Amp ed RF Technology BT43 datasheet

BT43 Datasheet

Preliminary

Amp’ed RF Technology, Inc.

Jan 16, 2013

BT43LT Product Specification

11.6mm x 13.5mm

Description

Our micro-sized Bluetooth module, with
integrated antenna, is the smallest form factor
available providing a complete RF platform. The
BT43 is supports both Bluetooth Classic and Low

BT43 Features
Bluetooth features

 FCC &Bluetooth licensed radio
 Bluetooth v4.0
 Class 1 radio
 Range up to 80m LOS
 1Mbps data throughput
 128-bit encryption security

Hardware configuration

 Cortex-M3 microprocessor up to 72MHz
 128K bytes Flash memory
 20K bytes RAM memory

Energy, version v4.0.
The BT43 is a surface mount PCB module that

provides fully embedded, ready to use Bluetooth
wireless technology. Our standard abSerial and
Amp’edUP Stack are pre-flashed into the
integrated flash memory, supporting the SPP
profile. Other popular Bluetooth profiles, such as
OBEX, are also available.

Customized firmware for peripheral device
interaction, power optimization, security, and
other proprietary features may be supported and
can be ordered pre-loaded and configured.

 UART, up to 2M baud
 SPI and I2C interfaces
 7 general purpose I/O
 4x12-bit A/D inputs
 1 LPO input

Embedded software

 Amp’edUP dual mode Bluetooth stack: BT

Classic and BT Low Energy

 abSerial, AT command set
 SDK, Software Development Kit (Optional)
 BlueGuard, data encryption software (Optional)
 Mobile application software (Optional)

Additional documentation

 abSerial User Guide
 abSerial Reference Guide
 abSerial Configuration Guide

Jan 16, 2013

3

Table of Contents

1 Software Architecture

1.1 Lower Layer Stack

 Bluetooth v4.0, Classic and Low Energy
 Device power modes: active, sleep and deep sleep
 Wake on Bluetooth feature optimized power consumption of host CPU
 Authentication and encryption
 Encryption key length from 8 to 128 bits
 Persistent FLASH memory for BD Address and user parameter storage
 All ACL packet types.
 Bluetooth test modes per Bluetooth specification
 802.11b/g/n co-existence: AFH
 Vendor specific HCI commands to support device configuration and certification test modes

1.2 Upper Layer Stack: Amp’ed UP

 SPP, GAP, ATT, GATT
 RFComm, SDP, and L2CAP

1.3 HCI Interface

 Bluetooth v4.0 specification compliant
 HCI UART transport layer (H4)

1.4 AT Command Set: abSerial

 Please see abSerial Reference Guide for details

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4

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5

Rating

Min

Typical

Max

Unit

Operating Temperature Range

-40 - 85

°C

Supply Voltage VIN

2.1

2.5

3.6

Volts

Signal Pin Voltage

-

2.1

-

Volts

RF Frequency

2400 - 2483.5

MHz

Rating

Min

Typical

Max

Unit

Storage temperature range

-55 - +150

°C

Supply voltage VIN

-0.3 - +5.0

Volts

I/O pin voltage VIO

-0.3 - +5.5

Volts

RF input power

- - -5

dBm

Standard CPU Mode, 8 MHz

 UART supports up to 115 Kbps
 Data throughput up to 200 Kbps
 abSerial v1.5 (installed firmware)
 Shallow Sleep enabled

Modes (Typical Power Consumption)

Avg

Unit

ACL data 115K Baud UART at max throughput (Master)

17.5

mA

ACL data 115K Baud UART at max throughput (Slave)

19.5

mA

Connection, no data traffic, master

5.2

mA

Connection, no data traffic, slave

7.4

mA

Connection, 375ms sniff, slave (external LPO required)

590

µA

Standby, without deep sleep

5.2

mA

Standby, with deep sleep, no external LPO

1.7

mA

Standby, with deep sleep, with external LPO

140

uA

Page/Inquiry Scan, with deep sleep, no external LPO

2.6

mA

Page/Inquiry Scan, with deep sleep, with external LPO

720

µA

BLE Advertising, 1.28s, non-connectable, with external LPO

195

µA

BLE Advertising, 1.28s, discoverable, with external LPO

215

µA

Bluetooth power down / CPU standby

11

μA

2 Hardware Specifications

General Conditions (VIN= 2.5V and 25°C)

