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Texas Instruments DS25CP114TSQE/NOPB
- Part No.:
- DS25CP114TSQE/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
DS25CP114TSQE/NOPB.pdf
- Description:
- IC CROSSPOINT SW 1 X 4:4 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,404
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Product details
Overview
DS25CP114TSQE/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, pin- and SMBus-configurable transmit pre-emphasis (4 levels) and receive equalization (4 levels), and eliminates on-chip 100 Ω input termination to support custom multidrop topologies in SD/HD/3G HD-SDI routers and InfiniBand interconnects.
For engineers reviewing the DS25CP114TSQE/NOPB datasheet, DS25CP114TSQE/NOPB pinout, DS25CP114TSQE/NOPB application, or DS25CP114TSQE/NOPB equivalent, key selection criteria include its 3.125 Gbps bandwidth, absence of internal input termination, SMBus programmability for PE/EQ level selection, and support for loss-of-signal (LOS) monitoring in system management contexts.
Technical Context
The DS25CP114TSQE/NOPB implements a fully differential, non-blocking 4×4 LVDS switching matrix with independent path routing-any input can be connected to any output(s). Its architecture supports both pin-strapped configuration (EN_smb = 0) and full SMBus control (EN_smb = 1), enabling dynamic reconfiguration without hardware changes.
Unlike the DS25CP104A, the DS25CP114TSQE/NOPB omits internal 100 Ω differential input termination, requiring external termination but enabling flexible multidrop signaling topologies. It delivers deterministic jitter ≤27 ps (peak-to-peak) at 3.125 Gbps with EQ = Off / PE = Off, and supports four discrete pre-emphasis and equalization levels via SMBus registers or dedicated LVCMOS pins.
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 | No internal 100 Ω termination - requires external termination; enables custom multidrop topologies |
| Pre-emphasis Levels | 4 levels (Off/Low/Medium/High) - configurable via SMBus or LVCMOS pins to compensate channel loss |
| Equalization Levels | 4 levels (Off/Low/Medium/High) - adaptive receive equalization reduces ISI-induced jitter on lossy traces |
| Differential Output Voltage | 250–450 mV into 100 Ω - meets LVDS standard compliance and ensures robust noise margin |
| Channel-to-Channel Skew | ≤125 ps - maintains timing alignment across all 4 outputs in broadcast or fanout configurations |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails and industrial power domains |
Pinout & Package
DS25CP114TSQE/NOPB uses a 40-pin WQFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad (DAP) requiring connection to GND for optimal thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+ / IN0− to IN3+ / IN3− | LVDS Input Pairs | Differential high-speed inputs; no internal termination - external 100 Ω required per pair |
| OUT0+ / OUT0− to OUT3+ / OUT3− | LVDS Output Pairs | Differential outputs with integrated 100 Ω termination; compliant with LVDS drive strength |
| EQ0–EQ3 | LVCMOS Equalization Control | Selects receive EQ level (Off/Low/Medium/High); functional regardless of EN_smb state |
| PE0–PE3 | LVCMOS Pre-emphasis Control | Selects transmit PE level (Off/Low/Medium/High); functional regardless of EN_smb state |
| EN_smb | SMBus Enable Input | Pull-down enabled; logic high activates SMBus mode (SCL/SDA active, ADDR pins functional) |
| PWDN | Power-Down Control | Active-low; places device in low-power state while preserving SMBus accessibility if EN_smb = 1 |
| VDD / GND / DAP | Power & Ground | Five VDD pins distributed for low-noise supply; DAP must be soldered to GND plane |
Key Features
| Feature | Design Value |
|---|---|
| Fully differential non-blocking architecture | Enables any-to-any input-output routing without signal degradation or contention |
| 4-level SMBus-programmable pre-emphasis | Compensates up to 30-inch FR-4 trace loss at 3.125 Gbps without external components |
| 4-level SMBus-programmable equalization | Reduces deterministic jitter by up to 50% on channels with >9 dB insertion loss at 1.5 GHz |
| Loss-of-signal (LOS) monitoring | Flags open-cable or disconnected-input faults via SMBus register read, enabling system-level diagnostics |
| 8 kV HBM ESD protection on LVDS I/O | Protects against electrostatic discharge during board handling and field operation without external TVS |
Applications
| SD/HD/3G HD-SDI Routers | OC-48 / STM-16 Optical Transport |
|---|---|
Use Scenario: High-density video signal switching in broadcast infrastructure with mixed SD/HD/3G formats and long cable runs. IC Role / Device Role / Timing Role: LVDS crosspoint switch providing lossless, low-jitter signal distribution between input cards, processing modules, and output cards. Use Value: Eliminates need for external equalizers or redrivers; 3.125 Gbps bandwidth and adaptive EQ ensure eye opening >60% at receiver after 20-inch FR-4 traces. | Use Scenario: Backplane routing in telecom line cards where multiple OC-48 data streams converge onto shared switching fabric. IC Role / Device Role / Timing Role: Signal integrity-preserving 4×4 interconnect element supporting SONET/SDH framing with sub-100 ps skew tolerance. Use Value: Pin- and SMBus-configurable PE/EQ allows per-channel optimization for varying trace lengths and connector losses across the card. |
| InfiniBand Switch Fabric | FireWire 800 Interconnect Systems |
Use Scenario: Low-latency, high-bandwidth interconnect between host channel adapters and target devices in HPC clusters. IC Role / Device Role / Timing Role: Reconfigurable crosspoint enabling dynamic topology changes and redundancy paths in switched fabric environments. Use Value: Non-blocking architecture and <125 ps channel skew maintain InfiniBand DDR/QDR timing budgets; SMBus control enables runtime reconfiguration. | Use Scenario: High-fidelity digital audio/video transport in professional A/V equipment using FireWire 800 (400 Mbps physical layer). IC Role / Device Role / Timing Role: Signal routing hub connecting multiple FireWire PHYs to shared controllers or storage interfaces. Use Value: LVDS I/O compatibility and wide common-mode range (0.05 V to VCC − 0.05 V) simplify interface to CML/LVPECL PHYs without level-shifting. |
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 |
|---|---|---|---|
| DS25CP104ATSQE/NOPB | Includes internal 100 Ω input termination; identical PE/EQ capability and pinout | Better suited for point-to-point routing where fixed termination simplifies layout | Select DS25CP104ATSQE/NOPB when minimizing external component count is prioritized over multidrop flexibility |
| MAX9154ESE+ | 3.2 Gbps max rate; no SMBus interface; only pin-strapped PE/EQ (2 levels each) | Limited configurability; lacks LOS monitoring and fine-grained equalization | Select MAX9154ESE+ only for cost-sensitive, static-routing applications without diagnostic requirements |
Compared with DS25CP104ATSQE/NOPB, DS25CP114TSQE/NOPB trades built-in input termination for multidrop design freedom; compared with MAX9154ESE+, it adds SMBus programmability, 4-level signal conditioning, and system-level fault detection-critical for adaptive, high-availability interconnects.
