General Description
The MAX7030 crystal-based, fractional-N transceiver is
designed to transmit and receive ASK/OOK data at fac-
tory-preset carrier frequencies of 315MHz or
433.92MHz with data rates up to 33kbps (Manchester
encoded) or 66kbps (NRZ encoded). This device gen-
erates a typical output power of +10dBm into a 50Ω
load and exhibits typical sensitivity of -114dBm. The
MAX7030 features separate transmit and receive pins
(PAOUT and LNAIN) and provides an internal RF switch
that can be used to connect the transmit and receive
pins to a common antenna.
The MAX7030 transmit frequency is generated by a 16-
bit, fractional-N, phase-locked loop (PLL), while the
receiver’s local oscillator (LO) is generated by an inte-
ger-N PLL. This hybrid architecture eliminates the need
for separate transmit and receive crystal reference
oscillators because the fractional-N PLL is preset to be
10.7MHz above the receive LO. Retaining the fixed-N
PLL for the receiver avoids the higher current-drain
requirements of a fractional-N PLL and keeps the
receiver current drain as low as possible. All frequency-
generation components are integrated on-chip, and
only a crystal, a 10.7MHz IF filter, and a few discrete
components are required to implement a complete
antenna/digital data solution.
The MAX7030 is available in a small, 5mm x 5mm, 32-
pin thin QFN package, and is specified to operate over
the automotive -40°C to +125°C temperature range.
Applications
2-Way Remote Keyless Entry
Security Systems
Home Automation
Remote Controls
Remote Sensing
Smoke Alarms
Garage Door Openers
Local Telemetry Systems
Features
+2.1V to +3.6V or +4.5V to +5.5V Single-Supply
Operation
Single-Crystal Transceiver
Factory-Preset Frequency (No Serial Interface
Required)
ASK/OOK Modulation
+10dBm Output Power into 50Ω Load
Integrated TX/RX Switch
Integrated Transmit and Receive PLL, VCO, and
Loop Filter
> 45dB Image Rejection
Typical RF Sensitivity*: -114dBm
Selectable IF Bandwidth with External Filter
< 12.5mA Transmit-Mode Current
< 6.7mA Receive-Mode Current
< 800nA Shutdown Current
Fast-On Startup Feature, < 250µs
Small, 32-Pin, Thin QFN Package
MAX7030
Low-Cost, 315MHz and 433.92MHz
ASK Transceiver with Fractional-N PLL
Ordering Information
19-3706; Rev 4; 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.
PART TEMP RANGE PIN-PACKAGE
MAX7030_ATJ+ -40°C to +125°C 32 Thin QFN-EP**
Product Selector Guide
PART CARRIER FREQUENCY (MHz)
MAX7030LATJ+ 315
MAX7030HATJ+ 433.92
*
0.2% BER, 4kbps Manchester-encoded data, 280kHz IF BW
+
Denotes a lead(Pb)-free/RoHS-compliant package.
**
EP = Exposed pad.
Note: The MAX7030 is available with factory-preset operating
frequencies. See the
Product Selector Guide
for complete part
numbers.
Pin Configuration, Typical Application Circuit, and
Functional Diagram appear at end of data sheet.
MAX7030
Low-Cost, 315MHz and 433.92MHz
ASK Transceiver with Fractional-N PLL
2
ABSOLUTE MAXIMUM RATINGS
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.
