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MAX7034AUI+

P1-P3P4-P6P7-P9P10-P12P13-P14
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 (9.7mm x 4.4mm)
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
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
DVDD
DGND
MIXOUT
IRSEL
AGND
MIXIN2
MIXIN1
AVDD
LNAOUT
AGND
LNASRC
LNAIN
AVDD
V
DD5
XTAL1
TSSOP
TOP VIEW
MAX7034
+
Pin Configuration
Ordering Information
Applications
19-3109; Rev 3; 6/12
1
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.
/V denotes an automotive qualified part.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Application Circuit appears at end of data sheet.
PART TEMP RANGE PIN-PACKAGE
MAX7034AUI/V+T -40°C to +125°C 28 TSSOP
Automotive Remote
Keyless Entry
Security Systems
Garage Door Openers
Home Automation
Remote Controls
Local Telemetry
Wireless Sensors
MAX7034
315MHz/434MHz ASK Superheterodyne
Receiver
2
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, V
DD5
= +4.5V to +5.5V, no RF signal applied. T
A
= -40°C to +125°C, unless otherwise noted. Typical val-
ues are at V
DD5
= +5.0V and T
A
= +25°C, unless otherwise noted.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
DD5
to AGND.......................................................-0.3V to +6.0V
AVDD to AGND .....................................................-0.3V to +4.0V
DVDD to DGND .....................................................-0.3V to +4.0V
AGND to DGND.....................................................-0.1V to +0.1V
IRSEL, DATAOUT, XTALSEL,
SHDN, EN_REG to AGND ....................-0.3V to (V
DD5
+ 0.3V)
All Other Pins to AGND ..........................-0.3V to (V
DVDD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
28-Pin TSSOP (derate 12.8mW/°C above +70°C) ..1025.6mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
DD5
+5.0V nominal supply voltage 4.5 5.0 5.5 V
f
RF
= 315MHz 6.7 8.2
Supply Current I
DD
V
SHDN
= V
DD5
f
RF
= 434MHz 7.2 8.7
mA
Shutdown Supply Current I
SHDN
V
SHDN
= 0V 3 8 μA
Input-Voltage Low V
IL
0.4 V
EN_REG, SHDN
V
DD5
-
0.4
Input-Voltage High V
IH
XTALSEL
V
D V DD
-
0.4
V
Input Logic Current High I
IH
15 μA
f
RF
= 434MHz, V
IRSEL
= V
D V DD
V
D V DD
-
0.4
f
RF
= 375MHz, V
IRSEL
= V
D V DD
/2 1.1
V
D V DD
-
1.5
Image-Reject Select Voltage
(Note 2)
f
RF
= 315MHz, V
IRSEL
= 0V 0.4
V
DATAOUT Output-Voltage Low V
OL
I
SINK
= 10μA 0.125 V
DATAOUT Output-Voltage High V
OH
I
SOURCE
= 10μA
V
D D 5
-
0.125
V
MAX7034
315MHz/434MHz ASK Superheterodyne
Receiver
3
AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, V
DD5
= +4.5V to +5.5V, all RF inputs are referenced to 50Ω, f
RF
= 433.92MHz, T
A
= -40°C to +125°C,
unless otherwise noted. Typical values are at V
DD5
= +5.0V and T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
Startup Time t
ON
Time for valid signal detection after V
SHDN
= V
DD5
. Does not include baseband filter
settling.
250 μs
Receiver Input Frequency Range f
RF
300 450 MHz
Maximum Receiver Input Level 0 dBm
+25°C, 315MHz -114
Sensitivity at T
A
= +25
o
C (Note 3)
+25°C, 434MHz -113
dBm
+125°C, 315MHz -113
Sensitivity at T
A
= +125°C
(Note 3)
+125°C, 434MHz -110
dBm
Manchester coded 33
Maximum Data Rate
NRZ coded 66
kbps
LNA/MIXER
LNA/Mixer Voltage Gain (Note 4) 330Ω IF filter load 45 dB
LNA/Mixer Input-Referred 1dB
Compression Point
-50 dBm
Mixer Output Impedance Z
OUT_MIX
330 Ω
f
RF
= 434MHz, V
IRSEL
= V
DVDD
42
f
RF
= 375MHz, V
IRSEL
= V
DVDD
/2 44
Mixer Image Rejection
f
RF
= 315MHz, V
IRSEL
= 0V 44
dB
INTERMEDIATE FREQUENCY (IF)
Input Impedance Z
IN_IF
330 Ω
Operating Frequency f
IF
Bandpass response 10.7 MHz
3dB Bandwidth 10 MHz
RSSI Linearity ±0.5 dB
RSSI Dynamic Range 80 dB
P
RFIN
< -120dBm 1.15
RSSI Level
P
RFIN
> -40dBm 2.2
V
P1-P3P4-P6P7-P9P10-P12P13-P14

MAX7034AUI+

Mfr. #:
Buy MAX7034AUI+
Manufacturer:
Maxim Integrated
Description:
RF Receiver 315MHz/433MHz ASK Superheterodyne Rec
Lifecycle:
New from this manufacturer.
Delivery:
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