DS15BR400TSQX/NOPB Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
DS15BR400TSQX/NOPB is a 4-channel LVDS buffer and repeater with pre-emphasis in a 32-pin QFN package by Texas Instruments. Key specs: differential LVDS I/O, 10µA max input current, supports data rates exceeding 1.5Gbps per channel. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- OBSOLETE
- Datasheet
- DS15BR400TSQX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of DS15BR400TSQX/NOPB?
- 4-channel LVDS repeater with pre-emphasis compensates for lossy PCB traces at data rates above 1 Gbps
- Differential LVDS interface with 10 µA max input current minimises signal loading on transmit drivers
- 32-pin QFN package (S-XQCC-N32) enables compact high-speed serial bus buffering on dense server and networking boards
What is DS15BR400TSQX/NOPB used for?
DS15BR400TSQX/NOPB is used in server backplanes, network switches, and storage interconnects where 4-channel LVDS signals must be retimed and re-driven across long PCB traces or backplane connectors without signal integrity degradation. Its built-in pre-emphasis boosts high-frequency components to overcome frequency-dependent insertion loss in FR4 traces at data rates above 1Gbps. The device also suits high-speed video distribution, test and measurement equipment, and FPGA-to-FPGA high-speed link repeating applications.
What are the specifications of DS15BR400TSQX/NOPB?
| Pbfree Code | No |
| YTEOL | 0 |
| Differential Output | YES |
| Driver Number of Bits | 4 |
| High Level Input Current-Max | 0.00001A |
| Input Characteristics | DIFFERENTIAL |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | GENERAL PURPOSE |
| JESD-30 Code | S-XQCC-N32 |
| JESD-609 Code | e3 |
| Number of Functions | 4 |
| Out Swing-Min | 2V |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Receive Delay-Max | 2ns |
| Receiver Number of Bits | 4 |
| Supply Current-Max | 215mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 3.6V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Transmit Delay-Max | 2ns |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the DS15BR400TSQX/NOPB datasheet?
DS15BR400TSQX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for DS15BR400TSQX/NOPB?
Compatible alternatives and drop-in replacements for DS15BR400TSQX/NOPB:
Frequently Asked Questions
What maximum data rate can DS15BR400TSQX/NOPB support on each LVDS channel?
DS15BR400TSQX/NOPB supports per-channel data rates exceeding 1.5 Gbps on each of its 4 LVDS channels, making it suitable for high-speed protocols such as XAUI sub-lanes, RapidIO, and custom LVDS serial links. The integrated pre-emphasis extends reach by boosting signal edges to compensate for FR4 PCB trace loss at these frequencies. At lower data rates, the pre-emphasis can be reduced or disabled to minimise overshoot on short trace segments.
How does DS15BR400TSQX/NOPB's pre-emphasis feature improve signal integrity on long backplane traces?
DS15BR400TSQX/NOPB applies programmable pre-emphasis to its LVDS outputs, boosting the amplitude of high-frequency transitions to compensate for the -3dB bandwidth limit of lossy FR4 traces at 1 Gbps and above. Without pre-emphasis, a 20-inch FR4 backplane trace may attenuate the 750 MHz fundamental of a 1.5Gbps signal by 6dB or more, causing eye closure at the receiver. With pre-emphasis engaged, the eye opening at the far end of the trace is restored to a level that meets LVDS receiver sensitivity margins.
Is DS15BR400TSQX/NOPB recommended for new designs given its YTEOL and RoHS status?
DS15BR400TSQX/NOPB carries a YTEOL of 0 and a JESD-609 code of e3, indicating it is not RoHS compliant and is at or near end-of-life. New designs targeting RoHS or REACH-restricted markets should select a current replacement, such as TI's DS25BR400 or similar active LVDS repeater products, which offer lead-free packaging and updated signal conditioning features. Procurement teams should confirm remaining inventory availability and lifetime buy quantities before committing to this part in production.
What fanout and channel count does DS15BR400TSQX/NOPB provide for bus distribution?
DS15BR400TSQX/NOPB provides 4 independent LVDS channels, each capable of buffering and re-driving one differential pair from a transmitter to one or more downstream receivers. Multiple DS15BR400TSQX/NOPB devices can be paralleled or cascaded to distribute signals to 8 or more destinations in star-topology backplane architectures. The differential output structure maintains LVDS common-mode levels within specification, allowing direct coupling to any standard LVDS receiver without additional termination networks beyond a 100-ohm differential termination resistor at the load.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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