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Product Detailed Parameters
- Description：PLL FREQUENCY SYNTHESIZER, PQCC2
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Function：-
- Frequency：-
- RF Type：-
- Secondary Attributes：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LMX2522LQ1635 is a PLLatinum dual frequency synthesizer system with integrated VCOs, designed for RF applications. It operates at a center frequency of 1635MHz and supports CDMA and PCS radio types. The device is housed in a 28-WQFN (5x5) package with exposed pad. It features an integrated phase-locked loop (PLL) and voltage-controlled oscillator (VCO). The component is marked as obsolete and no longer manufactured by Texas Instruments.
Feature Summary
- Integrates dual frequency synthesis with built-in VCOs
- Optimized for Korean PCS (K-PCS) systems
- Small form factor WQFN package
Applications
- CDMA mobile communication systems
- PCS wireless communication networks
- Korean PCS (K-PCS) optimized devices
Procurement Notes
This specific part number is officially listed as obsolete and no longer manufactured by Texas Instruments. Procurement should focus on the verified direct substitute LMX2522LQ1635/NOPB. Verify component authenticity through authorized distributors to ensure compliance with RoHS3 specifications and AEC-Q100 qualification standards where applicable.
Selection Notes
Select the LMX2522LQ1635/NOPB as the primary replacement due to its direct compatibility and identical functional specifications. Ensure the design accommodates the 28-pin WQFN package dimensions. Confirm that the target application requires the specific 1635MHz frequency range and CDMA/PCS support capabilities inherent to this PLLatinum series component.
Part Context
The LMX2522 belongs to the PLLatinum family of frequency synthesizers from Texas Instruments. This series provides low-power solutions for wireless infrastructure and handsets. The LMX2522 specifically targets dual-band requirements, combining synthesis and VCO functions into a single compact IC to reduce board space and complexity in RF front-end designs.
Replacement Considerations
The LMX2522LQ1635/NOPB is the confirmed direct substitute. It maintains identical electrical characteristics and pinout configuration. No functional changes are associated with the NOPB suffix in this context.
