BM62/64
Bluetooth
®
4.2 Stereo Audio Module
Features
• Qualified for Bluetooth v4.2 specifications
• Worldwide regulatory certifications are planned
• Supports HFP 1.6, HSP 1.2, A2DP 1.3, SPP 1.2,
AVRCP 1.6
• Supports Bluetooth (BR/EDR/BLE) specifications
(FW dependent)
• Stand-alone module with on-board PCB antenna
and Bluetooth stack
• Supports high resolution up to 24-bit, 96 kHz
audio data format
• Supports to connect two hosts with HFP/A2DP
profiles simultaneously
• Transparent UART mode for seamless serial data
over UART interface
• Supports virtual UART cable transport between
host MCU and smartphone applications by Blue-
tooth SPP or BLE link
• Easy to configure with Windows
®
GUI or directly
by external MCU
• Supports firmware field upgrade
• Supports 1 microphone
• Compact surface mount module:
- BM62: 29 x 15 x 2.5 mm
- BM64: 32 x 15 x 2.5 mm
• Castellated surface mount pads for easy and
reliable host PCB mounting
• RoHS compliant
• Ideal for portable battery operated devices
• Internal battery regulator circuitry
• Packet loss concealment (PLC)
• Supports Serial Copy Management System
(SCMS-T) content protection
FIGURE 1:
BM62 MODULE
FIGURE 2:
BM64 MODULE
RF/Analog
• Frequency spectrum: 2.402 GHz to 2.480 GHz
• Receive sensitivity: -90 dBm (2 Mbps EDR)
• Class 2 output power (+2 dBm typical) for BM62,
BM64 and Class 1 output power (+15 dBm typi-
cal) for BM64
DSP Audio Processing
• Supports 64 kbps A-Law,
-Law PCM format/
Continuous Variable Slope Delta (CVSD) Modula-
tion for SCO channel operation
• Supports 8/16 kHz noise suppression
• Supports 8/16 kHz echo cancellation
• SBC and optional AAC decoding
Audio Codec
•
•
•
•
SBC and optional AAC decoding
20-bit digital-to-analog (DAC) with 96 dB SNR
16-bit analog-to-digital (ADC) with 90 dB SNR
Up to 24-bit, 96 kHz I
2
S digital audio
2016 Microchip Technology Inc.
DS60001403A - Page 1
BM62/64
Peripherals
• Built-in lithium-ion and lithium-polymer battery
charger (up to 350 mA)
• Integrated 1.8V and 3V configurable switching
regulator and low-dropout (LDO)
• Built-in ADC for battery monitoring and voltage
sense
• Built-in ADC for charger thermal protection
• Built-in undervoltage protection (UVP)
• An AUX-In port for external audio input
• Two LED drivers
• Multiple I/O pins for control and status
Description
The BM62/64 Stereo Audio module is a fully qualified
Bluetooth 4.2 dual-mode module for designers to add
wireless audio and voice applications to their products.
The BM62/64 module is a Bluetooth Special Interest
Group (SIG) certified module that provides a complete
wireless solution with Bluetooth stack, integrated PCB
antenna, and worldwide radio certifications in a
compact surface-mount package.
The BM62/64 module has several SKUs. The BM62 is
a Class 2 device and the BM64 is available in both
Class 1 and Class 2 versions.
HCI Interface
• High-speed HCI-UART interface (supports up to
921,600 bps)
MAC/Baseband Processor
• Supports Bluetooth 4.2 dual mode (FW depen-
dent)
- BR/EDR transport for audio, voice, and SPP
data exchange
- BLE transport for proprietary transparent
service and ANCS data exchange
Operating Condition
• Operating voltage: 3.2V to 4.2V
• Operating temperature: -20°C to +70°C
Compliance
• Bluetooth SIG QDID: 83345 (BM62, BM64 Class
2) and 83336 (BM64 Class 1)
• Certifications planned for the United States
(FCC), Canada (IC), European Economic Area
(CE), Korea (KCC), Taiwan (NCC), Japan (JRF),
and China (SRRC)
Applications
• Soundbar and Subwoofer
• Bluetooth speaker
• Multi-speaker
DS60001403A - Page 2
2016 Microchip Technology Inc.
BM62/64
Table of Content
1.0 Device Overview ...................................................................................................................................................... 5
2.0 Audio ...................................................................................................................................................................... 15
3.0 Transceiver ............................................................................................................................................................ 19
4.0 Power Management Unit ....................................................................................................................................... 21
5.0 Application Information .......................................................................................................................................... 23
6.0 Printed Antenna Information .................................................................................................................................. 39
7.0 Physical Dimensions............................................................................................................................................... 43
8.0 Electrical Characteristics ........................................................................................................................................ 47
9.0 Soldering Recommendations ................................................................................................................................. 55
10.0 Ordering Information ............................................................................................................................................ 57
Appendix A: Certification Notices................................................................................................................................. 59
Appendix B: Revision History....................................................................................................................................... 65
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To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
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http://www.microchip.com
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When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are
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2016 Microchip Technology Inc.
DS60001403A - Page 3
BM62/64
NOTES:
DS60001403A - Page 4
2016 Microchip Technology Inc.
BM62/64
1.0
DEVICE OVERVIEW
The BM62 and BM64 Stereo Audio modules are built
around Microchip Technology IS2062 and IS2064
SoCs.
The IS2062/64 SoC integrates the Bluetooth 4.2 dual-
mode radio transceiver, Power Management Unit
(PMU), crystal and DSP. Users can configure the
BM62/64 module using the UI tool and DSP tool, a Win-
dows-based utility.
Figure 1-1
illustrates a typical
example of the BM62 module which is connected to an
external audio amplifier and the MCU.
FIGURE 1-1:
APPLICATION USING BM62 MODULE
Figure 1-2
illustrates a typical example of the Class 1
BM64 module which is connected to an external MCU
and a DSP/codec.
FIGURE 1-2:
APPLICATION USING BM64 MODULE
2016 Microchip Technology Inc.
DS60001403A - Page 5
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