User Manual

BM62/64
Preliminary
 2017 Microchip Technology Inc.
DS60001403C-Page 7
Table 1-1 provides the key features of the BM62/64
module.
TABLE 1-1: BM62/64 KEY FEATURES
Feature
BM62 CLASS 2
BM64 CLASS 2
BM64 CLASS 1
Application
Headset/Speaker
Multi-speaker/Soundbar
Stereo/mono
Stereo
Stereo
Stereo
Pin count
37
43
43
Dimensions (mm
2
)
15 x 29
15 x 32
15 x 32
PCB antenna
Yes
Yes
Yes
Tx power (typical)
2 dBm
2 dBm
15 dBm
Audio DAC output
2-channel
2-channel
2-channel
DAC (single-ended) SNR at 2.8V (dB)
-98
-98
-98
DAC (capless) SNR at 2.8V (dB)
-98
-98
-98
ADC SNR at 2.8V (dB)
-92
-92
-92
I
2
S digital output
No
Yes
Yes
Analog Auxiliary-Input
Yes
Yes
Yes
Mono microphone
1
1
1
External audio amplifier interface
Yes
Yes
Yes
UART
Yes
Yes
Yes
Full-speed USB 1.1
No
Yes
Yes
LED driver
2
2
2
Internal DC-DC step down regulator
Yes
Yes
Yes
DC 5V adapter input
Yes
Yes
Yes
Battery charger (350 mA max)
Yes
Yes
Yes
ADC for thermal charger protection
Yes
Yes
Yes
Under voltage protection (UVP)
Yes
Yes
Yes
GPIO
10
12
12
Button support
6
6
6
EEPROM
Yes
Yes
Yes
Customized voice prompt
8K Sampling Rate, Stored in EEPROM with approximately
800 bytes/second
Multitone
Yes
Yes
Yes
DSP functions (audio playback and voice call)
Yes
Yes
Yes
BLE
Yes
Yes
Yes
Bluetooth profiles
A2DP
1.3
1.3
1.3
AVRCP
1.6
1.6
1.6
HFP
1.6
1.6
1.6
HSP
1.2
1.2
1.2
SPP
1.2
1.2
1.2