Difference and application of cc2590, cc2591 and cc2592

summary

CC2590, CC2591 and CC2592 are three 2.4G PA chips for   band launched by TI at different times. These three devices are a cost-effective and high-performance RF front-end for low-power and low-voltage 2.4GHz wireless applications. The difference between them is that the transmission gain is different and the peripheral circuit is slightly different.

CC2590, CC2591 and CC2592 device is a range extender for all cc25xx 2.4GHz low-power RF front transceivers and system on chip products of Texas Instruments (TI). In order to increase the link budget, the CC2590, CC2591 and CC2592 front provides a RF power amplifier that can increase the output power and an LNA with a low noise system to improve the receiver sensitivity. The cc2592 device provides a very small size, high output power RF design, which uses a 4mm x 4mm square flat leadless (QFN) - 16 package. The CC2590, CC2591 and CC2592 device includes PA, LNA, switch, RF matching and unbalanced transformer required for simple design of high-performance wireless applications.

Chip function comparison

Test environment: TC = 25 ° C, VDD = 3.0 V, FRF = 2440 MHz

Circuit comparison

CC2590

CC2590 peripheral circuit is simple, the RF interface adopts differential mode, and the logic control interface can be directly connected to the IO port of MCU for control.

CC2590 control logic diagram is as follows:

CC2590 application circuit diagram is as follows:

CC2591

The circuits of cc2591 and cc2590 are similar. The peripheral circuit is simple. The RF interface adopts differential mode. The control interface can be directly connected to the IO port of MCU for control.

The control logic diagram is as follows:

CC2591 simple application circuit diagram of cc2591 is as follows:

CC2592

The peripheral circuit of cc2592 is simpler. The RF interface adopts differential mode. The control interface can be directly connected to the IO port of MCU.

The control logic diagram is as follows:

CC2592 simple application circuit diagram of cc2592 is as follows:

Application range comparison

CC2590, cc2591 and cc2592 all integrate PA and LNA, and support ti's CC Series RF ICs; However, cc2590 and cc2591 support cc24xx, cc25xx and cc26xx, while cc2592 can only support cc25xx and cc26xx.

The transmit gain is similar to the receive gain, and cc2591 is similar to cc2592. The transmission gain of cc2590 is low.

The performance of CC2538 dongle and CC2530 module developed with CC2592 is better than that of CC2591.

summary

1. CC2590, cc2591 and cc2592 are 2.4G RF power amplifiers for ISM, which can be used for Bluetooth, ZigBee, 2.4G FSK, etc.

2. For chip selection, since the gain of cc2590 is 14dbm, if the transmission distance is required to be long, cc2591 and cc2592 are adopted; If the distance requirement is not high and the power consumption is high, cc2590 is adopted. For new design, please use cc2592, which is simpler and easier to debug than cc2591.

3. CC2591 is more easily damaged by static electricity in actual use. Therefore, please use cc2592 in the new design.