MAX2510 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Low-Voltage IF Transceiver with Limiter/RSSI and Quadrature Modulator

19-1296; Rev 1; 1/98
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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.
________________________Applications
PWT1900, Wireless Handsets, and Base Stations
PACS, PHS, DECT, and Other PCS Wireless
Handsets and Base Stations
400MHz ISM Transceivers
IF Transceivers
Wireless Data Links
Typical Operating Circuit appears on last page.
____________________________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
___________________Pin Configuration
TOP VIEW
LIMIN 1
CZ 2
CZ 3
RSSI 4
GC 5
LO 6
GND 7
V_CC 8
LO 9
GND 10
TXEN 11
RXEN 12
LIMOUT 13
LIMOUT 14
MAX2510
QSOP
28 VREF
27 MIXOUT
26 GND
25 RXIN
24 TXOUT
23 TXOUT
22 RXIN
21 V_CC
20 GND
19 V_CC
18 Q
17 Q
16 I
15 I
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