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Renesas EL4543IUZ-T7
- Part No.:
- EL4543IUZ-T7
- Manufacturer:
- Renesas
- Category:
- Video Amps and Modules
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
EL4543IUZ-T7.pdf
- Description:
- IC AMP DRIVER 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,560
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Product details
Overview
EL4543IUZ-T7 from Renesas Electronics is a triple differential twisted-pair driver IC with integrated common-mode sync encoding for RGB video transmission. It provides 350MHz bandwidth, 1200V/µs slew rate, and ±50mA output drive across three fully differential channels, enabling VGA-over-CAT5 transmission up to 200ft without equalization. Its single 5V–12V supply operation and ground-referenced inputs support cost-effective single-supply video interface designs.
For engineers reviewing the EL4543IUZ-T7 datasheet, EL4543IUZ-T7 pinout, EL4543IUZ-T7 application, or EL4543IUZ-T7 equivalent, key selection criteria include common-mode sync encoding capability, differential gain stability at 2×, input common-mode range extending to VS−, enable/disable timing (212ns/900ns), and QSOP-24 package compatibility with CAT5-based RGB+sync systems.
Technical Context
The EL4543IUZ-T7 integrates three independent high-speed differential amplifiers, each with fixed +2 V/V gain and internal VREF nodes driven by a logic encoding block. HSYNC and VSYNC inputs are translated into discrete common-mode DC levels (2.0V/2.5V/3.0V) per channel as defined in Table 1, superimposed on differential RGB outputs without requiring external sync lines.
Its input stage supports single-ended or differential video signals with rail-to-rail common-mode input range down to VS−, while output drive protection limits current to 60mA typical. The enable pin (EN) controls full-channel power-down with TTL/CMOS-compatible thresholds referenced to VS−, reducing supply current to 1.8mA on VS+ during disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 350MHz - supports full-bandwidth analog RGB video transmission up to SXGA resolution over twisted pair. |
| Slew Rate | 1200V/µs - ensures minimal transient distortion for fast video edge transitions and sync pulses. |
| Output Current | ±50mA min - drives standard 100Ω twisted-pair differential loads with margin for cable loss and termination. |
| Supply Range | 5V to 12V single supply - eliminates need for negative rail in most embedded video interface applications. |
| Sync Encoding | H/V sync mapped to 3 discrete CM levels (2.0V/2.5V/3.0V) - enables lossless sync recovery at receiver using passive resistor networks. |
| Input CM Range | Extends to VS− - allows direct connection of ground-referenced VGA sources without level-shifting circuitry. |
| THD @ 5MHz | −75dB - preserves color fidelity and luminance accuracy in analog video signal chains. |
Pinout & Package
EL4543IUZ-T7 is packaged in a 24-lead QSOP (M24.15) with exposed thermal pad connected internally to VS−. Pin layout supports compact PCB routing for three differential pairs plus dual sync inputs and enable control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 18) | Enable control input | Active-low TTL/CMOS-compatible shutdown; powers down all three channels in 212ns, reduces supply current to 1.8mA. |
| VINA+/VINA− (Pins 19/20) | Differential input A | Accepts red video signal; fully differential architecture rejects common-mode noise on CAT5 cable. |
| VOUTA+/VOUTA− (Pins 24/23) | Differential output A | Drives red differential pair; common-mode level encodes HSYNC/VSYNC state per Table 1. |
| VINB+/VINB− (Pins 4/5) | Differential input B | Accepts green video signal; identical gain and bandwidth to channel A for RGB color matching. |
| VOUTB+/VOUTB− (Pins 12/11) | Differential output B | Drives green differential pair; maintains <0.01° differential phase error for accurate color timing. |
| VINC+/VINC− (Pins 6/7) | Differential input C | Accepts blue video signal; input bias current ≤−10µA minimizes DC offset accumulation in long traces. |
| VOUTC+/VOUTC− (Pins 15/14) | Differential output C | Drives blue differential pair; output impedance flat to 100MHz ensures stable termination into 100Ω twisted pair. |
| HSYNC (Pin 2) | Horizontal sync logic input | Accepts 0–3V logic swing referenced to VS−; threshold = 1.4V typical at 5V supply. |
| VSYNC (Pin 1) | Vertical sync logic input | Accepts 0–3V logic swing referenced to VS−; used with HSYNC to determine common-mode voltage per Table 1. |
