Kunshan EW-BLED-33 User manual

Kunshan Ether Huge Electronics Co.,Ltd
EW-BLED-33 BLES
Standard Module
Specification
V1.0
20210923
1

Kunshan Ether Huge Electronics Co.,Ltd
Rev. information
About this manual
《EW-Bled -33 Module Specification 》provides an introduction to the
basic functions of the EW-BLED-33 module, including the electrical
specifications, RADIO frequency performance, pin size, and reference
schematic design of the module. Readers can refer to this document for a
detailed understanding of the overall functional parameters of the
module.
Change of History
2
Rev.
Date
Change of history
Editor
V1.0
2021.9.23
Initial release
Tony

Kunshan Ether Huge Electronics Co.,Ltd
Table content
About this manual.........................................................................................................2
Change of history...........................................................................................................2
Table content................................................................................................................ 3
1. Profile ....................................................................................................................4
1.1 Features ................................................................................................................4
1.2 Scope of application.................................................................................................4
2. Electronic data...........................................................................................................5
3. Pins explanation.........................................................................................................7
3.1 Pins layout ............................................................................................................7
3.2 Pins definition..........................................................................................................8
4. Reference design........................................................................................................ 9
4.1 Reference schematic.................................................................................................9
4.2 Module profile size..................................................................................................10
4.3 Caution...................................................................................................................11
4.4 Reference PCB package...........................................................................................12
5. Reflow parameter recommendation.........................................................................13
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1.Profile
1.1 Features
The EW-Bled -33 is a small, low-cost Bluetooth BLE5.1standardized module developed by
Shanghai Electronics Way Co., Ltd.
The features of this module are as follows。
Using Freq chip fr8018h chip Built-in high performance32-bit MCU，512KB Flash，48KB RAM
Meet Bluetooth 5.1 standard, support 1 Mbps, 500 Kbps, 125 Kbps rate
Transmitting power: Maximum +10dBm (minimum to -20dbm)
Receiving sensitivity: The receiving sensitivity reaches -94dbm in 125Kbps mode
Support UART, SPI, I2C, I2S, ADC, PWM and other interfaces
Support FTMS protocol, can be customized according to customer communication protocol
Support true random number generator
Support master and slave multiple connections, up to 16 connections
■The module has passed BQB, SRRC, FCC certification
On-board high performance PCB antenna
Stamp hole pin, easy and reliable to weld
Ultra-small package：11.2x16mm
Ultra wide supply voltage：1.8V-4.3V
Working temperature：-40℃~ +105℃
Ew-bled-33 module only needs to connect VCC, GND, TX and Rx to complete the data transmission and
communication function. It can also be used according to
Customers need to customize specific communication protocols and customization functions in specific
application environments. After the module configuration is completed, the relevant software can be used
Test the function of communication data. Users conduct Bluetooth connection and communication test
through common mobile phone Bluetooth communication test tools. In addition,
Ew-bled-33 module can also be used as MCU in the fields of fitness equipment, small household
appliances, smart home and industrial control instruments;
Yiwei company has been engaged in the Bluetooth field for many years and has strong R & D strength. It
can easily realize the interconnection, data transmission and other applications of users' Bluetooth devices.
On the basis of ew-bled-33 standard module, our company can customize the Bluetooth module that
meets the customer's use specifications according to the customer's requirements, and provide
corresponding software and hardware support
1.2 Application scope
Fitness equipment: Treadmill, Fitness bike, Elliptical machine, etc；
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2.Electronic data
Absolute Maximum Ratings
Note：
The electrical characteristics listed are target specifications for reference only.
Some of the data may be updated based on actual test results。
The voltage values shown are based on GND in the module. Any voltage exceeding the
"maximum rating" may be applied to the device and cause permanent damage.
（Recommended Operating Conditions）
（Power Consumption）
5
Operation Mode
Average
Maximum
Unit
TX peek current(0 dB)
9
mA
RX peek current
12.8
mA
Deep sleep current(include
48K retention RAM)
12
μA
Power off
5
μA
Item
Symbol
Min
Typ.
Max
Unit
Supply Voltage
VCC
1.8
3.3
4.3
V
I/O Voltage
ALDO_OUT
2.1
2.9
3.5
V
Operating
Temperature
Topr
-20
-
85
ºC
Rating
Min
Max
Unit
Supply Voltage
VCC
1.8
4.3
V
I/O Voltage
ALDO_OUT
2.1
3.5
V
Storage
Temperature
Tstr
-20
85
ºC

