Specifications

January 13, 2021
Page 14/31
Document Ref: isp_lora_DS4520_R7
Insight SiP – Green Side – 400 avenue Roumanille – BP 309 – 06906 Sophia-Antipolis Cedex – France – www.insightsip.com
LoRa / BLE MODULE
ISP4520
3. Pin Description
The module uses an LGA format. The pad layout follows the QFN Jedec standard for LGA parts. The NC
pads are to be connected to isolated metal pads on the application PCB for mechanical stability and
reliability (drop test).
Pin
Name
Pin function
Description
1
GND
Ground
Power Ground – Must be connected to ground on application PCB
2
P0_12
Digital I/O
nRF52 general purpose I/O pin
3
P0_10
NFC2
Digital I/O
NFC Input
nRF52 general purpose I/O pin
NFC antenna connection pin
4
P0_17
Digital I/O
nRF52 general purpose I/O pin
5
P0_07
Digital I/O
nRF52 general purpose I/O pin
6
P0_22
Digital I/O
nRF52 general purpose I/O pin
7
P0_09
NFC1
Digital I/O
NFC Input
nRF52 general purpose I/O pin
NFC antenna connection pin
8
P0_08
Digital I/O
nRF52 general purpose I/O pin
9
P0_13
Digital I/O
nRF52 general purpose I/O pin
10
P0_06
Digital I/O
nRF52 general purpose I/O pin
11
P0_05_AIN3
Digital I/O
Analog Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
12
P0_04_AIN2
Digital I/O
Analog Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
13
P0_03_AIN1
Digital I/O
Analog Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
14
GND
Ground
Power Ground – Must be connected to ground on application PCB
15
VDD
Power
External supply
16
P0_02_AIN0
Digital I/O Analog
Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
17
P0_31_AIN7
Digital I/O Analog
Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
18
P0_30_AIN6
Digital I/O Analog
Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
19
P0_29_AIN5
Digital I/O Analog
Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
20
P0_28_AIN4
Digital I/O Analog
Input
nRF52 general purpose I/O pin
SAADC / COMP / LPCOMP input
21
GND
Ground
Power Ground – Must be connected to ground on application PCB
22
GND
Ground
Power Ground – Must be connected to ground on application PCB
23
GND
Ground
Power Ground – Must be connected to ground on application PCB
24
LoRa_TR
RF I/O
LoRa RF I/O pin of the module
Should be connected to Pin 25 for normal operation
25
LoRa_ANT
RF I/O
Internal LoRa antenna RF I/O pin
Should be connected to Pin 24 for normal operation
26
GND
Ground
Power Ground – Must be connected to ground on application PCB
27
GND
Ground
Power Ground – Must be connected to ground on application PCB
28
GND
Ground
Power Ground – Must be connected to ground on application PCB
29
GND
Ground
Power Ground – Must be connected to ground on application PCB
30
GND
Ground
Power Ground – Must be connected to ground on application PCB