LMX2502LQ1635/NOPB

$4.74

Description：IC FREQ SYNTH W/INT VCO 28WQFN
Series：PLLatinum™
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:1ea25c5c4913 Category: RF Misc ICs and Modules Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：IC FREQ SYNTH W/INT VCO 28WQFN
Series：PLLatinum™
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Frequency Synthesizer
Frequency：1635MHz
RF Type：CDMA, PCS
Secondary Attributes：Integrated PLL and VCO
Mounting Type：Surface Mount
Package / Case：28-WFQFN Exposed Pad
Supplier Device Package：28-WQFN (5x5)
Grade：-
Qualification：-

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LMX2502LQ1635/NOPB

Overview

The LMX2502LQ1635/NOPB is a PLLatinum frequency synthesizer system with an integrated VCO, designed for Korean PCS applications. It operates within an output frequency range of 1.61962 GHz to 1.64962 GHz. The device utilizes Silicon technology and functions on a supply voltage between 2.7 V and 3.3 V, drawing a typical operating current of 17 mA. It is housed in a 28-pin WQFN package (5x5 mm) and supports operation from -30°C to +85°C. The component holds AEC-Q100 qualification.

Feature Summary

Integrated phase-locked loop and voltage-controlled oscillator architecture
Optimized performance for Korean PCS frequency bands
AEC-Q100 qualified automotive-grade reliability

Applications

Korean PCS mobile communication systems
CDMA base station equipment
Frequency synthesis modules requiring integrated VCOs

Procurement Notes

Verify the specific suffix 'LQ1635' against the official Texas Instruments datasheet to confirm the fixed frequency configuration matches the target application requirements. Ensure the WQFN-28 thermal pad soldering process complies with the recommended reflow profile specified in the package drawings. Confirm that the operating temperature range meets the environmental constraints of the final assembly.

Selection Notes

Select this component when a fixed-frequency synthesizer optimized for Korean PCS standards is required. The integrated VCO simplifies design by eliminating external tank circuit components. Consider the 28-WQFN package dimensions for PCB layout constraints. Verify compatibility with the 2.7V to 3.3V power supply rails available in the system design before integration.

Part Context

This part belongs to the LMX2502 family of PLLatinum frequency synthesizers. It is specifically tuned for the 1635 MHz band associated with Korean PCS services. The device integrates the PLL and VCO to reduce board space and improve phase noise performance compared to discrete solutions. It serves as a specialized RF IC for cellular infrastructure and handsets in specific regional markets.

Replacement Considerations

The direct replacement part number is LMX2502LQ1635/NOPB. Note that some sources list the base model LMX2502LQ1635 as obsolete; ensure the NOPB suffix version is procured for active manufacturing support.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

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Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.