Active PSTN signal port — 16-bit, dual-channel, 5 V supply
The AD28MSP01KP is a 16-bit, 2-channel PSTN signal port IC from Analog Devices, in a 44-PLCC (16.59x16.59) package with J-Lead gull-wing terminals for surface-mount assembly.
Lifecycle and compliance — active production, RoHS non-compliant
Marked RoHS non-compliant, so it does not carry the lead-free exemption. For BOMs that require RoHS conformance, the AD28MSP01KP-REEL peer variant shares the same 350 mW power, 2-channel count, and 16-bit resolution — but the reel packaging may indicate a different date-code band or environmental compliance status; verify the specific RoHS declaration at RFQ.
Package and board-fit — 44-PLCC J-Lead
Housed in a 44-lead PLCC with J-bend leads (44-LCC J-Lead), the package footprint is 16.59 x 16.59 mm. The J-Lead profile provides a lower standoff than gull-wing, which can improve coplanarity in reflow but requires a slightly different solder-paste stencil aperture — the inner corners of the J-bend need adequate paste volume to avoid open joints.