HANSONG HSBT3008-IA Bluetooth Module Instruction Manual

: June 5, 2024
: HANSONG

Table of Contents

HANSONG HSBT3008-IA Bluetooth Module
Pin view
Pin Assignment
Interfaces
Reset
Battery Charger
Power supply
General Specifications
**Layout Notes
Dimension
Reflow temperature
FCC Statement
- IC Statement
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HANSONG HSBT3008-IA Bluetooth Module

Pin view

Pin Assignment

Terminal	Pin Name	Pin Type	Description
1.	GND	GND	Common Ground
2.	AIO_0	Bidirectional	Analog programmable input line 0
3.	CS	Bidirectional with weak pull-down	Programmable input/output line 4.

Alternative function:

■ SPI_CS#: chip select for Debug SPI, active low

■ I2S1_WS: I2S1 word select

4.| MISO| Bidirectional with weak pull-down| Programmable input/output line 3. Alternative function:

■ SPI_MISO: Debug SPI data output

■ I2S1_SD_OUT: I2S1 synchronous data output

5.| SPI_PCM| Input with

weak pulldown

| SPI/I2S select input:

■ 0 = I2S/PIO interface

■ 1 = SPI

6.| MOSI| Bidirectional with weak pull-down| Programmable input/output line 2. Alternative function:

■ SPI_MOSI: Debug SPI data input

■ I2S1_SD_IN: I2S1 synchronous data input

■ SPDIF_IN: SPDIF input

7.| CLK| Bidirectional with weak pull-down| Programmable input/output line 5. Alternative function:

■ SPI_CLK: Debug SPI clock

■ I2S1_SCK: I2S1 synchronous data clock

8.| RST#| Input with strong

pull-up

| Reset if low. Pull low for minimum 5 ms to cause a reset.
9.| PIO_16| Bidirectional with

strong

pull-up

| Programmable input/output line 16. Alternative function:

■ UART_RTS: UART request to send, active

low

10.| PIO_17| Bidirectional with

strong

pull-down

| Programmable input/output line 17. Alternative function:

■ UART_CTS: UART clear to send, active

low

11.| LED2| Bidirectional| Open-drain output
12.| LED1| Bidirectional| Open-drain output
13.| LED0| Bidirectional| Open-drain output
14.| POWER_EN| input| A high input (tolerant to VBAT voltages)
| | | enables the on-chip regulators
---|---|---|---
15.| VBAT| Power in| VBAT 3.3V—4.2V
16.| GND| |
17.| 3V3/1V8| Power in| 3V3/1V8 TO Flash and IO VDD
18.| 1.8V_SMPS| Power out| 1.8V_SMPS out
19.| GND| GND| Common Ground
20.| VBUS| Power in| Charger input.

Typically connected to USB VBUS.

21.| CHG_EXT| output| External battery charger transistor base control when using external charger boost.

Otherwise leave unconnected.

with weak pull-down

| Programmable input/output line 21.
---|---|---|---
35.| PIO_18| Bidirectional with weak

pull-down

Interfaces

USB Interface
HSBT3008 has a full-speed (12 Mbps) USB interface for communicating with other compatible digital devices.
The USB interface on HSBT3008 acts as a USB peripheral, responding to requests from a master host controller.
HSBT3008 contains internal USB termination resistors and requires no external resistors. HSBT3008 supports the Universal Serial Bus Specification, Revision v2.0 (USB v2.0 Specification), supports USB standard charger detection, and fully supports the USB Battery Charging Specification v1.2. As well as describing USB basics and architecture, the application note describes:

Power distribution for high and low bus-powered configurations
Power distribution for self-powered configuration, which includes USB VBUS monitoring
USB enumeration
Electrical design guidelines for the power supply and data lines, as well as PCB tracks and the effects of ferrite beads
USB suspend support
Battery charging from USB, which describes dead battery provision, charge currents, charging in suspend modes, and USB VBUS voltage consideration
USB termination when the interface is not in use
Internal modules, certification, and non-specification compliant operation

UART Interface
HSBT3008 has a UART serial interface that provides a simple mechanism for communicating with other serial devices using the RS232 protocol, including for test and debugging. The UART interface is multiplexed with PIOs and other functions, and hardware flow control is optional. When HSBT3008 is connected to another digital device, UART_RX and UART_TX transfer data between the 2 devices. The remaining 2 signals, UART_CTS and UART_RTS, implement optional RS232 hardware flow control where both are active low indicators. UART configuration parameters, such as baud rate and packet format, are set using the HSBT3008 firmware.

SPI Interface
HSBT3008 provides a debug SPI interface for programming, configuring (PS Keys) and debugging the HSBT3008. Access to this interface is required in production. Ensure the 4 SPI signals and the SPI/PCM# line are brought out to either test points or a header. To use the SPI interface, the SPI/PCM# line requires the option of being pulled high externally.