| VS+ (Pin 21), VS− (Pin 20) | Power supply rails | Support 5V–12V single supply; VS− connects to thermal pad for improved thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Triple differential amplifier architecture | Three matched +2× gain channels eliminate inter-channel gain/phase mismatch critical for RGB color fidelity. |
| Integrated sync encoding logic | Eliminates separate sync drivers and dedicated wires-reduces system BOM count and CAT5 pair usage from 4 to 3. |
| Rail-to-rail input common-mode range | Enables direct interface with ground-referenced VGA sources without level shifters or AC coupling capacitors. |
| Fast enable/disable timing | 212ns wake-up and 900ns shutdown allow dynamic power gating in portable or energy-sensitive video systems. |
| Low harmonic distortion | −75dB at 5MHz ensures minimal color bleeding and cross-luminance artifacts in analog video transmission. |
Applications
| VGA-over-CAT5 Transmitter | RGB Video Distribution System |
|---|---|
Use Scenario: Transmitting analog VGA signals (640×480 to 1280×1024) from PC or graphics card over 100ft CAT5 cable to remote display. IC Role / Device Role / Timing Role: Differential line driver converting single-ended RGB + H/V sync into three balanced differential pairs with encoded common-mode sync. Use Value: Replaces four coaxial cables with one CAT5 cable bundle, cutting installation labor and material cost by >60% versus traditional analog video cabling. | Use Scenario: Centralized video source feeding multiple displays in digital signage, kiosk, or AV control room environments. IC Role / Device Role / Timing Role: High-fidelity RGB driver maintaining sub-0.01° differential phase and 0.01% differential gain across all three channels. Use Value: Preserves color accuracy and timing integrity over extended cable runs, eliminating visible hue shifts or image tearing at display end. |
| Long-Distance Analog Video Link | Noise-Immune Industrial Video Interface |
Use Scenario: Driving RGB video over 200ft CAT5 in factory automation where equalization is omitted for simplicity and cost. IC Role / Device Role / Timing Role: High-slew-rate differential transmitter compensating for cable attenuation via robust 350MHz bandwidth and 1200V/µs slew rate. Use Value: Delivers usable video quality without active equalizer ICs-reducing component count and board space in space-constrained enclosures. | Use Scenario: Connecting machine vision camera to controller in EMI-heavy industrial settings with variable ground potentials. IC Role / Device Role / Timing Role: Common-mode noise rejection amplifier with >60dB CMRR and differential signaling immune to ground loop interference. Use Value: Maintains stable video sync and color fidelity despite >10V ground potential differences between camera and host system. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple differential video driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EL4543ILZ-T7 | Same silicon die, but in 20-lead QFN (4×4mm) with exposed thermal pad tied to VS−. | Higher thermal performance (θJA = 40°C/W vs 88°C/W) and smaller footprint; requires different PCB layout and reflow profile. | Select EL4543ILZ-T7 for space-constrained or thermally demanding applications; EL4543IUZ-T7 preferred for legacy QSOP-compatible designs. |
| EL5375IUZ | Triple differential driver without sync encoding; requires external logic and buffers to replicate H/V sync transmission. | Cannot natively encode sync onto common mode-adds 3–5 extra components and routing complexity to achieve same CAT5 pair reduction. | Choose EL5375IUZ only when sync is handled separately (e.g., embedded microcontroller GPIO), not for drop-in RGB+sync CAT5 systems. |
Compared with EL4543ILZ-T7, EL4543IUZ-T7 offers proven QSOP manufacturability and thermal margin for moderate-power video links; compared with EL5375IUZ, it delivers native sync encoding that eliminates external logic, reduces BOM count, and guarantees deterministic common-mode voltage mapping per Table 1.
Availability
EL4543IUZ-T7 is available at Aetrix Electronics and suitable for VGA-over-CAT5 transmitters, RGB video distribution systems, and noise-immune industrial video interfaces requiring stable component supply and long-term lifecycle support.
Supply support for EL4543IUZ-T7 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
Renesas Electronics is a global semiconductor leader delivering high-performance analog, mixed-signal, and power management solutions for industrial, automotive, and communications markets.
