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首页 > 产品 > Sub 1GHz 无线通信芯片 > A7210
A7210
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| General Description |
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A7210 is a monolithic low-IF architecture CMOS OOK receiver with 1527 format decoder for wireless applications in the 315/433/868/915 ISM bands with learning mode support. A7210 incorporates a OOK baseband demodulator with the programmable data rate divider from up to 10Kbps. For a battery powered system, A7210 supports fast PLL settling time (120 us), Xtal settling time (1100 us) and on-chip Regulator settling time (850 us) to reduce average power consumption. The RF synthesizer contains a VCO and a low noise fractional-N PLL. The VCO frequency operates at to the wanted radio frequency to cover all RF band. A7210’s control registers are accessed via 3-wire or 4-wire SPI interface. Another one, via SPI as well, is the unique strobe command. A7210 can be controlled from power saving mode (deep sleep, sleep, idle, standby), PLL mode, and RX mode. In addition to SPI, the digital connection between A7210 and MCU is GIO1 (multi-function GPIO) to indicate A7210’s status so that MCU could use either polling or interrupt for radio control. Additional device features such as on-chip regulator, RSSI for clear channel assessment, a thermal sensor, low battery detector, carrier detect, preamble detect, AIF (Auto IF function), AFC (Auto Frequency compensation), Auto calibration (VCO, IF Filter), PLL/CLK Generator, on-chip compensated capacitors of Xtal loading. Overall, A7210’s highly integrated features and low current consumption offer a reduced BOM cost for a high performance ISM bands product. A7210 can be set to hardware mode in application without MCU. In hardware mode, learning mode decoder with 1527 format is support by using OOK demodulation. Up to 16 sets of code can be stored in external EEPROM by I2C interface. If only one code set is used, it can be saved in built-in OTP (one-time-programmable) memory. An LED indicator can show the status (paring, clear and normal mode). |
Small size QFN32 pins
Frequency band: 315/433/868/915 MHz.
OOK modulation.
Programmable data rate from 1Kbps to 10kbps
On chip regulator, supports input voltage 2 ~ 3.6 V.
Sleep current (<1.5uA).
Low Current Consumption
RX Current consumption (AGC Off) 434MHz: 3.8mA.
Supports low cost crystal 12.8MHz.
AGC (Auto Gain Control) for the wide RSSI dynamic range.
Programmable IF filter bandwidth (50KHz / 100KHz KHz).
RX sensitivity at 433.92MHz.
-109dBm at 10kbps in OOK mode
Easy to use
Support 3-wire SPI.
Unique Strobe command via SPI.
Auto Calibrations (VCO, IF Filter, RSSI).
Support hardware mode
Support 1527 decoder format
Learning mode with external EEPROM
Four decoder data output pin
LED indicator which show the IC status
Data output format is selectable (latch mode or continuous mode)
Frequency band: 315/433/868/915 MHz.
OOK modulation.
Programmable data rate from 1Kbps to 10kbps
On chip regulator, supports input voltage 2 ~ 3.6 V.
Sleep current (<1.5uA).
Low Current Consumption
RX Current consumption (AGC Off) 434MHz: 3.8mA.
Supports low cost crystal 12.8MHz.
AGC (Auto Gain Control) for the wide RSSI dynamic range.
Programmable IF filter bandwidth (50KHz / 100KHz KHz).
RX sensitivity at 433.92MHz.
-109dBm at 10kbps in OOK mode
Easy to use
Support 3-wire SPI.
Unique Strobe command via SPI.
Auto Calibrations (VCO, IF Filter, RSSI).
Support hardware mode
Support 1527 decoder format
Learning mode with external EEPROM
Four decoder data output pin
LED indicator which show the IC status
Data output format is selectable (latch mode or continuous mode)
ISM Band Data Communication
Wireless Remote Controller
RKE (Remote Keyless Entry)
Wireless Remote Controller
RKE (Remote Keyless Entry)
