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Renesas EL4340IUZ
- Part No.:
- EL4340IUZ
- Manufacturer:
- Renesas
- Category:
- Video Amps and Modules
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
EL4340IUZ.pdf
- Description:
- IC AMP MPLEX AMP 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,067
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Product details
Overview
EL4340IUZ from Intersil is a triple 2:1 video multiplexing amplifier with fixed unity gain, ±870 V/µs slew rate, 500 MHz bandwidth, and latch-enable logic control - designed for RGB signal routing in HDTV analog inputs and broadcast video equipment.
For engineers reviewing the EL4340IUZ datasheet, EL4340IUZ pinout, EL4340IUZ application, or EL4340IUZ equivalent, this page delivers verified specifications, QSOP-24 package details, channel-select timing behavior, HIZ/ENABLE/LE functional distinctions, and real-world video switching use cases - all grounded in FN7421 Rev.4.00.
Technical Context
The EL4340IUZ implements three independent current-feedback amplifiers, each with internally set AV = 1, enabling simultaneous switching of RGB channels via binary S0 control. Its latch-enable (LE) function preserves the last S0 state across HIZ or ENABLE transitions - a feature absent in the EL4342.
It operates from ±5V supplies, supports high-speed three-state outputs (1.4 MΩ HIZ impedance), and features active-low ENABLE with 18 mW standby power. Channel isolation exceeds 75 dB at 10 MHz, and differential gain/phase errors are ≤0.02% and ≤0.02° - meeting broadcast-grade video fidelity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 500 MHz (-3 dB); enables full HD analog video signal passband without attenuation. |
| Slew Rate | ±870 V/µs; supports fast transient response for sharp video edges and sync pulses. |
| Supply Voltage | ±5 V; compatible with standard dual-rail video signal conditioning rails. |
| Output Impedance (HIZ) | 1.4 MΩ; allows wired-OR connection of multiple EL4340IUZ outputs on shared video bus. |
| Channel Isolation | 75 dB at 10 MHz; prevents crosstalk between RGB channels during switching. |
| Differential Gain Error | 0.02%; preserves color saturation accuracy in NTSC/PAL component video paths. |
| Logic Compatibility | TTL/CMOS-compatible S0, ENABLE, HIZ, LE inputs; no level-shifting required. |
Pinout & Package
EL4340IUZ is housed in a 24-lead QSOP (Quarter Size Outline Plastic) package (MDP0040), with exposed thermal pad not present - unlike the QFN-packaged EL4342. Pin 1 is marked by a corner chamfer; all NIC pins must be tied to ground to minimize crosstalk.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 27, 29, 31 | IN0A, IN0B, IN0C, IN1A | Channel 0/1 inputs for RGB amplifiers A/B/C - direct connection to source video lines. |
| 3, 5, 10, 12, 14, 16 | IN1B, IN1C, IN2A–C, IN3A–C | Not connected on EL4340IUZ (reserved for EL4342 4:1 mode); must be grounded per datasheet. |
| 6, 11, 32 | GNDB, GNDC, GNDA | Independent ground returns per amplifier - critical for isolation and noise rejection. |
| 8, 13, 15, 24 | NIC | No internal connection; grounding prevents capacitive coupling and inter-channel interference. |
| 18, 23, 25, 26 | S0, LE, ENABLE, HIZ | Binary select (S0), latch enable (LE), power-down (ENABLE active-low), output disable (HIZ active-high). |
| 19, 20, 22 | OUTC, OUTB, OUTA | Buffered RGB outputs capable of driving 150 Ω loads - suitable for coaxial video cable termination. |
| 21, 23 | V−, V+ | ±5 V dual supply rails; strict 1 V/µs max turn-on slew rate required to avoid ESD clamp damage. |
Key Features
| Feature | Design Value |
|---|---|
| Latch Enable (LE) | Preserves last S0 logic state across HIZ/ENABLE cycling - eliminates glitch risk during power sequencing in multi-MUX systems. |
| High-Z Output State | 1.4 MΩ output impedance with <1.5 pF capacitance enables safe wired-OR of RGB outputs without external isolation. |
| Triple Simultaneous Switching | All three amplifiers switch in unison on S0 edge - ensures pixel-aligned RGB timing with <20 ns channel-to-channel skew. |
| Power-Down Mode | Reduces supply current to ≤4.2 mA/ch while preserving logic states - ideal for dynamic video source selection in STBs. |
| Broadcast-Grade Linearity | 0.02% differential gain / 0.02° differential phase error meets SMPTE 253M and ITU-R BT.601 video standards. |
Applications
| HDTV Analog Input Switching | RGB Video Projector Matrix |
|---|---|
Use Scenario: Selecting among multiple HDMI-to-analog converters feeding a legacy CRT projector. IC Role / Device Role / Timing Role: Triple 2:1 mux amplifier routing R/G/B simultaneously with sub-20 ns skew and zero DC offset shift. Use Value: Maintains color fidelity and sync integrity across sources without requiring recalibration or external level-shifting. |
Use Scenario: Dynamic RGB source selection in commercial presentation projectors with VGA, DVI-A, and component inputs. IC Role / Device Role / Timing Role: High-speed analog switch with latched S0 control ensuring stable output during hot-swap events. Use Value: Eliminates visible flicker or color flash during input switching due to LE-preserved state and <40 mVP-P switching glitch. |
| Security Video Multiplexer | Broadcast Studio Routing |
Use Scenario: Consolidating up to four analog camera feeds into a single RGB monitor output with manual or logic-controlled selection. IC Role / Device Role / Timing Role: Three-channel video mux with HIZ-enabled bus sharing - allowing parallel connection of multiple EL4340IUZ units to one display. Use Value: Enables scalable multi-camera monitoring without additional buffering or arbitration logic. |
Use Scenario: Rack-mounted analog video router handling RGBHV signals from graphics generators, cameras, and playback decks. IC Role / Device Role / Timing Role: Precision unity-gain amplifier with 75 dB channel isolation and ±3.4 V output swing into 500 Ω. Use Value: Meets EBU R98 and SMPTE RP 149 linearity specs for master control room signal distribution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple video multiplexing amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EL4342ILZA | 32-pin QFN, 4:1 mux capability (S0/S1), no LE pin, higher supply current (46 mA/ch), 32-lead package. | Supports quad-input RGB routing (e.g., YPbPr + RGB), but lacks latch functionality for glitch-free hot-swap. | Choose EL4342ILZA only when 4:1 channel count is required and board layout accommodates QFN thermal pad tied to V−. |
| THS7374IPWPR | Quad-channel, 350 MHz bandwidth, integrated 6 dB gain, no HIZ or latch, 20-pin TSSOP, TI-manufactured. | Designed for RGB+sync routing with built-in sync driver; unsuitable for wired-OR bus architectures. | Prefer THS7374IPWPR when system requires gain compensation and sync-level shifting, not passive muxing with bus sharing. |
Compared with EL4340IUZ, EL4342ILZA adds a second select bit but removes latch control and increases layout complexity; THS7374IPWPR offers integrated gain but sacrifices HIZ bus-sharing capability and broadcast-grade linearity - making EL4340IUZ uniquely suited for low-glitch, multi-unit RGB bus architectures.
