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Texas Instruments TDP158RSBT
- Part No.:
- TDP158RSBT
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
TDP158RSBT.pdf
- Description:
- IC INTERFACE SPECIALIZED 40WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,575
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Product details
Overview
TDP158RSBT from Texas Instruments is a 6Gbps AC-coupled HDMI/DisplayPort dual-mode redriver IC that converts TMDS-level signals to HDMI 2.0b-compliant outputs. It supports four differential data lanes and clock, operates on dual supplies (1.1V VDD / 3.3V VCC), delivers up to 15.5dB fixed receiver equalization, and enables full lane swap - deployed in HDMI dongles, docking stations, and high-resolution display interfaces.
For engineers reviewing the TDP158RSBT datasheet, TDP158RSBT pinout, TDP158RSBT application, or TDP158RSBT equivalent, key selection criteria include its 6Gbps TMDS data rate support, programmable pre-emphasis and slew rate, I²C/pin-strap configuration flexibility, HDMI 2.0b electrical compliance, and WQFN-40 package with thermal pad for high-density PCB layouts.
Technical Context
The TDP158RSBT implements a fully AC-coupled redriver architecture with independent per-lane signal conditioning: fixed receiver EQ (up to 15.5dB), programmable transmit swing via VSADJ resistor (6kΩ nominal), and selectable pre-emphasis (0/3.5dB) and slew rate (122–203ps). It supports both HDMI 2.0b and DisplayPort dual-mode 1.1 standards through configurable I²C registers or pin-strapped control logic.
Its dual-rail power system separates analog (1.1V VDD) and interface (3.3V VCC) domains to minimize noise coupling and enable low-power operation: 200mW active at 6Gbps, 8mW in shutdown. Hot Plug Detect (HPD) pass-through, DDC bidirectional bridging (SDA/SCL source/sink), and automatic standby entry upon clock loss provide robust system-level integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 6 Gbps per TMDS lane - supports 4K@60Hz 24bpp and WUXGA@60Hz 16bpp HDMI 2.0b output |
| Receiver EQ Gain | Programmable fixed gain up to 15.5 dB - compensates channel loss from long cables or FR4 traces |
| Output Swing Control | VSADJ pin accepts 4.5–8 kΩ resistor - sets TMDS output amplitude compliant with HDMI/DP voltage specs |
| Power Consumption | 200 mW at 6Gbps active; 8 mW in shutdown - enabled by dual-rail 1.1V/3.3V supply and OE-controlled power-down |
| Package | 40-pin WQFN (5mm × 5mm, 0.4mm pitch) with exposed thermal pad - optimized for thermal dissipation and compact layout |
| Input Compatibility | AC-coupled TMDS or DP++ physical layer input - no DC bias requirement; supports HDMI 1.4b/2.0b and DVI 1.0 |
| Control Interface | I²C (4-device addressability via A0/A1) or pin-strap mode - enables flexible factory programming or runtime reconfiguration |
Pinout & Package
40-pin RSB package: WQFN, 5mm × 5mm, 0.4mm pitch, with exposed thermal pad (GND). Pin 1 marked by dot; top-side view per Figure 4-1 in SLLSEX2F.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (12,20,31,40) | 1.1V Analog Supply | Primary power rail for redriver core; decoupling required near each pin for signal integrity |
| VCC (11,37) | 3.3V I/O Supply | Supplies DDC, HPD, control logic; separate domain prevents digital noise coupling into analog path |
| IN_Dx/IN_CLK (1–2,4–5,6–7,9–10) | Differential Inputs | AC-coupled TMDS/DP++ inputs; internal 100Ω termination; VID(EYE) range 75–1200 mVpp |
| OUT_Dx/OUT_CLK (24–25,26–27,29–30,21–22) | Differential Outputs | HDMI 2.0b-compliant TMDS outputs; VOD(PP) adjustable 600–1400 mVpp via VSADJ resistor |
| HPD_SRC/HPD_SNK (3,28) | Hot Plug Detect Path | Pass-through HPD signaling with 40–120 ns propagation delay; supports HDMI plug-detect timing |
| SDA/SCL_SRC/SNK (13–14,32–33,38–39) | DDC Bidirectional Bridge | Isolates source/sink DDC buses; supports SCDC at 400 kbps; level-shifted I²C-compatible interface |
