u-blox NINA-B4 Series - NINA-B41 Block Diagram

NINA-B4 series - System integration manual
UBX-19052230 - R06 Functional description Page 8 of 45
C1-Public
1.3.2 NINA-B41
A block diagram of the NINA-B4 u-connect module design showing the alternative U.FL connector
(B410), antenna pin (B411), and PCB trace antenna (B416) solutions is shown in Figure 2.
☞ NINA-B410 modules support a U.FL connector to accommodate an external antenna. The module
size is 10 x 15 x 2.2 mm.
☞ NINA-B411 modules have a footprint arrangement that includes an ANT pad for connecting an
external antenna. The module size is 10 x 11.6 x 2.2 mm.
☞ NINA-B416 modules support an internal PCB trace antenna using antenna technology from
Proant AB. The module size is 10 x 15 x 2.2 mm.
Figure 2: NINA-B41 series block diagram
DC/DC and LDO regulators
512 kB flash
Bluetooth LE
baseband
IO buffers
Arm® Cortex®-M4
with FPU
PLL
VCC_IO (1.7
– 3.6 V)
VCC (1.7
– 3.6 V)
32 MHz
Reset
2x UART
GPIO
1.3 V
System
power
ADC and
comparator
Passive NFC tag
NFC
128 kB
RAM
PLL
32.768 kHz
RTC, timers
and counters
RF
Nordic Semiconductor
nRF52833
USB device
(NINA-B416)
PCB trace antenna
(NINA-B410)
U.FL antenna connector
(NINA-B411)
Antenna pin