Harman Kardon AVR 171/230, Service Manual

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Product Specification
Spec-BM840-V1.1 Page 1 of 7 www.sunitec.com.tw
®
Features:
z Bluetooth Spec 4.0 Compliant
z Class 2 type Output Power
z Support A2DP 1.2,AVRCP V1.4,HSP 1.2 and
HFP 1.6 Profiles
z Secure simple pairing, CSR's proximity pairing
and CSR's proximity connection
z HFP v1.6 includes wideband speech and mSBC
Codec.
z CSR's latest CVC technology audio enhancement
z Multipoint connection to 2 phones for voice and
Music
z Support for multi-language programmable audio
prompts
z
OS battery status monitoring and smart apps
z Voice recognition support for answering a call,
enables true hands-free use
z Wired audio support (USB and analogue)
z SBC, MP3, and AAC decoder support
z 5-band fully configurable EQ
z Integrated dual switch-mode regulators, linear
regulators and battery charger
z Support for 802.11 Co-existence
z
Size: 15mm x 11mm x 2.35mm
z Weight: 0.8g
System Architecture
BM840 Stereo Solution Module
CSR
8640A04
April 2012
Product Description:
The BM840 is a Class 2 Bluetooth sub-system
using CSR8640 chipset from leading Bluetooth
chipset supplier Cambridge Silicon Radio.
It is a single-chip radio and baseband IC for
Bluetooth 2.4GHz systems.The integrated
peripherals reduce the number of external
components required, including no
requirement for external codec, battery charger,
SMPS, LDOs, balun or external program
memory, ensuring minimum production costs.
Applications:
•
Stereo headsets and Headphones
•
Wireless speaker
Specifications:
Operating Frequency Band 2.4GHz ~ 2.48GHz unlicensed ISM band
Bluetooth Specification V4.0
Output Power Class Class 2
Operating Voltage 3.3V
Host Interface USB 1.1
Audio Interface PCM, I2S, Analogue and USB audio
Dimension 15mm (L) x 11(W) mm x 2.35mm (H)
Specifications are subject to change without prior notice
Qualified
Harman Kardon AVR 171 Service Manual
Page 110 of 174