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Texas Instruments DS25CP102QSQX/NOPB
- Part No.:
- DS25CP102QSQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
DS25CP102QSQX/NOPB.pdf
- Description:
- IC CROSSPOINT SW 1 X 2:2 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,460
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Product details
Overview
DS25CP102QSQX/NOPB from Texas Instruments is a 3.125 Gbps 2×2 LVDS crosspoint switch with pin-selectable transmit pre-emphasis and receive equalization, internally terminated with 100 Ω differential resistors on all I/Os, operating from 3.0–3.6 V supply, and optimized for lossy FR-4 backplane routing in SD/HD/3G-SDI routers.
For engineers reviewing the DS25CP102QSQX/NOPB datasheet, DS25CP102QSQX/NOPB pinout, DS25CP102QSQX/NOPB application, or DS25CP102QSQX/NOPB equivalent, this page delivers verified signal integrity specs (≤25 ps channel skew, ≤0.11 UIP-P total jitter at 3.125 Gbps), WQFN-16 package layout guidance, and validated alternatives for high-speed serial switching in broadcast video infrastructure.
Technical Context
The DS25CP102QSQX/NOPB implements a fully differential, non-blocking 2×2 architecture enabling any input (IN0/IN1) to drive either or both outputs (OUT0/OUT1) via LVCMOS SEL0/SEL1 control. Its dual-level pre-emphasis (Off/On) and equalization (Off/On) are independently configured per channel group using dedicated PE and EQ pins.
Input common-mode range spans 0.05 V to VCC−0.05 V, supporting DC-coupled interfacing with LVDS, CML, and LVPECL sources; outputs comply strictly with LVDS voltage standards (VOD = 250–450 mV, VOS = 1.05–1.375 V) and feature integrated 100 Ω output termination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 3.125 Gbps - supports OC-48/STM-16 and 3G-SDI line rates without retiming |
| Channel Skew | ≤25 ps - ensures timing alignment across output paths in broadcast routing applications |
| Total Jitter | ≤0.11 UIP-P at 3.125 Gbps - meets SDI eye mask compliance with EQ/PE enabled |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails and industrial temperature range (−40°C to +85°C) |
| I/O Termination | Integrated 100 Ω differential - eliminates external resistors, reduces board space, and minimizes return loss |
| ESD Protection | ±8 kV HBM on LVDS I/O - safeguards against handling damage in production and field deployment |
Pinout & Package
DS25CP102QSQX/NOPB uses a 4 mm × 4 mm WQFN-16 package (RGH0016A) with exposed thermal pad (DAP) and flow-through pinout for minimal trace stubs and simplified PCB routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+, IN0− | LVDS Input Pair 0 | Differential high-speed data input accepting LVDS/CML/LVPECL levels; internally 100 Ω terminated |
| IN1+, IN1− | LVDS Input Pair 1 | Second independent differential input; same interface flexibility and termination as IN0 |
| OUT0+, OUT0− | LVDS Output Pair 0 | LVDS-compliant output (250–450 mV diff swing); 100 Ω internal termination enables direct connection to receivers |
| OUT1+, OUT1− | LVDS Output Pair 1 | Independent second LVDS output; supports broadcast or crosspoint routing without external buffering |
| SEL0, SEL1 | Configuration Control | LVCMOS inputs setting switch matrix state (IN0→OUT0/OUT1, IN1→OUT0/OUT1); 20 kΩ pulldown default |
| EN0, EN1 | Output Enable | LVCMOS enables for OUT0 and OUT1 individually; allows power-gated output control during idle periods |
| PE | Pre-Emphasis Select | LVCMOS input selecting Off/On pre-emphasis to compensate high-frequency loss on long FR-4 traces |
| EQ | Equalization Select | LVCMOS input selecting Off/On receive equalization to restore signal integrity at receiver input |
| VCC | Power Supply | 3.0–3.6 V analog/digital supply; decoupling required near pin 16 per layout guidelines |
| GND, DAP | Ground / Thermal Pad | Primary ground connections plus exposed thermal pad requiring soldered PCB thermal via array for thermal reliability |
Key Features
| Feature | Design Value |
|---|---|
| Pin-configurable pre-emphasis | Two-level (Off/On) transmit boost applied per output pair to counteract FR-4 insertion loss up to 40″ stripline |
| Pin-selectable equalization | Two-level (Off/On) receive gain applied per input pair to recover degraded eye opening after channel loss |
| Wide input common-mode range | 0.05 V to VCC−0.05 V enables direct DC coupling to LVPECL (−1.3 V ref), CML (0 V ref), and LVDS (1.2 V ref) drivers |
| On-chip 100 Ω I/O termination | Eliminates 8 external 100 Ω resistors, reduces BOM count, improves impedance matching, and shrinks layout area |
| Flow-through WQFN-16 pinout | Input-to-output signal path alignment minimizes trace length asymmetry and simplifies high-speed layout verification |
Applications
| SD/HD/3G-SDI Router Core | OC-48/STM-16 Line Card Switching |
|---|---|
Use Scenario: Signal routing between multiple video sources and destinations in broadcast-grade SDI distribution frames. IC Role / Device Role / Timing Role: 2×2 LVDS crosspoint switch providing low-jitter, non-blocking path selection with adaptive equalization for cable-run compensation. Use Value: Maintains SMPTE 424M eye compliance over 100+ meter coaxial runs by enabling EQ/PE configuration per input/output pair. |
Use Scenario: High-speed data multiplexing in telecom line cards handling OC-48 (2.488 Gbps) SONET signals. IC Role / Device Role / Timing Role: Loss-compensating LVDS switch routing clock+data between framer, PHY, and backplane interfaces. Use Value: Achieves <0.11 UIP-P total jitter at 2.5 Gbps with EQ enabled, meeting GR-253-CORE jitter budget requirements. |
| High-Speed Channel Selection | Clock and Data Buffering/Muxing |
