Yamaha Corporation BM20L Manuale Utente

Product Specification

Spec-BM20L-V0.6 Page 1 of 8 www.sunitec-cn.com

Features:



Bluetooth Spec V4.2 Dual mode Compliant



Fully Integrated RF/PMU/BT/Audio/CPU



Up to 400MHz ARMTM Cortex-M4F CPU



Integrated

26MHz Crystal Oscillator for Low Power

Operation



Dual MICs Noise Reduction



Echo Cancellation



Voice recognition support



Multi-Band EQ and Bass Enhancement



Immersive Audio with 3D or Virtual Surround Sound



External Micro SD Support



HiFi Audio support with Sample Rate Up to 384KHz,
24bit Audio Processing, DAC: 105dB SNR



Support 8M internal Flash



Advanced 40nm Low Power Process



Support for 802.11 Co-existence



Size: 18.9±0.5mm x 14.6±0.5mm x 1.7±0.5mm



Weight: 0.8g

System Architecture

BM20L Class 1 Multimedia Module

BM20L

Jan 2018

(This Photos are for reference only)

Product Description:

The BM20L series module consumer audio platform for
wired and wireless applications fully Integrated
RF/PMU/BT/Audio/CPU ,an ultra-low-power DSP and
application processor with embedded flash memory, a high-
performance stereo codec, a power management subsystem,
LED and LCD drivers in a SOC IC. The dual-core
architecture with flash memory enables manufacturers to
easily differentiate their products with new features without
extending development cycles.

Applications:



Wired or wireless soundbars



Wired or wireless speakers and headphones



Wearable audio with sensors



Stereo headsets

Specifications:

Operating Frequency Band

2.4GHz ~ 2.48GHz unlicensed ISM band

Bluetooth Specification

V4.2

Output Power Class

Class1

（BQB only ）

Max. Output Power

8dbm

Date Rate

3Mbps

Channel No.

Modulation Type

GFSK π/4 DQPSK 8DPSK

Operating Voltage

3.3V

Host Interface

USB 2.0 or UART

Audio Interface

PCM, I2S, SPDIF

Flash Memory Size

8Mbits

Dimension

18.9mm (L) x 14.6 (W) mm x 1.7mm (H)

Specifications are subject to change without prior notice

Qualifie