Dusun DSM-05D User manual

Zhejiang Dusun Electron Co., Ltd
User Manual
Product Name: BLE Cloud Module
Main Model: DSM-05D
Series Model: DSM-05D-IPEX
Revision History
Specification Sect. Update Description By
Rev Date
1.0 2021-12-30 New version release Alpha
Approvals
Organization Name Title Date
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
1 Introduction....................................................................................................................................3
1.1 Purpose& Description.........................................................................................................3
1.2 Product Feature Summary...................................................................................................3
1.3 Scenario...............................................................................................................................3
2 Mechanical Requirement ...............................................................................................................4
2.1 Drawing...............................................................................................................................4
2.2 Dimensions..........................................................................................................................4
2.3 Pin Definition......................................................................................................................4
3 Electrical parameters......................................................................................................................6
3.1 Absolute electrical parameters ............................................................................................6
3.2 Working conditions.............................................................................................................6
3.3 Current consumption during constant transmission and receiving......................................6
4 RF features.....................................................................................................................................8
4.1 Basic RF feature..................................................................................................................8
4.2 TX performance (Performance during constant transmission)............................................8
4.3 RX performance (RX sensitivity) .......................................................................................8
5 Antenna..........................................................................................................................................9
5.1 Antenna type .......................................................................................................................9
5.2 Antenna interference reduction ...........................................................................................9
6 Production instructions ................................................................................................................10
6.1 Recommended oven temperature curve............................................................................11
6.2 Storage conditions.............................................................................................................12
7 MOQ and packing........................................................................................................................13
8 FCC..............................................................................................................................................14
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
1Introduction
1.1 Purpose& Description
DSM-05D is a low power-consuming embedded BT module developed By Dusun. It
consists of the highly integrated wireless radio processor chip,
EFR32BG21A020F768IM32-B, and several peripherals, with a built-in BLE protocol
stack and robust library functions.
This data terminal device is embedded with the high-performance 32-bit 80 MHz
ARM Cortex®-M33 CPU with DSP instructions and floating point unit for efficient
signal processing, 768 KB flash memory, 64 KB RAM data memory, and robust
peripheral resources. It is mainly used for BLE coordinator device to support BLE 5.1
protocol stack.
1.2 Product Feature Summary
•High-performance 32-bit 80 MHz ARM Cortex®-M33 with DSP instructions
and floating point unit for efficient signal processing
•Up to 768kB Flash programming memory
•Up to 64kB RAM data memory
•Working voltage: 1.71 V to 3.8 V
•BLE operating feature
Bluetooth Mesh supported
Working channel: 0~39 @2.402 GHz to 2.480 GHz, with an air interface,
rate of 1Mbps
•Dimension: 17 x 22 x 2.8 mm
•Working temperature: –40°C to +85°C
•Certification CE, FCC, SRRC
1.3 Scenario
•Intelligent Building
•Intelligent Home And Household Applications
•Industrial Wireless Control
•Intelligent Public Traffic
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
2Mechanical Requirement
2.1 Drawing
2.2 Dimensions
DSM-05D provides two rows of pins(2 * 14) with the pin pitch of 1.27±0.1mm
Dimensions: 17±0.35 mm (W) x 22±0.35 mm (L) x 2.8±0.15 mm (H).
2.3 Pin Definition
Pin
Number
Symbol IO Type Function
1 GND P Power supply reference ground pin
2 ANT RF RF signal input/output port, which corresponds to ANT of IC
3 GND P Power supply reference ground pin
4 NC Not connect
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
5 PA0 I/O Corresponding to PA0 of IC
6 PC5 I/O Corresponding to PC5 of IC
7 PC4 I/O Corresponding to PC4 of IC
