ADV3003ACPZ - 4-Channel TMDS Buffer | Analog Devices
MPN: ADV3003ACPZ ✓ AktifADV3003ACPZ Genel Bakış
A TMDS buffer is an interface IC that reconstructs a differential digital signal after transmission-line losses have distorted its amplitude and rise time. It belongs to the HDMI/DVI interface-buffer hierarchy, where high-speed differential signaling requires controlled termination, equalization, and output pre-emphasis to maintain reliable data recovery over longer PCB or cable paths.
The ADV3003 provides four independent channels of equalization and pre-emphasis. Its 50 ohm input termination supports direct coupling of TMDS signals, while the matching 50 ohm output termination helps suppress reflections and recover full-swing output signals. The TX_EN control pin can simultaneously disable the transmitter and the on-chip input terminations, allowing a system to reduce power dissipation when the link is inactive.
The architecture is tailored to HDMI and DVI signal paths in which data, clock, and auxiliary channels may traverse controlled-impedance interconnects. Equalization compensates for frequency-dependent loss, while pre-emphasis increases the relative amplitude of transitions so that the receiving device can distinguish them after attenuation and reflection. Together, these functions improve signal integrity without changing the underlying TMDS data format.
Typical uses include HDMI and DVI repeater or retimer boards, video-processing equipment, display adapters, digital video monitors, KVM switches, and other systems that need to restore a degraded high-speed differential signal before passing it to another connector or processor. The four-channel organization also allows one device to handle multiple related TMDS lanes when the interface requires parallel signal conditioning.
PCB implementation should preserve controlled-impedance routing, short differential paths, and a continuous return-plane beneath the traces. Place termination and decoupling structures close to the device, and verify the manufacturer's recommended component values and layout directly in the ADV3003 datasheet. The operating range and low-voltage supply requirement make it most suitable for modern HDMI and DVI interface electronics.
Drop-in alternatifler için ADV3003ACPZ — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
ADV3003ACPZ-R7
✅ Yerleştirme📋 Katalogda Olmayan Referans Alternatifi
ADV3003ACPZ Özellikler
| Channel Count | 4 channels |
| Signal Type | Transition-minimized differential signaling (TMDS) |
| Input Termination | 50 ohm |
| Output Termination | 50 ohm |
| Supply Voltage Range | 3 V to 3.6 V |
| İşletim Sıcaklığı Aralığı | -40 °C to 85 °C |
| Input Signal Conditioning | Equalized inputs |
| Output Signal Conditioning | Pre-emphasized outputs |
| Output Swing | Full-swing output signal recovery |
| Disable Control | TX_EN simultaneously disables transmitter and on-chip input terminations |
| Target Interfaces | HDMI and DVI |
| Package Type | 40-lead LFCSP-VQ |
| Package Dimensions | 6 mm × 6 mm |
| Pin Sayısı | 40 pins |
| Montaj Türü | Surface mount |
ADV3003ACPZ 6 mm × 6 mm Pin Yapısı Kılavuzu
ADV3003ACPZ (6 mm × 6 mm paket) için pin yapısı. Pin numaralandırma, işlevleri ve bağlantı şemaları üretici veri kitapçığında tanımlanmıştır. Doğru ayak ve soldurma kılavuzları için onu referans alın.
Ayrıntılı pin çıkış verisi mevcut değil: ADV3003ACPZ.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
ADV3003ACPZ için uygundur 6 uygulamas: HDMI and DVI Signal-Conditioning Boards, Digital Video Adapters, Display Monitors, KVM and Video Switching Equipment, Video Processing Equipment, HDMI/DVI Port Extenders.
HDMI and DVI Signal-Conditioning Boards
The ADV3003ACPZ fits interface boards that need to restore attenuated or reflection-prone HDMI and DVI differential signals. Its 4-channel architecture applies equalization to the incoming lanes and pre-emphasis to the outgoing lanes, while 50 ohm input and output terminations help maintain controlled impedance at the device boundaries. The result is full-swing output signal recovery with improved edge recognition. Use the manufacturer’s pin assignments and reference layout to connect data, clock, and auxiliary signals while preserving continuous return paths beneath every differential pair.
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Digital Video Adapters
A digital video adapter can place the ADV3003ACPZ between a source connector and a video processor when the internal trace geometry introduces attenuation or reflections. Equalization compensates for the high-frequency loss associated with controlled-impedance PCB routing, while output pre-emphasis makes transitions easier for the receiving circuit to identify. With a 3 V to 3.6 V operating range and a compact 6 mm by 6 mm LFCSP-VQ package, the device supports dense adapter designs. The TX_EN function also allows the transmitter and input terminations to be disabled during an inactive state.
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Display Monitors
The ADV3003ACPZ is applicable in display-monitor electronics that receive TMDS signals over a board-level cable or connector path. Four channels provide parallel equalization and output conditioning for compatible data or clock lanes, while the fixed 50 ohm terminations reduce impedance discontinuities at the buffer. Full-swing recovery helps downstream circuitry identify transitions after losses in the interconnect. Layout should minimize trace length, match differential impedance, and provide an uninterrupted reference plane so the equalization and pre-emphasis operate on controlled transitions.
