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Texas Instruments SN65LVCP402RGER
- Part No.:
- SN65LVCP402RGER
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
SN65LVCP402RGER.pdf
- Description:
- IC CROSSPOINT SW 1 X 2:2 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,060
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Product details
Overview
SN65LVCP402RGER from Texas Instruments is a 2×2 non-blocking gigabit crosspoint switch IC for high-speed serial data routing in telecom and datacom backplanes. It supports up to 4.25 Gbps per lane, delivers 30 ps deterministic jitter, integrates 100-Ω differential on-die termination, and operates from a single 3.3-V supply across –40°C to 85°C.
For engineers reviewing the SN65LVCP402RGER datasheet, SN65LVCP402RGER pinout, SN65LVCP402RGER application, or SN65LVCP402RGER equivalent, this page provides verified technical context, real-world signal integrity performance (pre-emphasis, equalization), flow-through QFN package layout guidance, and validated alternatives for XAUI, FR4 backplane, and redundant switching designs.
Technical Context
The SN65LVCP402RGER implements a fully differential VML signaling architecture with integrated CML-compatible inputs and VML outputs. Its non-blocking 2×2 matrix enables any input (1A/1B or 2A/2B) to be routed to either output (1Y/1Z or 2Y/2Z) via LVTTL S1/S2 control signals.
Each channel includes independent transmit pre-emphasis (0/3/6/9 dB selectable per lane) and receive equalization (5 dB or 12 dB), with deterministic jitter reduction confirmed over 20–43 inch FR4 traces. Propagation delay is 500 ps typical, and pulse skew is ≤20 ps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | Up to 4.25 Gbps - supports XAUI 802.3ae protocol at full line rate |
| Deterministic jitter | 30 ps peak-to-peak - measured at 4 Gbps with 0 dB pre-emphasis, enabling clean eye opening on FR4 |
| Pre-emphasis levels | 0/3/6/9 dB per channel - matches trace loss profiles from 10 to 40 inches of FR4 |
| Equalization gain | 5 dB or 12 dB - compensates for frequency-dependent ISI on short or long backplane traces |
| Supply voltage | 3.3 V ±5% - single-rail operation simplifies power delivery vs dual-supply alternatives |
| Power dissipation | 290 mW typical - low active power enables dense board placement without thermal derating |
| Termination | Integrated 100-Ω differential on-die resistors - eliminates four external 50-Ω resistors per channel |
Pinout & Package
VQFN-24 (RGE) package, 4 mm × 4 mm, 1 mm max height, exposed thermal pad requiring connection to ground plane via thermal vias. Flow-through pinout minimizes PCB trace crossovers and maintains signal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 18 (S1, S2) | LVTTL switch control | Selects input source per output channel; logic 0 routes 1A/1B, logic 1 routes 2A/2B |
| 2, 5 (1A, 1B); 3, 6 (2A, 2B) | Differential CML inputs | Accept 100–1750 mVPP differential signals; internally terminated to VBB bias |
| 13, 14 (1Z, 1Y); 16, 17 (2Z, 2Y) | Differential VML outputs | Drive 100-Ω loads with 1000–1300 mVPP swing; support pre-emphasis and 3-state |
| 7, 24 (xDE) | LVTTL output enable | Active-low; places outputs in high-impedance state for power savings or bus sharing |
| 8, 12, 19 (VCC) | Power supply | Three dedicated 3.3-V pins reduce IR drop and improve PSRR |
| 4 (VBB) | Input bias reference | Self-biasing node; left floating for AC coupling, driven for DC coupling common-mode control |
| 11, 15, 20 (GND) | Ground | Three GND pins plus exposed thermal pad ensure low-inductance return path |
| 23 (EQ) | LVTTL equalization select | EQ=1 → 5 dB gain; EQ=0 → 12 dB gain - sets compensation level for trace length |
| 9, 10, 21, 22 (P11–P22) | LVTTL pre-emphasis control | Two bits per channel set pre-emphasis level (0/3/6/9 dB) independently |
Key Features
| Feature | Design Value |
|---|---|
| Non-blocking 2×2 crosspoint | Enables dynamic reconfiguration of high-speed links without data interruption |
| Per-lane pre-emphasis | Four selectable levels (0–9 dB) compensate for channel loss while minimizing overshoot |
| Receiver equalization | 5 dB or 12 dB programmable gain restores signal integrity degraded by FR4 dispersion |
| Integrated 100-Ω termination | Reduces BOM count and layout area; eliminates external resistor matching errors |
| Flow-through pinout | Minimizes layer transitions and stubs - critical for maintaining <100 ps skew at 4.25 Gbps |
Applications
| XAUI Backplane Redundancy | High-Speed Network Routing |
|---|---|
Use Scenario: Dual-path XAUI 802.3ae links between line cards and switch fabric with automatic failover. IC Role / Device Role / Timing Role: Crosspoint switch providing hot-swappable path selection and signal regeneration. Use Value: Enables seamless redundancy switching with <6 ns propagation delay and sub-30 ps deterministic jitter. | Use Scenario: Reconfigurable interconnect between ASICs and SerDes PHYs in modular routers. IC Role / Device Role / Timing Role: Signal router supporting multiple protocol rates (1.25–4.25 Gbps) with minimal latency. Use Value: Eliminates need for discrete multiplexers and external terminations, reducing board space by >30%. |
| Wireless Base Station IF Switching | Telecom Line Card Aggregation |
Use Scenario: Dynamic assignment of CPRI/OBSAI baseband signals between transceivers and digital units. IC Role / Device Role / Timing Role: High-fidelity analog front-end signal switch preserving signal integrity across RF processing chains. Use Value: Maintains EVM compliance with 1300 mVPP output swing and 1.65 V common-mode voltage stability. | Use Scenario: Consolidating multiple TDM or packet streams onto shared backplane lanes in carrier-grade line cards. IC Role / Device Role / Timing Role: Low-skew, low-jitter data concentrator enabling time-sensitive traffic prioritization. Use Value: Achieves <25 ps output skew and 331 mW 3-state power for burst-mode operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed crosspoint switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65LVCP22RGER | 2×2 crosspoint with identical pinout but no receive equalization; max 3.125 Gbps | Suitable only for shorter FR4 traces (<15 inches) where equalization not required | Choose when cost sensitivity outweighs need for long-trace jitter correction |
| DS25BR120TSQ/NOPB | 2×2 CML crosspoint with 3.125 Gbps rating, no pre-emphasis, 1.8-V supply | Requires level-shifting for 3.3-V systems; lower power but limited trace reach | Prefer for ultra-low-power, short-reach applications with existing 1.8-V infrastructure |
Compared with SN65LVCP22RGER and DS25BR120TSQ/NOPB, the SN65LVCP402RGER uniquely combines 4.25 Gbps operation, per-lane pre-emphasis, and dual-mode equalization - making it the only option qualified for XAUI-compliant 40-inch FR4 backplanes without external signal conditioning.
