swallower and direct division General-purpose counters — HCTR for 0.4 to 25.0 MHz frequency measurement — LCTR for 10 to 500 kHz frequency measurement and 4.0 Hz to 20 × 103 Hz period measurement 4.5, 7.2, 10.25 or 10.35 MHz crystal Twelve selectable reference frequencies (1, 3*2, 5, 9*2, 10, 3.125, 6.25, 12.5, 25, 30*2, 50 and 100*1 kHz) Note: 1. Not supported when a 10.35 or 10.25 MHz crystal oscillator is used. 2. Not supported when a 10.25 MHz crystal oscillator is used. Phase comparator — Insensitive band control — Unlock detection — Sub-charge pump for high-speed locking — Deadlock clear circuit A/D converter: 6 bits, 2 inputs Serial data input and output Supports control and communication in the CCB format Power-on reset circuit On-chip crystal oscillator output buffer Inputs/outputs (using six general-purpose input/output ports) Operating ranges — Power-supply voltage: 4.5 to 5.5 V — Operating temperat……
