User Manual

JN5148 High-Power USB Dongle (DR1131)
Reference Manual
JN-RM-2064 v1.0 © NXP Laboratories UK 2012 5
2 Hardware Overview
2.1 Dongle Layout
19mm
45mm
USB
JN5148
LEDS
HP Front End
LPC1343
Antenna
SPI Flash
LPC1343 Config
Connector
Figure 1: DR1131 Board Layout
2.2 Dongle Block Diagram
Timers
UART
12-bit ADC,
comparators
12-bit DACs,
temp sensor
SPI
RAM
128kB
128-bit AES
Encryption
Accelerator
2.4GHz
Radio
ROM
128kB
RISC CPU
Power
Management
XTAL
32.768 kHz
O-QPSK
Modem
IEEE802.15.4
MAC
Accelerator
512kB
Serial Flash
Memory
JN5148 chip
Integrated Antenna
32kHz ext Xtal
Sleep Counters
32-byte
OTP eFuse
Watchdog timer
Time of Flight
Engine
USB
LPC1343
Micro
XTAL
32 MHz
XTAL
12 MHz
SE2431L
Matching
2.3 LPC1343 Device
The LPC1343 device is connected to the USB connector and acts as an
interface between the PC and the JN5148 device. The LPC1343 will enumerate
on the PC as two devices:
1. A mass storage device used to program the Flash device for the JN5148
2. A virtual COM port connected directly to UART0 on the JN5148
2.4 JN5148 Device
The JN5148 circuit is based around the standard JN5148 reference design.