Infineon Technologies CY8CPLC10-28PVXIT

Overview

CY8CPLC10-28PVXIT from Cypress Semiconductor is an integrated Powerline Communication (PLC) transceiver IC featuring a 2400 bps FSK modem PHY, full Powerline Network Protocol stack (Data Link/Transport/Network layers), 8-bit CRC error detection, I²C interface (50/100/400 kHz), and support for 110–240 V AC and 12–24 V AC/DC coupling. It enables robust bidirectional half-duplex communication across noisy powerlines in smart energy and industrial control systems.

For engineers reviewing the CY8CPLC10-28PVXIT datasheet, CY8CPLC10-28PVXIT pinout, CY8CPLC10-28PVXIT application, or CY8CPLC10-28PVXIT equivalent, key selection criteria include FSK carrier frequencies (131.8/133.3 kHz), logical addressing (8-/16-/64-bit), CSMA timing parameters (85–115 ms backoff), BIU detector threshold (86 dBuVrms), and compliance with EN50065-1:2001 and FCC Part 15.

Technical Context

The CY8CPLC10-28PVXIT implements a dedicated FSK modem PHY with programmable gain amplifier, HF/IF bandpass filtering, correlator-based demodulation, and hysteresis comparator for noise-immune digital recovery. Its internal protocol engine handles packet assembly (PLT format), sequence numbering, acknowledged/unacknowledged transmission modes, and Carrier Sense Multiple Access with configurable backoff timing.

It operates with external 24 MHz oscillator and 32.768 kHz crystal, supports hardware LOG_ADDR[2:0] configuration (overridden by I²C), and requires external coupling circuitry matched to line voltage (e.g., 240 V AC compliant design). The I²C interface serves as sole host interface-no SPI, UART, or GPIO control plane is present.

Key Specifications

Pinout & Package

Package: 28-pin SSOP (28PV), body size 10.2 mm × 5.3 mm, 0.65 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Powerline Communication transceiver applications.

Compared with ST7580 and MAX2990, CY8CPLC10-28PVXIT uniquely delivers full protocol offload in an FSK PHY with CENELEC/FCC compliance out-of-box-reducing host MCU firmware burden while maintaining deterministic latency and lower bill-of-materials than OFDM solutions.

Availability

CY8CPLC10-28PVXIT is available at Aetrix Electronics and suitable for residential lighting control, smart energy metering, and industrial signage requiring stable component supply and long-term lifecycle support.

Supply support for CY8CPLC10-28PVXIT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Cypress Semiconductor (now part of Infineon Technologies) designs programmable system-on-chip solutions for embedded control, connectivity, and security applications.

The CY8CPLC10 product line was engineered specifically for low-cost, standards-compliant powerline communication in resource-constrained edge nodes-targeting lighting, metering, and building automation where wiring reuse is mandatory.

FAQ

What external components are mandatory for CY8CPLC10-28PVXIT operation?

The device requires an external 24 MHz crystal or oscillator on EXTCLK, a 32.768 kHz crystal on XTAL_IN/XTAL_OUT, pull-up resistors on I²C_SCL/I²C_SDA, and a compliant coupling circuit (e.g., transformer + filter network) matched to line voltage (110/240 V AC or 12/24 V AC/DC). No external memory or protocol processor is needed-the full stack resides on-die.

Does CY8CPLC10-28PVXIT support automatic retransmission on packet loss?

Yes-it implements automatic retransmission in acknowledged mode when no ACK is received within timeout, using identical sequence numbers. Retransmission count is configurable (TX_Retry), and CSMA backoff applies before each retry attempt. Unacknowledged mode repeats transmission TX_Retry + 1 times without waiting for ACK.

Can logical addresses be set without I²C communication?

Yes-via the 3-bit LOG_ADDR[2:0] pins, which accept static logic levels (e.g., DIP switch or resistor dividers) to assign an 8-bit logical address at power-up. However, this value is overwritten if the host writes a new address via I²C, enabling dynamic reconfiguration during runtime.

Is the CY8CPLC10-28PVXIT compatible with legacy CENELEC EN50065-1:1992 systems?

No-it complies with EN50065-1:2001, which specifies updated spectral masks and BIU detection thresholds (86 dBuVrms, 131.5–133.5 kHz, ≥4 ms). Systems designed for the 1992 version may require firmware or coupling circuit adjustments to interoperate, as the 2001 revision tightens in-band emission limits and introduces stricter idle-channel sensing.