HVIN to GND .........................................................-0.3V to +6.0V
PAVDD, AVDD, DVDD to GND..............................-0.3V to +4.0V
ENABLE, T/R, DATA, AGC0, AGC1,
AGC2 to GND .......................................-0.3V to (V
HVIN
+ 0.3V)
All Other Pins to GND .............................-0.3V to (V
_VDD
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
32-Pin Thin QFN (derate 21.3mW/°C
above +70°C).............................................................1702mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, 50Ω system impedance, V
AVDD
= V
DVDD
= V
HVIN
= V
PAVDD
= +2.1V to +3.6V, f
RF
= 315MHz or 433.92MHz,
T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
AVDD
= V
DVDD
= V
HVIN
= V
PAVDD
= +2.7V,
T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage (3V Mode) V
DD
HVIN, PAVDD, AVDD, and DVDD
connected to power supply
2.1 2.7 3.6 V
Supply Voltage (5V Mode) HVIN
PAVDD, AVDD, and DVDD unconnected
from HVIN, but connected together
4.5 5.0 5.5 V
f
RF
= 315MHz 3.5 5.4
Transmit mode, PA off,
V
DATA
at 0% duty
cycle (Note 2)
f
RF
= 434MHz 4.3 6.7
f
RF
= 315MHz 7.6 12.3
Transmit mode, V
DATA
at 50% duty cycle
(Notes 3, 4)
f
RF
= 434MHz 8.4 13.6
f
RF
= 315MHz 11.6 19.1
Transmit mode, V
DATA
at 100% duty cycle
(Note 2)
f
RF
= 434MHz 12.4 20.4
Receiver 315MHz 6.1 7.9
Receiver 434MHz 6.4 8.3
mA
Deep-sleep
(3V mode)
0.8 8.8
T
A
< +85°C,
typ at +25°C
(Note 4)
Deep-sleep
(5V mode)
2.4 10.9
µA
Receiver 315MHz 6.4 8.2
Receiver 434MHz 6.7 8.4
mA
Deep-sleep
(3V mode)
8.0 34.2
Supply Current I
DD
T
A
< +125°C,
typ at +125°C
(Note 2)
Deep-sleep
(5V mode)
14.9 39.3
µA
Voltage Regulator V
REG
V
HVIN
= 5V, I
LOAD
= 15mA 3.0 V
DIGITAL I/O
Input-High Threshold V
IH
(Note 2)
0.9 x
V
HVIN
V
Input-Low Threshold V
IL
(Note 2)
0.1 x
V
HVIN
V
MAX7030
Low-Cost, 315MHz and 433.92MHz
ASK Transceiver with Fractional-N PLL
3
AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, 50Ω system impedance, V
PAVDD
= V
AVDD
= V
DVDD
= V
HVIN
= +2.1V to +3.6V, f
RF
= 315MHz or
433.92MHz, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
PAVDD
= V
AVDD
= V
DVDD
= V
HVIN
= +2.7V,
T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
Frequency Range 315/433.92 MHz
Maximum Input Level P
RFIN
0 dBm
f
RF
= 315MHz (Note 6) 32
Transmit Efficiency 100% Duty
Cycle
f
RF
= 434MHz (Note 6) 30
%
f
RF
= 315MHz (Note 6) 24
Transmit Efficiency 50% Duty
Cycle
f
RF
= 434MHz (Note 6) 22
%
ENABLE or T/R transition low to high,
transmitter frequency settled to within
50kHz of the desired carrier
200
ENABLE or T/R transition low to high,
transmitter frequency settled to within
5kHz of the desired carrier
350
Power-On Time t
ON
ENABLE transition low to high, or T/R
transition high to low, receiver startup
time (Note 5)
250
μs
RECEIVER
315MH
z
-114
Sensitivity
0.2% BER, 4kbps Manchester
data rate, 280kHz IF BW,
average RF power
434MH
z
-113
dBm
Image Rejection 46 dB
POWER AMPLIFIER
T
A
= +25°C (Note 4) 4.6 10.0 15.5
T
A
= +125°C, V
PAVDD
= V
AVDD
= V
DVDD
=
V
HVIN
= +2.1V (Note 2)
3.9 6.7
Output Power P
OUT
T
A
= -40°C, V
PAVDD
= V
AVDD
= V
DVDD
=
V
HVIN
= +3.6V (Note 4)
13.1 15.8
dBm
Modulation Depth 82 dB
Maximum Carrier Harmonics With output-matching network -40 dBc
Reference Spur -50 dBc
DC ELECTRICAL CHARACTERISTICS (continued)
(
Typical Application Circuit
, 50Ω system impedance, V
AVDD
= V
DVDD
= V
HVIN
= V
PAVDD
= +2.1V to +3.6V, f
RF
= 315MHz or 433.92MHz,
T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
AVDD
= V
DVDD
= V
HVIN
= V
PAVDD
= +2.7V,
T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Pulldown Sink Current AGC 0- 2, E N ABLE , T/R, D ATA ( V
H V I N
= 5.5V ) 20 µA
Output-Low Voltage V
OL
I
SINK
= 500µA 0.15 V
Output-High Voltage V
OH
I
SOURCE
= 500µA V
H V IN
- 0.26 V

MAX7030HATJ+

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
RF Transceiver 315/345/433.92MHz ASK Transceiver
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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