8 PA3 I/O Corresponding to PA3 of IC
9 PA4 I/O Corresponding to PA4 of IC
10 PC1 I/O Corresponding to PC1 of IC
11 PC0 I/O Corresponding to PC0 of IC
12 PD4 I/O Corresponding to PD4 of IC
13 PD3 I/O Corresponding to PD3 of IC
14 PD2 I/O Corresponding to PD2 of IC
15 NC Not connect
16 NC Not connect
17 PB0 I/O Corresponding to PB0 of IC
18 PB1 I/O Corresponding to PB1 of IC
19 NC Not connect
20 GND P Power supply reference ground pin
21 VCC P Power supply pin (3.3V)
22 RX0 I Corresponding to internal RXD0 of IC
23 TX0 O Corresponding to internal TXD0 of IC
24 SWDIO I/O Corresponding to internal SWDIO of IC
25 SWCLK I/O Corresponding to PF2 of IC
26 PC3 I/O Corresponding to PF3 of IC
27 PC2 I/O Not connect
28 nRESET I Hardware reset pin, which is at a high level by default and is
active at a low level
•Pindicates power supply pins, I/O indicates input/output pins
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
3Electrical parameters
3.1 Absolute electrical parameters
Parameter Description Typical
value
Minimum
value
Maximum
value
Unit
Ts Storage
temperature
-50 105 ℃
VCC
Power supply
voltage
1.71 3.8 V
Static electricity voltage
(human body model)
TAMB-25℃- KV
Static electricity voltage
(machine model)
TAMB-25℃- KV
3.2 Working conditions
Parameter Description Minimum
value
Maximum
value
Typical
Value
Unit
Ta Working
temperature
-40 125 - ℃
VCC
Power supply
voltage
1.71 3.8 3.3 V
VIL I/O low-level input - I0VDD*0.3 V
VIH I/O high-level
input
I0VDD*0.7 - - V
VOL I/O low-level
output
- I0VDD*0.2 - V
VOH I/O high-level
output
I0VDD*0.8 - - V
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
4RF features
4.1 Basic RF feature
Parameter Description
Frequency band 2.402~2.480GHz
Wireless technology BLE
Data transmission rate 1Mbps max
Antenna port IPEX interface
4.2 TX performance (Performance during constant transmission)
Parameter Minimum
value
Typical
value
Maximum
value Unit
Maximum output power - -5dBm
Minimum output power - 4.32 - dBm
Output power adjustment step - 0.5 dBm
Output spectrum adjacent-channel
rejection ratio - -47 - dBc
Frequency error -15 - 15 ppm
4.3 RX performance (RX sensitivity)
Parameter Minimum
value
Typical
value
Maximum
value Unit
PER<1%, RX sensitivity(BLE 250Kbps) -95 -94 -93 dBm
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot. www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
5Antenna
5.1 Antenna type
This product uses IPEX interface connect to stick antenna.
5.2 Antenna interference reduction
To ensure optimal RF performance, it is recommended that the antenna be at least
15 mm away from other metal parts. If metal materials are wrapped around the
antenna, the wireless signals will be reduced greatly, deteriorating the RF
performance.
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
6Production instructions
1. Use an SMT placement machine to mount components to the stamp hole
module that DUSUN produces within 24 hours after the module is unpacked
and the firmware is burned. If not, vacuum packs the module again. Bake the
module before mounting components to the module.
•SMT placement equipment:
Reflow soldering machine
Automated optical inspection (AOI) equipment
Nozzle with a 6 mm to 8 mm diameter
•Baking equipment:
Cabinet oven
Anti-static heat-resistant trays
Anti-static heat-resistant gloves
2. Storage conditions for a delivered module are as follows:
•The moisture-proof bag is placed in an environment where the temperature is
below 30℃and the relative humidity is lower than 70%.
•The shelf life of a dry-packaged product is six months from the date when the
product is packaged and sealed.
•The package contains a humidity indicator card (HIC).
3. Bake a module based on HIC status as follows when you unpack the module
package:
•If the 30%, 40%, and 50% circles are blue, bake the module for 2 consecutive
hours.
•If the 30% circle is pink, bake the module for 4 consecutive hours.
•If the 30% and 40% circles are pink, bake the module for 6 consecutive hours.
•If the 30%, 40%, and 50% circles are pink, bake the module for 12 consecutive
hours.
4. Baking settings:
•Baking temperature: 125±5℃
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com

Zhejiang Dusun Electron Co., Ltd
•Alarm temperature: 130℃
•SMT placement ready temperature after natural cooling: < 36℃
•Number of drying times: 1
•Rebaking condition: The module is not soldered within 12 hours after baking.
5. Do not use SMT to process modules that have been unpacked for over three
months.
Electroless nickel immersion gold (ENIG) is used for the PCBs. If the solder pads
are exposed to the air for over three months, they will be oxidized severely and
dry joints or solder skips may occur. Dusun is not liable for such problems and
consequences.
6. Before SMT placement, take electrostatic discharge (ESD) protective measures.
7. To reduce the reflow defect rate, draw 10% of the products for visual inspection
and AOI before first SMT placement to determine a proper oven temperature
and component placement method. Draw 5 to 10 modules every hour from
subsequent batches for visual inspection and AOI.
6.1 Recommended oven temperature curve
Perform SMT placement based on the following reflow oven temperature curve.
The highest temperature is 245℃.
Based on the IPC/JEDEC standard, perform reflow soldering on a module at most
twice.
Zhejiang Dusun Electron Co., Ltd Floor 8, Building A, Wantong Center
Tel: [phone] 8810480 Hangzhou, China
Website: www.dusuniot.www.dusunremotes.com www.dusunlock.com