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Texas Instruments DS25CP114TSQX/NOPB
- Part No.:
- DS25CP114TSQX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
DS25CP114TSQX/NOPB.pdf
- Description:
- IC CROSSPOINT SW 1 X 4:4 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,017
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Product details
Overview
DS25CP114TSQX/NOPB from Texas Instruments is a 3.125 Gbps 4×4 LVDS crosspoint switch optimized for high-speed signal routing over lossy FR-4 backplanes and balanced cables. It features fully differential non-blocking architecture, SMBus- and pin-configurable transmit pre-emphasis (4 levels) and receive equalization (4 levels), and eliminates on-chip 100 Ω input termination to enable custom multidrop topologies in SD/HD/3G HD-SDI routers and InfiniBand interconnects.
For engineers reviewing the DS25CP114TSQX/NOPB datasheet, DS25CP114TSQX/NOPB pinout, DS25CP114TSQX/NOPB application, or DS25CP114TSQX/NOPB equivalent, key selection criteria include its external input termination requirement, 40-pin WQFN package with flow-through layout, SMBus programmability for dynamic EQ/PE tuning, and deterministic jitter performance below 27 ps at 3.125 Gbps with EQ=High.
Technical Context
The DS25CP114TSQX/NOPB implements a fully differential, non-blocking 4×4 LVDS switching matrix with independent per-output routing control via SMBus or hardware pins. Its dual-mode operation-Pin Mode (EN_smb = 0) for static configuration and SMBus Mode (EN_smb = 1) for dynamic reconfiguration-supports both fixed infrastructure and adaptive signal integrity management.
Unlike the DS25CP104A, the DS25CP114TSQX/NOPB omits internal 100 Ω differential input terminations, requiring external termination but enabling flexible multidrop and distribution topologies. It integrates LOS detection, 8 kV HBM ESD protection on LVDS I/O, and supports CML/LVPECL input compatibility via wide common-mode range (0.05 V to VCC − 0.05 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 3.125 Gbps - supports 3G HD-SDI, OC-48, and InfiniBand signaling without retiming |
| Input Termination | None - requires external 100 Ω termination; enables custom multidrop and fanout configurations |
| Pre-emphasis Levels | 4 levels (Off/Low/Medium/High) - configurable via SMBus to compensate for up to 30-inch FR-4 channel loss |
| Equalization Levels | 4 levels (Off/Low/Medium/High) - dynamically corrects frequency-dependent loss in long cable/backplane runs |
| Deterministic Jitter | ≤27 ps peak-to-peak at 3.125 Gbps with EQ=High - meets stringent eye-opening requirements for serial video |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails and low-noise LDOs |
| Operating Temp | −40°C to +85°C - qualified for industrial and broadcast equipment environments |
Pinout & Package
DS25CP114TSQX/NOPB uses a 40-pin WQFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad (DAP) requiring GND connection for optimal thermal and electrical performance. Pinout follows flow-through layout to minimize trace crossovers and maintain signal integrity on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+ / IN0− to IN3+ / IN3− | LVDS differential inputs | No internal 100 Ω termination - external termination required per design topology |
| OUT0+ / OUT0− to OUT3+ / OUT3− | LVDS differential outputs | Internally terminated to 100 Ω - reduces return loss and simplifies board layout |
| EQ0–EQ3 | LVCMOS equalization select | Set per-input EQ level (Off/Low/Medium/High) in Pin Mode; overridden by SMBus in SMBus Mode |
| PE0–PE3 | LVCMOS pre-emphasis select | Set per-output PE level (Off/Low/Medium/High) in Pin Mode; overridden by SMBus in SMBus Mode |
| S00/SCL, S01/SDA, S10–S21/ADDR0–ADDR3, S30/S31 | Configurable I/O | Function multiplexed: routing select pins in Pin Mode; SMBus clock/data/address in SMBus Mode |
| PWDN | LVCMOS power-down control | Hardware power gating; functional in both modes - complements SoftPWDN register bit |
| EN_smb | LVCMOS SMBus enable | Pull-down internal; logic high activates SMBus interface and disables pin-based routing |
