UniRx Dual-channel Wideband Rx RFIC
NRND (Not Recommended for New Designs)


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The PM8921 UniRX is a highly integrated, low-power receiver RFIC for wideband radio modules operating in the 400MHz to 4GHz frequency range. It addresses the performance requirements of 3GPP and 3GPP2 macro base station transceivers that support multiple standards such as cdma2000®, WCDMA, and LTE.

Each UniRX device includes two IF sampling receivers. This makes the UniRX ideally suited for multiple-input, multiple-output (MIMO) systems. Additionally, the UniRX includes synchronization features that enable higher-order MIMO, smart antenna and active antenna designs.

The UniRX device's low power and high level of integration address the space restrictions, reliability and thermal design challenges associated with building compact radio modules. Furthermore, its wide RF range, wide signal bandwidth and high performance enable designers to build a platform that is suited to a wide range of applications. This reduces development time and cost and reduces component inventory.

  • High integration and low power consumption enable compact transceiver designs
  • 400MHz to 4GHz RF range allows a single platform to support multiple frequency bands
  • 307.2MSPS ADCs support wideband and multi-carrier designs
  • High dynamic range signal chain and low-noise on-chip LO meet requirements for multi-standard systems including cdma2000®, WCDMA and LTE
  • JESD204B serial interface provides deterministic latency, reduces I/O pin count and supports combination of multiple UniRX devices to create higher-order MIMO transceivers

  • Wideband radio modules operating in the 400 MHz to 4 GHz range
  • Multi-standard macro basestation transceivers supporting LTE, cdma2000®, WCDMA and MC-GSM
  • Compact MIMO transceivers
  • Active Antennas

Documentation & Design Tools

Type Title Version Date File Size
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Parts & Purchasing

Part Number Min Temp Max Temp Status Suggested Replacement
PM8921A-FEI -40 85 NRND

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.