CSR8311A12
CSR8311A12
CSR8311A12

Single-chip radio and baseband IC that connects to a host processor over HCI

Qualcomm CSR8311A12 is a single-chip radio and baseband, Bluetooth (BR/EDR) and Bluetooth Low Energy solution, built to serve a variety of automotive Bluetooth use cases. Full-speed Bluetooth operation with full piconet and scatternet support enables multiple ways to connect to a variety of Bluetooth devices. On-chip SBC encoding with Wideband speech support handles speech applications, while 2Mbps and 3Mbps EDR support enables Bluetooth data use cases. HCI stack firmware to run on-chip on CSR8311A12 is provided by Qualcomm and it is ...

CSR8311A12 is a product of Qualcomm Technologies, Inc., and/or its subsidiaries.

Product license agreement
Benefits
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Bluetooth® v5.2

Fully qualified Bluetooth V5.2 specification in BR/EDR-only mode. Option to support BR/EDR+BLE Dual Mode with Bluetooth V4.2 qualification.

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Bluetooth - Wi-Fi Coexistence

Coexistence features to support Bluetooth operation while tackling interference from/to 2.4 GHz Wi-Fi

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Optimized for use on low cost PCBs

Low-cost PCB with no laser via needed

CSR8311A12 Block Diagram

Features

  • Digital demodulator for improved Bluetooth® receiver sensitivity and co-channel rejection
  • Real time digitized RSSI available on HCI interface
  • Fast AGC for enhanced dynamic range
  • Internal RAM enables full-speed data transfer, mixed voice and data, and full piconet operation, including all medium rate packet types
  • Logic for forward error correction, header error control, access code correlation, CRC, demodulation, encryption bit stream generation, whitening, and transmit pulse shaping. Includes support for eSCO and AFH
  • Qualcomm Bluetooth Protocol Stack runs up to HCI on the on-chip MCU
  • Fully integrated synthesizer requires no external VCO varactor diode, resonator, or loop filter
  • Synchronous serial interface up to 4 Mbps for system debugging
  • Power management includes digital shutdown and wake up commands with an integrated low-power oscillator
  • Auto Baud Rate setting, depending on host interface
  • Arbitrary sequencing of power supplies is permitted
  • Low-cost PCB with no laser via needed
Specifications
Bluetooth
Classic Data Rate
1 Mbps, 2 Mbps, 3 Mbps
Specification Version
Bluetooth® 4.1, Bluetooth® 5.2 Qualified1, Bluetooth® 4.2 Qualified2
Connection Technology
Bluetooth® Low Energy, Bluetooth® Classic, Dual-mode Bluetooth®
Class
Class 1, Class 2, Class 3
Antenna Port Impedance
50 Ω
Maximum Output Power (typical)
Up to 9 dBm
Receiver Sensitivity (Basic Rate, typical)
Down to -95 dBm
Interfaces
Supported Interfaces
UART, I²S, 2x Digital Microphone In, USB 2.0, USB, BCSP, H4, H4DS, H5
Master I²S
Number of Interfaces
2
Modes
PCM, I²S
Universal Serial Bus (USB)
Specification Version
USB 2.0
Package
Pins
40 pins
Type
QFN
Pitch
0.5 mm
  1. Bluetooth® BR/EDR only. Configurable via firmware patch bundle.
  2. Bluetooth® Dual Mode (BR/EDR and Bluetooth® Low Energy). Configurable via firmware patch bundle.
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