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KVM and Video Switching Equipment
Video-switching and KVM equipment can use the ADV3003ACPZ to condition selected TMDS paths before signals reach the next processing stage. Its equalized inputs address losses accumulated through switches, connectors, and internal routing, while pre-emphasized outputs improve transition visibility at the receiving endpoint. The 4-channel arrangement supports grouped signal conditioning, and TX_EN provides a coordinated way to disable both the transmitter and input terminations. Control logic should coordinate this shutdown function with hot-plug detection and any source-side link management.
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Video Processing Equipment
The ADV3003ACPZ supports video-processing equipment that receives differential digital video from an external source and distributes conditioned signals to internal converters or receivers. The 3 V to 3.6 V supply range aligns with common low-voltage interface rails, while the compact 40-lead LFCSP-VQ footprint supports placement near connectors and processors. Equalization, pre-emphasis, and 50 ohm terminations work together to limit the effect of loss and reflection. The exposed-pad land pattern and thermal vias must follow the official manufacturer drawing for reliable assembly.
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HDMI/DVI Port Extenders
In an HDMI or DVI port extender, the ADV3003ACPZ can regenerate signal integrity after a connector, cable, or long PCB interconnect has introduced transition degradation. Input equalization restores attenuated high-frequency content, and output pre-emphasis strengthens transitions before the next link segment. Its 4-channel structure can condition compatible parallel TMDS lanes, while the 50 ohm terminations help suppress reflections. Use controlled-impedance routing, short launch and receive paths, and a solid reference plane to ensure that the recovered full-swing signal remains reliable in the next stage.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: ADV3003ACPZ — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün | ADV3003ACPZ-R7 |
|---|---|---|
| Package | 40-lead LFCSP-VQ (6 mm × 6 mm) | 40-lead LFCSP-VQ (6 mm × 6 mm) |
| Brand | Analog Devices | Analog Devices |
| Channel Count | 4 channels | 4 channels |
| Signal Type | TMDS | TMDS |
| Supply Voltage Range | 3 V to 3.6 V | 3 V to 3.6 V |
| Operating Temperature Range | -40 °C to 85 °C | -40 °C to 85 °C |
| Input Termination | 50 ohm | 50 ohm |
| Output Termination | 50 ohm | 50 ohm |
| Signal Conditioning | Equalized inputs and pre-emphasized outputs | Equalized inputs and pre-emphasized outputs |
| Disable Control | TX_EN disables transmitter and on-chip input terminations | TX_EN disables transmitter and on-chip input terminations |
| Target Application | HDMI and DVI | HDMI and DVI |
| Ordering Suffix | ACPZ | ACPZ-R7 |
Ana Farklılayıcılar
- Four-channel equalization and output conditioning in one device (karşılaştırma:ADV3003ACPZ-R7)
- Integrated 50 ohm input and output terminations (karşılaştırma:ADV3003ACPZ-R7)
- Coordinated TX_EN shutdown behavior (karşılaştırma:ADV3003ACPZ-R7)
Tasarım Notları
Route all TMDS pairs as controlled-impedance differential lines with a continuous reference plane beneath them. Keep the ADV3003ACPZ close to connector launches or the point where equalization is required, and minimize stubs and impedance discontinuities. Place decoupling and termination structures close to the associated pins. The manufacturer's package drawing and application layout should govern the exposed-pad land pattern, thermal vias, and exact high-speed component placement.
Validate the complete channel with the physical connector, cable, and receiving device rather than evaluating only the IC output. Equalization and pre-emphasis are intended to recover transitions affected by channel loss, but incorrect impedance, excessive stubs, or an interrupted return plane can negate that benefit. Measure eye height, jitter, and differential amplitude at the relevant system boundary, then confirm that TX_EN timing agrees with source detection and link-management behavior.
Operate the ADV3003ACPZ only within its 3 V to 3.6 V supply range and place supply decoupling close to the package pins. Coordinate TX_EN with the surrounding HDMI or DVI control logic because it disables both the transmitter and on-chip input terminations simultaneously. Incorrect shutdown sequencing can create impedance discontinuities on active links or interfere with source detection. Review absolute maximum ratings, supply sequencing, and exposed-pad recommendations in the official manufacturer datasheet before releasing the layout.
The 40-lead LFCSP-VQ uses an exposed thermal pad, so the PCB land pattern must include the manufacturer-specified solderable area and via arrangement. Use adequate copper connectivity under the device to support heat transfer while preserving clearances around signal and return paths. Do not infer the exposed-pad connection or thermal-via geometry from a generic LFCSP drawing; verify both against the official ADV3003 package documentation.
Uyumluluk Bilgisi
The exact compliance declarations for ADV3003ACPZ were not stated in the manufacturer or distributor records used for this page. AEC-Q100 is not applicable because the interface IC is not identified as an automotive-qualified product.
