Nxp Semiconductors FRDMKW41Z User Manual
FRDM-
KW ) Use ’s Guide
Page 10 of 11
Draft
• E te al se ial flash e o fo OTAP suppo t.
• Co
o se so —six-axis sensor with integrated linear accelerometer and magnetometer
4.2 Functional description
The FRDM-KW41Z board is built around NXP MKW41Z SoC in a 48-pin LGA package. It features an IEEE
Std. 802.15.4 and BLE 2.4 GHz radio frequency transceiver and a Kinetis family ultra-low-power, mixed-
signal ARM Cortex-M0+ MCU in a single package. This board is intended as a simple evaluation
platform and as a building block for application development. The four-layer board provides the
MKW41Z SoC with its required RF circuitry, 32 MHz reference oscillator crystal, and power supply with
a DC-DC converter including Bypass, Buck, and Boost modes. The layout for this base-level functionality
can be used as a reference layout for your target board. This figure shows a simple functional block
diagram:
Std. 802.15.4 and BLE 2.4 GHz radio frequency transceiver and a Kinetis family ultra-low-power, mixed-
signal ARM Cortex-M0+ MCU in a single package. This board is intended as a simple evaluation
platform and as a building block for application development. The four-layer board provides the
MKW41Z SoC with its required RF circuitry, 32 MHz reference oscillator crystal, and power supply with
a DC-DC converter including Bypass, Buck, and Boost modes. The layout for this base-level functionality
can be used as a reference layout for your target board. This figure shows a simple functional block
diagram:
Figure 4: FRDM-KW41Z block diagram.
4.2.1 RF performance and considerations
The FRDM-
KW ) oa d’s i teg ated t a s ei e i ludes a W o i al output po e PA ith
internal Voltage-Controlled Oscillator (VCO), integrated transmit/receive switch, on-board power
supply regulation, and full spread-spectrum encoding and decoding. The main specifications of the
MKW41Z SoC are:
supply regulation, and full spread-spectrum encoding and decoding. The main specifications of the
MKW41Z SoC are:
• No i al output po e is set to dB .
• P og a
a le output po e a ges f o -30 dBm to +3.5 dBm at the SMA (no harmonic trap).
• T pi al se siti it is -100 dBm (@1 % PER for 25 °C) at the SMA (802.15.4).
• T pi al se siti it is -96 dBm (@1 % PER for 25 °C) at the SMA (BLE).