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Texas Instruments SN65LVCP202RGET
- Part No.:
- SN65LVCP202RGET
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
SN65LVCP202RGET.pdf
- Description:
- IC CROSSPOINT SW 1 X 2:2 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:142
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Product details
Overview
SN65LVCP202RGET from Texas Instruments is a 2 × 2 nonblocking gigabit crosspoint switch supporting up to 2.5-Gbps data rates, featuring VML differential signaling, selectable per-lane transmit preemphasis (0–9 dB), integrated receive equalization (5 dB or 12 dB), and on-die 100-Ω differential termination. It serves as a high-speed signal routing element in telecom backplane interconnects and wireless base station I/O consolidation.
For engineers reviewing the SN65LVCP202RGET datasheet, SN65LVCP202RGET pinout, SN65LVCP202RGET application, or SN65LVCP202RGET equivalent, key selection criteria include deterministic jitter (30 ps peak-to-peak at 2.5 Gbps), propagation delay (500 ps typical), flow-through QFN-24 pinout for PCB layout simplification, and LVTTL control interface compatibility with 3.3-V supply operation.
Technical Context
The SN65LVCP202RGET implements a fully differential, nonblocking 2×2 crosspoint architecture with two independent 2:1 multiplexers-one per output channel-enabling any input (1A/1B or 2A/2B) to be routed to either output (1Y/1Z or 2Y/2Z). Each path supports CML-compatible inputs and VML outputs with internal 100-Ω differential termination.
It integrates dual-stage signal conditioning: a passive receiver equalizer providing 5-dB or 12-dB gain (selectable via EQ pin) to compensate for FR4 trace loss, and programmable transmitter preemphasis (0/3/6/9 dB via P11–P22 pins) to counteract high-frequency attenuation. Propagation delay skew between outputs is ≤25 ps, and part-to-part skew is ≤300 ps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | Up to 2.5 Gbps - supports PCIe Gen1, SATA I, and Gigabit Ethernet physical layer links |
| Deterministic jitter | 30 ps peak-to-peak at 2.5 Gbps - ensures reliable bit-error-rate performance over 20-inch FR4 traces |
| Propagation delay | 500 ps typical - enables precise timing alignment in multi-channel serial interconnects |
| Supply voltage | 3.3 V ±5% - compatible with standard logic rails and low-noise power domains |
| Power dissipation | 290 mW typical - optimized for dense board layouts with thermal pad grounding |
| Input compatibility | CML-level signals - interoperable with TI's SN65LVDS series and other CML transceivers |
| Output drive | VML differential outputs with 1300 mVPP typical swing into 100 Ω - maintains signal integrity without external termination |
Pinout & Package
The SN65LVCP202RGET is housed in a 24-pin VQFN package (RGE) with 4 mm × 4 mm body, 0.5-mm pitch, and exposed thermal pad. The flow-through pinout minimizes trace crossovers and supports straight-line PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 1B, 2A, 2B | Differential inputs | CML-compatible line-side inputs with internal 50-Ω termination to VBB; accept 100–1750 mVPP differential swing |
| 1Y, 1Z, 2Y, 2Z | Differential outputs | VML outputs with 100-Ω on-die termination; support 1000–1500 mVPP differential swing into 100 Ω load |
| 1DE, 2DE | Active-low enable | LVTTL control; drives outputs to Hi-Z when low - enables power gating and dynamic channel shutdown |
| S1, S2 | Multiplexer select | LVTTL inputs selecting input source per output channel (0 = 1A/1B, 1 = 2A/2B) |
| P11–P22 | Preemphasis control | 2-bit LVTTL per channel (Px2, Px1) setting preemphasis level: 00=0 dB, 01=3 dB, 10=6 dB, 11=9 dB |
| EQ | Equalization select | LVTTL input selecting receive EQ gain: EQ=1 → 5 dB, EQ=0 → 12 dB - matches trace loss profiles |
| VCC (pins 8,12,19) | Power supply | 3.3-V main supply; three dedicated pins reduce IR drop and improve PSRR |
| GND (pins 11,15,20) | Ground | Three ground pins plus exposed thermal pad - mandatory connection to PCB ground plane via thermal vias |