I2C Interface
The HSBT3008 supports an I2C interface for I/O port expansion. The default assignment of the I2C interface onto the PIOs on the HSBT3008 is:

PIO[0] is the I2C interface SCL line (AMP_I2C_SCL)
PIO[1] is the I2C interface SDA line (AMP_I2C_SDA)
Alternatively, the I2C interface can be assigned to two PIOs from PIO[9:0] using PSKEY_I2C_SCL_PIO and PSKEY_I2C_SDA_PIO.
NOTE The I2C interface requires external pull-up resistors. Ensure that external pull-up resistors are suitably sized for the I2C interface speed and PCB track capacitance.

LED Drivers
HSBT3008 includes a 3-pad PWM LED driver for driving RGB LEDs for producing a wide range of colors. All LEDs are controlled by the application.
The terminals are open-drain outputs, so the LED must be connected from a positive supply rail to the pad in series with a current-limiting resistor.
Figure 7-1 LED equivalent circuit
From Figure 7-1 it is possible to derive Equation 7-1 to calculate ILED. If a known value of current is required through the LED to give a specific luminous intensity, then the value of RLED is calculated.

Equation 7-1 LED current
NOTE The supply domain for LED[2:0], VDD_PADS_2, or VDD_PADS_1, must remain powered for LED functions to operate.

Audio interfaces

Dual I²S outputs
I²S input, SPDIF input (uncompressed PCM only)
USB audio
Stereo audio ADC with line input, stereo audio DAC
Supported sample rates of 8, 11.025, 16, 22.05, 32, 44.1, and 48kHz

Reset

HSBT3008 is reset from several sources:

RST# pin
Power-on reset
USB charger attach reset
Software configured watchdog timer
The RST# pin is an active low reset and is internally filtered using the internal low-frequency clock oscillator. Recommends applying RST# for a period

5ms.
At reset the digital I/O pins are set to inputs for bidirectional pins and outputs are set to tristate.

Automatic Reset Protection
HSBT3008 includes an automatic reset protection circuit that restarts the HSBT3008 when an unexpected reset occurs, for example, ESD strike or lowering of RST#. This reset protection circuit automatically restarts the HSBT3008 and enables the application to restore the previous operations.
NOTE If RST# is held low for > 2.4 s and VCHG is not applied, HSBT3008 turns off. A rising edge on VREGENABLE or VCHG is then required to power on HSBT3008.

Battery Charger

The battery charger hardware is controlled by the on-chip application. The battery charger has 5 modes:

Disabled
Trickle charge
Fast charge
Standby: fully charged or float charge
Error: charging input voltage, VCHG, is too low
Transitions between the trickle charge, fast charge and standby modes are triggered by changes in battery voltage and charger current.
Table 10-1 Battery charger operating modes determined by battery voltage and charger current

Power supply

The system have two power supply mode: Mode1: Single 3.3V only supply.
For improving the noise, recommend adding one 220Uf capacitor on the power supply

If the HSBT3008 is powered with an external 3.3 V supply connected to the VBAT line, Power_EN must be driven high after the IC has powered up otherwise the device may not initialize properly.

Mode2. Single 5V only supply.
A USB dongle is only powered when it is plugged into a USB port and does not need a switch to control the power.
POWER_EN should be left unconnected as the USB supply connected to the VCHG input will enable the IC correctly.

General Specifications

Absolute Maximum Ratings:

Ratings	Min.	Max.	Unit
Storage Temperature	-40	+105	℃
Supply Voltage (VBUS)	-0.4	6.50	V
Supply Voltage (POWER_EN)	-0.4	4.40	V
Supply Voltage (LED[2:0])	-0.4	4.40	V
Supply Voltage (PIO_POWER)	-0.4	3.60	V

Recommended Operating Condition: Recommended Operating Condition:

Ratings	Min	Typ	Max	Unit
Operating Temperature range	-40	20	+85	℃
Supply Voltage (VBAT)	2.50	3.70	4.40	V
Supply Voltage (VBUS)	4.75/3.10	5.00	6.50	V
Supply Voltage (POWER_EN)	0	3.70	4.40	V
Supply Voltage (LED[2:0])	–	3.70	4.40	V
Supply Voltage (PIO_POWER)*	1.70	1.80	3.60	V

Regulator Enable

POWER_EN,Switching Threshold	Min	Typ	Max	Unit
Rising threshold	–	–	1.0	V

Battery Charger

Battery Charger	Min	Type	Max	Unit
Input voltage, VCHG, 4.20 V float setting	4.75 / 3.10a	5.00	6.50	V
Input voltage, VCHG, 4.35 V float setting	4.90 / 3.10b	5.00	6.50	V
Trickle	Charge	Mode	Min	Unit
---	---	---	---	---

