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19-1296; Rev 2; 1/01
N KIT M
TA SHE
LUATIO ET
WS DA
EVA
FOLLO
ANUAL
Low-Voltage IF Transceiver with
Limiter/RSSI and Quadrature Modulator
________________General Description
The MAX2510 is a highly integrated IF transceiver for
digital wireless applications. It operates from a +2.7V to
+5.5V supply voltage and features four operating
modes for advanced system power management.
Supply current is reduced to 0.2μA in shutdown mode.
In a typical application, the receiver downconverts a
high IF/RF (up to 600MHz) to a low IF (up to 30MHz)
using a double-balanced mixer. Additional functions
included in the receiver section are an IF buffer that
can drive an off-chip filter, an on-chip limiting amplifier
offering 90dB of received-signal-strength indication
(RSSI), and a robust differential limiter output driver
designed to directly drive a CMOS input. The transmit-
ter section upconverts I and Q baseband signals to an
IF in the 100MHz to 600MHz range using a quadrature
modulator. The transmit output is easily matched to
drive a SAW filter with an adjustable output from 0dBm
to -40dBm and excellent linearity.
The MAX2511 has features similar to the MAX2510, but
upconverts a low IF with an image-reject mixer. The
MAX2511 downconverter also offers image rejection
with a limiter/RSSI stage similar to that of the MAX2510.
____________________________Features
o +2.7V to +5.5V Single-Supply Operation
o Complete Receive Path: 600MHz (max) 1st IF to
30MHz (max) 2nd IF
o Unique, Wide-Dynamic-Range Downconverter
Mixer Offers -8dBm IIP3, 11dB NF
o 90dB Dynamic-Range Limiter with High-Accuracy
RSSI Function
o Differential Limiter Output Directly Drives
CMOS Input
o 100MHz to 600MHz Transmit Quadrature
Modulator with 41dB Sideband Suppression
o 40dB Transmit Gain-Control Range; Up to +1dBm
Output Power
o Advanced Power Management (four modes)
o 0.2μA Shutdown Supply Current
_______________Ordering Information
PART
MAX2510EEI
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
28 QSOP
________________________Applications
PWT1900, Wireless Handsets, and Base Stations
___________________Pin Configuration
TOP VIEW
PACS, PHS, DECT, and Other PCS Wireless
Handsets and Base Stations
400MHz ISM Transceivers
IF Transceivers
Wireless Data Links
LIMIN 1
CZ 2
CZ 3
RSSI 4
GC 5
28 VREF
27 MIXOUT
26 GND
25 RXIN
24 TXOUT
LO 6
GND 7
MAX2510
23 TXOUT
22 RXIN
Typical Operating Circuit appears on last page.
V CC 8
LO 9
GND 10
TXEN 11
RXEN 12
LIMOUT 13
LIMOUT 14
QSOP
21 V CC
20 GND
19 V CC
18 Q
17 Q
16 I
15 I
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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