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首页 > 产品 > Sub 1GHz 无线通信芯片 > A7339
A7339
产品选择指南
| General Description |
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A7339 is a high performance and low cost sub 1GHz (433M / 868M / 915MHz) transmitter. With on chip fractional-N synthesizer, this device supports frequency hopping system in data rate (on-air) from 2Kbps up to 250Kbps. Additional device features such as built-in 64 bytes TX FIFO, CRC (CCITT CRC-16 or CRC-DNP), FEC (7, 4) Hamming code, Machester encoding and SPI interface are used to simplify system development and cost. In addition to FIFO mode, A7339 also supports direct mode with TX data clock. All features make this device easy to be used together with a low cost MCU (micro-controller). For packet handling, A7339 has built-in 64-bytes TX FIFO (could be extended to 256 bytes) for data buffering and burst transmission, thermal sensor for monitoring relative temperature, one channel 8-bits ADC. Those functions are very easy to use while developing a wireless system. All features are integrated in a small QFN 4X4 20 pins package. A7339’s data rate is up to 250Kbps programmed by 3-wire or 4-wire SPI. For power saving, A7339 supports deep sleep mode, sleep mode, idle mode, and standby mode. For easy-to-use, A7339 has a unique SPI command set called Strobe command that are used to control A7339’s state machine and registers. Based on Strobe commands, from power saving, TX delivery, frequency hopping to auto calibrations, MCU only needs to control A7339’s registers and to send Strobe commands via SPI. In addition, A7339 has two general purpose I/O pins (GIO1 and CKO) to inform MCU its status so that MCU could either use polling or interrupt scheme to do radio control. Interface between MCU and A7339 is digital, it leads a simple way to develop a wireless system as well as transmission status. |
Small size (QFN4 X4, 20 pins).
Support 433/868/915 MHz band.
Support FSK/GFSK modulation.
Programmable data rate from 2kbps to 250kbps.
Deep sleep current (TBD).
Sleep current (1.5 uA).
TX current (78mA @ 17.5 dBm, 868MHz)
TX current (73mA @ 18.8 dBm, 433.92MHz)
Fractional-N PLL.
Programmable RF output power -20dBm ~ 19dBm.
On chip regulator, supports input voltage 1.8 ~ 3.6V.
Easy to use
Support 3-wire or 4-wire SPI.
Unique Strobe command via SPI.
Change frequency channel by ONE register setting.
Auto Calibrations.
Auto FEC by (7, 4) Hamming code.
Auto Manchester encoding.
Data Whitening for packet encryption.
64 bytes TX FIFO.
Dynamic FIFO Length
Easy FIFO / Segment FIFO / FIFO Extension (up to 256 bytes).
Support low cost crystal (12 / 16 MHz).
Support low accuracy crystal within ± 50 ppm.
Support crystal sharing (1 / 2 / 4 / 8MHz) to MCU.
Built-in thermal sensor to monitor relative temperature.
Built-in 1 channel 8-bits ADC.
Built-in Battery Detector.
Support 433/868/915 MHz band.
Support FSK/GFSK modulation.
Programmable data rate from 2kbps to 250kbps.
Deep sleep current (TBD).
Sleep current (1.5 uA).
TX current (78mA @ 17.5 dBm, 868MHz)
TX current (73mA @ 18.8 dBm, 433.92MHz)
Fractional-N PLL.
Programmable RF output power -20dBm ~ 19dBm.
On chip regulator, supports input voltage 1.8 ~ 3.6V.
Easy to use
Support 3-wire or 4-wire SPI.
Unique Strobe command via SPI.
Change frequency channel by ONE register setting.
Auto Calibrations.
Auto FEC by (7, 4) Hamming code.
Auto Manchester encoding.
Data Whitening for packet encryption.
64 bytes TX FIFO.
Dynamic FIFO Length
Easy FIFO / Segment FIFO / FIFO Extension (up to 256 bytes).
Support low cost crystal (12 / 16 MHz).
Support low accuracy crystal within ± 50 ppm.
Support crystal sharing (1 / 2 / 4 / 8MHz) to MCU.
Built-in thermal sensor to monitor relative temperature.
Built-in 1 channel 8-bits ADC.
Built-in Battery Detector.
Wireless sensor networks
Industrial monitoring and control
Wireless alarm and security system
Wireless ISM band data communication
Remote control
Home and building automation
Industrial monitoring and control
Wireless alarm and security system
Wireless ISM band data communication
Remote control
Home and building automation
Datasheet
Application Note
Reference circuit design (Module)
Reference code
Evaluation kit (EK)
Development Kit (DK)
Production test tool
*Please contact the agents or sales for more details
Application Note
Reference circuit design (Module)
Reference code
Evaluation kit (EK)
Development Kit (DK)
Production test tool
*Please contact the agents or sales for more details
