FEASYCOM YB716-A Dual Mode Bluetooth Module Owner’s Manual

YB716-A Dual Mode Bluetooth Module

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Specifications:

• Type: YB1120-A dual-mode Bluetooth module
• Antenna Type: PCB type Antenna
• Antenna Gain: 0.85 dBi
• Antenna Impedance: 50
• Antenna Application: Fixed
• Min Separation Distance: 20 cm

Product Usage Instructions:

1. FCC Compliance:

It is essential to comply with FCC regulations regarding RF
exposure limits and antenna installation. Ensure a separation
distance of at least 20 cm from all persons when installing and
operating the device.

2. Antenna Information:

The module comes with a fixed PCB type antenna with a gain of
0.85 dBi and an impedance of 50. The antenna is permanently
attached and cannot be replaced.

3. Labeling Requirements:

Make sure that the exterior label on the final product housing
includes the model (YB1120-A) and FCC ID (2BKBY-YBZN1120) for
compliance.

4. Warning:

Avoid making changes or modifications to the unit as it could
void the user’s authority to operate the equipment.

5. Additional Testing:

The host product manufacturer is responsible for ensuring
compliance with FCC rules not covered by the modular transmitter
grant. Perform necessary testing with the modular transmitter
installed to meet FCC requirements.

FAQ:

Q: Can the antenna on the module be replaced?

A: No, the antenna on the module is permanently attached and
cannot be replaced.

Q: What is the minimum separation distance required for RF

exposure compliance?

A: A separation distance of at least 20 cm must be maintained
between the device and users to comply with FCC RF exposure
limits.

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Requirement of FCC KDB 996369 D03 for module certification:
1.1 List of applicable FCC rules : The module complies with FCC Part 15.247.
1.2 Summarize the specific operational use conditions: The module has been certified for Fix/Mobile applications. The host product operating conditions must be such that there is a minimum separation distance of 20 cm (or possibly greater than 20 cm) between the antenna radiating structures and nearby persons. The host manufacturer is obligated to confirm the use conditions of the host product to ensure that distance specified in the instructions is met. In this case the host product is classified as either a mobile device or a fixed device for RF exposure purposes. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
1.3 Limited module procedures: Not applicable.
1.4 Trace antenna designs: Not applicable.
1.5 RF exposure considerations: This equipment complies with FCC’s and IC’s RF radiation exposure limits set forth for an uncontrolled environment. The antenna(s) used for this transmitter must be installed and operated to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter. Installers must ensure that 20cm separation distance will be maintained between the device and users.
Note: the OEM product manuals must include a statement in order to alert the users of FCC RF exposure compliance.

1.6 Antennas:

Type

Gain

Impedance

Application

PCB type Antenna

0.85 dBi

50

Fixed

The antenna is permanently attached, can’t be replaced.

Min Separation 20 cm

1.7 Label and compliance information: 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.

Warning: Changes or modifications to this unit 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.

FCC Radiation Exposure Statement The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co- located for operating in conjunction with any other antenna or transmitter.

The system integrator must place an exterior label on the outside of the final product housing the YB1120-A Modules. Below is the contents that must be included on this label. OEM Labeling Requirements: NOTICE: The OEM must make sure that FCC labeling requirements are met. This includes a clearly visible exterior label on the outside of the final product housing that displays the contents shown in below:
ModelYB1120-A
Contains FCC ID 2BKBY-YBZN1120
1.8 Information on test modes and additional testing requirements: When testing host product, the host manufacture should follow FCC KDB Publication 996369 D04 Module Integration Guide for testing the host products. The host manufacturer may operate their product during the measurements. In setting up the configurations, if the pairing and call box options for testing does not work, then the host product manufacturer should coordinate with the module manufacturer for access to test mode software. For wireless Bluetooth, the product under test is set into a link/association with a partnering Bluetooth device, as per the normal intended use of the product. To ease testing, the product under test is set to transmit at a high duty cycle, such as by sending a file or streaming some media content. Alternatively, a BT test set may be used. Simultaneously transmitting modules installed in the host should be all active.
1.9 Additional testing, Part 15 Subpart B disclaimer: The modular transmitter is only FCC authorized for the specific rule parts (FCC Part 15.247) list on the grant, and that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed when contains digital circuity
The host integrator installing this module into their product must ensure that the final composite product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation and should refer to guidance in KDB 996369.

