BM90 _ BDTIC 中国领先电子元器件代理商

BM90

The BM90 multi-speaker stereo audio module is a compact, highly integrated module for Bluetooth v3.0 with Enhanced Data Rate 2.4GHz applications. This module is fully compliant with Bluetooth specification and completely backward-compatible with Bluetooth 2.0 or 1.2 systems. It incorporates IS1690S multi-speaker stereo audio chip, 32Kb EEPROM, PCB antenna, and ISSC’s own Bluetooth software stack to achieve the required BT v3.0 with EDR functions.

To provide the superior audio and voice quality, it also integrates a DSP co-processor, a PLL, and a CODEC dedicated for voice and audio applications. For voice, not only basic CVSD encoding and decoding but also enhanced noise reduction and echo cancellation are implemented by the built-in DSP to reach the better quality in the both sending and receiving sides. For enhanced audio applications, SBC decoding functions can be also carried out by DSP to satisfy Bluetooth A2DP requirements.

In addition, to minimize the external components required for portable devices, a battery voltage sensor , battery charger, a switching regulator and LDO are integrated to reduce system BOM cost for various Bluetooth applications.

产品特性

Compliant with Bluetooth Specification v.3.0 + EDR in 2.4 GHz ISM band module
Supports the following profiles : Hands Free 1.5 Headset 1.0 A2DP 1.0 AVRCP 1.0
Hands Free 1.5
Headset 1.0
A2DP 1.0
AVRCP 1.0
Built-in 16MHz main clock input
Built-in internal ROM for program memory
Support to connect to two hosts ( phones, tablets…) with HFP or A2DP profiles simultaneously
Adaptive Frequency Hopping (AFH) avoids occupied RF channels
Fast Connection supported RF Hardware
Fully Bluetooth 3.0 + EDR system in 2.4 GHz ISM band
Combined TX/RX RF terminal simplifies external matching and reduces external antenna switches
Max. +4dBm output power with 20 dB level control from register control.
Built-in T/R switch for Class 2/3 application
To avoid temperature variation, temperature sensor with temperature calibration is utilized into bias current and gain control
Fully integrated synthesizer has been created. There requires no external VCO, varactor diode, resonator and loop filter
Crystal oscillation with built-in digital trimming for temperature/process variations
Built-in PCB antenna.
Support A-Law or µ-Law PCM format, or CVSD (Continuous Variable Slope Delta Modulation) for SCO channel operation
Noise suppression
Echo suppression
SBC decoding
Packet loss concealment
Build-in one languages (English) voice prompts and 20 events for each one
16 bit DAC and 16 bit ADC codec
94dB SNR DAC playback
85 dB SNR ADC. Peripherals
Built-in Lithium-ion battery charger (up to 350mA)
Integrate 3V, 1.8V configurable switching regulator and LDO
Built-in ADC for battery monitor and voltage sense.
A line-in port for external audio input
Two LED drivers
Built-in 32Kb EEPROM
High speed HCI-UART (Universal Asynchronous Receiver Transmitter) interface (up to 921600bps)
15 x 29 mm2 40 pins package

技术参数

Parameter Name Value	Value
Bluetooth Classic-Audio Yes	Yes
Audio Channels Stereo	Stereo
Analog Audio Out Yes	Yes
MIC-in 1	1
Line-in Yes	Yes
Memory Type ROM	ROM
GPIO 10	10
Pin Count 40	40
Package Type Surface mount module	Surface mount module
Package Size 29 x 15 x 1.8 mm	29 x 15 x 1.8 mm
Min Temp Range -20C	-20C
Max Temp Range 70C	70C
Op Voltage Min 3.0V	3.0V
Op Voltage Max 4.25V	4.25V

文档资料

BM90 Datasheet	Data Sheets	07/01/2015	1690KB
IS1690 Application Note	AppNote	07/01/2015	2752KB
IS1690 DSP Configuration Tool	Software	07/01/2015	250KB
IS1690 UI Configuration Tool	Software	07/01/2015	2956KB
IS1690 DSP Tool User Guide	User Guides	07/01/2015	999KB
IS1690 Multi-Speaker UI Tool User Guide	User Guides	07/01/2015	1177KB
IS1690 UI Tool User Guide	User Guides	07/01/2015	1093KB