How to select different chips of TI Sub-1GHz product line?Issuing time:2022-11-25 15:50 How to select different chips of TI Sub-1GHz product line?High performance transceiver series are recommended for new product design, including CC1120, CC1125 and CC1200. Both CC1120 and CC1125 support narrowband applications. The corresponding RF performance features high sensitivity and strong anti-interference performance. CC1200 is designed for high data rate transmission, and can operate stably at a data rate above 500 kbps. CC1125 has the most excellent RF performance and can meet the most stringent European specification ETSI EN 300 220 Category 1. Communication advantages of Sub-1GHz band1. Long distance Half of the frequencies provide twice the connection distance. The lower the frequency, the longer the connection distance. Therefore, low frequencies such as Sub-1 GHz can travel farther than higher frequencies. Sub-1GHz has better penetration than 2.4 GHz. The attenuation of signals passing through walls and other objects is less. Low frequencies can be better spread at "corners", which can improve coverage performance. 2. Reliability Avoid the already crowded frequency bands: Bluetooth is available in the 2.4 GHz frequency band ®、 ZigBee ® And Wi Fi ®； In contrast, the Sub-1GHz ISM frequency band is mostly used for connection with low duty cycle, so the possibility of mutual interference is low. Sub-1GHz solution can provide better narrowband interference protection through frequency hopping. 3. Low power consumption Compared with 2.4 GHz, the same connection distance Sub-1GHz uses lower transmission power. This makes Sub-1 GHz ideal for battery powered applications. It is suitable for low power consumption and low rate application scenarios. Very low power SOC communication schemeIn some applications of the Internet of Things, battery powered sensors and communication devices are required to obtain relevant data, which not only requires low power consumption, but also limits the size of devices. There is no doubt that there are applications and demand scenarios for single chip integration solutions. There are many existing WiFi+BT single chip solutions, but there are limited single chip solutions integrated with Sub-1 GHz. The following are the relevant solutions I found: Texas Instruments (TI) CC13xx series devices have extremely low active RF and microcontroller (MCU) current consumption. In addition to flexible low power consumption mode, they have excellent battery life and are suitable for battery powered remote operation and data acquisition applications. CC1310 device provides flexible ultra-low power RF transceiver and powerful 48MHz Cortex in the platform supporting multiple physical layers and RF standards ®- M3 microcontroller. Dedicated wireless controller (Cortex ®- M0) is used to process low-level RF protocol commands stored in ROM or RAM to ensure ultra-low power consumption and flexibility. CC1310 device has excellent RF sensitivity and stability, and can be selectively and blocked; Provide AES encryption algorithm. The CC1310 device is a highly integrated monolithic solution that integrates a complete RF system and an on-chip DC-DC converter. The sensor can be processed by a dedicated ultra low power autonomous MCU in an ultra low power consumption manner. The MCU can be configured to process analog and digital sensors, so the main MCU can maximize the sleep time. Performance of the chipARM Cortex-M3 processor frequency 48MHz 32KB/64KB/128KB programmable flash memory in the system 8KB cache static random access memory SRAM+20KB ultra-low leakage SRAM 16 bit ultra-low power sensor controller that can operate independently of the rest of the system, 2KB ultra-low leakage SRAM Support OTA Low power performance: Wide power supply voltage range: 1.8 to 3.8V RF power: RX: 5.4mA (nominal value of CC1101 is 15.6mA) TX (+10dBm): 13.4mA (CC1101 nominal is 28.8mA, CC1101 based on 0.18 μ m CMOS process) 48MHz MCU: 2.5mA (51 µ A/MHz) Sensor controller (24 MHz): 0.4mA+8.2 µ A/MHz The sensor controller wakes up once a second to perform a 12 bit ADC sampling: 0.95 µ A (stm32 1uA) Standby current: 0.7 µ A (RTC running, RAM and CPU holding) Closing current: 185nA Compared with CC1310, CC1350's RF core features 2.4GHZ transceiver compatible with Bluetooth BLE 4.2 standard, which is a dual wireless solution with low power consumption. The current consumption of low-power Bluetooth is 6.5mA when receiving and 10.2mA when sending at 0dB. In addition, CC1350 also supports long-distance Bluetooth and other communication protocols, with an output power of 9dBm, a reception sensitivity of - 87dBm (Long Range Mode), and a transmission speed of - 110dBm at 50kpbs. CC430=MSP430+C1101TI released Soc series at the end of 2008. There are 8 models of 64pin, 20MHz, 2-4k RAM, and 8-32K flash, which are used less and cost more. Compared with MCU+CC1101, the scheme has no obvious advantages. NRF9E5 SOC8051 core 32pin, support 4/8/12/16/20MHz crystal oscillator, 3 timers, 4 channels 10 bit ADC, support CRC- 100dBm RX receiving sensitivity,+10/6/- 2/- 10dBm TX output, supporting 433/868/915MHz band GFSK modulation, 50kbps 2.5µA power down mode 3mA active CPU at 16MHz 9mA TX at -10dBm 30mA TX at +10dBm 12.5mA RX |
