TUSB544RNQR 8.1-Gbps 4-Channel USB-C Redriver | Texas Instruments
MPN: TUSB544RNQR ✓ AktifTUSB544RNQR Ringkasan
A linear redriver is a signal-conditioning semiconductor placed between a transmitter and receiver. It receives a degraded high-speed differential signal, compensates for channel loss, and retransmits a cleaner waveform to the next device. The TUSB544 operates at the physical layer and is protocol agnostic, allowing it to support USB Type-C Alternate Mode interfaces such as VESA DisplayPort without decoding the transmitted protocol.
The principal characteristics of the TUSB544RNQR are its four independently conditioned channels, 8.1-Gbps maximum data rate, 3.3 V supply operation, and selectable receive equalization. These features make it suitable for systems where connector launches, cable loss, PCB routing, or long trace segments reduce the margin of a USB Type-C high-speed link. Its stated 10.0 ns delay supports repeatable channel timing in multi-lane links.
The device uses linear rather than digital retiming to recover signal margin. Linear equalization boosts the high-frequency content of the incoming signal, while output de-emphasis reduces the effective amplitude difference between running and alternating data patterns. This approach can preserve protocol flexibility, although the system designer must still verify eye opening, jitter, crosstalk, and electromagnetic-emissions behavior in the completed channel.
Typical applications include USB Type-C docking stations, dual-screen workstations, external storage enclosures, laptops, tablets, and DisplayPort-over-USB-C adapters. The TUSB544 is especially useful where a USB-C receptacle is separated from the host controller by a connector launch, cable, adapter, or relatively long PCB channel. It can also be evaluated in reversible-port implementations because the redriver operates on the differential data lanes rather than interpreting logical USB traffic.
A successful implementation requires careful high-speed PCB layout and validation of the complete channel. Place the redriver close to the connector or loss source, provide a continuous reference plane, route differential pairs with matched impedance, and verify the selected equalization and de-emphasis settings against eye-diagram measurements. Power and ground connections should be short and decoupled close to the device pins.
This page organizes the key electrical characteristics, application guidance, pin-assignment limitations, and verified source links for engineers evaluating the TUSB544RNQR. It also distinguishes confirmed device attributes from parameters that require confirmation from the manufacturer datasheet before layout release.
Alternatif penggantian untuk TUSB544RNQR — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Tidak ada alternatif pengganti yang tersedia untuk produk ini.
Permintaan AlternatifTUSB544RNQR Spesifikasi
| Product Type | USB Type-C multi-protocol linear redriver |
| Maximum Data Rate | 8.1 Gbps |
| Number of Channels | 4 channels |
| Tegangan Pemuat | 3.3 V |
| Propagation Delay | 10.0 ns |
| Signal Conditioning | Input equalization and output de-emphasis |
| Receive Equalization | Multiple selectable levels |
| Interface Compatibility | USB Type-C Alternate Mode, including VESA DisplayPort |
| Protocol Support | Protocol agnostic linear redriver |
| Package Type | 40-pin WQFN |
| Package Dimensions | 6 x 4 mm |
| Tipe Mounting | Surface mount |
| Shipping Package | Tape and reel |
| Product Status | Active |
TUSB544RNQR tape and reel Diamant Konfigurasi Panduan
Konfigurasi pin untuk TUSB544RNQR (tape and reel pakai pakai). Penomoran pin, fungsi, dan diagram koneksi ditetapkan dalam datasheet produsen. Lihatnya untuk footprint dan pedoman perpindahan paruh.
Tidak ada data diatribut pin yang tersedia untuk TUSB544RNQR.
Lihat ke: datasheet produk untuk konfigurasi pin penuh.
Aplikasi Umum
TUSB544RNQR cocok untuk 6 aplikasis: USB-C Docking Stations, DisplayPort-over-USB-C Adapters, Dual-Screen Workstations, External Storage Enclosures, Laptop and Tablet USB-C Ports, Reversible USB-C Port Designs.
USB-C Docking Stations
The TUSB544RNQR fits high-speed USB Type-C paths in docking stations where connector launches, internal cables, and PCB transitions can reduce signal margin. Four conditioned channels cover four differential data lanes, while the 8.1-Gbps capability supports the device’s stated high-speed operating range. Receive equalization can restore high-frequency content lost through the channel, and output de-emphasis can reduce the effective amplitude imbalance created by running and alternating data patterns. Place the redriver near the connector or dominant loss source and validate the complete lane with eye-diagram measurements.
Direkomendasikan
DisplayPort-over-USB-C Adapters
The TUSB544RNQR is applicable to USB Type-C adapters that carry VESA DisplayPort Alternate Mode because it is described as a protocol-agnostic linear redriver. The four channels can condition the high-speed differential lanes without requiring protocol-specific firmware. Its 3.3 V single-supply operation and 8.1-Gbps data-rate capability are useful in compact adapters where retimer power, reference-clock requirements, and added latency would be undesirable. Validate the adapter across the required cable lengths and verify that equalization and de-emphasis remain appropriate for the complete connector-to-display channel.
