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Index > Product > Sub 1GHz Short Range Devices > A7328
A7328
Selection Guide
| General Description |
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A7328 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 2Mbps. 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, A7328 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, A7328 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 16 pins package. A7328’s data rate is up to 2Mbps programmed by 3-wire or 4-wire SPI.For power saving, A7328 supports deep sleep mode, sleep mode, idle mode, and standby mode. For easy-to-use, A7328 has a unique SPI command set called Strobe command that are used to control A7328’s state machine and registers. Based on Strobe commands, from power saving, TX delivery, frequency hopping to auto calibrations, MCU only needs to control A7328’s registers and to send Strobe commands via SPI. In addition, A7328 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 A7328 is digital, it leads a simple way to develop a wireless system as well as transmission status. |
Small size (QFN4 X4, 16 pins).
Support 433/868/915 MHz band.
Support FSK/GFSK modulation.
Programmable data rate from 2kbps to 2Mbps.
Deelp sleep current (TBD).
Sleep current (1.5 uA).
TX current (35mA @ 10 dBm, 915MHz)
TX current (32mA @ 10 dBm, 433.92MHz)
On-Chip VCO and Fractional-N PLL.
Programmable RF output power -20dBm ~ 10dBm.
On chip regulator, supports input voltage 2.2 ~ 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 (range 0.3 V ~ 1.5 V).
Built-in Battery Detector.
Support 433/868/915 MHz band.
Support FSK/GFSK modulation.
Programmable data rate from 2kbps to 2Mbps.
Deelp sleep current (TBD).
Sleep current (1.5 uA).
TX current (35mA @ 10 dBm, 915MHz)
TX current (32mA @ 10 dBm, 433.92MHz)
On-Chip VCO and Fractional-N PLL.
Programmable RF output power -20dBm ~ 10dBm.
On chip regulator, supports input voltage 2.2 ~ 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 (range 0.3 V ~ 1.5 V).
Built-in Battery Detector.
ISM band Communication System ■ Wireless audio/vedio streaming
Remote Control ■ Wireless Toy and Gaming
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Remote Control ■ Wireless Toy and Gaming
Wireless Home Automation ■ Wireless Alarm and Security
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
