Analog Devices Inc. ADV3002BSTZ-RL

Overview

ADV3002BSTZ-RL from Analog Devices is a 4:1 HDMI/DVI switch IC with integrated TMDS equalization, DDC/CEC buffering, and EDID replication - designed for high-fidelity video routing in consumer A/V systems. It supports data rates up to 2.25 Gbps, pixel clocks up to 225 MHz, and provides ±8 kV ESD protection on HDMI inputs. Its role is to consolidate four HDMI sources into one sink while maintaining signal integrity over long cables (e.g., >20 m of 24 AWG at 2.25 Gbps).

For engineers reviewing the ADV3002BSTZ-RL datasheet, ADV3002BSTZ-RL pinout, ADV3002BSTZ-RL application, or ADV3002BSTZ-RL equivalent, key selection criteria include TMDS equalization capability, EDID replication architecture, hot-plug detect pulse control, and compatibility with HDMI 1.4a and DVI 1.0 standards in space-constrained LQFP layouts.

Technical Context

The ADV3002BSTZ-RL implements a fully buffered 4-input/1-output TMDS switching core with programmable on-chip 50 Ω input terminations and selectable 4 dB or 16 dB high-frequency equalization. Its loss-of-signal (LOS) detection operates down to 5 MHz and triggers on clock amplitude thresholds as low as 35 mV at 225 MHz.

It integrates bidirectional DDC buffers compliant with I²C timing, CEC line buffering with 26 kΩ integrated pull-ups, and a 5 V combiner that powers EDID/CEC circuitry even when local system power is off. Channel selection is controlled via parallel SEL[1:0] or I²C interface, with reset and output enable (TX_EN) pins supporting system-level power management.

Key Specifications

Pinout & Package

ADV3002BSTZ-RL is housed in an 80-lead, 14 mm × 14 mm RoHS-compliant LQFP package with exposed thermal pad. Pin functions are validated per Analog Devices Rev. B datasheet Figure 2 and Table 6.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar HDMI/DVI switching applications.

Compared with TI TPD12S016RGER and PI3HDX412BDZDEX, the ADV3002BSTZ-RL uniquely integrates equalization, EDID replication, CEC buffering, and 5 V combiner in one LQFP - reducing total component count by ≥7 devices and enabling true single-chip HDMI multiplexing for 1080p60 systems.

Availability

ADV3002BSTZ-RL is available at Aetrix Electronics and suitable for advanced television sets, projectors, A/V receivers, and set-top boxes requiring stable component supply, long-cable HDMI signal integrity, and EDID consolidation.

Supply support for ADV3002BSTZ-RL 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets since 1965.

The ADV3002BSTZ-RL belongs to Analog Devices' high-speed interface product line, engineered specifically for HDMI/DVI signal routing in consumer A/V equipment where signal fidelity, integration density, and standards compliance are critical.

FAQ

What HDMI and DVI standards does the ADV3002BSTZ-RL support?

The ADV3002BSTZ-RL is HDMI 1.4a receive and transmit compliant and DVI 1.0 compliant. It supports HDCP 1.4 encryption handshaking via its buffered DDC channels and meets timing requirements for TMDS data rates up to 2.25 Gbps and pixel clocks up to 225 MHz - covering all resolutions from VGA to 1080p60 RGB 8-bit. The ADV3002BSTZ-RL does not support HDMI 2.0 or higher features such as 4K or HDR metadata transport.

How does the EDID replication function work in the ADV3002BSTZ-RL?

The ADV3002BSTZ-RL includes an on-chip SRAM that stores EDID data loaded from a single external EEPROM (via EDID_SCL/EDID_SDA pins) or from a system microcontroller. Once loaded, this EDID block is simultaneously accessible to all four HDMI input ports - eliminating the need for separate EEPROMs per port. The ADV3002BSTZ-RL asserts EDID_ENABLE to activate replication, and the common DDC bus (DDC_SDA_COM/DDC_SCL_COM) allows the sink to read EDID regardless of the selected source.

Can the ADV3002BSTZ-RL operate without external termination resistors on the TMDS outputs?

No - the ADV3002BSTZ-RL requires output termination. Internal 50 Ω terminations are enabled by default after reset, but if external terminations are also present (e.g., at the sink), the output current level must be reduced to 20 mA via the TX_OCL register bit. If only external terminations are used, internal termination must be disabled and output current set to 10 mA. Leaving outputs unterminated risks signal reflection, eye closure, and HDMI link failure - the ADV3002BSTZ-RL will not drive properly without proper termination.

What is the purpose of the 5 V combiner in the ADV3002BSTZ-RL?

The 5 V combiner in the ADV3002BSTZ-RL monitors all four P5V_A–P5V_D inputs and supplies regulated 5 V (AMUXVCC) to the EDID replicator and CEC buffer - even when the main system power is off. This ensures that EDID remains readable and CEC commands can be received and forwarded during standby mode, enabling true "always-on" HDMI features like CEC wake-up and sink-initiated EDID reads. The ADV3002BSTZ-RL uses this to maintain interoperability with TVs and displays that expect continuous EDID/CEC availability.

Does the ADV3002BSTZ-RL support automatic input termination control?

Yes - the ADV3002BSTZ-RL supports both manual and automatic input termination control. When configured for automatic mode, the device detects cable presence and signal integrity on each input and enables/disables the on-chip 50 Ω terminations accordingly. This is managed internally and requires no software intervention. In manual mode, termination state is set via the TMDS input termination control register. Both modes ensure optimal impedance matching for varying cable lengths and source output characteristics - a key feature distinguishing the ADV3002BSTZ-RL from basic passive switches.