UMA1021AM, UMA1021AM/C1, UMA1021M Selling Leads, Datasheet
MFG:SSOP-16P Package Cooled:PHILIPS D/C:5
UMA1021AM, UMA1021AM/C1, UMA1021M Datasheet download
Part Number: UMA1021AM
MFG: SSOP-16P
Package Cooled: PHILIPS
D/C: 5
UMA1021AM, UMA1021AM/C1, UMA1021M
- Table of contents:
Info of UMA1021AM
Info of UMA1021AM/C1
Info of UMA1021M
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About UMA1021AM
PDF/DataSheet Download
Datasheet: UMA1021AM
File Size: 106621 KB
Manufacturer: PHILIPS [Philips Semiconductors]
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About UMA0204
PDF/DataSheet Download
Datasheet: UMA0204
File Size: 111715 KB
Manufacturer: VISAY [Vishay Siliconix]
Download : Click here to Download
About UMA1021M
PDF/DataSheet Download
Datasheet: UMA1021M
File Size: 110092 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
UMA1021AM General Description
The device is designed to operate from 3 NiCd cells, in pocket phones, with low current and nominal 3 V supplies.
The synthesizer operates at RF input frequencies up to 2.2 GHz with a fully programmable reference divider. All divider ratios are supplied via a 3-wire serial programming bus.
Separate power and ground pins are provided to the analog (charge pump) and digital circuits. The ground leads should be externally short-circuited to prevent large currents flowing across the die and thus causing damage. VDD1 and VDD2 must also be at the same potential (VDD). VCC must be equal to or greater than VDD for wider control range of the Voltage Controlled Oscillator (VCO), e.g. VDD = 3 V and VCC = 5 V.
The charge pump current (phase detector gain) is fixed by an external resistor at pin ISET and controlled via the serial interface. Only a passive loop filter is necessary; the charge pump functions within a wide voltage compliance range to improve the overall system performance.
The synthesizer operates at RF input frequencies up to 2.2 GHz with a fully programmable reference divider. All divider ratios are supplied via a 3-wire serial programming bus.
Separate power and ground pins are provided to the analog (charge pump) and digital circuits. The ground leads should be externally short-circuited to prevent large currents flowing across the die and thus causing damage. VDD1 and VDD2 must also be at the same potential (VDD). VCC must be equal to or greater than VDD for wider control range of the Voltage Controlled Oscillator (VCO), e.g. VDD = 3 V and VCC = 5 V.
The charge pump current (phase detector gain) is fixed by an external resistor at pin ISET and controlled via the serial interface. Only a passive loop filter is necessary; the charge pump functions within a wide voltage compliance range to improve the overall system performance.
UMA1021AM Features
· Low phase noise
· Low current from 3 V supply
· Fully programmable main divider
· 3-line serial interface bus
· Independent fully programmable reference divider,driven from external crystal oscillator
· Hard and soft power-down control.
· Low current from 3 V supply
· Fully programmable main divider
· 3-line serial interface bus
· Independent fully programmable reference divider,driven from external crystal oscillator
· Hard and soft power-down control.
UMA1021AM Typical Application
· 900 MHz and 2 GHz mobile telephones
· Portable battery-powered radio equipment.
· Portable battery-powered radio equipment.
UMA1021AM Connection Diagram
UMA1021M General Description
The device is designed to operate from 3 NiCd cells, in pocket phones, with low current and nominal 3 V supplies. The synthesizer operates at RF input frequencies up to 2.2 GHz, with a fully programmable reference divider. All divider ratios are supplied via a 3-wire serial programming bus. Separate power and ground pins are provided to the analog (charge-pump) and digital circuits.
The ground leads should be externally short-circuited to prevent large currents flowing across the die and thus causing damage. VDD1 and VDD2 must also be at the same potential (VDD). VCC must be equal to or greater than VDD (e.g. VDD = 3 V and VCC = 5 V for wider VCO control voltage range).
The phase detector has two charge-pump outputs, CP and CPF, the latter of which is enabled directly at pin FAST. This permits the design of adaptive loops. The charge pump currents (phase detector gain) are fixed by an external resistance at pin ISET and via the serial interface. Only a passive loop filter is necessary; the charge pumps function within a wide voltage compliance range to improve the overall system performance.
The ground leads should be externally short-circuited to prevent large currents flowing across the die and thus causing damage. VDD1 and VDD2 must also be at the same potential (VDD). VCC must be equal to or greater than VDD (e.g. VDD = 3 V and VCC = 5 V for wider VCO control voltage range).
The phase detector has two charge-pump outputs, CP and CPF, the latter of which is enabled directly at pin FAST. This permits the design of adaptive loops. The charge pump currents (phase detector gain) are fixed by an external resistance at pin ISET and via the serial interface. Only a passive loop filter is necessary; the charge pumps function within a wide voltage compliance range to improve the overall system performance.
UMA1021M Features
· Low phase noise
· Low current from 3 V supply
· Fully programmable main divider
· 3-line serial interface bus
· Independent fully programmable reference divider,driven from external crystal oscillator
· Dual charge pump outputs
· Hard and soft power-down control.
· Low current from 3 V supply
· Fully programmable main divider
· 3-line serial interface bus
· Independent fully programmable reference divider,driven from external crystal oscillator
· Dual charge pump outputs
· Hard and soft power-down control.
UMA1021M Typical Application
· 900 MHz and 2 GHz mobile telephones
· Portable battery-powered radio equipment.
· Portable battery-powered radio equipment.
UMA1021M Connection Diagram
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