| VDD (pins 3, 8, 15, 25, 30) | Power supply | Five dedicated 3.3 V supply pins reduce IR drop and improve PSRR across high-speed channels |
| GND (pins 16, DAP) | Ground reference | DAP must be soldered to solid GND plane - critical for jitter performance and thermal dissipation |
Key Features
| Feature | Design Value |
|---|---|
| Eliminated input termination | Enables custom multidrop topologies and point-to-multipoint distribution without signal reflection penalties |
| 4-level SMBus EQ/PE control | Allows real-time adaptation to channel degradation during system operation or field upgrades |
| LOS detection circuitry | Provides open-input fault reporting via SMBus register read - essential for broadcast router diagnostics |
| 8 kV HBM ESD protection | Protects LVDS I/O against handling damage and system-level ESD events without external TVS diodes |
| Flow-through WQFN-40 layout | Minimizes layer transitions and stub lengths - preserves signal integrity at 3.125 Gbps on 4-layer boards |
Applications
| SD/HD/3G HD-SDI Routers | OC-48 / STM-16 Optical Line Cards |
|---|---|
Use Scenario: High-density video routing in broadcast production switchers with >16 inputs/outputs and hot-swap capability. IC Role / Device Role / Timing Role: Loss-compensated 4×4 LVDS crosspoint managing baseband serial digital video paths between input cards, processing modules, and output drivers. Use Value: Maintains >12 dB eye opening after 20-inch FR-4 traces using EQ=High + PE=Medium, eliminating need for discrete redrivers. | Use Scenario: Signal aggregation and switching in telecom line interface units supporting SONET OC-48 data rates. IC Role / Device Role / Timing Role: High-fidelity 3.125 Gbps LVDS path selector between framer ICs, FEC engines, and optical transceivers. Use Value: Sub-27 ps deterministic jitter ensures compliance with GR-253-CORE BER <1e−12 at 3.125 Gbps without external clock cleanup. |
| InfiniBand Switch Fabric | FireWire 800 Backplane Interconnect |
Use Scenario: Low-latency, non-blocking interconnect between host channel adapters and target devices in enterprise storage networks. IC Role / Device Role / Timing Role: Reconfigurable 4×4 LVDS switch enabling dynamic topology changes and link training optimization. Use Value: SMBus-controlled EQ/PE allows per-link tuning during link-up negotiation - improves first-pass success rate by >40%. | Use Scenario: Daisy-chained FireWire 800 (SBP-2) peripherals sharing a single host controller in pro-audio/video workstations. IC Role / Device Role / Timing Role: Bidirectional LVDS repeater/crosspoint enabling signal regeneration and port expansion on legacy FireWire backplanes. Use Value: External input termination support allows impedance-matched multidrop topologies - extends max cable length from 4.5 m to 7.2 m. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4×4 LVDS crosspoint switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS25CP104ATSQX/NOPB | Includes internal 100 Ω input termination; identical EQ/PE capability and pinout | Better suited for point-to-point backplane routing where fixed termination simplifies layout | Select DS25CP104ATSQX/NOPB when minimizing external components is prioritized over multidrop flexibility |
| MAX9154ESE+ | 3.2 Gbps max rate; no SMBus interface; only pin-selectable PE/EQ (2 levels each); SO-28 package | Limited to static, low-channel-count routing in cost-sensitive industrial controllers | Select MAX9154ESE+ only for legacy designs requiring SOIC footprint and no firmware dependency |
Compared with DS25CP104ATSQX/NOPB, DS25CP114TSQX/NOPB trades integrated input termination for multidrop design freedom; compared with MAX9154ESE+, it adds SMBus configurability, 4-level signal conditioning, and WQFN thermal performance - making it the only choice for adaptive broadcast and telecom infrastructure.
Availability
DS25CP114TSQX/NOPB is available at Aetrix Electronics and suitable for SD/HD/3G HD-SDI routers, OC-48 line cards, and InfiniBand fabric switches requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for DS25CP114TSQX/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 for industrial, automotive, and communications markets.
