ISDN echo-cancellation in a 44-PLCC
The PEB2091NV5.2 is an ISDN echo-cancellation circuit from Infineon, built for the IOM-2 and PCM digital interface standards. It handles the line-side echo suppression in ISDN basic-rate or primary-rate interfaces, cleaning up the return signal so the far-end decoder gets a clean frame. Housed in a 44-PLCC (J-Lead) package — 16.6 mm square — it is a surface-mount part that reflows on a standard convection profile. The J-bend leads give a visual solder-joint check under a microscope, which helps when you are verifying the board after assembly.
Supply and temperature envelope
Single-circuit design (1 channel), so one package handles one ISDN line. For multi-line cards, you place one per port.
Sourced through authorized and independent distribution; lead time and pricing confirmed at RFQ against your quantity. No pin-compatible second-source or successor is listed, so the PEB2091NV5.2 is the one to spec.