MAXIM MAX7058 315MHz 390MHz Dual-Frequency ASK Transmitter Specifications Sheet User Manual
Summary
The MAX7058 is a highly versatile UHF transmitter designed for reliable wireless communication across dual frequencies (315MHz/390MHz). This single-supply device supports ASK modulation and data rates up to 100kbps, making it ideal for applications like home automation, remote controls, and security systems. The comprehensive manual details its electrical specifications, operational parameters, automotive temperature range (-40°C to +125°C), and physical package information. This chip is essential for engineers developing robust and dependable RF sensor or remote control devices.
Page 1 Text Content
19-3206; Rev 0; 1/08
EVALUATION KIT AVAILABLE
315MHz/390MHz Dual-Frequency
ASK Transmitter
N. C. General Description N. C. Features CA P3 N. C.
The MAX7058 UHF transmitter alternately transmits
Switched 315MHz/390MHz Carrier Frequency
ASK/OOK data at 315MHz or 390MHz using a single
CA P4 DI
Using One Crystal
crystal. The MAX7058 has internal tuning capacitors at
PA OU EN AB LE
the output of the power amplifier that can be pro- +2.1V to +3.6V Single-Supply Operation
grammed for matching to the antenna or load. The RO UT TO GG LE
ASK/OOK Modulation
MAX7058 can transmit at a data rate up to 100kbps
NRZ (50kbps Manchester coded). Typical transmitted
Internal Switched Capacitors for Optimum Dual-
power into a 50Ω load is +10d Bm. The MAX7058 oper-
Frequency Operation
ates from +2.1V to +3.6V and draws under 8.0m A of current. The standby current is less than 1μA at room 8.0m A DC Current Drain (50% Duty Cycle OOK) temperature. A 15MHz crystal is used as the reference
0.8µA Standby Current
for 315MHz and 390MHz operation by selecting synthe- sizer-divide ratios of 21 and 26, respectively. Small 4mm x 4mm, 24-Pin Thin QFN Package The MAX7058 is available in a 4mm x 4mm, 24-pin thin QFN package and is specified to operate in the -40°C to +125°C automotive temperature range.
Applications Ordering Information
Garage Door Openers
N. C. N. C. PKG
PART TEMP RANGE PIN-PACKAGE
RF Remote Controls CODE Home Automation
CA P3 N. C. 24 Thi n QFN - E P *
MAX7058ATG+ - 40°C to + 125°C T2444+3
Wireless Sensors ( 4m m x 4m m )
+Denotes a lead-free package.
Security Systems CA P4 DI
*EP = Exposed paddle.
Automotive PA OU EN AB LE
Pin Configuration Functional Block Diagram
RO UT TO GG LE
N. C. N. C. TOP VIEW
CRYSTAL N.C. N.C. OSCILLATOR
XTAL1DVDD
DVDD XTAL1 FREQUENCY CHARGE
÷21 OR ÷26 PUMPPFD
FSEL XTAL2
FSEL EXPOSED XTAL2
DIGITAL PADDLE
CAP1 MAX7058 AVDD LOOP
CONTROL (GND) VCO
FILTER
CAP2 PAVDD CAP1 AVDD
N.C. N.C. ENVELOPE SHAPING
CAP2 PAVDD
N.C. N.C.MAX7058
*EP = EXPOSED PADDLE.
Maxim Integrated Products
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.
Page Summary Contents For MAXIM MAX7058 315MHz 390MHz Dual-Frequency ASK Transmitter Specifications Sheet User Manual
Manual Details
| Brand | Dual |
|---|---|
| Pages | 14 |
| File Size | 214.03 KB |
| Published | May 20, 2026 |
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Frequently Asked Questions
What frequencies can the MAX7058 transmit on?
It alternately transmits using a single crystal at either 315MHz or 390MHz.
What is the device's operating temperature range?
The specified automotive temperature range for this model is -40°C to +125°C.
What type of modulation and data rate does it support?
It supports ASK/OOK modulation up to 100kbps NRZ or 50kbps Manchester coded.
How is the circuit protected regarding lead composition?
The package variant T2444+ denotes a lead-free package.