EL4340 - 500MHz Triple 2:1 Mux Video Amplifier | Renesas
N.º de pieza: EL4340 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $9.85 | $9,85 |
| 10 | $8.92 | $89,20 |
| 100 | $7.65 | $765,00 |
| 500 | $6.42 | $3.210,00 |
| 1.000 | $5.55 | $5.550,00 |
EL4340 Descripción general
Key features include 500 MHz small-signal bandwidth at -3 dB, an 800 V/us slew rate (typical), a high-impedance output disable (HIZ) state that allows multiple device outputs to be wire-OR'd onto a shared output bus, and a per-channel ENABLE (power-down) pin that drops quiescent current in unselected channels for power-sensitive portable video designs. Output drive supports 2 Vp-p into 150 ohm back-terminated video loads.
Internally the EL4340 uses a current-feedback architecture with three matched transimpedance input stages and high-speed complementary output stages. The unity-gain buffer simplifies board layout by eliminating feedback components, while the integrated 2:1 input mux eliminates the need for external mechanical or relay switching. Each channel has independent logic inputs (INA0/INA1, INB0/INB1, INC0/INC1) plus HIZ and EN control lines, allowing flexible source selection for triple-channel video systems.
Typical applications include RGB video routers, video-on-demand switches, A/V receivers, projectors, broadcast studio equipment, surveillance systems, and digital signage. The HIZ and EN features make it especially attractive for large matrix switches where outputs of multiple EL4340 devices are bussed together. The wide supply range (single 5V or +/-5V) supports both portable and AC-powered systems.
When designing with the EL4340, keep the analog input traces matched in length and impedance (75 ohm typical for video) and place 0.1 uF decoupling capacitors within 5 mm of each supply pin. Use 75 ohm back-termination at the output when driving long cable runs to absorb reflections. Drive ENABLE high only when the channel is active to minimize total system power.
Alternativas directas para EL4340 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
EL4340IUZ-T13
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EL4340IU-T7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EL4342IUZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
EL4340 Valores máximos y características eléctricas
| Product Type | Triple 2:1 Multiplexing Video Amplifier |
| Number of Channels | 3 |
| Configuration | 2:1 mux amp, fixed unity gain |
| -3 dB Bandwidth | 500 MHz |
| Slew Rate | 800 V/us |
| Gain | 1 (fixed) |
| Supply Voltage (Single) | 5 V (typical) |
| Supply Voltage (Dual) | +/-5 V |
| Output Disable Mode | HIZ (high-impedance state) |
| Power-Down Mode | ENABLE pin per channel |
| Encapsulado | 24-QSOP (IUZ) |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +85C |
| Estado RoHS | Compliant |
| Applications | Video routing, RGB switching, broadcast, projectors |
Configuración de pines de EL4340
| Pin 1 | INA0 — Channel A input 0 |
| Pin 2 | INA1 — Channel A input 1 |
| Pin 3 | GND — Ground |
| Pin 4 | INB0 — Channel B input 0 |
| Pin 5 | INB1 — Channel B input 1 |
| Pin 6 | V+ — Positive supply |
| Pin 7 | INC0 — Channel C input 0 |
| Pin 8 | INC1 — Channel C input 1 |
| Pin 9 | GND — Ground |
| Pin 10 | ENABLE_A — Channel A enable/power-down |
| Pin 11 | ENABLE_B — Channel B enable/power-down |
| Pin 12 | ENABLE_C — Channel C enable/power-down |
| Pin 13 | OUTA — Channel A output |
| Pin 14 | OUTB — Channel B output |
| Pin 15 | OUTC — Channel C output |
| Pin 16 | HIZ — High-impedance output disable (active low) |
| Pin 17 | V- — Negative supply (dual-supply mode) |
| Pin 18 | NC — Not connected (per datasheet) |
| Pin 19 | NC — Not connected (per datasheet) |
| Pin 20 | NC — Not connected (per datasheet) |
| Pin 21 | NC — Not connected (per datasheet) |
| Pin 22 | NC — Not connected (per datasheet) |
| Pin 23 | NC — Not connected (per datasheet) |
| Pin 24 | NC — Not connected (per datasheet) |
Aplicaciones típicas
EL4340 es adecuado para 7 aplicacións: RGB Video Router Matrix, Video Projector Input Selection, Broadcast Studio Video Switcher, Digital Signage Video Distribution, Surveillance Video Multiplexer, A/V Receiver HDMI Switching Front-End, Medical Imaging Video Path.
RGB Video Router Matrix
The EL4340's 500 MHz bandwidth and HIZ output disable make it ideal for RGB video router matrices where outputs of multiple devices are wire-OR'd onto shared buses. Each EL4340 provides three matched channels for RGB or YPbPr, eliminating skew between color planes. The HIZ feature allows N devices to share M output buses without external switching. ENABLE per channel drops quiescent current when channels are inactive, supporting large matrices with hundreds of crosspoints. Compared to mechanical or FET switches, the integrated solution reduces board area by 60 percent and improves channel-to-channel gain matching. Designers should use 75 ohm controlled-impedance traces and 75 ohm back-termination at the output to absorb reflections on long cable runs.
Recomendado
Video Projector Input Selection
Front projectors and rear-projection TVs require clean switching between HDMI, component, VGA, and composite inputs. The EL4340's 500 MHz bandwidth preserves 1080p60 pixel clocks (148.5 MHz) with substantial margin, while its 800 V/us slew rate maintains edge fidelity for HDCP-encrypted content paths. Three channels per IC align with RGB or YPbPr triple-channel routing, simplifying PCB layout versus discrete mux-plus-buffer solutions. The ENABLE pin allows the host MCU to power down unused input paths during standby, reducing projector idle power by tens of milliwatts per channel. HIZ supports output sharing when bridging to multiple display engines.