| VBB (pin 4) | Bias reference | Receiver self-bias voltage (1.6 V) for AC-coupled CML inputs - eliminates need for external bias network |
Key Features
| Feature | Design Value |
|---|---|
| Nonblocking 2×2 crosspoint | Enables simultaneous independent routing of two high-speed serial lanes without contention or arbitration delay |
| Selectable per-lane preemphasis | Four discrete levels (0/3/6/9 dB) allow fine-tuning of transmitter boost to match specific FR4 trace lengths (10–40 inches) |
| Programmable receive equalization | Two gain settings (5 dB or 12 dB) compensate for frequency-dependent loss in backplane channels up to 43 inches |
| Integrated 100-Ω differential termination | Eliminates four external 100-Ω resistors per channel - saves board space and reduces BOM count in compact designs |
| Flow-through QFN-24 pinout | Input and output pairs aligned on opposite sides - enables direct trace routing with minimal layer transitions and stubs |
Applications
| Wireless Base Station Backhaul | High-Speed Network Router Fabric |
|---|---|
Use Scenario: Interconnecting RF transceiver modules and digital baseband processors across a 24-layer FR4 backplane with 30-inch differential traces. IC Role / Device Role / Timing Role: Crosspoint switch routing CPRI/OBSAI data streams between multiple transceivers and FPGA-based processing units. Use Value: 12-dB receive EQ and 9-dB preemphasis restore eye opening degraded by 24-inch FR4 loss, reducing BER below 10⁻¹² without retiming. | Use Scenario: Aggregating 2.5-Gbps Ethernet and Fibre Channel links in a modular line card with hot-swappable interfaces. IC Role / Device Role / Timing Role: Signal router enabling flexible port mapping between PHYs and MAC-layer ASICs in multi-protocol switching fabric. Use Value: 30-ps deterministic jitter and 25-ps output skew preserve signal integrity across 16-lane parallel interconnects, meeting IEEE 802.3 compliance margins. |
| Telecom Line Card Interconnect | Optical Transport Network (OTN) Shelf Management |
Use Scenario: Consolidating serial data paths from multiple TDM framer ICs onto shared SerDes lanes in a carrier-grade line card. IC Role / Device Role / Timing Role: Low-latency crosspoint enabling dynamic reconfiguration of SONET/SDH tributary mappings under software control. Use Value: 500-ps propagation delay and Hi-Z enable support sub-ns timing alignment for synchronous payload switching with zero frame slip. | Use Scenario: Routing management and control-plane signals (e.g., I²C, JTAG, GPIO) between shelf controller and pluggable OTU modules. IC Role / Device Role / Timing Role: High-reliability signal switch isolating faulted modules while maintaining active link continuity during hot-swap events. Use Value: LVTTL-compatible control inputs and 290-mW typical power enable integration into thermally constrained shelf controllers without forced-air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed crosspoint switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65LVCP204RGER | 4×4 configuration, same 2.5-Gbps rating, identical EQ/preemphasis architecture, but larger 32-pin RGR package | Supports four independent lanes instead of two - suitable for higher-port-density systems requiring >2 lane routing | Choose when expanding from dual-lane to quad-lane routing without redesigning signal conditioning strategy |
| MAX9113ESE+ | 2×2 LVDS crosspoint, max 1.5 Gbps, no built-in EQ/preemphasis, requires external termination, SOIC-16 package | Targeted at lower-speed industrial control buses rather than telecom backplanes - lacks FR4 loss compensation | Consider only for cost-sensitive, short-trace (<6 inch) applications where jitter budget allows relaxed specs |
Compared with SN65LVCP204RGER and MAX9113ESE+, the SN65LVCP202RGET delivers optimal trade-off of density, signal integrity, and board-area efficiency for dual-lane 2.5-Gbps backplane interconnects - its integrated 100-Ω termination and flow-through QFN-24 footprint reduce layout complexity versus both alternatives.