The DS25CP114TSQX/NOPB belongs to TI's high-speed interface portfolio, designed specifically for loss-compensated signal routing in broadcast video, telecom transport, and high-performance computing interconnects.
FAQ
What is the key functional difference between DS25CP114TSQX/NOPB and DS25CP104ATSQX/NOPB?
The DS25CP114TSQX/NOPB omits internal 100 Ω differential input termination, requiring external termination but enabling custom multidrop and distribution topologies. In contrast, the DS25CP104ATSQX/NOPB integrates 100 Ω input termination on all four differential inputs - simplifying point-to-point routing but limiting flexibility in fanout or bus-style architectures. Both share identical SMBus programmability, EQ/PE levels, and WQFN-40 packaging.
Does DS25CP114TSQX/NOPB support CML or LVPECL inputs?
Yes, DS25CP114TSQX/NOPB supports CML and LVPECL inputs due to its wide input common-mode voltage range of 0.05 V to VCC − 0.05 V (typically 0.05 V to 3.25 V at VCC = 3.3 V). This allows direct interfacing with CML drivers (e.g., from SerDes PHYs) and LVPECL sources without level-shifting circuitry, provided differential swing remains within the specified 0–1.0 V VID range.
How is loss-of-signal (LOS) monitoring implemented in DS25CP114TSQX/NOPB?
DS25CP114TSQX/NOPB integrates dedicated LOS detection circuitry that monitors each LVDS input pair for open-circuit or disconnected-cable conditions. In SMBus Mode, LOS status is readable via dedicated registers; in Pin Mode, LOS feedback is not externally accessible. The function operates independently of EQ/PE settings and triggers reliably for input differential voltages below 10 mV, supporting automated fault reporting in broadcast router control software.
What is the thermal pad (DAP) connection requirement for DS25CP114TSQX/NOPB?
The exposed die attach pad (DAP) on DS25CP114TSQX/NOPB must be soldered to a solid GND plane on the PCB. This connection is mandatory-not optional-for achieving specified thermal resistance (θJC = 3.8°C/W) and maintaining jitter performance below 27 ps. Failure to connect the DAP results in junction temperature rise exceeding limits and deterministic jitter degradation beyond datasheet guarantees.
Can DS25CP114TSQX/NOPB operate in both pin-configuration and SMBus modes simultaneously?
No, DS25CP114TSQX/NOPB operates exclusively in one mode at a time, selected by the EN_smb pin state: logic low (EN_smb = 0) enables Pin Mode with hardware-selectable routing and EQ/PE; logic high (EN_smb = 1) enables SMBus Mode, disabling pin-based configuration and activating full register-based control. The modes are mutually exclusive - mixing control sources is not supported and may cause undefined behavior.
DS25CP114TSQX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Crosspoint Switch
- Circuit:
- 1 x 4:4
- 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:
- 40-WQFN (6x6)
DS25CP114TSQX/NOPB FAQ
1.How can I place an order for DS25CP114TSQX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS25CP114TSQX/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 DS25CP114TSQX/NOPB reliable?
The price and inventory of DS25CP114TSQX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS25CP114TSQX/NOPB is usually 5 days.
3.What payment methods are accepted for DS25CP114TSQX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS25CP114TSQX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS25CP114TSQX/NOPB?
DS25CP114TSQX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS25CP114TSQX/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 DS25CP114TSQX/NOPB?
For technical support, including DS25CP114TSQX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS25CP114TSQX/NOPB requirements.
6.How does Aetrix verify that DS25CP114TSQX/NOPB is sourced from the original manufacturer or authorized distributors?
All DS25CP114TSQX/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 DS25CP114TSQX/NOPB meets industry standards.
7.What is the process for return or replacement of DS25CP114TSQX/NOPB?
All DS25CP114TSQX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS25CP114TSQX/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 DS25CP114TSQX/NOPB part is unused and in its original packaging.
Return procedure for DS25CP114TSQX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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