YB1120-A dual-mode Bluetooth module
Product manual

Contents
1 Overview …………………………………………………………………… 4 1.1 Functional features ……………………………………………….4 1.2 Application field …………………………………………………… 4
2. Electrical characteristics ………………………………………………5 2.1 Basic characteristics ……………………………………………. 5 2.2 RF performance ………………………………………………….. 6 2.3 Audio features …………………………………………………….. 7 2.4 ESD protective performance …………………………………. 7
3. Hardware introduction ………………………………………………… 8 3.1 Functional block diagram ……………………………………… 8 3.2 Module size and pipe foot arrangement ………………….. 9 3.3 Definition of pipe feet …………………………………………. 10 3.4 Reference circuit ……………………………………………….. 12
4 The PCB design ……………………………………………………….. 13 4.1 Recommended disc size …………………………………….. 13 4.2 Module installation method …………………………………. 13 4.3 Model Description ……………………………………………… 14 4.4 PCB layout Notes ……………………………………………….14
5 The reflux parameters are recommended …………………….. 15

1 Overview
YB1120-A is a dual-mode audio Bluetooth module developed by Yibo Intelligent Company. It has a built-in Bluetooth audio protocol stack and various applications, which can easily realize the interconnection of users’ Bluetooth devices, data transmission, voice, music and other applications.
1.1 Functional features
Built-in 32-bit dual-core DSP, 640KB SRAM on-board Built-in dual-channel 24-bit audio DAC and 4-channel 24-bit audio ADC Built-in multi-band DRC limiter Built-in multi-band EQ configuration adjustment Support the audio DAC sampling rate from 8 kHz to 96 kHz Support the audio ADC sampling rate of 8 kHz to 48 kHz Support for MIC / LINE IN analog audio input Support for A2DP, AVCTP, HFP, AVDTP, AVRCP, SPP, I2CAP and other profiles Supports the UART communication Support for ADC analog signal input and PWM signal output Support for the Bluetooth broadcast function High-gain PCB onboard antenna Maximum + 10 dbm transmit power Comply with the Bluetooth V5.3+BR+EDR+BLE specification Stamp hole tube foot, welding is easy and reliable Ultra-small size: 13×27.2mm Flexible software platform for customized services
1.2 Application field
bluetooth speaker smart home A Bluetooth music repeater Car Bluetooth hands- free Health care Wireless POS machine Portable printer

