Texas Instruments SN65LVCP22D

Overview

SN65LVCP22D from Texas Instruments is a 2×2 LVDS crosspoint switch IC supporting >1000 Mbps per channel, with dual fully differential LVDS outputs, wide common-mode input range (0 V to 4 V), and configurable operation as repeater, 2:1 mux, or 1:2 splitter. It enables fault-tolerant serial bus switching in optical networking line cards.

For engineers reviewing the SN65LVCP22D datasheet, SN65LVCP22D pinout, SN65LVCP22D application, or SN65LVCP22D equivalent, key selection criteria include channel-to-channel skew (<10 ps typ), low jitter (50 ps pk-pk with PRBS 2²³–1), LVDS/LVPECL/CML input compatibility, and SOIC-16 package suitability for space-constrained backplane interfaces.

Technical Context

The SN65LVCP22D implements a fully differential data path with independent enable (EN0/EN1) and select (SEL0/SEL1) control logic, enabling four distinct routing modes per function table. Its receiver accepts LVDS, LVPECL, and CML signals across 0 V–4 V common-mode range, while outputs drive 75 Ω loads with 285–440 mV differential voltage at 3.3 V supply.

Propagation delay is 400–1000 ps with <100 ps pulse skew, and switching time is 1.7 ns typ. Output channel-to-channel skew is specified at ≤50 ps max in splitter mode, ensuring precise timing alignment for redundant serial links in telecom infrastructure.

Key Specifications

Pinout & Package

SN65LVCP22D is housed in a 16-pin SOIC (D) package with 1.27 mm pitch, 10.3 mm × 6.5 mm body, and exposed metal-free construction. Pin 1 is located at top-left corner with index area marking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 2×2 LVDS crosspoint switching applications.

Compared with SN65LVCP22PW and DS90CP22MTD, the SN65LVCP22D delivers guaranteed 1 Gbps operation with lowest jitter and widest input voltage tolerance in the industry-standard SOIC-16 footprint - making it the preferred choice for new telecom and datacom designs requiring full-rate serial redundancy.

Availability

SN65LVCP22D is available at Aetrix Electronics and suitable for optical networking line cards, redundant serial backplanes, and base station radio units requiring stable component supply across extended product lifecycles.

Supply support for SN65LVCP22D 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with over 50 years of innovation in high-speed interface solutions.

The SN65LVCP22D belongs to TI's LVDS crosspoint and repeater portfolio, designed specifically for fault-tolerant serial data routing in telecom infrastructure, where timing precision, multi-standard compatibility, and long-term supply stability are critical.

FAQ

What is the maximum supported data rate for SN65LVCP22D?

The SN65LVCP22D is characterized for operation up to 1 Gbps per channel, with jitter and timing specifications validated using PRBS 2²³–1 patterns at that rate. Performance remains compliant with TIA/EIA-644-A LVDS standards across the full –40°C to +85°C temperature range. The SN65LVCP22D achieves this using a fully differential architecture with low-noise biasing and matched internal paths.

Does SN65LVCP22D support LVPECL and CML inputs in addition to LVDS?

Yes, the SN65LVCP22D accepts LVPECL and CML signals directly on its IN0 and IN1 differential inputs due to its wide 0 V to 4 V common-mode input voltage range. This eliminates the need for external level-shifting circuitry when interfacing with legacy LVPECL clock sources or CML SerDes outputs. The SN65LVCP22D maintains full timing and jitter performance across all three input standards.

How is routing configuration controlled on SN65LVCP22D?

Routing mode on the SN65LVCP22D is set via two CMOS/TTL-compatible control pins: SEL0 and SEL1. These pins define four functions per the device's function table - including 1:2 splitter, repeater, switch, and 1:2 splitter - without requiring external programming. The SN65LVCP22D executes mode changes in 1.7 ns typical, enabling dynamic reconfiguration during system operation.

What is the channel-to-channel output skew specification for SN65LVCP22D?

The SN65LVCP22D guarantees ≤50 ps maximum channel-to-channel skew in splitter mode, with a typical value of 10 ps. This tight skew is achieved through matched internal driver paths and differential layout techniques. For applications like clock distribution or parallel data lanes, the SN65LVCP22D ensures outputs remain aligned within one UI at 1 Gbps, preserving setup/hold timing margins.

Is SN65LVCP22D pin-compatible with other devices in the SN65LVCP22 family?

Yes, the SN65LVCP22D shares identical pinout and functionality with SN65LVCP22PW (TSSOP-16) and SN65LVCP22DR (SOIC-16 tape-and-reel variant). All variants use the same SOIC-16 footprint, signal assignments, and electrical behavior - allowing drop-in replacement during prototyping or volume manufacturing. The SN65LVCP22D is the tube-packaged version optimized for evaluation and low-volume builds.