Availability
DS25CP114TSQE/NOPB is available at Aetrix Electronics and suitable for SD/HD/3G HD-SDI routers, OC-48 optical transport systems, and InfiniBand switch fabrics requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for DS25CP114TSQE/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 specializing in analog, embedded processing, and high-speed interface solutions with decades of expertise in signal integrity and timing ICs.
The DS25CP114TSQE/NOPB belongs to TI's high-speed LVDS crosspoint switch product line, designed specifically for lossy backplane and cable-based routing in broadcast video, telecom, and high-performance computing applications.
FAQ
What is the key functional difference between DS25CP114TSQE/NOPB and DS25CP104ATSQE/NOPB?
The DS25CP114TSQE/NOPB omits internal 100 Ω differential input termination, requiring external termination but enabling custom multidrop topologies. In contrast, DS25CP104ATSQE/NOPB integrates 100 Ω input termination on all four LVDS input pairs-simplifying point-to-point designs but limiting flexibility in branched signal distribution. Both share identical SMBus programmability, pre-emphasis/equalization levels, and pinout.
Does DS25CP114TSQE/NOPB support SMBus communication out of the box?
Yes, DS25CP114TSQE/NOPB supports SMBus communication when EN_smb is pulled high. It uses a 7-bit slave address with three fixed MSBs (101) and four user-configurable LSBs (ADDR0–ADDR3), allowing up to 16 devices on one bus. SMBus enables full read/write access to PE/EQ level registers, control bits (e.g., SoftPWDN), and LOS status flags-no additional firmware or configuration is needed beyond proper pull-up/pull-down biasing.
How does the absence of internal input termination affect PCB layout for DS25CP114TSQE/NOPB?
The absence of internal input termination in DS25CP114TSQE/NOPB requires placing 100 Ω differential termination resistors externally at each LVDS input pair-typically close to the device pins. This increases component count but grants full control over termination placement (e.g., at far-end for multidrop buses) and value (e.g., 90 Ω for impedance-matched FR-4). Layout must minimize stub length and maintain tight differential pair routing to preserve signal integrity at 3.125 Gbps.
Can DS25CP114TSQE/NOPB operate in both pin-strapped and SMBus modes simultaneously?
No, DS25CP114TSQE/NOPB operates exclusively in one mode at a time, determined by the EN_smb pin state: logic low enables pin-strapped mode (Sxx pins act as input selectors, PE/EQ pins set Medium/Off or Low/Off), while logic high enables SMBus mode (Sxx pins repurposed as SCL/SDA/ADDR, full 4-level PE/EQ via registers). The two modes are mutually exclusive; mixing control sources is not supported and may cause undefined behavior.
What is the maximum allowable channel loss that DS25CP114TSQE/NOPB can compensate using its equalization feature?
Based on TI's characterization data using test channels with defined FR-4 stripline loss, DS25CP114TSQE/NOPB with EQ = High compensates up to ~9.7 dB insertion loss at 1.5625 GHz (e.g., 30-inch channel C). At 3.125 Gbps (1.5625 GHz fundamental), this corresponds to measurable eye recovery-total jitter reduction from 0.16 UIP-P (EQ Off) to 0.20 UIP-P (EQ High) under PRBS-23, confirming effective equalization for moderate-loss backplanes. Performance depends on actual channel response, not just length.
DS25CP114TSQE/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)
DS25CP114TSQE/NOPB FAQ
1.How can I place an order for DS25CP114TSQE/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS25CP114TSQE/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 DS25CP114TSQE/NOPB reliable?
The price and inventory of DS25CP114TSQE/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS25CP114TSQE/NOPB is usually 5 days.
3.What payment methods are accepted for DS25CP114TSQE/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS25CP114TSQE/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS25CP114TSQE/NOPB?
DS25CP114TSQE/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS25CP114TSQE/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 DS25CP114TSQE/NOPB?
For technical support, including DS25CP114TSQE/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS25CP114TSQE/NOPB requirements.
6.How does Aetrix verify that DS25CP114TSQE/NOPB is sourced from the original manufacturer or authorized distributors?
All DS25CP114TSQE/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 DS25CP114TSQE/NOPB meets industry standards.
7.What is the process for return or replacement of DS25CP114TSQE/NOPB?
All DS25CP114TSQE/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS25CP114TSQE/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 DS25CP114TSQE/NOPB part is unused and in its original packaging.
Return procedure for DS25CP114TSQE/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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