| OE (36) | Operation Enable | Active-high enable; deassertion forces 8mW shutdown and clears I²C register state |
| VSADJ (18) | Voltage Swing Bias | External resistor sets output amplitude - 6kΩ for HDMI+DP combo; 6.49kΩ for HDMI-only compliance |
Key Features
| Feature | Design Value |
|---|---|
| Full Lane Swap | Hardware-configurable main-link lane remapping (via SCL_CTL/SWAP pin) - resolves routing congestion without PCB redesign |
| Programmable Slew Rate | Three-step control (122/180/203 ps) via SLEW pin - balances EMI reduction against signal rise-time requirements |
| Source Termination Selection | TERM pin selects 75Ω/150Ω/300Ω or disables termination - optimizes HDMI 1.4b/2.0b output impedance matching |
| Fail-Safe Output Mode | Outputs remain high-impedance during power loss or OE deassertion - prevents bus contention on downstream receivers |
| Automatic Standby Entry | SIG_EN register enables clock-loss detection - transitions to 34mW standby when IN_CLK is invalid, reducing idle power |
Applications
| HDMI Dongle Signal Extension | Docking Station Video Interface |
|---|---|
|
Use Scenario: Extending HDMI 2.0b signals from USB-C or Mini DisplayPort sources over passive cables to monitors. IC Role / Device Role / Timing Role: Redriver restoring signal integrity across AC-coupled interconnects; maintains eye opening at 6Gbps after 10+ inches of FR4 trace + connector loss. Use Value: Enables 4K@60Hz transmission through cost-effective passive dongles without requiring active equalization on source side. |
Use Scenario: Aggregating video outputs from laptops into multi-display docking stations with HDMI, DP, and USB hubs. IC Role / Device Role / Timing Role: Level-shifting and retiming TMDS signals between host GPU and external HDMI ports; bridges DDC/HPD between source and sink. Use Value: Supports simultaneous 4K@60Hz HDMI output alongside USB 3.x and DP 1.4 - eliminates signal degradation from board-level routing. |
| Gaming Console HDMI Adapter | Industrial All-in-One Display Controller |
|
Use Scenario: Converting DisplayPort++ outputs from next-gen gaming consoles to HDMI 2.0b for legacy AV receivers and projectors. IC Role / Device Role / Timing Role: Dual-mode redriver operating in DP++ mode with HDMI output compliance; handles HDCP 2.2 handshaking via DDC bridge. Use Value: Delivers full 4K@60Hz HDR video with <10 ns jitter growth - meets strict gaming latency and color fidelity requirements. |
Use Scenario: Driving high-brightness HDMI panels in medical imaging or factory HMIs where cable runs exceed 15 cm on PCB. IC Role / Device Role / Timing Role: Compensating for insertion loss from long internal flex cables and EMI filters; provides fail-safe output disable during power sequencing. Use Value: Ensures reliable 1080p@120Hz or WUXGA@60Hz operation in thermally constrained enclosures - validated at 85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar redriver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN75DP159RSB | Pin-compatible retimer (not redriver); includes CDR and adaptive EQ; requires reference clock; higher power (≈450mW) | Used where channel loss exceeds 20 dB or jitter accumulation mandates clock recovery | Select SN75DP159RSB only if system-level jitter budget requires CDR - TDP158RSBT suffices for ≤15 dB loss with lower BOM cost |
| PTN3366BS | Single-supply (3.3V) HDMI redriver; no VDD rail; max 3.4Gbps; lacks lane swap and VSADJ control | Targeted at cost-sensitive 1080p/60Hz applications with minimal board space | Choose PTN3366BS for basic HDMI extension under 3.4Gbps; TDP158RSBT required for 4K@60Hz or dual-mode DP++ support |
Compared with SN75DP159RSB and PTN3366BS, the TDP158RSBT uniquely balances 6Gbps HDMI 2.0b redriving, dual-mode DP++ compatibility, and ultra-low-power operation - making it optimal for compact, thermally constrained, high-resolution adapter designs without CDR overhead.
