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CSR8311A08-AQQD-R is listed in the RF Transceiver ICS range at ChipApex. The manufacturer field lists Qualcomm. Its product description is IC RF TXRX BLE 40QFN. Review the specifications below when checking this part for your BOM.
The Qualcomm CSR8311A08-AQQD-R is a single-chip radio and baseband integrated circuit designed for Bluetooth v4.0 applications. It operates within the 2.4 GHz frequency band and supports data rates up to 3 Mbps. The component features a 40-pin QFN package and functions as a TxRx-only transceiver. It requires an operating supply voltage between 3.1V and 3.6V. The device ensures reliable connectivity with a sensitivity of -92.5dBm and supports an extended operating temperature range from -40°C to 85°C.
Verify the exact part number suffix against official Qualcomm documentation to confirm pinout and electrical specifications. Ensure the supplier provides genuine components with traceable origin. Cross-reference the datasheet revision date to confirm compatibility with current design requirements. Request material safety data sheets and compliance certificates prior to ordering.
Select this component when Bluetooth v4.0 support is required alongside integrated baseband processing. The 40-QFN package suits space-constrained designs. Verify that the system power supply aligns with the 3.1V to 3.6V operating range. Confirm thermal management strategies meet the -40°C to 85°C operational limits for the intended environment.
This RF transceiver belongs to Qualcomm's Bluetooth solution portfolio, targeting embedded applications needing compact form factors. It combines radio frequency transmission and reception with baseband control logic. The integration reduces external component count compared to discrete solutions, simplifying PCB layout and assembly processes for manufacturers.
Public confirmed substitute part numbers are not available in the provided documentation. Consult official Qualcomm resources or authorized distributors for direct replacements or pin-compatible alternatives.
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