BCM4390DKWBGT Datasheet, PDF (38/78 Pages) Cypress Semiconductor – WICED™ Wi-Fi IEEE 802.11 b/g/n SoC with Embedded Application Processor

BCM4390 Advance Data Sheet
Transmit Path
Transmit Path
Baseband data is modulated and upconverted to the 2.4 GHz ISM band, respectively. Linear on-chip power
amplifiers are included, which are capable of delivering high output powers while meeting IEEE 802.11 b/g/n
specifications without the need for external PAs. When using the internal PAs, closed-loop output power
control is completely integrated.
Calibration
The BCM4390 features dynamic and automatic on-chip calibration to continually compensate for temperature
and process variations across components. These calibration routines are performed periodically in the course
of normal radio operation. Examples of some of the automatic calibration algorithms are baseband filter
calibration for optimum transmit and receive performance, and LOFT calibration for carrier leakage reduction.
In addition, I/Q Calibration, R Calibration, and VCO Calibration are performed on-chip. No per-board calibration
is required in manufacturing test, which helps to minimize the test time and cost in large volume production.
BROADCOM ®
February 5, 2014 • 4390-DS103-R
WICED Wi-Fi IEEE 802.11 SoC w/Embedded App Processor
Page 37
BROADCOM CONFIDENTIAL