My Inquiry
My Account
Analog Devices Inc. AD21488WBCPZ402
- Part No.:
- AD21488WBCPZ402
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 88-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD21488WBCPZ402.pdf
- Description:
- SHARC PROCESSOR, 400MHZ
- Quantity:
- Payment:
- Shipping:
Inventory:1,834
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD21488WBCPZ402 from Analog Devices is a 32-bit/40-bit floating-point SHARC® DSP optimized for high-performance automotive audio processing, operating at up to 400 MHz with 3 Mbits on-chip SRAM and 4 Mbits mask-programmed ROM containing Dolby®/DTS® audio decoders. It integrates eight serial ports, S/PDIF transceiver, four asynchronous sample rate converters (ASRC), digital applications interface (DAI), and AEC-Q100 qualification for under-hood deployment.
For engineers reviewing the AD21488WBCPZ402 datasheet, AD21488WBCPZ402 pinout, AD21488WBCPZ402 application, or AD21488WBCPZ402 equivalent, this page delivers verified technical context, validated pin functions for the 88-lead LFCSP_VQ package, real-world audio system integration guidance, and two confirmed alternative SHARC processors with documented functional and packaging differences.
Technical Context
The AD21488WBCPZ402 implements a dual-processing-element SIMD core (PEx/PEy) enabling parallel 32-bit/40-bit floating-point execution, with VISA support for 16-/32-bit compressed instructions to reduce code footprint. Its memory architecture provides independent 64-bit PM/DM buses and on-chip instruction cache for single-cycle fetch of one instruction and four operands.
Peripheral subsystem includes DAI with four precision clock generators (PCG), S/PDIF Tx/Rx, IDP/PDAP, and DPI with UART, TWI, SPI, PWM, and timers - all synchronized to a dedicated peripheral clock domain. The device lacks external port (SDRAM/AMI) support in its 88-lead LFCSP_VQ package, per Pin Function Descriptions and Table 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Dual 32-bit/40-bit floating-point SIMD processor (PEx + PEy) delivering 2.16 GFLOPS at 400 MHz |
| Operating Frequency | 400 MHz maximum - enables sub-20.44 μs execution of 1024-point complex FFT |
| On-Chip Memory | 3 Mbits SRAM (configurable as 160k × 32-bit or mixed word sizes) + 4 Mbits ROM with factory-loaded Dolby/DTS audio codecs |
| Audio Peripherals | 8 SPORTs, S/PDIF transceiver, 4 ASRCs (–128 dB THD+N), DAI with PCG, IDP/PDAP, and DPI with UART/TWI/SPI |
| Package & Thermal | 88-lead LFCSP_VQ (12 mm × 12 mm, 0.5 mm pitch); integrated thermal diode for junction temperature monitoring |
| Automotive Qualification | AEC-Q100 Grade 2 (–40°C to +105°C ambient) - qualified for infotainment head units and ADAS audio preprocessing |
| Instruction Set | 48-bit legacy SHARC ISA plus Variable Instruction Set Architecture (VISA) supporting 16-/32-bit compressed opcodes for reduced memory footprint |
Pinout & Package
AD21488WBCPZ402 is housed in an 88-lead LFCSP_VQ (Lead Frame Chip Scale Package, Very Thin Quad) measuring 12 mm × 12 mm with 0.5 mm pitch and exposed thermal pad. This package omits external port pins (SDRAM/AMI), consistent with Table 2 and Pin Function Descriptions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Core Clock Input | Accepts 1–50 MHz crystal or CMOS clock; feeds PLL to generate 400 MHz core clock (CCLK) |
| FLAG0–FLAG7 | Programmable I/O Flags | Multi-function pins usable as GPIO, interrupt inputs, or timer outputs; FLAG3 configured as core timer expiry signal |
| SPORT0–SPORT7 | Serial Port Interfaces | Eight full-duplex synchronous serial ports supporting I²S, TDM, and AC97 protocols; each with independent DMA channels |
| DAI_SPORTx / DPI_SPORTx | DAI/DPI Signal Routing Terminals | Configurable interconnect points for routing audio data between peripherals (e.g., S/PDIF → ASRC → SPORT) without CPU intervention |
| VDD_IO / VDD_CORE / VDD_ANA | Power Supply Rails | Separate 3.3 V I/O, 1.2 V core, and 3.3 V analog supplies - require independent filtering and sequencing per Power Supply Recommendations |
| THERM | Thermal Diode Output | Analog voltage output proportional to die temperature; used with external ADC for real-time thermal management in automotive environments |
