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MB1509 - DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER

General Description

TRANSMIT/RECEPTION BLOCK 20-bit latch Programmable divider consisting of: Binary 7-bit swallow counter (Divide ratio: 0 to 127) Binary 11-bit programmable counter (Divide ratio: 16 to 2047) Phase detector with phase polarity change function 400MHz dual modulu

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Other Datasheets by Fujitsu Semiconductor Limited

Part Number Description
MB1501 SERIAL INPUT PLL FREQUENCY SYNTHESIZER
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MB1501L SERIAL INPUT PLL FREQUENCY SYNTHESIZER
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Sept. 1995 Edition 3.0a DATA SHEET MB1509 DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER WITH 400MHz PRESCALER The Fujitsu MB1509 is a 400MHz dual serial input PLL (Phase Locked) frequency synthesizer designed for cordless telephone application. The MB1509 has two PLL circuits on a single chip: one for transmit and the other for reception. Separate power supply pins are provided for the transmit and reception PLL circuits. Transmit PLL contains a low sensitivity charge pump for ease of modulation and reception PLL contains a high sensitivity charge pump for faster lock up time. The MB1509 incorporates two 400 MHz dual modulus prescalers to enable implemention of a pulse swallow function. It operates supply voltage of 3.0V typ.