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Texas Instruments TS3DV421DGVR
- Part No.:
- TS3DV421DGVR
- Manufacturer:
- Texas Instruments
- Category:
- Video Processing
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS3DV421DGVR.pdf
- Description:
- IC VIDEO SWITCH 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,295
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Product details
Overview
TS3DV421DGVR from Texas Instruments is a 4-channel differential 2:1 HDMI/DVI multiplexer switch in TVSOP-48 package, supporting 3.8 Gbps data rate, 4.95 Gbps single-link bandwidth, and 1080p/SXGA video formats. It features 12.5 Ω max ON-state resistance, –50 dB typical crosstalk at 1.65 Gbps, and operates with VDD = 3.3 V / VSS = 1.5 V for HDMI applications.
For engineers reviewing the TS3DV421DGVR datasheet, TS3DV421DGVR pinout, TS3DV421DGVR application, or TS3DV421DGVR equivalent, this page delivers verified electrical specs, TMDS channel routing behavior, supply voltage configuration requirements, and real-world sink-side HDMI port expansion use cases.
Technical Context
The TS3DV421DGVR implements a pass-transistor-based 2:1 differential multiplexer architecture with one SEL control input, enabling bidirectional signal routing between two HDMI source ports (A/B) and one sink port. Its low rON(flat) = 0.5 Ω typ ensures minimal signal distortion across the 100-Ω differential TMDS interface.
It supports dual-voltage operation: 1.5–2.1 V (VSS = GND) for DisplayPort, or 3.0–3.6 V (VSS = 1.5 V) for HDMI/DVI. The device maintains HDCP transparency and enters high-impedance state on unselected channels, preserving signal integrity and preventing interference between active and inactive paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 3.8 Gbps - supports HDMI v1.3/DVI 1.0 pixel clock ×10 serial streams |
| Bandwidth | 4.95 Gbps (single-link) - enables full 1080p/75 Hz and SXGA (1280×1024) video |
| rON (max) | 12.5 Ω - minimizes insertion loss and preserves TMDS eye diagram integrity |
| Crosstalk (XTALK) | –50 dB typ @ 1.65 Gbps - prevents inter-channel interference in multi-source routing |
| Off Isolation (OIRR) | –50 dB typ @ 1.65 Gbps - suppresses leakage from inactive port into active receiver path |
| Bit-to-Bit Skew | 0.1 ns max - maintains tight timing alignment across all four TMDS channels |
| VDD Operating Range | 3.0–3.6 V (with VSS = 1.5 V) - matches HDMI common-mode voltage requirement |
Pinout & Package
TS3DV421DGVR uses a 48-pin TVSOP (DGV) package with exposed thermal pad. Pin numbering follows standard TVSOP top-view orientation; pin 1 is located at bottom-left corner adjacent to index marking. The exposed center pad must be connected to VSS for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TMDS0+ / TMDS0– | Sink-side differential data pair (channel 0) | Connects to HDMI receiver's primary TMDS data lane; requires 100-Ω differential PCB trace |
| TMDS1+ / TMDS1– | Sink-side differential data pair (channel 1) | Carries TMDS video data lane 1; routed through same controlled-impedance layout as TMDS0 |
| TMDS2+ / TMDS2– | Sink-side differential data pair (channel 2) | Supports RGB or YCbCr color component transmission; matched length critical for skew control |
| TMDSCLK+ / TMDSCLK– | Sink-side differential clock pair | Provides pixel clock reference; highest sensitivity to jitter-requires shortest possible trace length |
| ATMDS0+ to ATMDSCLK– | Port A source-side TMDS I/O | Connects to first HDMI source (e.g., Blu-ray player); high-impedance when SEL = H |
| BTMDS0+ to BTMDSCLK– | Port B source-side TMDS I/O | Connects to second HDMI source (e.g., game console); high-impedance when SEL = L |
| SEL | Digital select input | Active-low/high logic selects A or B port; referenced to VSS; compatible with 1.8-V GPIO |
| VDD (pins 2,4,12,21,23,25,36,48) | Positive supply rail | Must be decoupled locally with 0.1 µF ceramic capacitor per VDD pin |
