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Texas Instruments DS32EL0124SQ/NOPB
- Part No.:
- DS32EL0124SQ/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Serializers, Deserializers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
DS32EL0124SQ/NOPB.pdf
- Description:
- IC DESERIAL W/DDR LVDS 48WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,432
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Product details
Overview
DS32EL0124SQ/NOPB from Texas Instruments is a 125–312.5 MHz DDR LVDS deserializer IC for FPGA-link applications, converting 1.25–3.125 Gbps CML serial input to 5-channel LVDS parallel output without external reference clock. It features programmable receive equalization, remote sense for automatic link negotiation, and operates across –40°C to +85°C.
For engineers reviewing the DS32EL0124SQ/NOPB datasheet, DS32EL0124SQ/NOPB pinout, DS32EL0124SQ/NOPB application, or DS32EL0124SQ/NOPB equivalent, key selection criteria include CML input jitter tolerance (0.5 UI at 1.25 Gbps), LVDS output skew (20 ps), DC-balance decoding support, SMBus configurability, and WQFN-48 package with exposed thermal pad.
Technical Context
The DS32EL0124SQ/NOPB integrates a clock and data recovery (CDR) module with on-chip LC VCOs and an external loop filter (LF_CP/LF_REF pins). Its CDR recovers timing from 1.25–3.125 Gbps CML serial streams and drives five LVDS outputs synchronized to a recovered RxCLKOUT with 45–55% duty cycle.
It supports dual-mode operation: standard deserialization with DC-balance decoding (enabling 2.5 Gbps payload to 4 LVDS lanes) and optional de-scrambling via SMBus control. Remote sense (RS pin) enables autonomous link status negotiation with companion DS32EL0421/DS32ELX0421 serializers without dedicated feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Input Rate | 1.25 to 3.125 Gbps - Supports high-speed backplane/cable links with FR-4 trace budgets up to 30 inches. |
| Parallel Output Format | 5-bit DDR LVDS - Delivers 2.5 Gbps payload (with DC-balance) or full 3.125 Gbps to 5 lanes; reduces FPGA I/O count vs. single-ended interfaces. |
| Input Jitter Tolerance | 0.5 UI minimum at 1.25 Gbps - Ensures robust lock under real-world channel-induced jitter, critical for industrial video transport. |
| LVDS Output Skew | 20 ps max between complementary pairs - Enables tight timing alignment for synchronous sampling in FPGA logic. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial and medical imaging systems requiring extended thermal stability. |
| ESD Protection | > 8 kV HBM - Provides robust handling margin during board assembly and field service in commercial display systems. |
| Supply Voltages | VDD33 = 3.135–3.465 V; VDD25 = 2.375–2.625 V - Dual-rail operation enables low-noise analog PLL core and digital I/O separation. |
Pinout & Package
DS32EL0124SQ/NOPB uses a 48-pin WQFN package (RHS0048A) with 7 mm × 7 mm body and exposed thermal pad (DAP = GND, connected via 9 vias). Pinout is validated per TI SNLS284K Rev. April 2013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RxIN0+ / RxIN0− | CML differential serial input | Primary high-speed data input pair; internally terminated to 100 Ω; accepts 230–2200 mV differential swing. |
| RxCLKOUT+ / RxCLKOUT− | LVDS recovered clock output | DDR clock derived from CDR; 45–55% duty cycle; used as system timing reference for FPGA capture logic. |
| RxOUT[0:4]+ / RxOUT[0:4]− | LVDS parallel data outputs | 5-bit DDR data bus; each pair delivers synchronized deserialized data; supports 125–312.5 MHz DDR clock rate. |
| RESET | LVCMOS active-low reset | Asynchronous hardware reset; drives device to default register state; required for deterministic startup after power-up. |
| LOCK | LVCMOS lock status indicator | Active-low open-drain output signaling CDR lock; used by FPGA to gate data valid assertion and enable downstream processing. |
| SMB_CS / SCK / SDA | SMBus interface | Configurable control interface; enables dynamic adjustment of equalization, PLL bandwidth, descrambler, and DC-balance mode. |
| VDD33 / VDD25 / VDDPLL | Power supply inputs | Separate 3.3 V (I/O/core), 2.5 V (digital logic), and 3.3 V PLL rails; require local 0.1 µF + 4.7 µF bypassing per rail. |
