Ublox NINA-B4 Series, System Integration Manual, Page: 8 / 61

NINA-B4 series - System integration manual
UBX-19052230 - R09 Functional description Page 8 of 61
C1-Public
1.3 Block diagrams
Block diagrams of the NINA-B40 and NINA-B41 module designs are shown in Figure 1 and Figure 2 .
1.3.1 NINA-B40
A block diagram of the NINA-B40 open-cpu module design showing the alternative U.FL connector
(B400), antenna pin (B401), and PCB trace antenna (B406) solutions is shown in
Figure 1 .
• NINA-B400 modules include a U.FL connector for connecting an external antenna. The module size
is 10 x 15 x 2.2 mm.
• NINA-B401 modules include an ANT pad on the footprint for connecting an external antenna. The
module size is 10 x 11.6 x 2.2 mm.
• NINA-B406 module support an internal PCB trace antenna using antenna technology from Proant
AB. The module size is 10 x 15 x 2.2 mm.
Figure 1: NINA-B40 series block diagram
DC/DC and LDO regulators
512 kB flash
Bluetooth LE
baseband
IO
b
uf
fer
s
A
rm
®
C
or
te
x®
-M4
wi
th
FP
U
VCC_IO (1.7 – 3.6 V)
VCC (1.7 – 3.6 V)
32 MHz
Reset
2x UART
SPI
GPIO
1.3 V
I2C
PWM
I2S
ADC and
comparator
Analog
Passive NFC tag
NFC
128 kB
RAM
32.768 kHz
RTC, timers
and counters
Nordic nRF52833
USB device
USB 2.0
QDEC
PDM
(NINA-B406)
PCB trace antenna
(NINA-B400)
U.FL antenna connector
(NINA-B401)
Antenna pin
System
power
PLL PLL
RF
NINA-B40