Kunshan Ether Huge Electronics Co.,Ltd
（Audio CODEC）
6
Digital to Analogue Converter(Mono)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
-
-
-
20
Bits
Sampling frequency
The synchronized clock
8
48
kHz
SNR
(Signal to Noise Ratio)
Fin=1kHz
B/W=20Hz—20KHz
A-Weighted THD_N<0.01%
Fs(8K,16K,32K,44.1K,48K)
92
dB
Digital Gain
Digital Gain
-48
32
dB
Analogue Gain
Analog Gain Resolution =
0
-30
dB
Output voltage
VDDA=2.9V
1500
mV
Stopband attenuation
65
dB
Analog to Digital Converter(Mono)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Resolution
-
-
-
16
Bits
Sampling frequency
The synchronized clock
8
48
kHz
Signal to Noise Ratio
A-weighted
79
dBFS
W/O weighting
79
dBFS
Digital Gain
Digital Gain
-48
32
dB
Analogue Gain
Analog Gain Resolution =
0
30
dB

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3.
Pins definition
3. 1 Pins layout
Figure 3-1 Module pins diagram
Note：Figure 3-1 Pin functionality can be redefined by pin reuse
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3.2
Pins definition
8
PIN #
引脚名
类型
描述
1
PC7
DIO
SDA1/I2SDIN/PWM5_P/SSPDIN/UTXD0/UTXD1/SWDIO/P
DMDAT/PWM4_N
2
PC6
DIO
SCL1/I2SDOUT/PWM4_P/SSPDOUT/URXD0/URX
D1/SWTCK/PDMCLK/PWM5_N
3
PC5
DIO
SDA0/I2SFRM/PWM5_P/SSPCSN/UTXD0/UTXD1/
SWV/PDMDAT/PWM4_N
MCLK/PWM5
4
PC3
DIO
SDA1/I2SDIN/PWM3_P/SSPDIN/UTXD0/UTXD1/S
WV/PDMDAT/PWM2_N
5
PC2
DIO
SCL1/I2SDOUT/PWM2_P/SSPDOUT/URXD0/URX
D1/SWV/PDMCLK/PWM3_N
6
PC1
DIO
SDA0/I2SFRM/PWM1_P/SSPCSN/UTXD0/UTXD1/
SWV/PDMDAT/PWM0_N
7
PC0
DIO
SCL0/I2SCLK/PWM0_P/SSPCLK/URXD0/URXD1/S
WV/PDMCLK/PWM1_N
8
PD3
DIO
SDA1/I2SDIN/PWM3_P/SSPDIN/UTXD0/UTXD1/
WLANRX/PDMDAT/PWM2_N
9
PD2
DIO
SCL1/I2SDOUT/PWM2_P/SSPDOUT/URXD0/URX
D1/WLANTX/PDMCLK/PWM3_N
10
PD1
DIO
SDA0/I2SFRM/PWM1_P/SSPCSN/UTXD0/UTXD1/
BLERX/PDMDAT/PWM0_N
DAT/PWM4
11
PD0
DIO
SCL0/I2SCLK/PWM0_P/SSPCLK/URXD0/URXD1/B
LETX/PDMCLK/PWM1_N
12
PB4
DIO
SCL0/I2SCLK/PWM4_P/SSPCLK/URXD0/URXD1/
CLKOUT/PDMCLK/PWM5_N
13
PB6
DIO
SCL1/I2SDOUT/PWM2_P/SSPDOUT/URXD0/URX
D1/ANTCTL1/PDMCLK/PWM3_N
14
PB7
DIO
SDA1/I2SDIN/PWM3_P/SSPDIN/UTXD0/UTXD1/
CLKOUT/PDMDAT/PWM2_N
15
PB5
DIO
SDA0/I2SFRM/PWM5_P/SSPCSN/UTXD0/UTXD1/
ANTCTL0/PDMDAT/PWM4_N
16
PB1
DIO
SDA0/I2SFRM/PWM1_P/SSPCSN/UTXD0/UTXD1/
BLERX/PDMDAT/PWM0_N
17
PB2
DIO
SCL1/I2SDOUT/PWM2_P/SSPDOUT/URXD0/URX
D1/WLANTX/PDMCLK/PWM3_N
18
PB3
DIO
SDA1/I2SDIN/PWM3_P/SSPDIN/UTXD0/UTXD1/
WLANRX/PDMDAT/PWM2_N

