
KMBT020
E.A.’s Model:
KMBT020 A(CSR8670+NO External Flash)
KMBT020 B(CSR8670+8M External Flash)
KMBT020 C(CSR8670+16M External Flash)
KMBT020 D(CSR8670+32M External Flash)
KMBT020 E(CSR8670+64M External Flash)
KMBT020 A(CSR8670+NO External Flash)
KMBT020 B(CSR8670+8M External Flash)
KMBT020 C(CSR8670+16M External Flash)
KMBT020 D(CSR8670+32M External Flash)
KMBT020 E(CSR8670+64M External Flash)
Approval Memo:
V1.0
CSR8670 WLCSP
Size:9.0×9.0x1.5mm
Device Features
- Bluetooth® v4.0 specification fully qualified software.
- Radio includes integrated balun.
- 80MHz RISC MCU and 80MIPS Kalimba DSP.
- 16Mb internal flash memory (64-bit wide, 45ns); optional support for 64Mb of external SPI flash.
- Stereo codec with 2 channels of ADC and up to 6 microphone inputs (includes bias generators and digital microphone support).
- Support for CSR’s latest CVC technology for narrow-band and wideband
- voice connections including wind noise reduction.
- Audio interfaces: I²S, PCM and SPDIF.
- Serial interfaces: UART, USB 2.0 full-speed, I²C.
- Integrated dual switch-mode regulators, linear regulators and battery charger.
- 3 hardware LED controllers (for RGB) and ability to drive LCD segment display directly.
- Support for up to 6 capacitive touch sensor inputs.
- Surface-mount, Size: 9.00×9.00×1.80mm max pitch 57-ball BGA.
General Description
- K-mate® KMBT020 BGA consumer audio platform for wired and wireless applications integrates 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 and capacitive touch sensor inputs 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.
- The enhanced Kalimba DSP coprocessor with 80MIPS supports enhanced audio and DSP applications.

Applications
Home Entertainment Ecosystem
- TVs
- Smart remote controllers
- Wired or wireless soundbars
- Wired or wireless speakers and headphones
Tablets / PCs / Mobile Connectivity
- Wearable audio (on-the-go)
- Wearable audio with sensors (health and wellbeing applications)
- Wired or wireless stereo headphones for music/gaming/multimedia content
- Wired or wireless speakers
- Wired or wireless speakerphones
- Mono headsets for voice
The audio codec supports 2 ADC channels, up to 6 microphone inputs, stereo output and a variety of audio standards.