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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX7033 Datasheet

315MHz/433MHz ASK Superheterodyne Receiver

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MAX7033 pdf
19-3273; Rev 1; 7/04
315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
www.datasheet4u.com
General Description
The MAX7033 fully integrated low-power CMOS super-
heterodyne receiver is ideal for receiving amplitude-
shift-keyed (ASK) data in the 300MHz to 450MHz
frequency range. The receiver has an RF input signal
range of -114dBm to 0dBm. With few external compo-
nents and a low-current power-down mode, it is ideal
for cost-sensitive and power-sensitive applications typi-
cal in the automotive and consumer markets. The
MAX7033 consists 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 ana-
log baseband data-recovery circuitry. The MAX7033
also has a discrete one-step automatic gain control
(AGC) that reduces the LNA gain by 35dB when the RF
input signal exceeds -62dBm. The AGC circuitry offers
an externally controlled hold feature.
The MAX7033 is available in a 28-pin TSSOP package
and is specified over the extended (-40°C to +105°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.
TOP VIEW
XTAL1 1
AVDD 2
LNAIN 3
LNASRC 4
AGND 5
LNAOUT 6
AVDD 7
MIXIN1 8
MIXIN2 9
AGND 10
IRSEL 11
MIXOUT 12
DGND 13
DVDD 14
MAX7033
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 AC
Features
Optimized for 315MHz or 433MHz Band
Operates from Single +3.3V or +5.0V Supplies
High Dynamic Range with On-Chip AGC
AGC Hold Circuit
1ms AGC Release Time
Selectable Image-Rejection Center Frequency
Selectable x64 or x32 fLO/fXTAL Ratio
Low 5.2mA Operating Supply Current
<3.5µA Low-Current Power-Down Mode for
Efficient Power Cycling
250µs Startup Time
Built-In 44dB RF Image Rejection
Better than -114dBm Receive Sensitivity
-40°C to +105°C Operation
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX7033EUI
MAX7033ETJ*
-40°C to +105°C
-40°C to +105°C
28 TSSOP
32 Thin QFN-EP**
*Future product—contact factory for availability.
**EP = Exposed paddle.
Pin Configurations
N.C.
AGND
LNAOUT
AVDD
MIXIN1
MIXIN2
AGND
IRSEL
1
2
3
4
5
6
7
8
MAX7033
24 DATAOUT
23 VDD5
22 DSP
21 N.C.
20 DFFB
19 OPP
18 DSN
17 DFO
THIN QFN
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX7033 Datasheet

315MHz/433MHz ASK Superheterodyne Receiver

No Preview Available !

MAX7033 pdf
315MHz/433MHz ASK Superheterodyne
Receiver with AGC Lock
www.dAataBshSeOet4Lu.UcoTmE 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,
AC, SHDN 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
32-Thin QFN (derate 21.3mW/°C above +70°C) ....1702.1mW
Operating Temperature Range .........................-40°C to +105°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-60°C to +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 (+3.3V OPERATION)
(Typical Application Circuit, AVDD = DVDD = VDD5 = +3.0V to +3.6V, no RF signal applied, TA = -40°C to +105°C, unless otherwise
noted. Typical values are at AVDD = DVDD = VDD5 = +3.3V and TA = +25°C.) (Note 1)
PARAMETER
Supply Voltage
Supply Current
Shutdown Supply Current
Input-Voltage Low
Input-Voltage High
SYMBOL
AVDD,
DVDD
IDD
ISHDN
VIL
CONDITIONS
+3.3V nominal supply voltage
VSHDN = DVDD
VSHDN = 0V,
VXTALSEL = 0V
fRF = 315MHz
fRF = 433MHz
fRF = 315MHz
fRF = 433MHz
VIH
MIN TYP
3.0 3.3
5.2
5.7
2.6
3.5
DVDD -
0.4
MAX
3.6
6.23
6.88
8.0
0.4
UNITS
V
mA
µA
V
V
Input Logic Current High
Image-Reject Select Voltage
(Note 2)
IIH
fRF = 433MHz, VIRSEL = VDD5
fRF = 375MHz, VIRSEL = VDD5 / 2
10 µA
VDD5 -
0.4
1.1
VDD5 -
V
1.0
DATAOUT Output-Voltage Low
DATAOUT Output-Voltage High
VOL
VOH
fRF = 315MHz, VIRSEL = 0V
ISINK = 10µA
ISOURCE = 10µA
0.125
DVDD -
0.125
0.4
V
V
DC ELECTRICAL CHARACTERISTICS (+5.0V OPERATION)
(Typical Application Circuit, VDD5 = +4.5V to +5.5V, no RF signal applied, TA = -40°C to +105°C, unless otherwise noted. Typical val-
ues are at VDD5 = +5.0V and TA = +25°C.) (Note 1)
PARAMETER
Supply Voltage
Supply Current
Shutdown Supply Current
Input-Voltage Low
SYMBOL
VDD5
IDD
ISHDN
VIL
CONDITIONS
+5.0V nominal supply voltage
VSHDN = VDD5
fRF = 315MHz
fRF = 433MHz
VSHDN = 0V,
VXTALSEL = 0V
fRF = 315MHz
fRF = 433MHz
MIN TYP MAX UNITS
4.5 5.0 5.5
V
5.2 6.4
5.7 6.76
mA
3.7
4.2 9.0
µA
0.4 V
2 _______________________________________________________________________________________


Part Number MAX7033
Description 315MHz/433MHz ASK Superheterodyne Receiver
Maker Maxim Integrated Products
Total Page 16 Pages
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