2. Electrical characteristics 2.1 Basic characteristics

Parameter 3V3RF V BAT RX TSTR

Description

Min TYP Max Unit

RF front-end amplifier supply voltage

-0.3 3.3 3.6

V

power supply vol tage

-0.3 5 5.75

V

RX Input power

–

10

–

dBm

Storage temperature range

-40

–

125

°C

Table 1. Absolute maximum value

Parameter 3V3RF V BAT TOPR

Description

Min TYP Max Unit

RF front-end amplifier supply voltage

3

3.3 3.6

V

power supply vol tage

4.5

5

5.5

V

Operation temperature range

-40

–

85

°C

Table 2. Recommended working conditions

project 3V3RF VBAT

Description

Min TYP Max Unit

RF front-end amplifier supply voltage

150 250 350 mA

power supply voltage

100 150 200 mA

Table 3. Power consumption characteristics

Wireless standards

Bluetooth BR / EDR / LE

frequency range 2.402 GHz 2.480 GHz

transmitting power

10dBm

antenna

Onboard:, High-gain PCB onboard antenna

Table 4. Antenna characteristics

remarks

2.2 RF performance

Parameter

Min

Typ

Max

Unit

RF Transmit Power

10

dBm

RF Power Control Range

18.2

dB

20dB Bandwidth

950

KHz

In-band spurious Emissions

F=F0±1MHz F=F0±2MHz

-22

dBm

-51

dBm

BQB Test Mode

F=F0±3MHz

-55

dBm

RF_Tx Power=5dBm

F=F0+/-3MHz

-55

dBm

Table 5. RF emission characteristics

Test Conditions 25
VBAT=5V 3V3RF =3.3V
2441MHz

Parameter

Min

Typ

Max Unit

Sensitivity

-92

dBm

Co-channel Interference Rejection

10

dB

+1MHz

-4

dB

Adjacent Channel selectivity C/I

-1MHz +2MHz -2MHz

-3

dB

-39

dB

-33

dB

+3MHz

-45

dB

-3MHz

-28

dB

Table 6. RF receiving characteristics

Test Conditions 25
VBAT=5V 3V3RF =3.3V
2441MHz DH5

2.3 Audio features

Parameter Frequency Response
Output Swing THD+N S/N
Dynamic Range
Noise Floor

Mode

Min

Typ

Max

20

_

20K

Differential

Single-ended

_

Differential

_

Single-ended

_

Differential

Single-ended

_

Differential

_

Single-ended

_

Differential

_

Single-ended

1.7

860

_

-70

_

-70

_

105

99

_

105
98

10

_

10

Table 7. Audio DAC features

Unit Hz Vrms mVrms dB dB dB dB dB
dB
uVrms uVrms

Test Conditions
1KHz/0dB 10k ohm loading With A-Weighted Filter
1KHz/-60dB 10k ohm loading With A-Weighted Filter A-Weighted Filter

Parameter
Dynamic Range S/N
THD+N S/N
THD+N

Min

Typ

Max Unit

Test Conditions

Fsample=44. 1kHz,Gain=0dB

94

dB

Fin=1KHz 590mVrms

_

95

_

dB

Fsample=44. 1kHz,Gain=0dB

_

-75

_

dB

Fin=1KHz 590mVrms

76

dB

Fsample=44. 1kHz,Gain=18dB

_

-73

_

dB

Fin=1KHz 75mVrms

Table 8. Audio ADC features

2.4 ESD protective performance

Parameter

Typ.

Test pin

Reference standard

Human Body Mode

±4KV

All pins

JEDEC EIA/JESD22-A114

Machine Mode

±200V

All pins

JEDEC EIA/JESD22-A115

Charge Device Model

± 1KV

All pins

JEDEC EIA/JESD22-C101F

. Table 9. ESD protection characteristics

3. Hardware introduction 3.1 Functional block diagram
Figure 1. Block diagram of the YB7016-A module

3.2 Module size and pipe foot arrangement
Figure 2. YB 716-A module dimensions diagram (front) Figure 3. YB 716-A module thickness

3.3 Definition of pipe feet

Pin #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Name

Type

Description

UART_TX

I/O

Uart Data Output

UART_ RX

I/O

Uart Data In put

3V3RF

POWER

RF front-end amplifier supply

NC

–

GPIO3

I/O

General-purpose input/output

GPIO4

I/O

General-purpose input/output

GPIO5

I/O

General-purpose input/output

USB D M

I/O

USB Negative Data

USB D P

I/O

USB Positive Data

GPIO6

I/O

General-purpose input/output

GPIO7

I/O

General-purpose input/output

NC

–

GND

GND

Ground

GPIO8

I/O

General-purpose input/output

NC

–

GND

GND

Ground

AGND

GND

Audio analog ground

DACR

AO

Right channel audio output positive

DACL

AO

Left channel audio output positive

LINEIN_R

AI

Line in R

LINEIN_L

AI

Line in L

MIC IN_P

I/O

Microphone input positive

MIC IN_N

I/O

Microphone input negative

VBAT

POWER

System power supply

NC

–

GND

GND

Ground

. Table 10 Definition of YB1120-A tube feet

Figure 4. YB 716-A module tube pin diagram

3.4 Reference circuit
Figure 5. YB 716-A module reference circuit

4 The PCB design 4.1 Recommended disc size
Figure 6. YB1120-A package size reference
4.2 Module installation method
SMT surface mount installation.

4.3 Model Description
4.4 PCB layout Notes
Bluetooth works at the frequency of 2.4GHz, so the influence of various factors on wireless sending and receiving should be avoided. Attention should be paid to the following points:
1. The part of the product enclosure avoids metal, and if the enclosure is metal, an external antenna should be considered.
2. The internal metal screws of the product should be kept away from the RF part of the module.
3. The module should be placed around the motherboard, with the antenna part on the side or corner. Copper or wiring is not allowed in the motherboard area below the module antenna.

5 The reflux parameters are recommended
The reflux parameters can refer to the following settings:

Figure 6. Return recommendation curve

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

Recirculation zone (>217)

40-60S

Peak :240-260

Cooling zone

Ramp down rate :1/s Slope 4/s

Table 11. Recommended reflux parameters

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