Kunshan Ether Huge Electronics Co.,Ltd
9
19
PA3
DIO
SDA1/I2SDIN/PWM3_P/SSPDIN/UTXD0/UTXD1/
ANTCTL1/PDMDAT/PWM2_N
20
PA2
DIO
SCL1/I2SDOUT/PWM2_P/SSPDOUT/URXD0/URX
D1/ANTCTL0/PDMCLK/PWM3_N
21
PA1
DIO
SDA0/I2SFRM/PWM1_P/SSPCSN/UTXD0/UTXD1/
ANTCTL0/PDMDAT/PWM0_N
22
PA0
DIO
SCL0/I2SCLK/PWM0_P/SSPCLK/URXD0/URXD1/
CLKOUT/PDMCLK/PWM1_N
23
PA7
DIO
SDA1/I2SDIN/PWM1_P/SSPDIN/UTXD0/UTXD1/
ANTCTL0/PDMDAT/PWM0_N
24
PA6
DIO
SCL1/I2SDOUT/PWM0_P/SSPDOUT/URXD0/URX
D1/CLKOUT/PDMCLK/PWM1_N
25
PA4
DIO
SCL0/I2SCLK/PWM4_P/SSPCLK/URXD0/URXD1/
CLKOUT/PDMCLK/PWM5_N
26
PA5
DIO
SCL0/I2SCLK/PWM4_P/SSPCLK/URXD0/URXD1/
CLKOUT/PDMCLK/PWM5_N
27
GND
GND
Ground
28
ANT
AIO
RF input and output
29
GND
GND
Ground
30
AOUT_P
AO
Speaker output positive
31
AOUT_N
AO
Speaker output negative
32
RSTP
AI
Global reset (high active)
33
VCHR
PWR
Charger supply input
34
VBAT
PWR
Battery positive supply input
35
GND
GND
Ground
36
VDDIO
AO
Analog linear regulator output
37
PD7
DIO
SDA1/I2SDIN/PWM1_P/SSPDIN/UTXD0/UTXD1/
ANTCTL1/PDMDAT/PWM0_N/ADC3
38
PD6
DIO
SCL1/I2SDOUT/PWM0_P/SSPDOUT/URXD0/URX
D1/CLKOUT/PDMCLK/PWM1_N/ADC2
39
PD5
DIO
SDA0/I2SFRM/PWM5_P/SSPCSN/UTXD0/UTXD1/
ANTCTL0/PDMDAT/PWM4_N/ADC1
40
PD4
DIO
SCL0/I2SCLK/PWM4_P/SSPCLK/URXD0/URXD1/
ANTCTL0/PDMCLK/PWM5_N/ADC0

