UMA1014 Ver la hoja de datos (PDF) - Philips Electronics
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UMA1014 Datasheet PDF : 17 Pages
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Philips Semiconductors
Low-power frequency synthesizer for
mobile radio communications
Product specification
UMA1014
FEATURES
• Single chip synthesizer; compatible with Philips cellular
radio chipset
• Fully programmable RF divider
• I2C interface for two-line serial bus
• On-chip crystal oscillator/TCXO buffer from 3 to 16 MHz
• 16 reference division ratios allowing 5 to 100 kHz
channel spacing
• 1/8 crystal frequency output
• On-chip out-of-lock indication
• Two extra VCO control outputs
• Latched synthesizer alarm output
• Status register including out-of-lock indication and
power failure
• Power-down mode.
APPLICATIONS
• Cellular mobile radio (NMT, AMPS, TACS)
• Private mobile radio (PMR)
• Cordless telephones.
GENERAL DESCRIPTION
The UMA1014 is a low-power universal synthesizer which
has been designed for use in channelized radio
communication. The IC is manufactured in bipolar
technology and is designed to operate at 5 to 100 kHz
channel spacing with an RF input from 50 to 1100 MHz.
The channel is programmed via a standard I2C-bus. A
low-power sensitive RF divider is incorporated together
with a dead-zone eliminated, 3-state phase comparator.
The low-noise charge pump delivers 1 mA or 1/2 mA
output current to enable a better compromise between fast
switching and loop bandwidth. A power-down circuit
enables the synthesizer to be set to idle mode.
QUICK REFERENCE DATA
SYMBOL
VCC, VCP
ICC + ICP
ICCpd
fref
fRF
Tamb
PARAMETER
supply voltage range
supply current
ICC in power-down
phase comparator reference frequency
RF input frequency
operating ambient temperature range
MIN.
4.5
−
−
5
50
−40
TYP.
5.0
13
2.5
−
−
−
MAX.
5.5
−
−
100
1100
85
UNIT
V
mA
mA
kHz
MHz
°C
ORDERING INFORMATION
TYPE NUMBER
UMA1014T
NAME
SO16
PACKAGE
DESCRIPTION
plastic small outline package; 16 leads; body width 3.9 mm
VERSION
SOT109-1
October 1992
2
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