Product Details
Key Features
Applications/Uses
Frequency Range (MHz) | 300 to 450 |
Modulation Mode | ASK FSK OOK |
Data Rate (kbps) (max) | 66 |
Tx Output Power (dBm) (max) | 10 |
RX Sensitivity (dBm) | -114 |
VSUPPLY (V) | 2.1V to 3.6V 4.5V to 5.5V |
ISUPPLY (mA) | Rx: <6.7 ,Tx <12.5 |
Package/Pins | TQFN/32 |
Budgetary Price (See Notes) | 0 |
Simplified Block Diagram
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Parameters
Frequency Range (MHz) | 300 to 450 |
Modulation Mode | ASK FSK OOK |
Data Rate (kbps) (max) | 66 |
Tx Output Power (dBm) (max) | 10 |
RX Sensitivity (dBm) | -114 |
VSUPPLY (V) | 2.1V to 3.6V 4.5V to 5.5V |
ISUPPLY (mA) | Rx: <6.7 ,Tx <12.5 |
Package/Pins | TQFN/32 |
Budgetary Price (See Notes) | 0 |
Key Features
- +2.1V to +3.6V or +4.5V to +5.5V Single-Supply Operation
- Single Crystal Transceiver
- User-Adjustable 300MHz to 450MHz Carrier Frequency
- ASK/OOK and FSK Modulation
- User-Adjustable FSK Frequency Deviation Through Fractional-N PLL Register
- Agile Transmitter Frequency Synthesizer with fXTAL/4096 Carrier-Frequency Spacing
- +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*
- ASK: -114dBm
- FSK: -110dBm
- Selectable IF Bandwidth with External Filter
- RSSI Output with High Dynamic Range
- Autopolling Low-Power Management
- < 12.5mA Transmit-Mode Current
- < 6.7mA Receive-Mode Current
- < 23.5µA Polling-Mode Current
- < 800nA Shutdown Current
- Fast-On Startup Feature, < 250µs
- Small 32-Pin, Thin QFN Package
Applications/Uses
- 2-Way Remote Keyless Entry
- Garage Door Openers
- Home Automation
- Local Telemetry Systems
- Remote Controls
- Remote Sensing
- Security Systems
- Smoke Alarms
Description
The MAX7032 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 integer-N PLL. This hybrid architecture eliminates the need for separate transmit and receive crystal reference oscillators because the fractional-N PLL allows the transmit frequency to be set within 2kHz of the receive frequency. The 12-bit resolution of the fractional-N PLL allows frequency multiplication of the crystal frequency in steps of fXTAL/4096. 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.
The fractional-N architecture of the MAX7032 transmit PLL allows the transmit FSK signal to be programmed for exact frequency deviations, and completely eliminates the problems associated with oscillator-pulling FSK signal generation. 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 MAX7032 is available in a small 5mm x 5mm, 32-pin, thin QFN package, and is specified to operate in the automotive -40°C to +125°C temperature range.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .