MAX7033ETJ+ Maxim Integrated Products, MAX7033ETJ+ Datasheet

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MAX7033ETJ+

Manufacturer Part Number
MAX7033ETJ+
Description
RF Receiver IC RX 315MHZ/433MHZ ASK
Manufacturer
Maxim Integrated Products
Type
Receiverr
Datasheet

Specifications of MAX7033ETJ+

Package / Case
TQFN-32 EP
Operating Frequency
450 MHz
Operating Supply Voltage
3.3 V, 5 V
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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 28-pin TSSOP and
32-pin TQFN packages and is specified over the
extended (-40°C to +105°C) temperature range.
19-3273; Rev 2; 1/11
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.
TOP VIEW
________________________________________________________________ Maxim Integrated Products
LNASRC
LNAOUT
MIXOUT
MIXIN1
MIXIN2
315MHz/433MHz ASK Superheterodyne
XTAL1
LNAIN
AGND
AGND
DGND
DVDD
AVDD
AVDD
IRSEL
General Description
10
11
12
13
14
1
2
3
4
5
6
7
8
9
+
Home Automation
Remote Controls
Local Telemetry
Wireless Sensors
MAX7033
TSSOP
Applications
28
27
26
25
24
23
22
21
20
19
18
17
16
15
XTAL2
SHDN
PDOUT
DATAOUT
V
DSP
DFFB
OPP
DSN
DFO
IFIN2
IFIN1
XTALSEL
AC
DD5
Receiver with AGC Lock
o Optimized for 315MHz or 433MHz Band
o Operates from Single +3.3V or +5.0V Supplies
o High Dynamic Range with On-Chip AGC
o AGC Hold Circuit
o 1ms AGC Release Time
o Selectable Image-Rejection Center Frequency
o Selectable x64 or x32 f
o Low 5.2mA Operating Supply Current
o < 3.5µA Low-Current Power-Down Mode for
o 250µs Startup Time
o Built-In 44dB RF Image Rejection
o Better than -114dBm Receive Sensitivity
o -40°C to +105°C Operation
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
MAX7033EUI+
MAX7033ETJ+
Efficient Power Cycling
LNAOUT
MIXIN1
MIXIN2
AGND
AGND
AVDD
IRSEL
N.C.
PART
1
2
3
4
5
6
7
8
+
-40°C to +105°C
-40°C to +105°C
TEMP RANGE
MAX7033
Ordering Information
TQFN
Pin Configurations
LO
/f
XTAL
Ratio
PIN-PACKAGE
28 TSSOP
32 TQFN-EP*
24
23
22
21
20
19
18
17
Features
DATAOUT
V
DSP
N.C.
DFFB
OPP
DSN
DFO
DD5
1

Related parts for MAX7033ETJ+

MAX7033ETJ+ Summary of contents

Page 1

... Low 5.2mA Operating Supply Current o < 3.5µA Low-Current Power-Down Mode for Efficient Power Cycling o 250µs Startup Time o Built-In 44dB RF Image Rejection o Better than -114dBm Receive Sensitivity o -40°C to +105°C Operation PART MAX7033EUI+ MAX7033ETJ+ + Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. 28 XTAL2 27 SHDN 26 PDOUT ...

Page 2

ASK Superheterodyne Receiver with AGC Lock ABSOLUTE MAXIMUM RATINGS V to AGND.......................................................-0.3V to +6.0V DD5 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 ...

Page 3

ASK Superheterodyne DC ELECTRICAL CHARACTERISTICS (+5.0V OPERATION) (continued) ( Typical Application Circuit , V = +4.5V to +5.5V signal applied, T DD5 values are +5.0V and T = +25°C.) (Note 1) DD5 A PARAMETER ...

Page 4

ASK Superheterodyne Receiver with AGC Lock AC ELECTRICAL CHARACTERISTICS (continued) ( Typical Application Circuit , AVDD T = -40°C to +105°C, unless otherwise noted. Typical values are PARAMETER SYMBOL LNA IN LOW-GAIN MODE ...

Page 5

ASK Superheterodyne AC ELECTRICAL CHARACTERISTICS (continued) ( Typical Application Circuit , AVDD T = -40°C to +105°C, unless otherwise noted. Typical values are PARAMETER SYMBOL Maximum Load Capacitance C Output High Voltage Output ...

Page 6

ASK Superheterodyne Receiver with AGC Lock ( Typical Application Circuit , AVDD SENSITIVITY vs. TEMPERATURE -108 PEAK RF INPUT POWER 0.2% BER -110 IF BANDWIDTH = 280kHz -112 f = 433MHz RF -114 -116 -118 -120 ...

Page 7

ASK Superheterodyne ( Typical Application Circuit , AVDD NORMALIZED IF GAIN vs. IF FREQUENCY -10 -15 -20 -25 - FREQUENCY (MHz) REGULATOR VOLTAGE vs. REGULATOR CURRENT 3.5 3.3 3.1 2.9 ...

Page 8

ASK Superheterodyne Receiver with AGC Lock PIN NAME TSSOP THIN QFN 1 29 XTAL1 Crystal Input 1 (See the Phase-Locked Loop section) Positive Analog Supply Voltage. For +5V operation, pin 2 is the output of an on-chip +3.2V low-dropout ...

Page 9

ASK Superheterodyne PIN NAME TSSOP THIN QFN Crystal Input 2. Can also be driven with an external reference oscillator. (See the Crystal 28 28 XTAL2 Oscillator section.) 1, 13, — N.C No Connection 21, 25 — — EP Exposed ...

Page 10

ASK Superheterodyne Receiver with AGC Lock The off-chip inductive degeneration is achieved by connecting an inductor from LNASRC to AGND. This inductor sets the real part of the input impedance at LNAIN, allowing for a more flexible input impedance ...

Page 11

ASK Superheterodyne injection is required due to the on-chip image-rejection architecture. The IF output is driven by a source follow- er biased to create a driving-point impedance of 330Ω; this provides a good match to the off-chip 330Ω ceram- ...

Page 12

ASK Superheterodyne Receiver with AGC Lock designed to operate with higher differential load capac- itance always pull the reference frequency higher. For example, a 4.7547MHz crystal designed to operate with a 10pF load capacitance oscillates at 4.7563MHz with the ...

Page 13

ASK Superheterodyne filter output. Both comparator inputs are accessible off- chip to allow for different methods of generating the slicing threshold, which is applied to the second com- parator input. The suggested data slicer configuration uses a resistor (R1) ...

Page 14

ASK Superheterodyne Receiver with AGC Lock THEN DD3 3.0V TO 3.6V CONNECTED CREATED BY LDO, 4.5V TO 5.5V AVAILABLE AT AVDD (PIN 2) C11 RF INPUT C14 ...

Page 15

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 15 © 2011 Maxim Integrated Products ...

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