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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX7034 Datasheet

315MHz/434MHz ASK Superheterodyne Receiver

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MAX7034 pdf
19-3109; Rev 0; 1/08
315MHz/434MHz ASK Superheterodyne
Receiver
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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.
Applications
Automotive Remote
Keyless Entry
Security Systems
Garage Door Openers
Home Automation
Remote Controls
Local Telemetry
Wireless Sensors
Typical Application Circuit appears at end of data sheet.
Features
Optimized for 315MHz or 433.92MHz Band
Operates from Single +5.0V Supply
Selectable Image-Rejection Center Frequency
Selectable x64 or x32 fLO/fXTAL 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
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX7034AUI+T
28 TSSOP
-40°C to +125°C (9.7mm x
4.4mm)
+Denotes a lead-free package.
T = Tape-and-reel.
U28-1
Pin Configuration
TOP VIEW
+
XTAL1 1
AVDD 2
LNAIN 3
LNASRC 4
AGND 5
LNAOUT 6
MAX7034
AVDD 7
MIXIN1 8
MIXIN2 9
AGND 10
IRSEL 11
MIXOUT 12
DGND 13
DVDD 14
TSSOP
28 XTAL2
27 SHDN
26 PDOUT
25 DATAOUT
24 VDD5
23 DSP
22 DFFB
21 OPP
20 DSN
19 DFO
18 IFIN2
17 IFIN1
16 XTALSEL
15 EN_REG
________________________________________________________________ Maxim Integrated Products 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX7034 Datasheet

315MHz/434MHz ASK Superheterodyne Receiver

No Preview Available !

MAX7034 pdf
315MHz/434MHz ASK Superheterodyne
Receiver
www.daAtasBheSeOt4uL.cUomTE MAXIMUM RATINGS
VDD5 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 (VDD5 + 0.3V)
All Other Pins to AGND............................-0.3V to (DVDD + 0.3V)
Continuous Power Dissipation (TA = +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
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.
DC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, VDD5 = +4.5V to +5.5V, no RF signal applied. TA = -40°C to +125°C, unless otherwise noted. Typical val-
ues are at VDD5 = +5.0V and TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
Supply Voltage
Supply Current
Shutdown Supply Current
Input-Voltage Low
Input-Voltage High
SYMBOL
VDD5
IDD
ISHDN
VIL
CONDITIONS
+5.0V nominal supply voltage
VSHDN = VDD5
fRF = 315MHz
fRF = 434MHz
VSHDN = 0V
EN_REG, SHDN
VIH
XTALSEL
MIN TYP
4.5 5.0
6.7
7.2
3
VDD5 -
0.4
DVDD -
0.4
MAX
5.5
8.2
8.7
8
0.4
UNITS
V
mA
µA
V
V
Input Logic Current High
IIH
15 µA
Image-Reject Select Voltage
(Note 2)
fRF = 434MHz, VIRSEL = DVDD
fRF = 375MHz, VIRSEL = DVDD/2
DVDD -
0.4
1.1
DVDD -
1.5
V
DATAOUT Output-Voltage Low
fRF = 315MHz, VIRSEL = 0V
VOL ISINK = 10µA
0.125
0.4
V
DATAOUT Output-Voltage High
VOH
ISOURCE = 10µA
VDD5 -
0.125
V
2 _______________________________________________________________________________________


Part Number MAX7034
Description 315MHz/434MHz ASK Superheterodyne Receiver
Maker Maxim Integrated Products
Total Page 13 Pages
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