| VSS (pins 1,5,10,14,17,20,22,24,26,31,37,42,47) | Negative supply rail | Set to 1.5 V for HDMI mode; ties to exposed thermal pad for thermal management |
Key Features
| Feature | Design Value |
|---|---|
| HDMI v1.3 / DVI 1.0 compatibility | Guarantees interoperability with certified source/sink devices without protocol translation |
| Ioff partial-power-down support | Prevents back-drive current when VDD = 0 V, enabling safe hot-swap in powered systems |
| Low flat ON-resistance variation | rON(flat) = 0.5 Ω typ ensures uniform signal attenuation across full TMDS common-mode range |
| High off-isolation & low crosstalk | –50 dB isolation and crosstalk minimize ghosting and noise coupling in multi-source environments |
| ESD robustness | 2000-V HBM and 1000-V CDM ratings protect against handling and system-level ESD events |
Applications
| HDMI Source Selector for AV Receiver | HDTV Input Multiplexer |
|---|---|
Use Scenario: An AV receiver with two HDMI inputs (cable box + streaming stick) routes to single HDMI output driving a projector. IC Role / Device Role / Timing Role: TS3DV421DGVR acts as a bidirectional 2:1 TMDS multiplexer, selecting active source under microcontroller GPIO control while blocking idle path. Use Value: Enables seamless switching without HDCP re-authentication delay; preserves 1080p60 signal fidelity via <0.1 ns skew and 4.95 Gbps bandwidth. |
Use Scenario: A smart HDTV integrates multiple HDMI sources (game console, Blu-ray, PC) but has only one internal HDMI receiver IC. IC Role / Device Role / Timing Role: TS3DV421DGVR serves as a front-end analog switch, dynamically assigning physical HDMI connectors to shared TMDS receiver lanes. Use Value: Reduces BOM cost by eliminating redundant receiver ICs; maintains compliance with HDMI v1.3 eye mask due to 12.5 Ω rON and low capacitance (CON = 4.5 pF max). |
| DVI-D Dual-Monitor KVM Switch | HDCP-Compliant Video Distribution |
Use Scenario: Industrial KVM system routes DVI-D signals from two PCs to one monitor, requiring flicker-free switching. IC Role / Device Role / Timing Role: TS3DV421DGVR functions as a differential 2:1 mux with high-speed digital control, isolating inactive source to prevent ground loops. Use Value: Achieves sub-10 ns propagation delay and <0.1 ns bit skew-critical for maintaining DVI sync timing and avoiding display artifacts. |
Use Scenario: Digital signage controller distributes identical HDMI content to multiple displays using a tree topology with embedded repeaters. IC Role / Device Role / Timing Role: TS3DV421DGVR provides transparent HDCP passthrough in distribution nodes, preserving encryption handshake integrity. Use Value: Supports HDCP 1.4 compliance without decryption/re-encryption; avoids licensing complexity while enabling secure multi-display replication. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI/DVI multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3DV642RGZR | 6-channel 2:1 mux in 64-pin QFN; higher channel count, 5.4 Gbps bandwidth | Designed for 4K-capable HDMI 2.0 routing; requires larger PCB area and tighter layout control | Choose for future-proofing beyond 1080p or when expanding to six TMDS lanes (e.g., dual-link DVI) |
| PI3DBS16412ZLSEX | 4-channel 2:1 mux with integrated equalization; 6 Gbps capability; 1.8-V only supply | Optimized for long-cable HDMI 2.0; lacks dual-voltage flexibility and requires external EQ tuning | Prefer when signal integrity over >5 m cables is critical; not drop-in due to different supply scheme and biasing |
Compared with TS3DV642RGZR and PI3DBS16412ZLSEX, the TS3DV421DGVR offers optimal balance of 1080p performance, dual-voltage HDMI/DVI support, and compact TVSOP-48 footprint-making it ideal for cost-sensitive, space-constrained consumer electronics where 3.8 Gbps suffices.
Availability
TS3DV421DGVR is available at Aetrix Electronics and suitable for HDMI source selection, DVI-KVM switching, HDTV input multiplexing, industrial video distribution, and consumer AV equipment requiring stable component supply across production lifecycles.
