BAL-CW1250D3

Product Overview

BAL-CW1250D3 integrates the balanced/unbalanced transformation required in 2.4 GHz to 2.5 GHz signal paths. Its network is customized for CW1250, CW1150, CW1260 and CW1160 transceivers, presenting the stated 50 Ω nominal single-ended input / matched differential output relationship while reducing the number of external RF matching components. Only confirmed frequency, matching, package and application data is included; unavailable numerical limits are omitted.

This device is designed specifically for WLAN transceiver differential ports and avoids the area and tuning spread of a discrete LC matching network. The specified RFIC, package option and recommended PCB geometry are part of the matching solution, so a nearby ST balun code should not be substituted solely because it operates in the same general band.

Key Features

• Manufacturer: STMicroelectronics
• Part Number: BAL-CW1250D3
• Product Category: RF Balun / Integrated Matching Network
• Device Type: WLAN transformer balun with integrated matching network
• Frequency Range: 2.4 GHz to 2.5 GHz
• System / Port Impedance: 50 Ω nominal single-ended input / matched differential output
• Matched RF IC / Platform: CW1250, CW1150, CW1260 and CW1160 transceivers
• Integrated Function: DC blocking on the single-ended RF input
• Package / Case: Coated flip-chip glass IPD, footprint below 1.2 mm²
• Mounting Type: Surface mount
• Technology: IPD on non-conductive glass substrate

Applications

• 2.4 GHz WLAN transceiver front ends
• Compact wireless modules and access devices
• Differential RFIC-to-antenna matching

Quality & Sourcing

Antrex Electronics can support sourcing of BAL-CW1250D3 for production, repair and shortage requirements. Incoming verification can include manufacturer marking, package dimensions, frequency and impedance review, date-code checks and third-party inspection when requested. For obsolete or NRND parts, the exact ordering suffix should be maintained until an engineering-approved alternative is qualified.