MAX7034AUI+T Maxim Integrated Products, MAX7034AUI+T Datasheet

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MAX7034AUI+T

Manufacturer Part Number
MAX7034AUI+T
Description
RF Receiver IC RX 315MHZ/433MHZ ASK
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX7034AUI.pdf (14 pages)

Specifications of MAX7034AUI+T

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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 (9.7mm x 4.4mm)
TSSOP package and is specified over the automotive
(-40°C to +125°C) temperature range.
19-3109; Rev 1; 3/09
Automotive Remote
Keyless Entry
Security Systems
Garage Door Openers
Typical Application Circuit appears at end of data sheet.
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.
________________________________________________________________ Maxim Integrated Products
315MHz/434MHz ASK Superheterodyne
General Description
Home Automation
Remote Controls
Local Telemetry
Wireless Sensors
Applications
o Optimized for 315MHz or 433.92MHz Band
o Operates from Single +5.0V Supply
o Selectable Image-Rejection Center Frequency
o Selectable x64 or x32 f
o Low (< 6.7mA) Operating Supply Current
o < 3.0µA Low-Current Power-Down Mode for
o 250µs Startup Time
o Built-In 44dB RF Image Rejection
o Excellent Receive Sensitivity Over Temperature
o -40°C to +125°C Operation
/V denotes an automotive qualified part.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX7034AUI/V+T
Efficient Power Cycling
TOP VIEW
PART
LNASRC
LNAOUT
MIXOUT
MIXIN1
MIXIN2
XTAL1
LNAIN
DGND
AGND
AGND
IRSEL
AV
AV
DV
DD
DD
DD
10
11
12
13
14
1
2
3
4
5
6
7
8
9
-40°C to +125°C
+
Ordering Information
TEMP RANGE
MAX7034
TSSOP
LO
Pin Configuration
/f
XTAL
Receiver
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Ratio
XTAL2
SHDN
PDOUT
DATAOUT
V
DSP
DFFB
OPP
DSN
DFO
IFIN2
IFIN1
XTALSEL
EN_REG
DD5
PIN-PACKAGE
Features
28 TSSOP
1

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MAX7034AUI+T Summary of contents

Page 1

... Local Telemetry Garage Door Openers Wireless Sensors Typical Application Circuit appears at end of data sheet. ________________________________________________________________ Maxim Integrated Products 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. o Optimized for 315MHz or 433.92MHz Band o Operates from Single +5.0V Supply ...

Page 2

ASK Superheterodyne Receiver ABSOLUTE MAXIMUM RATINGS V to AGND.......................................................-0.3V to +6.0V DD5 AV to AGND ......................................................-0.3V to +4. DGND......................................................-0.3V to +4.0V DD AGND to DGND.....................................................-0.1V to +0.1V IRSEL, DATAOUT, XTALSEL, SHDN, EN_REG to AGND ....................-0.3V to ...

Page 3

ASK Superheterodyne AC ELECTRICAL CHARACTERISTICS ( Typical Application Circuit , V = +4.5V to +5.5V, all RF inputs are referenced to 50Ω, f VDD5 unless otherwise noted. Typical values are at V PARAMETER SYMBOL GENERAL CHARACTERISTICS Startup Time Receiver ...

Page 4

ASK Superheterodyne Receiver AC ELECTRICAL CHARACTERISTICS (continued) ( Typical Application Circuit , V = +4.5V to +5.5V, all RF inputs are referenced to 50Ω, f VDD5 unless otherwise noted. Typical values are at V PARAMETER SYMBOL DATA FILTER Maximum ...

Page 5

ASK Superheterodyne ( Typical Application Circuit , V = +5.0V, f DD5 SUPPLY CURRENT vs. SUPPLY VOLTAGE 7.8 7.6 7.4 +125°C +105°C +85°C 7.2 7.0 +25°C -40°C 6.8 6.6 4.5 4.7 4.9 5.1 5.3 SUPPLY VOLTAGE (V) SENSITIVITY vs. ...

Page 6

ASK Superheterodyne Receiver ( Typical Application Circuit , V = +5.0V, f DD5 NORMALIZED IF GAIN vs. IF FREQUENCY -10 -15 -20 -25 - FREQUENCY (MHz) PHASE NOISE vs. OFFSET FREQUENCY 0 -20 ...

Page 7

ASK Superheterodyne PIN NAME 1 XTAL1 Crystal Input 1 P osi ti ve Anal tag ust b e exter nal l ...

Page 8

ASK Superheterodyne Receiver LNASRC EN_REG LNAOUT MIXIN1 MIXIN2 LNA LNAIN 3.4V REG 24 V DD5 DIVIDE 14 VCO PHASE LOOP 13 DGND DETECTOR FILTER 5, 10 ÷1 ...

Page 9

ASK Superheterodyne on the tank filter center frequency. The total parasitic capacitance is generally between 4pF and 6pF. A unique feature of the MAX7034 is the integrated image rejection of the mixer. This device eliminates the need for a ...

Page 10

ASK Superheterodyne Receiver The data filter is implemented as a 2nd-order lowpass Sallen-Key filter. The pole locations are set by the com- bination of two on-chip resistors and two external capacitors. Adjusting the value of the external capaci- tors ...

Page 11

ASK Superheterodyne The peak-detector output (PDOUT), in conjunction with an external RC filter, creates a DC output voltage equal to the peak value of the data signal. The resistor pro- vides a path for the capacitor to discharge, allowing ...

Page 12

ASK Superheterodyne Receiver * AT 315MHz AT 433.92MHz C9 DO NOT POPULATE DO NOT POPULATE L1 51nH 27nH L2 120nH 56nH Y1 9.509375MHz 13.225625MHz C18 OPEN C12 C7 L2 0.1μF 100pF RF_IN * L3 15nH C9 +3.3V * +3.3V ...

Page 13

ASK Superheterodyne Chip Information PROCESS: CMOS ______________________________________________________________________________________ Receiver Package Information For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE PACKAGE CODE 28 TSSOP U28-1 DOCUMENT NO. 21-0066 13 ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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