High-power RF amplifier
17 September 2014
Analogue, Mixed Signal, LSI
Microchip’s latest 2,4 GHz high-power amplifier – the SST12CP21 – offers ultra-low EVM (error vector magnitude) and current consumption for 256-QAM and IEEE 802.11n systems.
It delivers high linear output power of up to 23 dBm at 1,75% dynamic EVM, with MCS9 HT 40 MHz bandwidth modulation at 5 V and 320 mA current consumption.
Additionally, the chip delivers 25 dBm linear power at 3% EVM with only 350 mA current consumption for 802.11g/n applications. This performance extends the range of 802.11b/g/n WLAN and MIMO systems, while consuming low current at the maximum 256-QAM data rate. The SST12CP21 is also spectrum mask compliant up to 28 dBm for 802.11b/g communication.
Board space is reduced by the small 3 x 3 x 0,55 mm, 16-pin QFN package that matches a popular pin-out. This amplifier also features 50 Ω on-chip input match and simple output match, which is easy to use and reduces board size. Additionally, the integrated linear power detector provides accurate output power control over temperature and 2-to-1 output mismatch.
For more information contact Shane Padayachee, Avnet Kopp, +27 (0)11 319 8600, shane.padayachee@avnet.eu, www.avnet.co.za
Further reading:
High-speed PIN diode
Altron Arrow
Analogue, Mixed Signal, LSI
Vishay’s new high-speed Silicon PIN diode is able to detect both visible and near infra-red radiation over a wide spectrum range from 350 to 1100 nm.
Read more...
Analogue front end for sensor measurements
Electrocomp
Analogue, Mixed Signal, LSI
The NJU9103 AFE from Nisshinbo is a tiny analogue front end, with a 16-bit resolution ADC and up to 512 x signal amplification from the programmable gain amplifier.
Read more...
Single-channel software configurable I/O
Altron Arrow
Analogue, Mixed Signal, LSI
These use cases of the AD74115H include analogue output and input, digital output and input, resistance temperature detector (RTD), and thermocouple measurement capability.
Read more...
Current-sense amplifier with PWM rejection
Altron Arrow
Analogue, Mixed Signal, LSI
Analog Devices’ AD8410A is a high voltage, high bandwidth current-sense amplifier that features an initial gain of 20 V/V and a 2,2 MHz bandwidth.
Read more...
Combining a LPF and ADC driver for a 20 Vp-p signal
Altron Arrow
Analogue, Mixed Signal, LSI
A mixed-signal ADC driver circuit’s optimum performance depends on multiple variables: the driver’s settling time, the RC filter’s time constant, driving impedance, and the ADC sampling capacitor’s kickback current, all interact during acquisition time and contribute towards sampling errors.
Read more...
Pressure sensor with NextNav certification
EBV Electrolink
Analogue, Mixed Signal, LSI
STMicroelectronics’ LPS22DF pressure sensor has received a NextNav certification, which guarantees performance and reliability for geolocation and other types of applications.
Read more...
Reference design for Raspberry Pi analogue I/O
Analogue, Mixed Signal, LSI
Analogue Devices has published a reference design for ±10 V analogue input and ±15 V analogue output for Raspberry Pi platforms.
Read more...
Multi-zone distance sensor with 90° field of view
Avnet Silica
Analogue, Mixed Signal, LSI
STMicroelectronics has revealed a new FlightSense multi-zone distance sensor, with 90° field of view, to bring lifelike situational awareness to applications like home automation, computers, robots, and smart equipment.
Read more...
Six-axis IMU with Qvar sensing channel
Altron Arrow
Analogue, Mixed Signal, LSI
The LSM6DSV16X from STMicroelectronics is a high-performance, low-power six-axis IMU, featuring a three-axis digital accelerometer and a three-axis digital gyroscope.
Read more...
Bidirectional current-sense amplifier with PWM
RS South Africa
Analogue, Mixed Signal, LSI
The MAX49925 from Analogue Devices is a bidirectional current-sense amplifier (CSA) with an input common-mode range that extends from -40 to 76 V, making it suitable for 48 V HEV applications where there are large automotive transients.
Read more...
printer friendly version