2.1 Recommended Operating Conditions

2.2 Absolute Maximum Ratings

2.3 Current Consumption

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6

Parameters

Conditions

Typical

Unit

Antenna load

50

ohm

Radio Receiver

Sensitivity level

BER < .001

with DH5

-92

dBm

Maximum usable level

BER < .001

with DH1

0

dBm

Input VSWR

2.5:1

Radio Transmitter

Maximum output power

50 Ω load

+9

dBm

Initial Carrier Frequency Tolerance

0 kHz

20 dB Bandwidth for modulated carrier

935

kHz

Symbol

Parameter

Min

Max

Unit

Conditions

VIL

Low-Level Input Voltage

-

0.6

Volts

VIN, 2.1V

VIH

High-Level Input Voltage

1.4 - Volts

VIN, 2.1V

VOL

Low-Level Output Voltage

-

0.4

Volts

VIN, 2.1V

VOH

High-Level Output Voltage

1.8 - Volts

VIN, 2.1V

IOL

Low –Level Output Current

-

4.0

mA

VOL = 0.4 V

IOH

High-Level Output Current

-

4.0

mA

VOH = 1.8V

RPU

Pull-up Resistor

80

120

KΩ

Resistor Turned On

RPD

Pull-down Resistor

80

120

KΩ

Resistor Turned On

2.4 Selected RF Characteristics

2.5 I/O Operating Characteristics

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7

Name

Type

Pin #

Description

ALT Function

5V Tolerant

Initial State

UART Interface

RXD

I

13

Receive data

Y

TXD

O

14

Transmit data

Y

RTS

O

12

Request to send (active low)

Y

CTS

I

11

Clear to send (active low)

Y

Reserved

BOOT 0

I

9

Reserved

Power and Ground

Vin 8

Vin

GND

7

GND

Reset

RESETN

I

10

Reset input (active low for 5 ms);

2.5V max

LPO

LPO

I

15

Low power clock input

System CLK

SYSCLK

I

16

System clock input

Antenna

Antenna

O

18

GPS Antenna

GPIO – General Purpose Input/Output

GPIO [1]

I/O

1

General Purpose Input/Output

SPI MISO

Y

Input pull down

GPIO [2]

I/O

2

General Purpose Input/Output

SPI

MOSI/I2S_SD

Y

Floating

GPIO [3]

I/O

3

General Purpose Input/Output

SPI SCLK/

I2S_SCK

Y

Input pull down

GPIO [4]

I/O

4

General Purpose Input/Output

SPI SS/I2S_WS

Y

Input pull down

GPIO [5]

I/O

5

General Purpose Input/Output

Y

Input pull down

GPIO [6]

I/O

6

General Purpose Input/Output

ADC1

Y

Input pull down

GPIO [7]

I/O

17

General Purpose Input/Output

ADC2

Y

Input pull down

2.6 Pin Assignment

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8

531.5 mil

(13.5 mm)

456.7 mil

(11.6 mm)

1 GPIO1

2 GPIO2

3 GPIO3

4 GPIO4

5 GPIO5

6 GPIO6

7 GND

TXD 14

RXD 13

RTS 12

CTS 11

RESET 10

BOOT0 9

VIN 8

18 GPS ANT

GPIO7 17

SYSCLK 16

LPO 15

55 mil

(1.40 mm)

296.5 mil

(7.5 mm)

471.5 mil

(12 mm)

31.2 mil

(0.8 mm)

40 mil

(1 mm)

59 mil

(1.5 mm)

2.7 Pin Placement Diagram (Top View)

2.8 Layout Drawing

Size: 11.6 mm x 13.5 mm x 2.2 mm (height)

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9

3 Module Block Diagram

4 Hardware Design

Amp’ed RF modules support UART, USB, SPI, and GPIO hardware interfaces. Please note that the

usage of these interfaces is dependent upon the firmware that is loaded into the module, and is
beyond the scope of this document. The AT command interface uses the main UART by default.