Charge current Itrickle , as percentage of fast

charge current

| 8| 10| 12| V
Vfast rising threshold| –| 2.9| –| V
Vfast rising threshold trim step size| –| 0.1| –| V
Vfast falling threshold| –| 2.8| –| V
Fast Charge Mode| MIn| Typ| Max| Unit
---|---|---|---|---
Charge current during constant current mode, Ifast| Maximum charge setting

(VCHG – VBAT > 0.55 V)

| 194| 200| 206| mA
Minimum charge setting

(VCHG – VBAT > 0.55 V)

| –| 10| –| mA
Reduced headroom charge

current, as a percentage of Ifast

| (VCHG – VBAT < 0.55 V)| 50| –| 100| %
Charge current step size| –| 10| –| mA
V float threshold, 4.20 V| 4.16| 4.20| 4.24| V
V float threshold, 4.35 V| 4.31| 4.35| 4.39| V
Charge termination current Iterm, as percentage of Ifast| 7| 10| 20| %
Standby Mode| MIn| Typ| Max| Unit
---|---|---|---|---
Voltage hysteresis on VBAT, Vhyst| 100| –| 150| mV
Error Charge Mode| MIn| Typ| Max| Unit
---|---|---|---|---
Headroom(a) error rising threshold| –| 50| –| mV
External Charge Mode| MIn| Typ| Max| Unit
---|---|---|---|---
Fast charge current, Ifast| 200| –| 500| mA
Control current into CHG_EXT| 0| –| 20| mA
Voltage on CHG_EXT| 0| –| 6.50| V
External pass device hfe| –| 50| –| –
Sense voltage, between VBAT_SENSE

and VBAT at maximum current

| 195| 200| 205| mV

In the external mode, the battery charger meets all the previous charger electrical characteristics and the additional or superseded electrical characteristics are listed in this table.

LED Driver Pads

LED Driver Pads	Min	Typ	Max	Unit
Current, IPAD	High impedance state	–	–	5
Current sink state	–	–	10	mA
LED pad voltage, VPAD	IPAD = 10mA	–	–	0.55
VOL output logic level low(a)	–	0	–	V
VOH output logic level high(a)	–	0.8	–	V
VIL input logic level low	–	0	–	V
VIH input logic level high	–	0.8	–	V

LED output port is open-drain and requires a pull-up

**Layout Notes

**

A. If there is battery, metal, LCD, loudspeaker, etc. beside the module antenna, it is required to be at least 15mm away from the antenna
B. It is recommended to use star routing for the power supply line during layout, and ensure that the power supply linearity of the Bluetooth module is good, and the ground of BT is also available It must be separated from the ground of the operational amplifier, power amplifier, MCU, etc., and there shall be no other interference ground under BT
C. Do not walk around the antenna control line, power line, audio line, MIC and other interference lines
D. If there is a row base near the module antenna and the shell has metal iron mesh which has an impact on the signal, it is recommended to select a professional high-rise heater beneficial antenna

Dimension

Reflow temperature

Key features of the profile:

Initial Ramp=1-2.5C/sec to 175C equilibrium
Equilibrium time=60 to 80 seconds
Ramp to Maximum temperature (250 C)=3 C/sec Max
Time above liquidus temperature(217 C): 45 90 seconds
Device absolute maximum reflow temperature: 250C

FCC Statement

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 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.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference, and
this device must accept any interference received, including interference that may cause undesired operation.
Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

RF exposure warning
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a 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.

OEM Integration Instructions
This device is intended only for OEM integrators under the following conditions:
The module can be used to install in another host. The antenna(s) used for this transmitter must be installed to the provided separation distance of at least 20cm from all persons and
must not be co-located or operating in conjunction with any other antenna or transmitter. The module shall be only used with the integral antenna(s) that has been originally tested and certified with this module. As long as 3 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirement with this module installed (for example, digital device emission, PC peripheral requirements, etc.)

IC Statement

This device complies with Industry Canada license-exempt RSS standard(s). Operation is
subject to the following two conditions:

this device may not cause interference, and
this device must accept any interference, including interference that may cause undesired operation of the device.
Caution: Modifications to this product will void the user’s authority to operate this equipment.

RF exposure warning
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated in accordance with provided
instructions and the antenna(s) used for this transmitter must be installed 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.

This radio transmitter IC: 7756A-QCC3008 has been approved by Innovation, Science and Economic Development Canada to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. antenna type and gain:

Onboard PCB Antenna 1.14dBi,
External PCB Antenna 2.00dBi,
External Dipole Antenna 2.93dBi.
antenna impedance: 50Ω

OEM Integration Instructions
This device is intended only for OEM integrators under the following conditions:
The module can be used to install in another host. The antenna(s) used for this transmitter must be installed to the provided separation distance of at least 20cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.

The module shall be only used with the integral antenna(s) that has been originally tested and certified with this module. As long as 3 conditions above are met, further transmitter test will not be required.
However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirement with this module installed (for example, digital device emission, PC peripheral requirements, etc.)