Direkomendasikan
Dual-Screen Workstations
The TUSB544RNQR can support dual-screen workstation designs in which multiple USB-C connections, display adapters, and internal routing create a challenging high-speed channel. Four independently conditioned channels provide coverage for a four-lane link and help offset loss caused by connector launches and PCB traces. Because the device performs linear conditioning rather than protocol conversion, it can accommodate USB Type-C Alternate Mode traffic while preserving system flexibility. Designers should compare eye height, jitter, and crosstalk with and without equalization to confirm that each lane meets the required display and USB margins.
Direkomendasikan
External Storage Enclosures
The TUSB544RNQR is well suited to external storage products where a USB Type-C receptacle connects through a short PCB channel to a storage controller. Connector transitions and enclosure routing can introduce insertion loss before the signal reaches the controller, and the redriver’s selectable receive equalization is intended to compensate for that loss. Four channels allow one device to service four high-speed differential lanes, with operation up to 8.1 Gbps matching the stated interface capability. Keep the device near the receptacle, preserve differential-pair geometry, and validate eye diagrams across the cable lengths required by the target storage market.
Direkomendasikan
Laptop and Tablet USB-C Ports
The TUSB544RNQR can be evaluated for laptop and tablet designs in which a USB-C receptacle is separated from the host controller by connector launches, protection components, and PCB routing. Its linear redriver architecture supports up to 8.1 Gbps across four channels and provides selectable equalization for channels experiencing inter-symbol interference. The 3.3 V supply and surface-mount 40-WQFN format support integration into compact boards, although exact footprint dimensions and thermal requirements must follow the manufacturer drawings. Validate the implementation with the intended receptacle, cable, and alternate-mode configuration.
Direkomendasikan
Reversible USB-C Port Designs
The TUSB544RNQR supports reversible USB Type-C implementations because linear redrivers operate on differential electrical lanes rather than interpreting logical data direction. Four conditioned channels can improve signal integrity in a port whose lane orientation changes according to plug insertion. Receive equalization and output de-emphasis provide configurable channel compensation for both orientations when the associated system configuration supports them. Confirm the lane-routing strategy, control behavior, and supported protocol matrix in the manufacturer documentation. Eye, jitter, and crosstalk testing should cover both cable orientations and the expected connector insertion combinations.
Direkomendasikan
Data referensi engineering untuk TUSB544RNQR — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini |
|---|---|
| Product Type | USB Type-C multi-protocol linear redriver |
| Brand | Texas Instruments |
| Package | 40-pin WQFN (6 x 4 mm) |
| Maximum Data Rate | 8.1 Gbps |
| Number of Channels | 4 channels |
| Supply Voltage | 3.3 V |
| Propagation Delay | 10.0 ns |
| Signal Conditioning | Input equalization and output de-emphasis |
| Protocol Support | Protocol agnostic; supports USB Type-C Alternate Mode including VESA DisplayPort |
| Product Status | Active |
Diferensiator Kunci
- Protocol-agnostic four-channel signal conditioning (vsTUSB546-DCIRNQR)
- Configurable channel-loss compensation (vsTUSB564RNQR)
- Single-supply integration in a compact surface-mount package (vsTUSB546-DCIRNQR)
Catatan Desain
Place the TUSB544RNQR close to the connector or other dominant loss source, and keep the high-speed differential routes short, impedance controlled, and referenced to a continuous ground plane. Do not route across plane splits or through connector or mounting-hole voids. Use the manufacturer land pattern and pin-description table for the 40-WQFN device, and check the completed USB-C lane with eye-diagram, jitter, insertion-loss, and crosstalk measurements.
Configure receive equalization and output de-emphasis as a channel-level decision rather than applying maximum correction automatically. Start with the loss profile of the intended connector and cable combination, measure the resulting eye, and compare available settings from the manufacturer datasheet. Excessive high-frequency boost or de-emphasis can increase noise or jitter, so the correct setting is the one that produces the required eye margin across temperature and tolerance.
Keep the 3.3 V supply and ground connections short, place decoupling capacitance at the device power pins according to the manufacturer application guidance, and provide a low-impedance path from the exposed package pad if the datasheet specifies thermal-pad connection. Avoid routing high-speed signals beneath noisy power or switching-conductor regions. Review the completed stack-up to confirm that differential impedance and return-path continuity match the channel assumptions used during equalization.
Informasi Konformitas
The device is listed as active. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals status require confirmation from the manufacturer product documentation before an environmental or automotive qualification claim is made.