Notes

 All unused pins should be left floating; do not ground.
 All GND pins must be well grounded.
 The area around the antenna should be free of any ground planes, power planes, trace routings,

or metal for at least 6 mm in all directions.

 Traces should not be routed underneath the module.

4.1 Module Reflow Installation

The BT43 is a surface mount Bluetooth module supplied on a 16 pin, 6-layer PCB. The final
assembly recommended reflow profiles are:

For RoHS/Pb-free applications, Sn96.5/Ag3.0/Cu0.5 solder is recommended.

 Maximum peak temperature of 230° - 240°C (below 250°C).
 Maximum rise and fall slope after liquidous of < 2°C/second.
 Maximum rise and fall slope after liquidous of < 3°C/second.
 Maximum time at liquidous of 40 – 80 seconds.

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10

Connection to Host Device

4.2 GPIO Interface

All GPIOs are capable of sinking and sourcing 4mA of I/O current.

4.3 UART Interface

The UART is compatible with the 16550 industry standard. Four signals are provided with the UART
interface. The TXD and RXD pins are used for data while the CTS and RTS pins are used for flow
control.

Typical RS232 Circuit

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11

4.4 PCB Layout Guidelines

4.5 Reset Circuit

Two types of system reset circuits are detailed below.

4.5.1 External Reset Circuit:

Note: R

ranges from 30K ohm to 50K ohm internally.

PU

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12

13.5

11.6

1 GPIO1

2 GPIO2

3 GPIO3

4 GPIO4

5 GPIO5

6 GPIO6

7 GND

TXD 14

RXD 13

RTS 12

CTS 11

RESET 10

BOOT0 9

VIN 8

18 GPS ANT

17 GPIO7

16 SYSCLK

15 LPO

LPO Parameters:

Frequency: 32.768 KHz
Tolerance: 150 ppm
Voltage Levels:

Low: 0.5 V
High: 1.8 V

Input Capacitance: 2.5 pF maximum

Configurations:

See configuration guide:
UseExtLPO
AllowSniff

Ext 32.768 KHz Clock Input (LPO)

4.5.2 Internal Reset Circuit:

Notes:

- R

- R

ranges from 30K ohm to 50K ohm internally.

PU

should be from 1K ohm to 10K ohm

RST

4.6 External LPO Input Circuit

An optional low power oscillator input may be added to allow deep sleep and sniff modes.

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13

5 Regulatory Compliance

This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry Canada.
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.

Cet dispositif est conforme à la norme CNR-210 d'Industrie Canada applicable aux appareils radio
exempts de licence. Son fonctionnement est sujet aux deux conditions suivantes:
(1) le dispositif ne doit pas produire de brouillage préjudiciable, et (2) ce dispositif doit accepter
tout brouillage reçu, y compris un brouillage susceptible susceptible de provoquer fonctionnment
indésirable.

The radiated output power of the device is far below the FCC radio frequency exposure limits.
Nevertheless, the device shall be used in such a manner that the potential for human contact
during normal operation is minimized.

Modifications or changes to this equipment not expressly approved by Amp’ed RF Technology

may void the user’s authority to operate this equipment.

This Class B digital apparatus complies with Canadian ICES-003.
Cetappareilnumérique de la classe B estconforme à la norme NMB-003 du Canada.

The modular transmitter must be equipped with either a permanently affixed label or must be
capable of electronically displaying its FCC identification number

(A) If using a permanently affixed label, the modular transmitter must be labeled with its own FCC
identification number, and, 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: X3ZBTMOD7” or “Contains FCC ID:
X3ZBTMOD7.”

(B) If the modular transmitter uses an electronic display of the FCC identification number, the
information must be readily accessible and visible on the modular transmitter or on the device in
which it is installed. If the module is installed inside another device, then the outside of the device
into which the module is installed must display a label referring to the enclosed module. This

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14

Part Name

Description

BT43-LT

Standard version

Data

Revision

Description

30 Oct 2012

1

First release

16 Jan 2013

1.1

Updated power consumption table

exterior label can use wording such as the following:“Contains FCC certified transmitter
module(s).”

6 Ordering Information

7 Revision History

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