DS15BR400TVSX/NOPB - 4-Ch LVDS Buffer 2Gbps | TI
N.º de pieza: DS15BR400TVSX/NOPB ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
DS15BR400TVSX/NOPB Descripción general
An LVDS (Low-Voltage Differential Signaling) buffer/repeater belongs to the broader family of high-speed interface ICs, sitting within the signal-conditioning hierarchy between a differential line driver and the receiving ASIC or serializer. Its role is to regenerate degraded differential signals, restoring amplitude and sharpness so that data can traverse lossy media such as backplanes and cables without violating eye-mask requirements at the receiver.
Key differentiating features include the 2 Gbps per-channel data rate, pre-emphasis that overcomes ISI (inter-symbol interference) jitter introduced by lossy transmission media, and a flow-through pinout that minimizes internal device jitter while dramatically simplifying PCB routing. The differential inputs interface directly to standard LVDS and Bus LVDS signal levels, such as those generated by TI 10-, 16-, and 18-bit serializers, making the device a natural companion in SerDes-based video and data-conversion links.
Architecturally, the DS15BR400 uses high-speed differential input buffers followed by output drivers with programmable-style pre-emphasis compensation. Because the signal path is analog buffer-based rather than clock-and-data-recovery based, latency is deterministic and low (1.0 ns typical), which matters in phase-critical pixel-clock and sample-clock distribution. High-speed data paths with flow-through pin ordering keep intra-pair skew tight and reduce via stubs.
Typical applications include flat-panel display and medical-imaging backplanes carrying FPD-Link or OpenLDI-style LVDS streams, high-speed data acquisition and ADC-to-processor links, and industrial camera or video router systems where 2 Gbps serial streams cross connectors and cable assemblies.
When designing with this part, control the inter-pair skew budget and use controlled-impedance 100-ohm differential routing; pre-emphasis settings should be validated on your specific backplane attenuation, since over-emphasis can increase crosstalk at the far end.
This page synthesizes distributor pricing context, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas directas para DS15BR400TVSX/NOPB — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con DS15BR400TVSX/NOPB (mismo factor de forma y huella) — difiere en Input Interface, Package, Pinout Style, Pre-Emphasis, Supply Current.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DS15BR401TVSX/NOPB
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DS15BR401TVS/NOPB
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DS15BR400TVS/NOPB
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →DS15BR400TVSX/NOPB Especificaciones
| Función | 4-channel LVDS buffer/repeater with pre-emphasis |
| Velocidad de datos | Up to 2 Gbps per channel |
| Tensión de alimentación | 3.0 V to 3.6 V |
| Corriente de alimentación | 215 mA (typ) |
| Power Consumption | 578 mW (typ) |
| Propagation Delay | 1.0 ns (typ) |
| Capacitancia de entrada | 3 pF |
| Input Interface | LVDS / Bus LVDS compatible |
| Canales | 4 differential channels |
| Pre-Emphasis | Yes (compensates ISI jitter on lossy backplanes/cables) |
| Pinout Style | Flow-through |
| Temperatura de funcionamiento | -40C to +85C |
| Encapsulado | 48-TQFP (PFB), 7x7 mm |
| Tipo de montaje | Surface Mount |
| Packaging | Tape & Reel |
Guía de configuración de pines de DS15BR400TVSX/NOPB 48-tqfp (pfb), 7x7 mm
Configuración de pines para DS15BR400TVSX/NOPB (encapsulado 48-tqfp (pfb), 7x7 mm). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para DS15BR400TVSX/NOPB.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
DS15BR400TVSX/NOPB es adecuado para 6 aplicacións: FPD-Link Display Backplanes, Medical Imaging Data Links, Industrial Video Router and Switcher, High-Speed ADC-to-FPGA Links, Cable Interconnect Redriving, Test and Measurement Instrument Backplanes.
FPD-Link Display Backplanes
Flat-panel display backplanes carry serialized pixel data from a timing controller to source drivers over LVDS pairs routed through FR-4 and connectors. The DS15BR400TVSX/NOPB fits this role because its 2 Gbps per-channel rate covers 10-, 16-, and 18-bit FPD-Link/OpenLDI payload streams, and its LVDS/Bus LVDS compatible inputs connect directly to TI serializer outputs. Pre-emphasis compensates ISI jitter accumulated across the backplane so the receiving deserializer sees an open eye at full rate. The flow-through pinout routes input pairs on one edge and output pairs on the other, minimizing crosstalk and simplifying via strategy on dense display boards. Placed midway along long backplane runs with 100-ohm differential termination, the repeater restores signal amplitude with only 1.0 ns typical added latency, which is negligible for pixel-clock synchronization.
Recomendado
Medical Imaging Data Links
Medical imaging systems such as ultrasound and digital radiography move high-rate ADC or sensor data from front-end boards to processing units over backplanes or cable assemblies. The DS15BR400TVSX/NOPB suits these links because its analog buffer architecture adds only 1.0 ns typical deterministic latency with no clock-and-data-recovery phase noise contribution, preserving timing coherence between sample channels - important for beamforming and image reconstruction. The 2 Gbps per-channel rate accommodates multi-channel serialized data, and pre-emphasis maintains eye opening across lossy flex or backplane media. The -40C to +85C industrial operating range and 578 mW typical dissipation in the 7x7 mm 48-TQFP fit thermally constrained imaging head units. Four independent channels let one device regenerate an entire 32-bit LVDS payload with clock pair in a single footprint.