| LF_CP / LF_REF | Analog loop filter nodes | Connect external 30 nF capacitor between pins to stabilize CDR loop dynamics; critical for jitter transfer performance. |
Key Features
| Feature | Design Value |
|---|---|
| No external reference clock required | On-chip LC VCO and CDR eliminate need for separate clock source, reducing BOM cost and PCB layout complexity. |
| Programmable receive equalization | Compensates for frequency-dependent loss in long FR-4 traces or cables, extending usable link distance without redesign. |
| Remote sense (RS) capability | Enables automatic link detection and negotiation with DS32EL0421/DS32ELX0421 serializers-no extra control lines needed. |
| Selectable DC-balance decoder | Supports AC-coupled interconnects by detecting 8b/10b encoded idle/error states on RxOUT4, enabling robust error monitoring. |
| Configurable via SMBus | Full register access allows runtime tuning of PLL loop bandwidth, de-scrambler, output delay, and power-down modes. |
Applications
| Industrial Imaging Systems | Medical Endoscopy Video Links |
|---|---|
Use Scenario: High-resolution CMOS sensor data transmission over rigid-flex PCBs in factory automation cameras. IC Role / Device Role / Timing Role: Deserializes 3.125 Gbps CML stream from image sensor ASIC into 5-bit DDR LVDS for FPGA-based frame buffering and preprocessing. Use Value: Eliminates need for external clock distribution; 20 ps LVDS skew ensures pixel-aligned capture across all 5 lanes. |
Use Scenario: Real-time HD video streaming from endoscopic camera head to processing unit through sterilizable cable harnesses. IC Role / Device Role / Timing Role: Receives serialized video over balanced twisted-pair; provides jitter-cleaned DDR clock and data to medical-grade FPGA. Use Value: >8 kV HBM ESD rating withstands repeated handling; remote sense enables plug-and-play cable detection without host intervention. |
| Commercial LED Video Walls | Test Equipment High-Speed Data Capture |
Use Scenario: Pixel data distribution from controller to individual LED panel modules across multi-meter ribbon cables. IC Role / Device Role / Timing Role: Converts high-speed serial video feed into parallel LVDS for local panel timing controllers and gamma correction ICs. Use Value: Programmable equalization compensates for cable length variations; DC-balance decoding prevents baseline wander in AC-coupled links. |
Use Scenario: Capturing high-speed digital waveforms from DUTs using modular digitizer cards with FPGA front ends. IC Role / Device Role / Timing Role: Deserializes test pattern generator output into synchronous parallel bus for real-time analysis and trigger generation. Use Value: 0.5 UI input jitter tolerance ensures reliable lock under noisy lab conditions; SMBus configurability supports multiple test profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FPGA-link deserializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS32ELX0124SQ/NOPB | Includes redundant CML input (RxIN1±), retimed CML output (TxOUT±), and RX_MUX_SEL control; higher power consumption. | Required when dual-input failover or loop-through retransmission is needed in mission-critical video transport. | Select DS32ELX0124SQ/NOPB only if redundant input path or retimed output is explicitly required; otherwise DS32EL0124SQ/NOPB offers lower cost and power. |
| MAX9278GTJ+T | Offers 1.5 Gbps max rate, integrated spread-spectrum clocking, and automotive AEC-Q100 qualification; no remote sense or DC-balance decode. | Better suited for automotive ADAS camera links where EMI reduction and qualification outweigh flexibility needs. | Choose MAX9278GTJ+T for automotive environments; DS32EL0124SQ/NOPB remains preferred for industrial/commercial FPGA-centric designs requiring configurability and wide data-rate range. |
Compared with DS32ELX0124SQ/NOPB, DS32EL0124SQ/NOPB reduces component count and power by omitting redundant I/O while retaining full deserialization functionality; versus MAX9278GTJ+T, it provides broader data-rate coverage (1.25–3.125 Gbps), remote sense, and DC-balance decoding essential for non-automotive high-reliability video systems.
