MAX7049
High-Performance, 288MHz to 945MHz ASK/FSK ISM Transmitter
Maximizes Output Transmit Power and Consumes the Lowest Supply Current
Part Details
- Transmitter (Tx)
- Provides Long Transmit Range Up to +15dBm
- 21mA Tx Current for +10dBm Tx Power*
- 41mA Tx Current for +15dBm Tx Power*
- Modulation Shaping, ASK, FSK
- General
- Delivers Long Battery Life
- < 50nA Shutdown Current
- < 350nA Sleep Current
- Minimizes the Number of I/Os Required Between the IC and the MCU Serial Peripheral Interface (SPI™)
- Regulatory Compliant
- FCC Part 15 Frequency Hopping
- ETSI EN300-220 Compatible
- On-Chip Temperature Sensor
- Fast Fractional-N Synthesizer with a User-Defined External Loop Filter
- Delivers Long Battery Life
The MAX7049 high-performance, single-chip, ultra-low-power ASK/FSK UHF transmitter operates in the industrial, scientific, medical (ISM) band at 288MHz to 945MHz carrier frequencies. The IC also includes a low phase noise fractional-N synthesizer for precise tuning, fast frequency agility, and low out-of-band power. To support narrow-band applications, the IC has both amplitude-shaping and frequency-shaping functions that enable the user to optimize spectral efficiency. The IC offers Tx power up to +15dBm. These features make the transmitter ideally suited for long-range applications.
Additional system-level features of the IC include a digital temperature sensor and a number of flexible GPOs for monitoring radio status and for the control of external functions. A complete transmitter system can be built using a low-end microprocessor control unit (MCU), the IC, a crystal, and a small number of passive components.
The IC is available in a small, 5mm x 5mm, 28-pin TQFN package with an exposed pad. It is specified to operate in the -40°C to +125°C automotive temperature range.
Applications
- Automatic Meter Reading (AMR)
- Home Automation
- Home Security
- Long-Range, One-Way Remote Keyless Entry (RKE)
- Remote Controls
- RF Modules
- RFID
- TPMS
- Wireless Sensor Networks
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 7
This is the most up-to-date revision of the Data Sheet.
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