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Home > Products > Integrated Circuits (ICs) > Logic > Signal Switches, Multiplexers, Decoders

Texas Instruments SN65LVCP22DG4

Name: SN65LVCP22DG4
Brand: Texas Instruments
SKU: SN65LVCP22DG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN65LVCP22DG4

Manufacturer:: Texas Instruments

Category:: Signal Switches, Multiplexers, Decoders

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: SN65LVCP22DG4.pdf

Description:: IC CROSSPOINT SW 1 X 2:2 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SN65LVCP22DG4 from Texas Instruments is a 2×2 LVDS crosspoint switch IC supporting >1 Gbps per channel, operating at 3.3 V with dual fully differential LVDS outputs and wide common-mode (0–4 V) LVDS/LVPECL/CML inputs. It enables 2:2 buffering, 2:1 multiplexing, 1:2 splitting, and LVPECL-to-LVDS level translation in optical networking line cards and fault-tolerant serial backplanes.

For engineers reviewing the SN65LVCP22DG4 datasheet, SN65LVCP22DG4 pinout, SN65LVCP22DG4 application, or SN65LVCP22DG4 equivalent, key selection criteria include channel-to-channel skew (<10 ps typ), 50 ps peak-to-peak jitter (PRBS 2²³−1), 1.7 ns typical switch time, and SOIC-16 package compatibility with legacy board layouts.

Technical Context

The SN65LVCP22DG4 implements a fully differential signal path with independent enable (EN0/EN1) and select (SEL0/SEL1) control logic to configure four functional modes: repeater, switch, or 1:2 splitter on each output. Its receiver front-end accepts LVDS, LVPECL, and CML signals across 0–4 V common-mode range without external biasing.

Each channel delivers low-jitter LVDS outputs with 285–440 mV differential voltage (RL = 75 Ω), 10–50 ps max channel-to-channel skew in splitter mode, and propagation delay of 400–1000 ps. The device operates over −40°C to +85°C with total supply current of 60–87 mA at 1 Gbps.

Key Specifications

Parameter	Value and Actual Design Meaning
Max Data Rate	1 Gbps per channel - supports OC-192/STM-64 serial links and high-speed backplane interconnects
Differential Output Voltage	285–440 mV (RL = 75 Ω) - ensures robust LVDS signaling margin into standard 100 Ω differential loads
Peak-to-Peak Jitter	50 ps (typ), 105 ps (max) with PRBS 2²³−1 - meets jitter budget for multi-gigabit clock/data recovery systems
Channel-to-Channel Skew	10 ps (typ), 50 ps (max) in splitter mode - preserves timing alignment between duplicated outputs
Switch Time	1.7 ns (typ) - enables dynamic reconfiguration of redundant paths within nanosecond-scale fault recovery windows
Supply Current	60–87 mA at 1 Gbps - enables thermal management in dense optical line card designs with multiple parallel channels
Operating Temperature	−40°C to +85°C - qualified for industrial and telecom infrastructure environments including base station cabinets

Pinout & Package

SN65LVCP22DG4 is packaged in a 16-pin SOIC (D) with 1.27 mm pitch, 10.3 mm × 6.5 mm body, and 1.75 mm max height - pin-compatible with SN65LVCP22D and SN65LVCP22DR variants for drop-in replacement in existing designs.

Pin/Terminal	Circuit Role	Design Meaning
IN0+, IN0−	Differential input channel A	Accepts LVDS/LVPECL/CML signals; common-mode range 0–4 V eliminates need for external termination biasing
IN1+, IN1−	Differential input channel B	Independent second input path enabling 2:1 multiplexing or dual-source redundancy switching
OUT0+, OUT0−	Differential output channel A	LVDS-compliant driver with 285–440 mV swing into 75 Ω load; supports point-to-point or bus topologies
OUT1+, OUT1−	Differential output channel B	Matched to OUT0 for <10 ps typ skew - critical for synchronized clock/data distribution in protection switching
SEL0, SEL1	Function configuration inputs	CMOS/TTL-level control pins selecting repeater, switch, or 1:2 splitter mode per function table
EN0, EN1	Per-output enable inputs	Independent 3-state control of each output; allows dynamic power gating and hot-swap isolation
VCC, GND	Power supply terminals	Single 3.3 V supply (3.0–3.6 V range); internal regulation eliminates need for separate analog/digital rails
NC (pins 8, 15)	No internal connection	Unbonded pads - must be left floating or grounded per PCB layout best practices for noise immunity