Availability
SN65LVCP402RGER is available at Aetrix Electronics and suitable for telecom line card design, wireless base station IF routing, and XAUI backplane redundancy requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for SN65LVCP402RGER 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, signal integrity, and system-level integration.
The SN65LVCP402RGER belongs to TI's high-speed interface portfolio designed specifically for backplane and midplane signal routing in telecom, datacom, and wireless infrastructure equipment operating at multi-gigabit data rates.
FAQ
What is the maximum supported data rate for SN65LVCP402RGER?
The SN65LVCP402RGER supports up to 4.25 Gbps per lane, as specified in the official TI datasheet SLLS699A. This rating is validated under recommended operating conditions (3.3 V supply, –40°C to 85°C) using PRBS27-1 patterns and confirmed with jitter measurements showing ≤30 ps deterministic jitter at full rate. The SN65LVCP402RGER achieves this performance using VML signaling with integrated equalization and pre-emphasis.
Does SN65LVCP402RGER require external termination resistors?
No, the SN65LVCP402RGER integrates 100-Ω differential on-die termination resistors for both inputs and outputs, eliminating the need for external 50-Ω resistors per differential pair. This reduces PCB area, component count, and layout complexity. External termination is only required if custom impedance values or AC-coupling networks are needed beyond the internal 100-Ω match. The SN65LVCP402RGER datasheet confirms this in the "Integrated Termination Resistors" feature list and electrical characteristics table.
How does the EQ pin affect SN65LVCP402RGER performance?
The EQ pin on the SN65LVCP402RGER selects between two receive equalization gains: EQ = 1 enables 5 dB gain (optimized for ~25-inch FR4 traces), and EQ = 0 enables 12 dB gain (for ~43-inch FR4). This setting directly compensates for frequency-dependent loss in backplane channels, reducing deterministic jitter by up to 60 ps. The SN65LVCP402RGER's equalizer operates between 375 MHz and 1.875 GHz, and its effect is measurable in eye diagram opening and BER improvement.
Can SN65LVCP402RGER operate with AC-coupled inputs?
Yes, the SN65LVCP402RGER supports AC-coupled inputs. When AC-coupled, the VBB pin should be left floating to allow the internal self-biasing network to establish the optimal common-mode voltage (~1.6 V). This configuration is explicitly recommended in the TI datasheet for best jitter performance. The SN65LVCP402RGER input stage is designed for CML compatibility and handles the resulting DC offset automatically without external biasing components.
What package type and thermal requirements apply to SN65LVCP402RGER?
The SN65LVCP402RGER uses a 24-pin VQFN (RGE) package measuring 4 mm × 4 mm with 1 mm max height and an exposed thermal pad. TI specifies θJA = 55.4°C/W with four 22-mil thermal vias to GND, requiring the thermal pad to be soldered to a solid ground plane. The device is rated for –40°C to 85°C operation, and the MSL rating is Level-3 (260°C peak reflow). The SN65LVCP402RGER's thermal design is validated in TI application note SPRA953.
SN65LVCP402RGER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 65LVCP
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Crosspoint Switch
- Circuit:
- 1 x 2:2
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 3.14V ~ 3.47V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-VQFN (4x4)
SN65LVCP402RGER FAQ
1.How can I place an order for SN65LVCP402RGER through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65LVCP402RGER 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 SN65LVCP402RGER reliable?
The price and inventory of SN65LVCP402RGER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65LVCP402RGER is usually 5 days.
3.What payment methods are accepted for SN65LVCP402RGER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65LVCP402RGER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65LVCP402RGER?
SN65LVCP402RGER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65LVCP402RGER 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 SN65LVCP402RGER?
For technical support, including SN65LVCP402RGER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65LVCP402RGER requirements.
6.How does Aetrix verify that SN65LVCP402RGER is sourced from the original manufacturer or authorized distributors?
All SN65LVCP402RGER 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 SN65LVCP402RGER meets industry standards.
7.What is the process for return or replacement of SN65LVCP402RGER?
All SN65LVCP402RGER units undergo pre-shipment inspection (PSI). If there is an issue with SN65LVCP402RGER, 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 SN65LVCP402RGER part is unused and in its original packaging.
Return procedure for SN65LVCP402RGER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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