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UMA1015, UMA1015AM, UMA1015AM/C1

Table of contents:
Info of UMA1015
Info of UMA1015AM
Info of UMA1015AM/C1

UMA1015, UMA1015AM, UMA1015AM/C1 Selling Leads, Datasheet

MFG:PHILIPS Package Cooled:TSSOP-20 D/C:2008+

UMA1015, UMA1015AM, UMA1015AM/C1 Picture

UMA1015, UMA1015AM, UMA1015AM/C1 Datasheet download

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Part Number: UMA1015

MFG: PHILIPS

Package Cooled: TSSOP-20

D/C: 2008+

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UMA1015AM General Description

The UMA1015AM is a low-power dual frequency synthesizer for radio communications which operates in the 50 to 1100 MHz frequency range. Each synthesizer consists of a fully programmable main divider, a phase and frequency detector and a charge pump. There is a fully programmable reference divider common to both synthesizers which operates up to 35 MHz.

The device is programmed via a 3-wire serial bus which operates up to 10 MHz. The charge pump currents (gains) are fixed by an external resistance at pin 20 (ISET). The BiCMOS device is designed to operate from 2.7 V (3 NiCd cells) to 5.5 V at low current. Digital supplies VDD1 and VDD2 must be at the same potential. The charge pump supply (VCC) can be provided by an external source or on-chip voltage doubler. VCC must be equal to or higher than VDD1.

Each synthesizer can be powered-down independently via the serial bus to save current. It is also possible to power-down the device via the HPD input (pin 5).

UMA1015AM Features

· Two fully programmable RF dividers up to 1.1 GHz
· Fully programmable reference divider up to 35 MHz
· 2 : 1 or 1 : 1 ratio of selectable reference frequencies
· Fast three-line serial bus interface
· Adjustable phase comparator gain
· Programmable out-of-lock indication for both loops
· On-chip voltage doubler
· Low current consumption from 3 V supply
· Separate power-down mode for each synthesizer
· Up to 4 open-drain output ports
· Crystal input frequency signal inverted and buffered output on separate pin.

UMA1015AM Typical Application

· Cordless telephone
· Hand-held mobile radio.

UMA1015AM Connection Diagram

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