Key Features

Feature	Design Value
Multi-standard input compatibility	Accepts LVDS, LVPECL, and CML signals across 0–4 V common-mode range - eliminates level-shifter ICs in mixed-signaling systems
Configurable routing modes	Four modes (repeater, switch, 1:2 splitter) via SEL0/SEL1 - reduces BOM count by consolidating multiple discrete switch functions
Low-jitter differential path	50 ps peak-to-peak jitter (PRBS 2²³−1) - maintains signal integrity for 1 Gbps+ serial data recovery without additional equalization
Per-output 3-state control	Independent EN0/EN1 pins enable selective output disabling - supports hot-plug insertion and dynamic topology reconfiguration
Thermal performance	1361 mW power rating (SOIC) with 13.9 mW/°C derating - sustains full-speed operation at 85°C ambient in sealed telecom enclosures

Applications

Base Station RF Front-End	Add/Drop Multiplexer (ADM)
Use Scenario: Dynamic rerouting of CPRI/OBSAI IQ data streams between remote radio units and baseband units during maintenance or failure events. IC Role / Device Role / Timing Role: 2:1 multiplexer with sub-2 ns switch time and <10 ps output skew - ensures zero-packet-loss handover between active/standby paths. Use Value: Eliminates need for dual-path FPGA-based switching logic, reducing latency and power by >40% in 5G massive MIMO architectures.	Use Scenario: Selecting between primary and protection wavelengths in DWDM metro ADM line cards with automatic protection switching (APS). IC Role / Device Role / Timing Role: Repeater configured for simultaneous pass-through of two independent 1.25 Gbps SONET/SDH channels with matched propagation delay. Use Value: Maintains deterministic inter-channel phase alignment required for coherent detection, avoiding costly DSP compensation.
Optical Line Card Protection Switching	Serial Backplane Redundancy
Use Scenario: Fault-tolerant switching between working and protection OC-192 serial backplane links in core router line cards. IC Role / Device Role / Timing Role: 2×2 crosspoint enabling bidirectional path selection with <50 ps max channel skew - preserves bit alignment across failover. Use Value: Achieves sub-50 ns switchover time compliant with ITU-T G.841 APS requirements without custom ASIC development.	Use Scenario: Distributing a single high-speed clock or data stream to two downstream SerDes receivers in enterprise switch fabric modules. IC Role / Device Role / Timing Role: 1:2 splitter with 10 ps typ channel-to-channel skew - ensures simultaneous clock edge arrival at dual PHYs. Use Value: Removes skew-induced setup/hold violations in 10G Ethernet KR/KX4 interfaces, improving BER by 3 orders of magnitude.

Base Station RF Front-End

Add/Drop Multiplexer (ADM)

Use Scenario: Dynamic rerouting of CPRI/OBSAI IQ data streams between remote radio units and baseband units during maintenance or failure events.

IC Role / Device Role / Timing Role: 2:1 multiplexer with sub-2 ns switch time and <10 ps output skew - ensures zero-packet-loss handover between active/standby paths.

Use Value: Eliminates need for dual-path FPGA-based switching logic, reducing latency and power by >40% in 5G massive MIMO architectures.

Use Scenario: Selecting between primary and protection wavelengths in DWDM metro ADM line cards with automatic protection switching (APS).

IC Role / Device Role / Timing Role: Repeater configured for simultaneous pass-through of two independent 1.25 Gbps SONET/SDH channels with matched propagation delay.

Use Value: Maintains deterministic inter-channel phase alignment required for coherent detection, avoiding costly DSP compensation.

Optical Line Card Protection Switching

Serial Backplane Redundancy

Use Scenario: Fault-tolerant switching between working and protection OC-192 serial backplane links in core router line cards.

IC Role / Device Role / Timing Role: 2×2 crosspoint enabling bidirectional path selection with <50 ps max channel skew - preserves bit alignment across failover.

Use Value: Achieves sub-50 ns switchover time compliant with ITU-T G.841 APS requirements without custom ASIC development.

Use Scenario: Distributing a single high-speed clock or data stream to two downstream SerDes receivers in enterprise switch fabric modules.

IC Role / Device Role / Timing Role: 1:2 splitter with 10 ps typ channel-to-channel skew - ensures simultaneous clock edge arrival at dual PHYs.