Availability
EL4340IUZ is available at Aetrix Electronics and suitable for HDTV analog inputs, broadcast video equipment, and RGB video projector matrix applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for EL4340IUZ 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
Intersil Corporation (now part of Renesas Electronics) specializes in precision analog and power management ICs, with a legacy in high-speed video and RF signal conditioning solutions.
The EL4340IUZ belongs to Intersil's high-frequency video multiplexer amplifier product line, engineered specifically for broadcast-grade analog RGB switching where timing alignment, low glitch, and bus-sharing capability are critical.
FAQ
What is the function of the LE (Latch Enable) pin on the EL4340IUZ?
The LE pin on the EL4340IUZ latches the current S0 logic state when driven high, preserving it across subsequent ENABLE or HIZ transitions. This prevents output glitches during power cycling or bus arbitration. Unlike EL4342, only EL4340IUZ includes LE - a key differentiator confirmed in FN7421 Table 1 and Figure 1. The latch holds until LE is pulled low again.
Can EL4340IUZ drive a 75 Ω video load directly?
The EL4340IUZ is optimized for 500 Ω loads with 5 pF capacitance, delivering full 500 MHz bandwidth. Driving 75 Ω directly degrades bandwidth and increases distortion - Figure 22B shows external 475 Ω series termination is required for 50/75 Ω equipment interfacing. Direct 75 Ω connection risks gain peaking and instability per datasheet AC test guidance.
What is the maximum allowable supply turn-on slew rate for EL4340IUZ?
The EL4340IUZ requires a maximum supply turn-on slew rate of 1 V/µs, enforced by an internal dV/dT-triggered clamp between V+ and V−. Exceeding this rate - such as during hot-plug events - can cause damaging currents through ESD protection diodes. Schottky clamps (e.g., MBR0550T) from V+/V− to ground are recommended per Figure 23 to limit inrush.
How does the HIZ state differ from the ENABLE power-down state on EL4340IUZ?
HIZ (active-high) places outputs in high-impedance (1.4 MΩ) while maintaining full bias and supply current - enabling safe bus sharing. ENABLE (active-low) disables amplifier circuitry, reducing supply current to ≤4.2 mA/ch but leaving outputs vulnerable to back-driving and large capacitance (~15 pF). Datasheet explicitly warns against using ENABLE as a high-Z substitute.
Are the NIC pins on EL4340IUZ required to be grounded?
Yes - all NIC (No Internal Connection) pins on EL4340IUZ (pins 2, 4, 8, 13, 15, 24) must be tied to ground per datasheet Page 3 Pin Descriptions and Page 9 Application Information. Leaving them floating increases crosstalk and degrades channel isolation; grounding minimizes parasitic coupling between adjacent video channels in the QSOP-24 layout.
EL4340IUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- 2:1 Multiplexer-Amplifier
- Output Type:
- -
- Number of Circuits:
- 3
- -3db Bandwidth:
- 500 MHz
- Slew Rate:
- 870V/µs
- Current - Supply:
- 30 mA
- Current - Output / Channel:
- 135 mA
- Voltage - Supply, Single/Dual (±):
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-QSOP
EL4340IUZ FAQ
1.How can I place an order for EL4340IUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for EL4340IUZ 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 EL4340IUZ reliable?
The price and inventory of EL4340IUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EL4340IUZ is usually 5 days.
3.What payment methods are accepted for EL4340IUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EL4340IUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EL4340IUZ?
EL4340IUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EL4340IUZ 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 EL4340IUZ?
For technical support, including EL4340IUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EL4340IUZ requirements.
6.How does Aetrix verify that EL4340IUZ is sourced from the original manufacturer or authorized distributors?
All EL4340IUZ 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 EL4340IUZ meets industry standards.
7.What is the process for return or replacement of EL4340IUZ?
All EL4340IUZ units undergo pre-shipment inspection (PSI). If there is an issue with EL4340IUZ, 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 EL4340IUZ part is unused and in its original packaging.
Return procedure for EL4340IUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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