Analog Devices Inc. ADV7281AWBCPZ-M

Overview

ADV7281AWBCPZ-M from Analog Devices is a 10-bit, 4× oversampled SDTV video decoder IC with differential analog inputs, MIPI CSI-2 Tx output, and automotive-grade operation (−40°C to +105°C). It supports worldwide NTSC/PAL/SECAM autodetection, processes CVBS/Y/C/YPrPb inputs, and delivers YCrCb 4:2:2 data for automotive infotainment and ADAS camera systems.

For engineers reviewing the ADV7281AWBCPZ-M datasheet, ADV7281AWBCPZ-M pinout, ADV7281AWBCPZ-M application, or ADV7281AWBCPZ-M equivalent, key selection factors include MIPI CSI-2 compliance, differential CVBS input support, STB diagnostics, 5-line adaptive 2D comb filtering, and −40°C to +105°C qualification - all critical for robust automotive video capture in harsh EMI environments.

Technical Context

The ADV7281AWBCPZ-M integrates a single 10-bit ADC with 4× oversampling per channel across CVBS, S-Video (Y/C), and YPrPb modes, enabling precise digitization of composite, component, and interlaced analog video. Its analog front end includes on-chip anti-aliasing filters, differential-to-single-ended conversion, and clamp circuitry supporting up to 4 V common-mode input range.

The standard definition processor (SDP) performs automatic PAL/NTSC/SECAM detection and decoding, implements ADLLT™ line-length tracking for VCR/tuner sources, and applies CTI enhancement and ACE contrast adaptation. Output is delivered via a MIPI D-PHY v1.00.00–compliant CSI-2 transmitter with high-speed differential data/clock lanes and LP-state signaling.

Key Specifications

Pinout & Package

ADV7281AWBCPZ-M is housed in a 32-lead, 5 mm × 5 mm, RoHS-compliant LFCSP package with exposed thermal pad. Pin functions are validated per Analog Devices' official datasheet Rev. A (Page 10).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SDTV video decoder applications.

Compared with ADV7281AWBCPZ-M, ADV7181CWBSTZ trades MIPI integration for parallel flexibility and larger footprint, while MAX9526ETX+T offers basic SD decoding at lower cost but omits automotive-specific features like STB diagnostics, extended temperature rating, and adaptive line-length tracking - making ADV7281AWBCPZ-M the only choice for ASIL-relevant vision subsystems.

Availability

ADV7281AWBCPZ-M is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera processing, and in-vehicle DVR applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100–aligned sourcing.

Supply support for ADV7281AWBCPZ-M 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, Inc. is a global leader in high-performance analog, mixed-signal, and DSP technologies, serving industrial, automotive, communications, and healthcare markets with precision signal processing solutions.

The ADV7281AWBCPZ-M belongs to Analog Devices' automotive-qualified video decoder product line, designed specifically to replace legacy analog video interfaces in next-generation ADAS and infotainment systems with MIPI-native connectivity.

FAQ

What video standards does the ADV7281AWBCPZ-M support?

The ADV7281AWBCPZ-M supports full global SDTV standards including NTSC J/M/4.43, PAL B/D/G/H/I/M/N/Nc/60, and SECAM B/D/G/K/L. It performs automatic detection and seamless switching between these formats on CVBS, S-Video (Y/C), and YPrPb inputs - all confirmed in the Rev. A datasheet Section "Standard Definition Processor (SDP)".

Does the ADV7281AWBCPZ-M require an external crystal oscillator?

Yes, the ADV7281AWBCPZ-M requires a 28.63636 MHz fundamental-mode crystal connected between XTALP and XTALN pins. Alternatively, a 1.8 V CMOS clock source at the same frequency may be fed into XTALN with XTALP left unconnected - both configurations are explicitly defined in the "Crystal Resonator Design" section of the datasheet.

How does the ADV7281AWBCPZ-M handle differential CVBS inputs?

The ADV7281AWBCPZ-M integrates a differential-to-single-ended converter and clamp circuitry that accepts fully differential, pseudo-differential, or single-ended CVBS without external amplifiers. It supports up to 4 V common-mode input range using external resistor dividers - verified in the "Analog Front End (AFE)" and "Input Networks" sections of the datasheet.

What is the purpose of the DIAG1 and DIAG2 pins on the ADV7281AWBCPZ-M?

DIAG1 and DIAG2 are Short-to-Battery (STB) diagnostic sense inputs that monitor two analog video channels for open-circuit, short-to-battery, and short-to-ground faults. This capability is explicitly documented in the "Short to Battery Protection (STB)" section and is critical for automotive functional safety compliance.

Can the ADV7281AWBCPZ-M operate without an external reference voltage?

Yes, the ADV7281AWBCPZ-M generates its own internal reference voltages: VREFP (positive) and VREFN (negative) are provided as dedicated output pins and must be decoupled with 0.1 µF capacitors. These references stabilize the ADC and analog front end - confirmed in the "Pin Configuration" table and "VREFN and VREFP Pins" layout guidance.