Texas Instruments SN65LVCP23DR

Overview

SN65LVCP23DR from Texas Instruments is a 2×2 LVPECL crosspoint switch IC designed for high-speed serial signal routing in fault-tolerant systems. It supports 1.3 Gbps data rates, delivers <10 ps typical channel-to-channel output skew, and accepts LVDS/LVPECL/CML inputs while driving LVPECL outputs - enabling redundant transmission paths in optical networking line cards and base station backplanes.

For engineers reviewing the SN65LVCP23DR datasheet, SN65LVCP23DR pinout, SN65LVCP23DR application, or SN65LVCP23DR equivalent, this device is selected for gigabit-level signal integrity-critical roles including protection switching, clock distribution, and HDTV video routing where sub-100 ps jitter and precise timing alignment are mandatory.

Technical Context

The SN65LVCP23DR implements a fully differential data path with wide common-mode input range (0 V to 4 V), allowing interoperability across LVDS, LVPECL, and CML signaling standards. Its dual-channel architecture supports configurable modes: 2:1 multiplexing, 1:2 demultiplexing, repeater, and signal splitting - all with independent enable (EN0/EN1) and select (SEL0/SEL1) control.

Each channel features LVPECL drivers with 600–1000 mV differential output voltage (VOD), 750 ps typical propagation delay, and 1.7 ns typical switch time. The device maintains <50 ps max channel-to-channel skew in splitter mode and adds only 50 ps peak-to-peak jitter at 1.3 Gbps with 2²³−1 PRBS pattern.

Key Specifications

Pinout & Package

SN65LVCP23DR is available in a 16-pin TSSOP package (PW), 5.0 mm × 4.4 mm footprint, 1.2 mm max height, with lead finish NIPDAU and moisture sensitivity level 1 (260°C reflow).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed differential crosspoint switching applications.

Compared with SN65LVCP23DR, SN65LVCP22DR offers LVDS-only I/O and lower speed, while MAX9119ESE+ integrates termination but lacks LVPECL output drive and CML input support - making SN65LVCP23DR uniquely suited for mixed-signaling, high-reliability telecom and video infrastructure.

Availability

SN65LVCP23DR is available at Aetrix Electronics and suitable for optical networking line cards, base station protection switching, and HDTV video routing requiring stable component supply across extended product lifecycles.

Supply support for SN65LVCP23DR 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 high-speed interface solutions with decades of reliability in communications infrastructure.

The SN65LVCP23DR belongs to TI's high-speed interface portfolio, engineered specifically for fault-tolerant serial data routing in optical networking, wireless base stations, and broadcast video systems.

FAQ

What signaling standards does the SN65LVCP23DR support on its inputs?

The SN65LVCP23DR accepts LVDS, LVPECL, and CML signals on its IN0 and IN1 differential inputs due to its 0 V to 4 V common-mode input voltage range. This eliminates the need for external level translators when interfacing with mixed-signaling backplanes. Each input pair operates independently, and the device maintains specified timing and jitter performance across all supported standards at up to 1.3 Gbps. SN65LVCP23DR datasheets confirm compatibility via DC input thresholds and AC waveform validation.

How is the routing configuration controlled on the SN65LVCP23DR?

The SN65LVCP23DR uses two digital control pins - SEL0 and SEL1 - to configure its 2×2 crosspoint matrix. Logic combinations define four modes: 00 (IN0→OUT0, IN1→OUT1), 01 (IN0→OUT1, IN1→OUT0), 10 (IN0→both outputs), and 11 (IN1→both outputs). EN0 and EN1 provide per-output enable/disable, allowing independent gating. All control inputs are CMOS/TTL-compatible (VIH ≥ 2 V, VIL ≤ 0.8 V at VCC = 3.3 V), and SN65LVCP23DR timing specs include setup/hold requirements for reliable state transitions.

What is the maximum operating frequency and data rate supported by the SN65LVCP23DR?

The SN65LVCP23DR supports a maximum operating frequency of 1 GHz and a guaranteed data rate of 1.3 Gbps, validated using 2²³−1 PRBS patterns and K28.5 sequences. Its 750 ps typical propagation delay and <50 ps channel skew ensure signal integrity at these speeds. The device meets jitter specifications (50 ps peak-to-peak added jitter) up to 1.3 Gbps with VIC = 1.2 V and VID = 200 mV - key metrics confirmed in the SN65LVCP23DR datasheet Figure 8–13.

Does the SN65LVCP23DR require external termination resistors?

Yes, the SN65LVCP23DR requires external 50 Ω termination to VTT (VCC − 2.0 V) on each LVPECL output (OUT0+/−, OUT1+/−), as specified in TI's recommended application circuit (Figure 2). Inputs do not require external termination; internal 300 kΩ pull-up/pull-down networks bias unused inputs. The SN65LVCP23DR datasheet explicitly states that proper termination is mandatory to achieve rated VOD (600–1000 mV) and jitter performance - omitting it degrades signal integrity and may violate LVPECL compliance.

What package options are available for the SN65LVCP23DR?

The SN65LVCP23DR is offered exclusively in the 16-pin TSSOP (PW) package: 5.0 mm × 4.4 mm body, 0.65 mm pitch, 1.2 mm max height, with NIPDAU lead finish and MSL Level-1 rating. Unlike the non-R variant SN65LVCP23PW, the "R" suffix denotes tape-and-reel packaging (2000 units per reel). The SOIC (D) variant (SN65LVCP23D) exists but is not designated "DR"; SN65LVCP23DR refers specifically to the TSSOP tape-and-reel version per TI's ordering information.