Recomendado
Industrial Video Router and Switcher
Broadcast and industrial video routers switch multi-Gbps LVDS streams between cards across a passive backplane. The DS15BR400TVSX/NOPB fits as a per-port redriver: its LVDS/Bus LVDS inputs accept serializer outputs directly, and pre-emphasis restores ISI-degraded edges after the lossy backplane hop, allowing 2 Gbps operation where unbuffered links would fail. The flow-through pinout allows straightforward card-edge routing with matched intra-pair lengths, and the 3.0 V to 3.6 V supply integrates into standard 3.3 V card power. Because each channel is independent, one 48-TQFP device services a full four-pair link including clock. Typical insertion adds 215 mA of load current and 1.0 ns of delay, which router timing budgets absorb easily while gaining significant signal-margin improvement at the crosspoint receiver.
Recomendado
High-Speed ADC-to-FPGA Links
Data acquisition systems frequently serialize converter outputs over LVDS into FPGAs across connectors or backplanes. The DS15BR400TVSX/NOPB regenerates these streams when path loss closes the eye at the FPGA receiver. Its 2 Gbps per-channel capability covers common 12- and 16-bit ADC serialization rates, and its Bus LVDS input compatibility interfaces directly with TI converter families. Because it is a buffer rather than a retimer, the bit-level sample-clock phase relationship is preserved with only 1.0 ns typical delay, simplifying static timing analysis in the FPGA. Pre-emphasis overcomes ISI from backplane transitions, and the flow-through pinout supports clean, length-matched routing from card connector to FPGA I/O bank. The 578 mW typical consumption keeps card power budgets predictable in multi-channel acquisition shelves.
Recomendado
Cable Interconnect Redriving
LVDS streams crossing external cable assemblies, such as camera-link-style tethered sensors or shelf-to-shelf interconnects, suffer attenuation and ISI that push receivers out of margin. The DS15BR400TVSX/NOPB serves as a remote redriver at the cable receive end: its pre-emphasis pre-distorts output edges to compensate the remaining board-level loss after the cable, while its LVDS-compatible inputs present a standard 100-ohm terminated load to the cable. At 2 Gbps per channel it supports high-resolution serial payloads, and its industrial -40C to +85C range suits harsh floor environments. The 48-TQFP flow-through package makes a simple two-connector daughter-card design possible with matched differential routing and only 215 mA typical supply current, restoring full eye margin at the destination deserializer.
Recomendado
Test and Measurement Instrument Backplanes
Modular test instruments distribute high-rate sample and trigger data between plug-in cards over a common backplane. The DS15BR400TVSX/NOPB provides transparent regeneration on these paths: 2 Gbps per-channel bandwidth supports wide converter payloads, the 1.0 ns typical delay keeps trigger-path skew small and predictable, and pre-emphasis compensates the repeatable attenuation of the backplane routing. The four independent channels allow one device to redrive a complete differential payload-plus-clock group, reducing component count versus per-pair solutions. Operating from a 3.0 V to 3.6 V rail at 215 mA typical, the part integrates into existing 3.3 V card supplies, and the -40C to +85C specification meets lab-to-field deployment ranges. The flow-through 48-TQFP pinout simplifies repeatable, low-skew card-edge layout across instrument families.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DS15BR400TVSX/NOPB — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | DS15BR401TVSX/NOPB | DS15BR401TVS/NOPB | DS15BR400TVS/NOPB |
|---|---|---|---|---|
| Package | 48-TQFP (PFB), 7x7 mm | 48-TQFP (PFB), 7x7 mm - same | 48-TQFP (PFB), 7x7 mm - same | 48-TQFP (PFB), 7x7 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Data Rate | Up to 2 Gbps | Up to 2 Gbps | Up to 2 Gbps | Up to 2 Gbps |
| Output Polarity | Non-inverting buffer | Inverting (verify per datasheet) | Inverting (verify per datasheet) | Non-inverting - identical |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Propagation Delay | 1.0 ns (typ) | 1.0 ns (typ) | 1.0 ns (typ) | 1.0 ns (typ) |
| Pre-Emphasis | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Diferenciadores clave
- Analog buffer architecture with deterministic 1.0 ns delay (frente a CDR-based retimers in the same function class)
- Pre-emphasis for lossy backplane/cable channels (frente a DS15BR400TVS/NOPB run without pre-emphasis benefit on long channels)
- Flow-through pinout in 48-TQFP (frente a DS15BR401TVSX/NOPB (same flow-through) vs non-flow-through repeater alternatives)
Notas de diseño
Route all LVDS pairs as 100-ohm controlled-impedance differential lines with matched intra-pair lengths. The DS15BR400 datasheet emphasizes that databook specifications must be met without exception over power supply, temperature, and input/output loading to guarantee reliable operation. Keep intra-pair skew below a few picoseconds by routing pairs symmetrically and avoid via stubs; the flow-through pinout exists specifically to support this. Inter-pair skew determines channel-to-channel timing error, so length-match pairs carrying related payload and clock signals.
Decouple each supply pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF per device. The 215 mA typical supply current includes simultaneous-switching output transients on four LVDS pairs, so use a solid ground plane under the TQFP-48 and minimize the loop area of the supply path. Locate the device close to the backplane or cable connector it serves to keep the lossy medium before the repeater and the clean pre-emphasized output after it.
Two common mistakes: (1) substituting the WQFN-32 package variant on a TQFP-48 footprint - the packages are not pin-compatible and require a new PCB layout. (2) Confusing DS15BR400 with DS15BR401 polarity conventions in a link that assumes specific P/N pair phasing; verify output polarity in the datasheet pin table before swapping. Also confirm pre-emphasis suitability for your actual channel loss - a short, low-loss link may see increased far-end crosstalk from over-emphasized edges.
Información de cumplimiento
NOPB suffix indicates No Pull (no pulled/BGA balls variant naming); RoHS/lead-free status was not explicitly stated in the provided web data and must be confirmed on the TI product page or distributor compliance certificates.