Availability
DS32EL0124SQ/NOPB is available at Aetrix Electronics and suitable for industrial imaging, medical endoscopy, and commercial LED video wall applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DS32EL0124SQ/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 and embedded processing solutions, with over 90 years of innovation in signal chain and power management technologies.
The DS32EL0124SQ/NOPB belongs to TI's FPGA-Link serializer/deserializer product line, designed specifically for high-speed, low-latency, AC-coupled video and imaging data transport between FPGAs, sensors, and displays.
FAQ
What is the maximum supported serial data rate for DS32EL0124SQ/NOPB?
The DS32EL0124SQ/NOPB supports serial input rates from 1.25 Gbps up to 3.125 Gbps. At 3.125 Gbps, it deserializes into a 5-bit DDR LVDS parallel interface operating at 312.5 MHz. This rate is confirmed in the SNLS284K datasheet Absolute Maximum Ratings and Key Specifications sections, and applies across the full –40°C to +85°C temperature range.
Does DS32EL0124SQ/NOPB require an external reference clock?
No, DS32EL0124SQ/NOPB does not require an external reference clock. It integrates on-chip LC VCOs and a clock and data recovery (CDR) module that extracts timing directly from the incoming CML serial data stream. This eliminates the need for a separate clock source, simplifying system design and reducing BOM cost-confirmed in the Functional Description and Key Specifications sections of the TI datasheet.
How does the remote sense (RS) feature work in DS32EL0124SQ/NOPB?
The remote sense (RS) feature in DS32EL0124SQ/NOPB enables automatic link detection and negotiation with compatible TI serializers like DS32EL0421. When RS is asserted, the DS32EL0124SQ/NOPB cycles through IDLE → LINK DETECT → CLOCK ACQUISITION → LINK ACQUISITION → NORMAL states to establish synchronization without dedicated feedback lines-detailed in the Remote Sense section and Figure 9 of SNLS284K.
Can DS32EL0124SQ/NOPB decode DC-balanced (8b/10b) data streams?
Yes, DS32EL0124SQ/NOPB includes a selectable DC-balance decoder. When enabled via the DC_B pin or SMBus register, it interprets RxOUT4 as a data-valid indicator: low = valid decoded data on RxOUT0–3; high + low outputs = idle (e.g., K28.5); high + high outputs = invalid code. This supports AC-coupled interconnects and is documented in the DC-Balance Decoder section of SNLS284K.
What package type and thermal requirements apply to DS32EL0124SQ/NOPB?
DS32EL0124SQ/NOPB uses a 48-pin WQFN package (RHS0048A, 7 mm × 7 mm) with an exposed thermal pad (DAP) that must be connected to ground using nine vias. Thermal resistance θJA is 25.0°C/W. Proper thermal management requires soldering the DAP to a solid ground plane and using recommended 0.1 µF + 4.7 µF bypass capacitors on all supply pins-per Package Mechanical and Power Supplies sections of SNLS284K.
DS32EL0124SQ/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Deserializer
- Data Rate:
- 3.125Gbps
- Input Type:
- CML
- Output Type:
- LVDS
- Number of Inputs:
- 1
- Number of Outputs:
- 5
- Voltage - Supply:
- 2.5V, 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-WQFN (7x7)
DS32EL0124SQ/NOPB FAQ
1.How can I place an order for DS32EL0124SQ/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for DS32EL0124SQ/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 DS32EL0124SQ/NOPB reliable?
The price and inventory of DS32EL0124SQ/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS32EL0124SQ/NOPB is usually 5 days.
3.What payment methods are accepted for DS32EL0124SQ/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS32EL0124SQ/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS32EL0124SQ/NOPB?
DS32EL0124SQ/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS32EL0124SQ/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 DS32EL0124SQ/NOPB?
For technical support, including DS32EL0124SQ/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS32EL0124SQ/NOPB requirements.
6.How does Aetrix verify that DS32EL0124SQ/NOPB is sourced from the original manufacturer or authorized distributors?
All DS32EL0124SQ/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 DS32EL0124SQ/NOPB meets industry standards.
7.What is the process for return or replacement of DS32EL0124SQ/NOPB?
All DS32EL0124SQ/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with DS32EL0124SQ/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 DS32EL0124SQ/NOPB part is unused and in its original packaging.
Return procedure for DS32EL0124SQ/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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