Supply support for TS3DV421DGVR 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 technologies, with decades of expertise in high-speed interface solutions.
The TS3DV421DGVR belongs to TI's high-speed analog switch portfolio, engineered specifically for HDMI/DVI signal routing in consumer and professional AV equipment where signal fidelity, HDCP transparency, and layout simplicity are essential.
FAQ
What voltage levels must be applied to VDD and VSS for HDMI operation of the TS3DV421DGVR?
The TS3DV421DGVR requires VDD = 3.3 V and VSS = 1.5 V for HDMI/DVI applications, as specified in the recommended operating conditions table. This dual-rail configuration establishes the correct 1.5 V common-mode voltage on TMDS lines. Using VSS = GND instead results in non-compliant signal levels and potential link failure. The TS3DV421DGVR datasheet explicitly defines these values for HDMI mode.
Does the TS3DV421DGVR support HDCP passthrough, and how is it implemented?
Yes, the TS3DV421DGVR supports HDCP passthrough transparently-no modification or decryption of encrypted content occurs. As a passive analog switch, it routes TMDS data and clock signals unchanged, allowing the downstream HDMI receiver to perform full HDCP authentication. This behavior is confirmed in the device description and typical application diagrams, where HDCP is shown flowing end-to-end through the TS3DV421DGVR.
Can the TS3DV421DGVR be used in DisplayPort applications, and what are the supply requirements?
Yes, the TS3DV421DGVR supports DisplayPort applications with VDD = 1.8 V and VSS = GND, as stated in the features list and recommended operating conditions. Its bandwidth and low skew meet DP 1.2a requirements for HBR2 (5.4 Gbps) in de-skewed configurations. However, native DP AUX channel switching is not supported-the TS3DV421DGVR handles only the main link (lane 0–3 and clock), requiring separate AUX routing.
What is the function of the exposed thermal pad on the TS3DV421DGVR TVSOP package?
The exposed thermal pad on the TS3DV421DGVR must be soldered to a VSS plane on the PCB for thermal dissipation and electrical stability. Per TI documentation, it is electrically connected to VSS and must not float. Proper connection reduces junction temperature rise during sustained 3.8 Gbps operation and improves ESD robustness. The TS3DV421DGVR datasheet specifies this requirement in both the terminal functions and mechanical drawings sections.
How does the SEL pin control signal routing in the TS3DV421DGVR, and what logic levels are valid?
The SEL pin on the TS3DV421DGVR selects between Port A (SEL = L) and Port B (SEL = H). Valid logic thresholds depend on VDD/VSS: for VDD = 3.3 V / VSS = 1.5 V, VIH ≥ 0.65(VDD–VSS) + VSS = 2.65 V and VIL ≤ 0.35(VDD–VSS) + VSS = 2.15 V. The TS3DV421DGVR functional diagram and truth table confirm that SEL is referenced to VSS, not GND, making it compatible with 1.8-V GPIO when VSS = GND.
TS3DV421DGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 48-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Switch
- Applications:
- Consumer Video
- Standards:
- DVI 1.0, HDMI 1.3
- Control Interface:
- Serial
- Voltage - Supply:
- 1.5V ~ 2.1V, 3.0V ~ 3.6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-TVSOP
TS3DV421DGVR FAQ
1.How can I place an order for TS3DV421DGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TS3DV421DGVR 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 TS3DV421DGVR reliable?
The price and inventory of TS3DV421DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS3DV421DGVR is usually 5 days.
3.What payment methods are accepted for TS3DV421DGVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS3DV421DGVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS3DV421DGVR?
TS3DV421DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS3DV421DGVR 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 TS3DV421DGVR?
For technical support, including TS3DV421DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS3DV421DGVR requirements.
6.How does Aetrix verify that TS3DV421DGVR is sourced from the original manufacturer or authorized distributors?
All TS3DV421DGVR 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 TS3DV421DGVR meets industry standards.
7.What is the process for return or replacement of TS3DV421DGVR?
All TS3DV421DGVR units undergo pre-shipment inspection (PSI). If there is an issue with TS3DV421DGVR, 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 TS3DV421DGVR part is unused and in its original packaging.
Return procedure for TS3DV421DGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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