BlueCore® CSR8615 QFN Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ General Description BlueCore® CSR's CSR8615 QFN is a single-chip CSR8615 mono ROM solution for rapid evaluation and development of Bluetooth audio applications. BlueCore® CSR8615 QFN consumer audio platform for wired and wireless applications using the QFN package integrates an ultra-low power DSP and application processor with embedded flash memory, a highperformance mono codec, a power management subsystem and LED drivers. The CSR configuration tools and the development kit provide a flexible and powerful development platform to design advanced and high-quality audio products using BlueCore® CSR8615 QFN single-chip Bluetooth audio solution. Production Information © Cambridge Silicon Radio Limited 2013 1-mic CVC Audio Enhancement Fully Qualified Single-chip Bluetooth® v4.0 System Production Information CSR8615A04 Issue 2 XTAL SPI/ I2C ROM UART/USB RAM BT_RF 2.4GHz Radio + Balun Baseband Serial Flash / EEPROM I /O PIO MCU Audio In / Out Kalimba DSP Debug SPI Applications Bluetooth mono speakers Speakerphones 1-mic CVC headset or headphones Handsfree car kits The enhanced Kalimba DSP coprocessor with 80MIPS supports enhanced audio and DSP applications. The integrated audio codec supports stereo line input with 1-mic CVC input and mono output, as well as a variety of audio standards. See CSR Glossary at www.csrsupport.com. ■ ■ ■ ■ Page 1 of 4 CS-303200-TOP2 www.csr.com CSR8615 QFN Technical Overview ■ CSR8615 Mono ROM Solution Bluetooth® v4.0 specification compliant 80MHz RISC MCU and 80MIPS Kalimba DSP High-performance mono codec with 1 microphone input Internal ROM, serial flash memory and EEPROM interfaces Radio includes integrated balun with RF performance of 8dBm transmit power and -89dBm receiver sensitivity AVRCP v1.4 5-band fully configurable EQ Wideband speech supported by HFP v1.6 and mSBC codec CSR's latest CVC technology for narrowband and wideband voice connections including wind noise reduction Multipoint support for A2DP connection to 2 A2DP sources for music playback Secure simple pairing, CSR's proximity pairing and CSR's proximity connections Stereo line-in Serial interfaces: USB 2.0, UART, I²C and SPI SBC, MP3 and AAC decoder support Wired audio support Integrated dual switch-mode regulators, linear regulators and battery charger External crystal load capacitors not required for typical crystals 3 LED outputs (RGB) 68-lead QFN 8 x 8 x 0.9mm 0.4mm pitch Green (RoHS compliant and no antimony or halogenated flame retardants) Device Details Production Information © Cambridge Silicon Radio Limited 2013 Physical Interfaces UART interface for debug USB 2.0 (full-speed) interface, including charger enumeration ■ 1-bit SPI flash memory interface ■ SPI interface for debug and programming ■ I²C interface for EEPROM ■ Up to 20 general purpose PIOs with 3 extra opendrain PIOs available when LED not used ■ PCM and I²S (only in HCI mode) interfaces ■ 3 LED drivers (includes RGB) with PWM flasher independent of MCU Integrated Power Control and Regulation ■ Automatic power switching to charger when present ■ 2 high-efficiency switch-mode regulators with 1.8V and 1.35V outputs direct from battery supply ■ 3.3V linear regulator for USB supply ■ Low-voltage linear regulator for internal digital circuits ■ Low-voltage linear regulator for internal analogue circuits ■ Power-on-reset detects low supply voltage ■ Power management includes digital shutdown and wake-up commands for ultra-low power modes Battery Charger ■ Lithium ion / Lithium polymer battery charger ■ Instant-on function automatically selects the power supply between battery and USB, which enables operation even if the battery is fully discharged ■ Fast charging support up to 200mA with no external components. Higher charge currents using external pass device. ■ Supports USB charger detection ■ Support for thermistor protection of battery pack ■ Support to enable end product design to PSE law: ■ Design to JIS-C 8712/8714 (batteries) ■ Testing based on IEEE 1725 Baseband and Software ■ Internal ROM ■ Memory protection unit supporting accelerated VM ■ 56KB internal RAM, enables full-speed data transfer, and full piconet support ■ Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream generation, whitening and transmit pulse shaping ■ ■ Page 2 of 4 CS-303200-TOP2 www.csr.com CSR8615 QFN Technical Overview Bluetooth low energy ■ Dual-mode Bluetooth low energy radio ■ Support for Bluetooth basic rate / EDR and low energy connections ■ 3 Bluetooth low energy connections at the same time as basic rate A2DP Bluetooth Radio ■ On-chip balun (50Ω impedance) ■ No production trimming of external components ■ Bluetooth v4.0 specification compliant Bluetooth Transmitter ■ 8dBm (typ) RF transmit power with level control ■ Class 1, Class 2 and Class 3 support, no external PA or TX/RX switch required Bluetooth Receiver ■ -91dBm (typ) π/4 DQPSK receiver sensitivity and -81dBm (typ) 8DPSK receiver sensitivity ■ Integrated channel filters ■ Digital demodulator for improved sensitivity and cochannel rejection ■ Real-time digitised RSSI available to application ■ Fast AGC for enhanced dynamic range ■ Channel classification for AFH Bluetooth Synthesiser ■ Fully integrated synthesiser requires no external VCO, varactor diode, resonator or loop filter ■ Compatible with crystals 16MHz to 32MHz Kalimba DSP ■ Enhanced Kalimba DSP coprocessor, 80MIPS, 24‑bit fixed point core ■ 2 single-cycle MACs; 24 x 24-bit multiply and 56-bit accumulator ■ 32-bit instruction word, dual 24-bit data memory ■ 6K x 32-bit program RAM including 1K instruction cache for executing out of internal ROM ■ 16K x 24-bit + 16K x 24-bit 2-bank data RAM Audio Interfaces ■ Stereo line input audio ADC with 1-mic CVC ■ Mono audio DAC ■ Supported sample rates of 8, 11.025, 16, 22.05, 32, 44.1, 48 and 96kHz (DAC only) Auxiliary Features ■ Crystal oscillator with built-in digital trimming Package Option ■ 68-lead QFN 8 x 8 x 0.9mm 0.4mm pitch CSR8615 Mono ROM Solution Details Production Information © Cambridge Silicon Radio Limited 2013 CSR8615 Mono ROM Solution Development Kit Example CSR8615 QFN module design Carrier board Output stage: headphone amplifier Interface adapters and cables Works in conjunction with the CSR8600 ROM Series Configuration Tool and other supporting utilities ■ ■ ■ ■ ■ CSR8615 QFN Technical Overview Bluetooth Profiles ■ Bluetooth v4.0 specification support ■ A2DP v1.2 ■ AVRCP v1.4 ■ HFP v1.6 ■ HSP v1.2 ■ DI v1.3 Music Enhancements ■ Configurable 5-band EQ for music playback (rock, pop, classical, jazz, dance etc) ■ SBC, MP3, AAC and Faststream decoder ■ Volume Boost Additional Functionality ■ Support for multi-language programmable audio prompts ■ CSR's proximity pairing and CSR's proximity connection ■ Multipoint support for A2DP connection to 2 A2DP sources for music playback ■ Talk-time extension CSR8600 ROM Series Configuration Tool Configures the CSR8615 mono ROM solution software features: ■ Bluetooth v4.0 specification features ■ Reconnection policies, e.g. reconnect on power-on ■ Audio features, including default volumes ■ Button events: configuring button presses and durations for certain events, e.g. double press on PIO for last number redial ■ LED indications for states, e.g. device connected, and events, e.g. power on ■ Indication tones for events and ringtones ■ Battery divider ratios and thresholds, e.g. thresholds for battery low indication, full battery etc. ■ Advanced Multipoint settings Page 3 of 4 CS-303200-TOP2 www.csr.com 1 Ordering Information Package Device CSR8615 Mono ROM Solution Type Size Shipment Method QFN‑68-lead (Pb free) 8 x 8 x 0.9mm 0.4mm pitch Tape and reel Order Number CSR8615A04‑IQQF‑R Note: CSR8615 QFN is a ROM-based device where the product code has the form CSR8615Axx. Axx is the specific ROM-variant, A04 is the ROM-variant for CSR8615 Mono ROM Solution. Minimum order quantity is 2kpcs taped and reeled. 1.1 Contacts General information Information on this product Customer support for this product Details of compliance and standards Help with this document 1.2 www.csr.com [email protected] www.csrsupport.com [email protected] [email protected] CSR8615 Mono ROM Solution Development Kit Ordering Information Description Order Number CSR8615 Mono ROM Solution Audio Development Kit DK‑8615‑10161‑1A Document History Revision Date Change Reason 1 02 AUG 13 Original publication of this document. 2 08 OCT 13 Production Information added. Trademarks, Patents and Licences Unless otherwise stated, words and logos marked with ™ or ® are trademarks registered or owned by CSR plc or its affiliates. Bluetooth ® and the Bluetooth ® logos are trademarks owned by Bluetooth ® SIG, Inc. and licensed to CSR. Other products, services and names used in this document may have been trademarked by their respective owners. The publication of this information does not imply that any license is granted under any patent or other rights owned by CSR plc and/or its affiliates. CSR reserves the right to make technical changes to its products as part of its development programme. While every care has been taken to ensure the accuracy of the contents of this document, CSR cannot accept responsibility for any errors. Refer to www.csrsupport.com for compliance and conformance to standards information. The status of this document is Production Information: This includes guaranteed minimum and maximum limits for the electrical specifications. ■ ■ Production Information supersedes all previous document versions. Production Information © Cambridge Silicon Radio Limited 2013 Page 4 of 4 CS-303200-TOP2 www.csr.com CSR8615 QFN Technical Overview Supply chain: CSR's manufacturing policy is to multisource volume products. For further details, contact your local sales account manager or representative.