The EL4543 product line targets cost-sensitive analog video infrastructure, specifically enabling high-fidelity RGB transmission over low-cost twisted-pair cabling while integrating sync encoding to reduce system-level complexity.
FAQ
What is the function of the EN pin on the EL4543IUZ-T7?
The EN pin on the EL4543IUZ-T7 is an active-low enable control that powers down all three differential amplifier channels. When pulled high (≥1.4V at 5V supply), it disables video outputs and reduces total supply current to 1.8mA on VS+. The EL4543IUZ-T7 wakes up in 212ns and shuts down in 900ns, supporting dynamic power management in battery-powered or thermally constrained video systems.
How does the EL4543IUZ-T7 encode HSYNC and VSYNC onto the common mode?
The EL4543IUZ-T7 encodes HSYNC and VSYNC using an internal logic block that maps the two logic inputs to three discrete common-mode DC voltage levels (2.0V, 2.5V, 3.0V) across its Red, Green, and Blue differential outputs, as defined in Table 1 of the datasheet. This encoding occurs without altering the differential video signal, allowing sync recovery at the receiver via simple resistor networks-no additional transmission lines or buffers required for EL4543IUZ-T7 sync transmission.
Can the EL4543IUZ-T7 operate from a single 5V supply?
Yes, the EL4543IUZ-T7 operates from a single 5V to 12V supply, with VS− grounded. Its input common-mode range extends to VS−, enabling direct interface with ground-referenced VGA sources. Logic thresholds for HSYNC, VSYNC, and EN are referenced to VS−, making EL4543IUZ-T7 fully compatible with standard 0–5V TTL/CMOS logic levels in single-supply configurations.
What is the maximum recommended cable length for EL4543IUZ-T7 without equalization?
The EL4543IUZ-T7 supports reliable VGA video transmission up to 200ft over standard CAT5 twisted-pair cable without external equalization. Beyond this distance, high-frequency attenuation degrades signal integrity; for longer runs (up to 1000ft), Renesas recommends pairing the EL4543IUZ-T7 with the EL9110 equalizer IC in the SXGA Video Transmission System to restore high-frequency content and maintain sync decoding accuracy.
Does the EL4543IUZ-T7 require external termination resistors?
Yes, the EL4543IUZ-T7 requires external 50Ω series termination at each output (e.g., VOUTA+, VOUTA−) to match standard 100Ω twisted-pair differential impedance. A common-mode termination resistor (RCM >100Ω) is also needed at the receiver to extract sync voltages without loading the EL4543IUZ-T7 outputs. These terminations are specified in Figure 39 of the datasheet and are essential for signal integrity and sync recovery in EL4543IUZ-T7-based designs.
EL4543IUZ-T7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Driver
- Output Type:
- Differential
- Number of Circuits:
- 3
- -3db Bandwidth:
- 350 MHz
- Slew Rate:
- 1000V/µs
- Current - Supply:
- 14.5 mA
- Current - Output / Channel:
- 60 mA
- Voltage - Supply, Single/Dual (±):
- 5V ~ 12V, ±2.5V ~ 6V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-QSOP
EL4543IUZ-T7 FAQ
1.How can I place an order for EL4543IUZ-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for EL4543IUZ-T7 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 EL4543IUZ-T7 reliable?
The price and inventory of EL4543IUZ-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL4543IUZ-T7 is usually 5 days.
3.What payment methods are accepted for EL4543IUZ-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL4543IUZ-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL4543IUZ-T7?
EL4543IUZ-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL4543IUZ-T7 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 EL4543IUZ-T7?
For technical support, including EL4543IUZ-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL4543IUZ-T7 requirements.
6.How does Aetrix verify that EL4543IUZ-T7 is sourced from the original manufacturer or authorized distributors?
All EL4543IUZ-T7 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 EL4543IUZ-T7 meets industry standards.
7.What is the process for return or replacement of EL4543IUZ-T7?
All EL4543IUZ-T7 units undergo pre-shipment inspection (PSI). If there is an issue with EL4543IUZ-T7, 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 EL4543IUZ-T7 part is unused and in its original packaging.
Return procedure for EL4543IUZ-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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