Kunshan Ether Huge Electronics Co.,Ltd
4.
Schematic
4.1
Reference schematic
Figure 4- 1
Reference schematic
Note：PA6, PA7 for communication business serial port, PA2, PA3 for firmware programming and
debugging serial port
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4.2
Module size
Figure4-1 Top View (Seen from Top) Bottom View (Seen from Bottom)
Figure 4-2 module thickness
Note： Shanghai Electronics Way Company reserves the right to select components from different suppliers
to realize the function of modules. All mechanical, electrical specifications and module certifications are
maintained. All dimensions are in mm (mm).
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Figure 4- 3:
Module design size
4.3
Attention
Bluetooth works at the frequency of 2.4ghz, so influences of various factors on wireless
transceiver should be avoided as far as possible. The following points should be noted：
Avoid using metal as part of the product housing surrounding the module. If the housing is metal,
consider using an external antenna。
The metal screws inside the product should be kept away from the RF part of the module。
To maximize RF performance, the user host board layout should follow the following
recommendations：
1) Antenna clearance area: there shall be no copper foil routing (package) directly below the
antenna area of the user's motherboard(Including power supply, ground and signal layer).
2) Module position: ideally, the module should be arranged in a corner of the user's
motherboard, PCB The antenna is located far from the motherboard End. This position minimizes the
clearance area of the antenna.
12
模块外形尺寸
Length (X)
18.10 ± 0.15 mm
Width (Y)
16.50± 0.15 mm
PCB 厚度
Height (H)
1.2 ± 0.05 mm
模块总厚度（PCB 厚度+最高元器件高度）
Height (H)
3.1 mm typical

Kunshan Ether Huge Electronics Co.,Ltd
4.4
reference
PCB pack
Figure 4- 5:
Reference package size
4.5 module photo
13

Kunshan Ether Huge Electronics Co.,Ltd
5.
Reflow parameter
Reflow parameter can reference below data：
Figure 5-1 Reflow curve
F
igure 5-1
Reflow recommendation data
14
Temperature range
Time
Key parameters
Preheat zone(<150℃)
60-120S
Ramp up rate:≤2S
Uniform temperature zone(150-200℃)
60-120S
Ramp up rate:<1S
Re-circulation zone(>217℃)
40-60S
Peak:240-260℃
Cooling zone
Ramp down rate:1℃/s≤Slope≤4℃/s

antenna specification
antenna size is 11.20mm*5.5mm From below
Specification.
Please refer to the chart below for PCB size of RF line terminal.

1) Antenna clearance area: there shall be no copper foil routing (package) directly below the
antenna area of the user's motherboard(Including power supply, ground and signal layer).
2) Module position: ideally, the module should be arranged in a corner of the user's motherboard,
PCB The antenna is located far from the motherboard End. This position minimizes the clearance
area of the antenna.

C1a is the antenna matching capacitance, which affects the signal strength. There is no need to
paste here
Antenna gain：0dBi

FCC Statement
FCC standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247
Trace antenna PCB antenna , Antenna gain 0dBi
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
We will retain control over the final installation of the modular such that compliance of the end product is
assured. In such cases, an operating condition on the limit modular approval for the module must be only
approved for use when installed in devices produced by a specific manufacturer. If any hardware modify or
RF control software modify will be made by host manufacturer, C2PC or new certificate should be apply to
get approval, if those change and modification made by host manufacturer not expressly approved by the
party responsible for compliance , then it is illegal.
FCC Radiation Exposure Statement
This modular complies with FCC RF radiation exposure limits set forth for an uncontrolled environment.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
If the FCC identification number is not visible when the module is installed inside another device, then the
outside of the device into which the module is installed must also display a label referring to the enclosed
module. This exterior label can use wording such as the following: “Contains Transmitter Module FCC ID:
2AXDJ-EWBLED33 Or Contains FCC ID: 2AXDJ-EWBLED33”
When the module is installed inside another device, the user manual of the host must contain below warning
statements;
1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that may cause undesired
operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turning the

equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
2. Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
The devices must be installed and used in strict accordance with the manufacturer's instructions as described
in the user documentation that comes with the product.
Any company of the host device which install this modular with modular approval should perform the test of
radiated & conducted emission and spurious emission,etc. according to FCC part 15C : 15.247 and 15.209 &
15.207 ,15B Class B requirement, Only if the test result comply with FCC part 15C : 15.247 and 15.209 &
15.207 ,15B Class B requirement，then the host can be sold legally.