Infineon Technologies CYW15G0101DXB-BBC

Overview

CYW15G0101DXB-BBC from Cypress Semiconductor is a single-channel HOTLink II™ transceiver IC designed for high-speed point-to-point serial data transmission over fiber, copper, or PCB traces. It operates at 195–1540 MBaud, supports 8B/10B encoding or 10-bit unencoded data, features dual PECL-compatible differential I/O, and includes integrated PLLs, Elasticity Buffer (RX), Phase Align Buffer (TX), and JTAG boundary scan. It is OBSAI-RP3 compliant and used in wireless base station fronthaul interfaces.

For engineers reviewing the CYW15G0101DXB-BBC datasheet, CYW15G0101DXB-BBC pinout, CYW15G0101DXB-BBC application, or CYW15G0101DXB-BBC equivalent, key selection considerations include its 1540 MBaud max rate, OBSAI-RP3 compliance, dual-differential PECL I/O with internal DC restoration, selectable input/output clocking modes, and built-in BIST for at-speed link validation.

Technical Context

The CYW15G0101DXB-BBC implements a full HOTLink II protocol stack: TX path accepts parallel LVTTL data (8-bit or pre-encoded 10-bit), applies optional 8B/10B encoding, and serializes at ×10 or ×20 REFCLK via integrated PLL; RX path recovers clock/data using a fully integrated PLL-based CDR, deserializes, frames, decodes, and delivers aligned parallel output with optional Elasticity Buffer latency compensation.

It supports three clocking configurations per channel: REFCLK-driven or TXCLK-driven transmit interface, and recovered-clock or REFCLK-synchronized receive interface. The MultiFrame™ framer enables comma detection (K28.5), bit/byte alignment, and configurable single/multi-byte framing - critical for deterministic latency in OBSAI-RP3 fronthaul timing.

Key Specifications

Pinout & Package

100-ball Pb-free BGA package (11×11 mm, 0.8 mm pitch), bottom-side ball layout optimized for controlled-impedance routing of PECL differential pairs and low-noise LVTTL parallel buses.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed serial transceiver applications.

Compared with MAX3875AETM+ and TLK2711IRCP, CYW15G0101DXB-BBC uniquely integrates OBSAI-RP3–optimized framer logic, Elasticity Buffer, and dual-rate PLL configuration - delivering out-of-box fronthaul compliance without FPGA firmware development or external support ICs.

Availability

CYW15G0101DXB-BBC is available at Aetrix Electronics and suitable for wireless infrastructure, broadcast video transport, and high-speed backplane interconnect applications requiring stable component supply and long-term lifecycle support.

Supply support for CYW15G0101DXB-BBC 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) is a fabless semiconductor company specializing in high-performance mixed-signal ICs for communications, computing, and industrial markets.

CYW15G0101DXB-BBC belongs to the HOTLink II transceiver product line, engineered specifically for deterministic, low-latency serial interconnects in telecom fronthaul, broadcast video, and high-speed switching systems.

FAQ

Is CYW15G0101DXB-BBC pin-compatible with CYV15G0101DXB or CYP15G0101DXB?

Yes - all three variants (CYW/CYV/CYP) share identical 100-ball BGA pinout, electrical interface, and register map. The differences are functional: CYW is OBSAI-RP3 certified up to 1540 MBaud; CYV meets SMPTE 259M/292M pathological test requirements; CYP is the base version without either certification. Hardware replacement is drop-in, but firmware must match the target standard's timing and control settings.

Does CYW15G0101DXB-BBC require external termination resistors for its PECL outputs?

No - the device integrates source-matching for 50 Ω transmission lines on both OUT1± and OUT2± outputs. No external bias resistors or termination networks are needed, simplifying PCB layout and reducing BOM count. Differential output swing is nominally 800 mVpp into 50 Ω, compliant with PECL-200 standards.

Can the Elasticity Buffer be disabled to minimize receive latency?

Yes - the Elasticity Buffer is optional and controlled via the RFEN pin. When RFEN = LOW, the buffer is bypassed, reducing RX path latency to ~3 character clocks (vs. ~12 with buffer enabled). This mode is used in ultra-low-latency applications like real-time beamforming where deterministic sub-microsecond delay is critical.

What clock sources does CYW15G0101DXB-BBC support for the transmit interface?

Three configurations are supported: REFCLK↑ (TXCKSEL = LOW), TXCLK↑ (TXCKSEL = MID/HIGH), or half-rate REFCLK (TXRATE = HIGH with TXCKSEL = LOW). The device automatically adjusts internal PLL multiplication (×10 or ×20) and phase alignment based on these inputs - enabling flexible clock tree design across FPGA, ASIC, and crystal oscillator sources.