19-1296; Rev 1; 1/98
Lo w -Vo lt a g e IF Tra n s c e ive r w it h
Lim it e r/RS S I a n d Qu a d ra t u re Mo d u la t o r
MAX2510
________________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
The MAX2510 is a highly integrated IF transceiver for
digital wireless applications. It operates from a +2.7V to
+ 5.5V s up p ly volta g e a nd fe a ture s four op e ra ting
mod e s for a d va nc e d s ys te m p owe r ma na g e me nt.
Supply current is reduced to 0.2µA in shutdown mode.
♦ +2.7V to +5.5V Single-Supply Operation
♦ Complete Receive Path: 600MHz (max) 1st IF to
30MHz (max) 2nd IF
♦ Unique, Wide-Dynamic-Range Downconverter
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.
Mixer Offers -8dBm IIP3, 11dB NF
♦ 90dB Dynamic-Range Limiter with High-Accuracy
RSSI Function
♦ Differential Limiter Output Directly Drives
CMOS Input
♦ 100MHz to 600MHz Transmit Quadrature
Modulator with 41dB Sideband Suppression
♦ 40dB Transmit Gain-Control Range; Up to +1dBm
Output Power
♦ Advanced Power Management (four modes)
♦ 0.2µA Shutdown Supply Current
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.
_______________Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
PIN-PACKAGE
MAX2510EEI
-40°C to +85°C
28 QSOP
________________________Ap p lic a t io n s
___________________P in Co n fig u ra t io n
PWT1900, Wireless Handsets, and Base Stations
TOP VIEW
PACS, PHS, DECT, and Other PCS Wireless
Handsets and Base Stations
LIMIN
CZ
1
2
3
4
5
6
7
8
9
28 VREF
27 MIXOUT
26 GND
400MHz ISM Transceivers
IF Transceivers
CZ
RSSI
GC
25 RXIN
Wireless Data Links
24 TXOUT
23 TXOUT
22 RXIN
MAX2510
LO
GND
V
CC
21
V
CC
Typical Operating Circuit appears on last page.
LO
20 GND
GND 10
TXEN 11
19
18
17
16
15
V
CC
Q
Q
I
RXEN 12
LIMOUT 13
LIMOUT 14
I
QSOP
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.