Rainbow Electronics MAX7034 - Manual

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The MAX7034 fully integrated low-power CMOS super-
heterodyne receiver is ideal for receiving amplitude-
shift-keyed (ASK) data in the 300MHz to 450MHz
frequency range (including the popular 315MHz and
433.92MHz frequencies). The receiver has an RF sensi-
tivity of -114dBm. With few external components and a
low-current power-down mode, it is ideal for cost-sensi-
tive and power-sensitive applications typical in the
automotive and consumer markets. The MAX7034 con-
sists of a low-noise amplifier (LNA), a fully differential
image-rejection mixer, an on-chip phase-locked loop
(PLL) with integrated voltage-controlled oscillator
(VCO), a 10.7MHz IF limiting amplifier stage with
received-signal-strength indicator (RSSI), and analog
baseband data-recovery circuitry.
The MAX7034 is available in a 28-pin TSSOP package
and is specified over the automotive (-40°C to +125°C)
temperature range.
Features
♦ Optimized for 315MHz or 433.92MHz Band
♦ Operates from Single +5.0V Supply
♦ Selectable Image-Rejection Center Frequency
♦ Selectable x64 or x32 f
LO
/f
XTAL
Ratio
♦ Low (< 6.7mA) Operating Supply Current
♦ < 3.0µA Low-Current Power-Down Mode for
Efficient Power Cycling
♦ 250µs Startup Time
♦ Built-In 44dB RF Image Rejection
♦ Excellent Receive Sensitivity Over Temperature
♦ -40°C to +125°C Operation
MAX7034
315MHz/434MHz ASK Superheterodyne
Receiver
________________________________________________________________ Maxim Integrated Products 1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
XTAL2
SHDN
PDOUT
DATAOUT
DSP
EN_REG
DFFB
OPP
DSN
DFO
IFIN2
IFIN1
XTALSEL
DV DD
DGND
MIXOUT
IRSEL
AGND
MIXIN2
MIXIN1
AV DD
LNAOUT
AGND
LNASRC
LNAIN
AV DD
V DD5
XTAL1
TSSOP
TOP VIEW
MAX7034
+
Pin Configuration
Ordering Information
Applications
19-3109; Rev 0; 1/08
+ Denotes a lead-free package.
T = Tape-and-reel.
Typical Application Circuit appears at end of data sheet.
PART TEMP RANGE
PIN-
PACKAGE PKG
CODE
MAX7034AUI+T -40 °C to +125°C
28 TSSOP
(9.7mm x
4.4mm)
U28-1
Automotive Remote
Keyless Entry
Security Systems
Garage Door Openers
Home Automation
Remote Controls
Local Telemetry
Wireless Sensors