Recomendado
Broadcast Studio Video Switcher
Broadcast studios demand pristine signal integrity for SDI and analog component video routing. The EL4340's unity-gain architecture and current-feedback topology yield low differential gain/phase, critical for broadcast-grade video. Three matched channels support YPbPr or RGB routing between cameras, graphics systems, and master control. The 24-QSOP footprint allows dense PCB layouts typical of 1RU rack-mounted routers. ENABLE logic integrates with production switcher GPI/O, allowing automatic channel shutdown during commercial breaks. HIZ output enables redundant router designs where backup paths share output buses with primary paths for hot-swappable maintenance.
Recomendado
Digital Signage Video Distribution
Digital signage networks distribute HDMI/DVI/analog video from media players to arrays of displays over varying cable lengths. The EL4340's 500 MHz bandwidth supports DVI single-link (165 MHz pixel clock) and 1080p HDMI video, while its HIZ feature allows multiple media players to feed a single display with seamless switching. Triple-channel architecture aligns with RGB/YPbPr distribution amplifiers and matrix switches used in retail signage. The ENABLE pin supports deep-sleep power-down between scheduled content updates, cutting signage idle power. Per the Renesas datasheet, output drive supports 2 Vp-p into 150 ohm back-terminated loads typical of long cable runs.
Recomendado
Surveillance Video Multiplexer
Multi-camera surveillance systems aggregate N camera inputs onto M display or recording channels. The EL4340's 2:1 mux per channel allows compact selection between primary and backup cameras, while HIZ enables bus-sharing across multiple EL4340 devices for larger matrices. Three channels per IC support RGB camera chains or stacked mono-camera paths. The ENABLE pin powers down idle cameras during off-hours, an important feature for solar-powered or battery-backed surveillance deployments. Unity gain eliminates feedback network design, simplifying PCB layout versus variable-gain alternatives. Bandwidth margin supports standard-definition composite and HD analog formats up to 1080p.
Recomendado
A/V Receiver HDMI Switching Front-End
A/V receivers must switch between HDMI, component, composite, and S-Video sources while preserving signal integrity. The EL4340's 500 MHz bandwidth and HIZ output allow multiple EL4340 devices to feed a common HDMI transmitter or component video DAC bus. Three channels align with component video YPbPr routing, replacing three discrete 2:1 muxes with one IC, saving board area. ENABLE logic supports HDMI-CEC-triggered shutdown of unused analog paths. Per the Renesas datasheet, output drive into 150 ohm loads supports long internal cabling between input boards and main processor boards. RoHS compliance simplifies global product certification.
Recomendado
Medical Imaging Video Path
Medical imaging systems such as endoscopy carts and surgical displays require low-noise, wide-bandwidth video routing for diagnostic clarity. The EL4340's unity-gain current-feedback topology delivers low differential gain and phase, preserving grayscale fidelity critical for diagnostic interpretation. Triple-channel architecture aligns with RGB or YPbPr video chains from camera processors to displays. The HIZ feature supports redundant display paths for failover safety, while ENABLE supports deep-sleep during imaging pauses to extend battery runtime on portable carts. Per Renesas, the device's 24-QSOP package simplifies assembly of medical-grade PCBs. Designers should validate EMI/EMC compliance per IEC 60601-1 system-level requirements.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para EL4340 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | EL4340IUZ-T13 | EL4340IU-T7 | EL4342IUZ |
|---|---|---|---|---|
| Package | 24-QSOP | 24-QSOP - same | 24-QSOP - same | 24-QSOP - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Bandwidth (-3 dB) | 500 MHz | 500 MHz | 500 MHz | 500 MHz |
| Mux Configuration | 2:1 | 2:1 | 2:1 | 3:1 |
| Slew Rate | 800 V/us | 800 V/us | 800 V/us | 800 V/us |
| HIZ Output Disable | Yes | Yes | Yes | Yes |
| ENABLE Power-Down | Per channel | Per channel | Per channel | Per channel |
| Gain | 1 (fixed) | 1 (fixed) | 1 (fixed) | 1 (fixed) |
Diferenciadores clave
- Integrated HIZ output disable for bus sharing (frente a EL4342IUZ)
- Triple matched channels on one die (frente a Discrete mux + buffer solutions)
- Per-channel ENABLE for power savings (frente a Single global ENABLE alternatives)
Notas de diseño
Use 75 ohm controlled-impedance traces for all analog input and output paths to preserve signal integrity at 500 MHz. Place 0.1 uF decoupling capacitors within 5 mm of each V+ and V- supply pin, and add a 10 uF bulk capacitor near the IC. Match trace lengths between RGB channels to minimize channel-to-channel skew in triple-channel video paths.
Drive ENABLE pins high only for active channels to minimize quiescent current. In large matrix routers, this can save tens of milliwatts per channel during low-traffic periods. HIZ output disable allows multiple EL4340 devices to share output buses without contention, but ensure ENABLE logic timing does not create bus contention windows.
Do not float unused input pins; tie unused 2:1 mux inputs to ground through 1k ohm resistors to prevent ESD coupling and stray pickup. Verify ENABLE pin polarity for each design revision, as Renesas and Intersil legacy revisions have different active-high/active-low conventions. Always add 75 ohm back-termination at the output when driving cables longer than 50 mm to absorb reflections.
Información de cumplimiento
RoHS compliant per Renesas product page. IUZ suffix indicates lead-free / RoHS-compliant. AEC-Q100 not applicable (consumer/video amplifier, not automotive grade).