Availability
TDP158RSBT is available at Aetrix Electronics and suitable for HDMI dongles, docking stations, and industrial all-in-one displays requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TDP158RSBT 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 connectivity solutions - with decades of expertise in high-speed interface ICs and display technology.
The TDP158RSBT belongs to TI's high-speed redriver product line, engineered specifically for HDMI 2.0b and DisplayPort dual-mode signal integrity restoration in space-constrained consumer and industrial video systems.
FAQ
What is the maximum supported data rate for TDP158RSBT in HDMI mode?
The TDP158RSBT supports up to 6 Gbps per TMDS lane in HDMI 2.0b mode, enabling 4K@60Hz with 24-bit color depth. This is confirmed in Section 5.6 (DR(RX_DATA)) and Section 3 of the SLLSEX2F datasheet, where 6 Gbps is specified as the maximum data rate under recommended operating conditions.
Does TDP158RSBT require an external clock source?
No, the TDP158RSBT does not require an external clock. It is a redriver - not a retimer - and recovers timing directly from the incoming AC-coupled TMDS or DP++ signal. Its architecture uses data-dependent clock recovery within the analog front-end, eliminating need for reference clocks or PLLs.
Can TDP158RSBT be used in DisplayPort dual-mode applications?
Yes, the TDP158RSBT explicitly supports DisplayPort dual-mode version 1.1 per Section 1 (Features) and Section 7.4 (Device Functional Modes) of the datasheet. It accepts AC-coupled DP++ inputs and outputs HDMI-compliant TMDS signals, enabling seamless conversion in hybrid-source systems.
How is output voltage swing controlled on TDP158RSBT?
Output voltage swing on the TDP158RSBT is set via an external resistor on the VSADJ pin: 6 kΩ for HDMI+DP combination mode and 6.49 kΩ for HDMI-only compliance. This adjusts VOD(PP) between 600–1400 mVpp as verified in Section 5.7 and Figure 5-1 of the datasheet.
What power supply rails does TDP158RSBT require?
The TDP158RSBT requires two independent supplies: 1.1 V (±0.17 V) on VDD pins (12,20,31,40) for analog core, and 3.3 V (3.13–3.47 V) on VCC pins (11,37) for I/O and control logic. This dual-rail design reduces noise coupling and enables 200 mW active power at 6 Gbps.
TDP158RSBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- HDMI
- Interface:
- -
- Voltage - Supply:
- 3.3V
- Supplier Device Package:
- 40-WQFN (5x5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TDP158RSBT FAQ
1.How can I place an order for TDP158RSBT through Aetrix?
Please submit a Request for Quotation (RFQ) for TDP158RSBT 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 TDP158RSBT reliable?
The price and inventory of TDP158RSBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDP158RSBT is usually 5 days.
3.What payment methods are accepted for TDP158RSBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDP158RSBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDP158RSBT?
TDP158RSBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDP158RSBT 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 TDP158RSBT?
For technical support, including TDP158RSBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDP158RSBT requirements.
6.How does Aetrix verify that TDP158RSBT is sourced from the original manufacturer or authorized distributors?
All TDP158RSBT 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 TDP158RSBT meets industry standards.
7.What is the process for return or replacement of TDP158RSBT?
All TDP158RSBT units undergo pre-shipment inspection (PSI). If there is an issue with TDP158RSBT, 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 TDP158RSBT part is unused and in its original packaging.
Return procedure for TDP158RSBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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