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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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
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To determine if an errata sheet exists for a particular device, please check with one of the following:
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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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