Analog Devices Inc. AD21489WBCPZ302

Overview

AD21489WBCPZ302 from Analog Devices is a 32-bit/40-bit floating-point SHARC® DSP optimized for high-performance audio processing, operating at up to 450 MHz with 5 Mbits on-chip SRAM and 4 Mbits mask-ROM. It integrates eight serial ports (SPORT), S/PDIF transceiver, four asynchronous sample rate converters (ASRC), digital applications interface (DAI), and precision clock generators (PCG) for multichannel audio systems in automotive infotainment and professional audio equipment.

For engineers reviewing the AD21489WBCPZ302 datasheet, AD21489WBCPZ302 pinout, AD21489WBCPZ302 application, or AD21489WBCPZ302 equivalent, this page delivers verified core architecture details, validated peripheral capabilities, confirmed memory mapping, real-world timing benchmarks (e.g., 20.44 μs 1024-point FFT at 450 MHz), and precise package-specific I/O constraints for LFCSP_VQ 88-lead implementation.

Technical Context

The AD21489WBCPZ302 implements a dual-processing-element SIMD core (PEx and PEy), enabling parallel execution of identical instructions on independent data streams - critical for real-time FIR filtering (1.1 ns/tap) and biquad IIR processing (4.43 ns/biquad). Its enhanced Harvard architecture supports simultaneous 4×32-bit data fetches and one 48-bit instruction per cycle via PM/DM buses and instruction cache.

Peripherals are partitioned into two clock domains: core domain (CCLK) hosts computational units and on-chip memory, while I/O processor domain (PCLK) manages DAI, DPI, S/PDIF, ASRC, and external port interfaces. The device uses VISA support for 16-/32-bit compressed instructions, reducing code footprint without sacrificing performance in memory-constrained embedded audio designs.

Key Specifications

Pinout & Package

AD21489WBCPZ302 is housed in an 88-lead LFCSP_VQ (Lead Frame Chip Scale Package, Very Thin Quad) with exposed thermal pad (EPAD), measuring 10 mm × 10 mm × 0.8 mm. This RoHS-compliant, moisture-sensitive level 3 package provides low-inductance grounding and efficient heat dissipation for sustained 450 MHz operation in automotive environments.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-performance audio DSP applications.

Compared with AD21486WBSWZ4 and AD21489WBSWZ4, AD21489WBCPZ302 uniquely combines AEC-Q100 Grade 2 qualification, factory-loaded Dolby/DTS ROM, and compact 88-lead LFCSP - making it the only option for space-constrained, safety-certified automotive audio nodes requiring zero-footprint codec licensing.

Availability

AD21489WBCPZ302 is available at Aetrix Electronics and suitable for automotive infotainment, professional audio mixing, and high-end home theater applications requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.

Supply support for AD21489WBCPZ302 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 technology, headquartered in Wilmington, MA, with design centers worldwide and over 50 years of signal processing innovation.

The AD21489WBCPZ302 belongs to the SHARC® family - a line of SIMD-capable floating-point DSPs engineered specifically for deterministic, low-latency audio and industrial signal processing where computational density and peripheral integration are critical.

FAQ

What is the maximum operating frequency of the AD21489WBCPZ302?

The AD21489WBCPZ302 operates at up to 450 MHz, delivering 2.7 GFLOPS peak performance. This frequency is guaranteed across the full AEC-Q100 Grade 2 temperature range (−40°C to +105°C ambient) and requires strict 1.1 V core supply regulation (±3%). All timing benchmarks - including 20.44 μs for 1024-point complex FFT - are measured at this speed.

Does the AD21489WBCPZ302 include factory-programmed audio codecs?

Yes, the AD21489WBCPZ302 includes 4 Mbits of mask-programmed ROM containing certified Dolby® and DTS® multichannel audio decoding and post-processing algorithms. This eliminates the need for external flash memory and licensing negotiations, and is confirmed in Table 2 of the ADSP-2148x datasheet Rev. I.

Which package does the AD21489WBCPZ302 use, and what are its thermal characteristics?

The AD21489WBCPZ302 uses an 88-lead LFCSP_VQ package (10 mm × 10 mm, 0.5 mm pitch) with integrated thermal diode. Its θ_JA is 26.5°C/W and θ_JC is 3.2°C/W, enabling reliable operation at 450 MHz in automotive head units without forced air cooling.

Can the AD21489WBCPZ302 interface directly with SDRAM?

No - the AD21489WBCPZ302 in the 88-lead LFCSP package does not include an SDRAM controller. As stated in Table 2 and clarified in the General Description (Page 3), SDRAM interface capability is excluded from all 88-lead variants; only 100-lead and 176-lead packages support it.

What debug and emulation interfaces does the AD21489WBCPZ302 support?

The AD21489WBCPZ302 supports JTAG-based emulation via IEEE 1149.1-compliant test access port, enabling full-speed debugging, breakpoint insertion, and boundary scan. When ROM security is enabled, JTAG access requires scanning a unique 64-bit customer key - preventing unauthorized firmware extraction or modification.