Use Value: Removes skew-induced setup/hold violations in 10G Ethernet KR/KX4 interfaces, improving BER by 3 orders of magnitude.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN65LVCP22D	Identical electrical specs and pinout; differs only in RoHS finish (NIPDAU vs lead-free matte tin in DG4 variant)	No functional difference; both rated for −40°C to +85°C and support same configurations	Select SN65LVCP22D for non-RoHS-compliant legacy production; SN65LVCP22DG4 meets current JEDEC J-STD-020 moisture sensitivity Level-1 requirements
SN65LVCP22DR	Same die and SOIC-16 package; supplied in tape-and-reel (2500 pcs) vs tube (40 pcs) packaging	Identical performance; optimized for automated SMT assembly rather than prototyping or low-volume repair	Choose SN65LVCP22DR for high-volume manufacturing; SN65LVCP22DG4 suits engineering validation and small-batch builds

Compared with SN65LVCP22D and SN65LVCP22DR, the SN65LVCP22DG4 provides identical signal integrity and routing functionality but ships in tube packaging with RoHS-compliant NIPDAU plating - making it optimal for design-in verification and pilot production where traceability and compliance documentation are prioritized over reel-based automation.

Availability

SN65LVCP22DG4 is available at Aetrix Electronics and suitable for optical networking line cards, wireless base station RF modules, and serial backplane protection switching applications requiring stable component supply across extended product lifecycles.

Supply support for SN65LVCP22DG4 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 SN65LVCP22DG4 belongs to TI's LVDS crosspoint switch product line, engineered specifically for fault-tolerant serial data routing in telecom infrastructure where deterministic timing, multi-standard interoperability, and long-term supply stability are critical.

FAQ

What is the maximum supported data rate for SN65LVCP22DG4?

The SN65LVCP22DG4 supports up to 1 Gbps per channel under recommended operating conditions (VCC = 3.3 V, TA = 25°C). This is verified by TI's characterization using PRBS 2²³−1 patterns and confirmed in the switching characteristics table with fMAX = 1 GHz. Operation beyond this rate may violate jitter or skew specifications and is not guaranteed.

Does SN65LVCP22DG4 require external termination resistors?

No, the SN65LVCP22DG4 does not require external termination on its LVDS outputs - the internal driver is designed for 75 Ω load matching per output pair, as specified in the LVDS output electrical characteristics. However, external 100 Ω differential termination is required at the receiver end of the transmission line to prevent reflections.

Can SN65LVCP22DG4 accept LVPECL inputs directly?

Yes, SN65LVCP22DG4 accepts LVPECL inputs directly without level-shifting circuitry. Its wide common-mode input range (0 V to 4 V) accommodates LVPECL's typical 1.6 V–2.0 V common-mode voltage, as validated in TI's application circuits (Figure 20) and input voltage threshold testing (Table 1).

What is the function of the NC pins on SN65LVCP22DG4?

Pins 8 and 15 of the SN65LVCP22DG4 are marked NC (no internal connection) and contain no bond wires or internal circuitry. TI's package outline and pin assignment diagram confirm these are unconnected pads. They should remain unpopulated or grounded on PCB per standard noise-reduction practice - never driven or used as routing vias.

How does SN65LVCP22DG4 handle power-down states?

SN65LVCP22DG4 enters high-impedance output state when EN0 or EN1 is driven low, with disable times of 2–4 ns (tPHZ/tPLZ). Total supply current drops to 25–35 mA (ICCZ) in this mode. The device does not support full power-off; VCC must remain applied to retain configuration and avoid undefined behavior on enable transitions.

SN65LVCP22DG4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 65LVCP

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Type:: Crosspoint Switch

Circuit:: 1 x 2:2

Independent Circuits:: 1

Current - Output High, Low:: -

Voltage Supply Source:: Single Supply

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

SN65LVCP22DG4 FAQ

1.How can I place an order for SN65LVCP22DG4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SN65LVCP22DG4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SN65LVCP22DG4 reliable?

The price and inventory of SN65LVCP22DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65LVCP22DG4 is usually 5 days.

3.What payment methods are accepted for SN65LVCP22DG4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65LVCP22DG4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN65LVCP22DG4?

SN65LVCP22DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN65LVCP22DG4 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SN65LVCP22DG4?

For technical support, including SN65LVCP22DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65LVCP22DG4 requirements.

6.How does Aetrix verify that SN65LVCP22DG4 is sourced from the original manufacturer or authorized distributors?

All SN65LVCP22DG4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN65LVCP22DG4 meets industry standards.

7.What is the process for return or replacement of SN65LVCP22DG4?

All SN65LVCP22DG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN65LVCP22DG4, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SN65LVCP22DG4 part is unused and in its original packaging.

Return procedure for SN65LVCP22DG4:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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