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HPMX-5002-TY1 Datasheet

  • HPMX-5002-TY1

  • IF Modulator/Demodulator IC

  • 162.18KB

  • 14頁

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IF Modulator/Demodulator IC
Technical Data
HPMX-5002
Features
鈥?Use with HPMX-5001
Up/Down Converter Chip
for DECT Telephone
Applications
鈥?2.7鈥?5.5 V Single Supply
Voltage
鈥?>75 dB RSSI Range
鈥?Internal Data Slicer
鈥?On-chip LO Generation,
Including VCO, Prescalers
and Phase/ Frequency
Detector
鈥?Flexible Chip Biasing,
Including Standby Mode
鈥?Supports Reference Crystal
Frequencies of 9, 12, and 16
Times the DECT Bit Rate
(1.152 MHz)
鈥?IF Input Frequency Range
up to 250 MHz
鈥?TQFP-48 Surface Mount
Package
Plastic TQFP-48 Package
Description
The Hewlett-Packard HPMX-5002
IF Modulator/Demodulator
provides all of the active compo-
nents necessary for the demodula-
tion of a downconverted DECT
signal. Designed specifically for
DECT, the HPMX-5002 contains a
down-conversion mixer (to a 2nd
IF), limiting amplifier chain,
discriminator/data slicer, lock
detector, and RSSI circuits. The
LO2 generation is also included
on-chip, via a VCO, dividers, and
phase/frequency detector. The
divide ratios are programmable to
support reference frequencies of
either 9, 12, or 16 times the DECT
bit rate of 1.152 MHz allowing the
use of common, low cost crystals.
The LO2 VCO can also be utilized in
transmit mode by directly modulat-
ing the external VCO tank. An AGC
loop in the buffered VCO output
suppresses harmonics and reduces
signal level variability.
The HPMX-5002 is designed to meet
the size and power demands of
portable applications. Battery cell
count and cost are reduced due to
the 2.7 V minimum supply voltage.
The TQFP-48 package, combined
with the high level of integration,
means smaller footprints and fewer
components. Flexible chip biasing
takes full advantage of the power
savings inherent in time-duplexed
systems such as DECT.
5965-9106E
02
鈥?50
X
PM3
H 3
019
94
5
643
Pin Configuration
48
1
37
36
HPMX鈥?002
9433
6435
12
13
019
25
24
Applications
鈥?DECT, Unlicensed PCS and
ISM Band Handsets,
Basestations and Wireless
LANs
7-105

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