Use Scenario: Dynamic selection of active high-speed serial links in test equipment or FPGA-based protocol analyzers. IC Role / Device Role / Timing Role: Low-skew (<25 ps) signal path selector enabling real-time reconfiguration without retiming. Use Value: Enables sub-ns switching latency and deterministic delay across paths-critical for time-sensitive instrumentation triggers. |
Use Scenario: Fanout and level translation of reference clocks or serialized data streams in multi-FPGA systems. IC Role / Device Role / Timing Role: Dual-output LVDS buffer with independent enable control (EN0/EN1) for selective clock gating. Use Value: Reduces clock tree skew while eliminating need for discrete 100 Ω termination networks on each output branch. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS crosspoint switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS25CP104QSQX/NOPB | 4×4 LVDS crosspoint; identical PE/EQ architecture, higher channel count, 24-pin WQFN | Required for >2 input/output routing; larger footprint and higher supply current (125 mA typical) | Select when system requires expansion beyond 2×2 topology without redesigning signal integrity layout. |
| LMH2190IRGET | 2×2 LVDS switch with fixed 3.125 Gbps operation; no PE/EQ; 16-pin QFN; lower jitter (0.05 UIP-P) but no channel loss compensation | Suitable only for short-reach (<10″ FR-4) or backplane-integrated designs where EQ/PE is unnecessary | Choose for cost-sensitive, low-loss interconnects where adaptive equalization adds no value and BOM simplicity is prioritized. |
Compared with DS25CP102QSQX/NOPB, DS25CP104QSQX/NOPB scales channel count at the expense of layout area and power, while LMH2190IRGET trades adaptability for lower base jitter and reduced component count-making DS25CP102QSQX/NOPB the optimal balance of loss compensation, compactness, and routing flexibility for mid-length FR-4 backplanes.
Availability
DS25CP102QSQX/NOPB is available at Aetrix Electronics and suitable for SD/HD/3G-SDI router design, OC-48 line card development, and high-speed channel selection applications requiring stable component supply across extended production lifecycles.
Supply support for DS25CP102QSQX/NOPB 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 signal chain integrity and industrial reliability.
The DS25CP102QSQX/NOPB belongs to TI's high-speed interface portfolio, engineered specifically for lossy PCB backplane and balanced cable routing in broadcast video and telecom infrastructure.
FAQ
What is the maximum supported data rate for DS25CP102QSQX/NOPB?
The DS25CP102QSQX/NOPB is specified and characterized up to 3.125 Gbps, meeting the full bandwidth requirement for 3G-SDI (2.97 Gbps) and OC-48/STM-16 (2.488 Gbps) applications. Performance data-including jitter and skew-is guaranteed across this range under recommended operating conditions (VCC = 3.0–3.6 V, TA = −40°C to +85°C).
Does DS25CP102QSQX/NOPB require external termination resistors?
No. DS25CP102QSQX/NOPB integrates 100 Ω differential termination on all four LVDS I/O pairs (IN0, IN1, OUT0, OUT1), eliminating the need for eight external 100 Ω resistors. This reduces component count, saves PCB area, and improves impedance matching consistency across high-speed paths.
How does the pre-emphasis function in DS25CP102QSQX/NOPB improve signal integrity?
The DS25CP102QSQX/NOPB applies programmable high-frequency boost (pre-emphasis) to its LVDS outputs via the PE pin. When enabled, it compensates for frequency-dependent loss in FR-4 striplines-e.g., reducing residual jitter by up to 50% on 40″ traces at 3.125 Gbps-without altering DC levels or requiring receiver-side adaptation.
Can DS25CP102QSQX/NOPB interface directly with LVPECL drivers?
Yes. DS25CP102QSQX/NOPB accepts LVPECL signals via DC-coupled connection due to its wide input common-mode range (0.05 V to VCC−0.05 V). The internal 100 Ω termination provides proper loading, and no level-shifting components are needed-verified in TI's Figure 12 application circuit.
What package type and thermal considerations apply to DS25CP102QSQX/NOPB?
DS25CP102QSQX/NOPB uses the RGH0016A 4 mm × 4 mm WQFN-16 package with an exposed thermal pad (DAP). TI specifies soldering the DAP to a thermally robust PCB copper area with ≥4 vias to internal ground planes to maintain junction temperature within limits (θJA = 41.8°C/W, θJC = 6.9°C/W).
DS25CP102QSQX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WFQFN 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:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (4x4)
DS25CP102QSQX/NOPB FAQ
1.How can I place an order for DS25CP102QSQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS25CP102QSQX/NOPB 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 DS25CP102QSQX/NOPB reliable?
The price and inventory of DS25CP102QSQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS25CP102QSQX/NOPB is usually 5 days.
3.What payment methods are accepted for DS25CP102QSQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS25CP102QSQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS25CP102QSQX/NOPB?
DS25CP102QSQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS25CP102QSQX/NOPB 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 DS25CP102QSQX/NOPB?
For technical support, including DS25CP102QSQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS25CP102QSQX/NOPB requirements.
6.How does Aetrix verify that DS25CP102QSQX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS25CP102QSQX/NOPB 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 DS25CP102QSQX/NOPB meets industry standards.
7.What is the process for return or replacement of DS25CP102QSQX/NOPB?
All DS25CP102QSQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS25CP102QSQX/NOPB, 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 DS25CP102QSQX/NOPB part is unused and in its original packaging.
Return procedure for DS25CP102QSQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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