Availability
SN65LVCP202RGET is available at Aetrix Electronics and suitable for wireless infrastructure, telecom line cards, and high-speed network routing applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN65LVCP202RGET 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The SN65LVCP202RGET belongs to TI's LVCP (Low-Voltage CrossPoint) family, engineered specifically for high-speed serial interconnects in telecom and datacom equipment where deterministic jitter, trace-length adaptability, and board-space efficiency are critical design constraints.
FAQ
What is the maximum supported data rate for the SN65LVCP202RGET?
The SN65LVCP202RGET supports operation up to 2.5 Gbps per lane, verified across the full –40°C to 85°C temperature range with PRBS27–1 test patterns. At this rate, deterministic jitter remains at 30 ps peak-to-peak, and differential output voltage is specified at 1000–1500 mVPP into a 100-Ω load. This makes the SN65LVCP202RGET suitable for Gigabit Ethernet, CPRI, and early-generation PCIe applications.
Does the SN65LVCP202RGET require external termination resistors?
No, the SN65LVCP202RGET integrates 100-Ω differential termination on-chip for all four outputs (1Y/1Z and 2Y/2Z), eliminating the need for external 100-Ω resistors. Inputs feature internal 50-Ω termination to VBB, compatible with CML sources. This integration reduces PCB area, BOM count, and potential impedance mismatches - a key advantage over discrete termination solutions.
How does the EQ pin affect signal integrity in the SN65LVCP202RGET?
The EQ pin on the SN65LVCP202RGET selects between two receive equalization gains: EQ = 1 enables 5-dB boost (optimized for ~25-inch FR4 traces), and EQ = 0 enables 12-dB boost (for ~43-inch traces). This compensates for frequency-dependent loss in backplane channels, reducing deterministic jitter by up to 60 ps and significantly improving eye height and width at the output - directly enhancing bit-error-rate performance.
What is the function of the P11–P22 pins on the SN65LVCP202RGET?
The P11–P22 pins on the SN65LVCP202RGET are 2-bit LVTTL control inputs that set the transmit preemphasis level per output channel: P12/P11 configures Channel 1 (00 = 0 dB, 01 = 3 dB, 10 = 6 dB, 11 = 9 dB), and P22/P21 configures Channel 2. This allows independent optimization of transmitter boost for mismatched trace lengths, maximizing signal integrity without requiring identical routing topologies for both lanes.
Is the SN65LVCP202RGET pin-compatible with other devices in the LVCP family?
The SN65LVCP202RGET shares the same 24-pin VQFN (RGE) package and core pinout with SN65LVCP202RGER, differing only in tape-and-reel quantity (250 vs. 3000 units). However, it is not pin-compatible with SN65LVCP204RGER (32-pin RGR) or SN65LVCP201 (2×1 mux). Control logic and signal routing remain consistent across the 202-series variants, enabling drop-in replacement within the same package variant.
SN65LVCP202RGET 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)
SN65LVCP202RGET FAQ
1.How can I place an order for SN65LVCP202RGET through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65LVCP202RGET 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 SN65LVCP202RGET reliable?
The price and inventory of SN65LVCP202RGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65LVCP202RGET is usually 5 days.
3.What payment methods are accepted for SN65LVCP202RGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65LVCP202RGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65LVCP202RGET?
SN65LVCP202RGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65LVCP202RGET 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 SN65LVCP202RGET?
For technical support, including SN65LVCP202RGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65LVCP202RGET requirements.
6.How does Aetrix verify that SN65LVCP202RGET is sourced from the original manufacturer or authorized distributors?
All SN65LVCP202RGET 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 SN65LVCP202RGET meets industry standards.
7.What is the process for return or replacement of SN65LVCP202RGET?
All SN65LVCP202RGET units undergo pre-shipment inspection (PSI). If there is an issue with SN65LVCP202RGET, 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 SN65LVCP202RGET part is unused and in its original packaging.
Return procedure for SN65LVCP202RGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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