Dual RF Power Amplifier Linearizer (RFPAL)

The SC2200 belongs to the 4th-generation family of RF PA linearizers (RFPAL) that provides increased integration and functionality over the previous generations. The device is a dual-path linearizer that is a fully-adaptive, RFIN/RFOUT predistortion linearization solution optimized for a wide range of amplifiers, power levels, and communication protocols. It supports 2G to 4G standards (FDD and TDD) from 698MHz to 2700MHz as well as an expanded range of signal bandwidths from 60MHz down to 1.2MHz. The SC2200 accepts single-ended RF signals to eliminate baluns and features a mirrored pinout facilitating design of both paths. The device uses the PA output and input signals to adaptively generate an optimized correction function to minimize the PA’s distortion. Using RF-domain analog signal processing enables the SC2200 to operate over wide bandwidths and with very low power consumption. The dual linearizer is optimized for high-performance MIMO applications, including small cells, active antenna, and distributed antenna systems.

APPLICATIONS

* Amplifier: Class A/AB, Doherty

* Average PA Output Power Examples: Cellular Infrastructure: 27dBm to 40dBm

* BTS Amplifiers, RRH, Booster Amplifiers, Repeaters, Small Cells, Microcells, Picocells, DAS, AAS and MIMO Systems

* Cellular Infrastructure

* PA Process: LDMOS, GaN, HBT, GaAs and InGaP

* Single/Multicarrier, Multistandard: CDMA/EVDO, TD-SCDMA, WiMAX, WCDMA/HSDPA, LTE, and TD-LTE

* Wide Range of PAs and Output Power

* Ease of Use

* Integrated RFIN/RFOUT Solution

* Smaller Total System Form Factor (24mm x 26mm)

* Reduces System Power Consumption and OPEX

* Reduces BOM Costs and Total Volume

* Smaller Power Supply, Heat Sink, and Enclosure

* Lower Back-Off Reduces Transistor Costs

* Frequency Range: 698MHz–2700MHz

* Integrated Preamp and Single-Ended RF I/Os

* Single +1.8V Supply Voltage

* External Reference Clock Support:

* 10, 13, 15.36, 19.2, 20, 26, and 30.72MHz

* Packaged in 11mm x 11mm SAWN QFN Package

* Operating Case Temperature: -40°C to +100°C

* RoHS, Green, REACH, and ISO9001 Compliant

* Dual-Path RFIN/RFOUT Linearizer in CMOS SoC

* Fully Adaptive Correction

* Up to 28dB ACLR and 38dB IMD Improvement (1)

* 1.2MHz < BWSIG ≤ 60MHz

* Power Consumption:

* Duty-Cycled (10%) Feedback: 1500mW (Dual-Path)

* 100% Adaptation: 1.95W (Dual-Path)