Key Features
| Feature | Design Value |
|---|---|
| Dolby/DTS Audio Decoding | ROM-hosted multichannel audio decoder and post-processor algorithms enable turnkey implementation of surround sound without external codec ICs |
| Asynchronous Sample Rate Conversion | Four independent ASRC blocks with –128 dB THD+N performance allow seamless mixing of audio streams at different sample rates (e.g., 44.1 kHz Bluetooth + 48 kHz USB) |
| Digital Applications Interface (DAI) | Hardware-configurable signal routing unit eliminates CPU overhead for inter-peripheral data flow - e.g., direct S/PDIF Rx → ASRC → SPORT Tx path |
| AEC-Q100 Automotive Qualification | Validated for Grade 2 operation (–40°C to +105°C), including HTOL, TC, and ESD testing - supports deployment in engine bay-adjacent audio amplifiers |
| VISA Code Compression | Reduces program memory footprint by up to 40% vs. legacy ISA; enables faster boot from external flash and lower bandwidth demand on instruction fetch bus |
Applications
| Automotive Infotainment Head Unit | High-End Automotive Amplifier |
|---|---|
|
Use Scenario: Central audio processor in vehicle head unit handling Bluetooth streaming, USB playback, navigation voice prompts, and rear-seat entertainment. IC Role / Device Role / Timing Role: Primary SHARC DSP executing Dolby Digital decoding, multi-zone audio mixing, and real-time equalization using on-chip FIR/IIR accelerators. Use Value: Eliminates need for external audio codec and reduces BOM count by integrating ASRC, S/PDIF, and 8 SPORTs - simplifies PCB layout and meets AEC-Q100 requirements out-of-box. |
Use Scenario: Digital signal processor in Class-D amplifier modules for premium vehicles, performing speaker protection, active crossover, and cabin acoustic correction. IC Role / Device Role / Timing Role: Real-time audio preprocessing engine synchronizing multiple input sources (CAN bus metadata, analog line-in, digital optical) via DAI routing and ASRC. Use Value: On-chip thermal diode enables closed-loop thermal derating; 400 MHz SIMD core executes 24-band parametric EQ and FIR-based room correction within <5 ms latency. |
| ADAS Audio Alert System | Automotive Telematics Gateway Audio |
|
Use Scenario: Safety-critical audio alert generator in ADAS systems, producing synthesized warning tones (e.g., blind-spot detection, forward collision) with guaranteed low-latency response. IC Role / Device Role / Timing Role: Deterministic real-time DSP running time-triggered tone synthesis and volume ramping algorithms, isolated from main infotainment OS via JTAG debug lock. Use Value: ROM-based security prevents unauthorized firmware modification; watchdog timer (enabled in 176-lead variants) replaced by software-managed timeout in this 88-lead configuration. |
Use Scenario: Audio subsystem in telematics control unit (TCU), managing voice call processing, emergency eCall audio path, and OTA update verification. IC Role / Device Role / Timing Role: Secure audio coprocessor handling encrypted voice stream decryption (AES-128), echo cancellation, and S/PDIF output to cellular modem baseband. Use Value: JTAG port locked behind 64-bit ROM key prevents runtime debugging access; internal ROM stores cryptographic keys and secure boot loader - meeting UNECE R155 compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SHARC DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD21489WBSWZ4A | 450 MHz core, 5 Mbits SRAM, 176-lead LQFP_EP package with SDRAM controller and watchdog timer | Supports external memory expansion and deterministic watchdog reset - required for systems needing >3 Mbits working memory or fail-safe reboot capability | Select when higher compute throughput, larger on-chip memory, or external SDRAM interfacing is mandatory; not pin-compatible due to package and pinout differences |
| AD21486WBSWZ4A | 400 MHz core, 5 Mbits SRAM, 100-lead LQFP_EP package; no SDRAM controller, no ROM audio decoders | Targeted at cost-sensitive industrial audio where custom firmware replaces Dolby/DTS and external memory is unnecessary | Choose for non-automotive applications requiring more SRAM than AD21488WBCPZ402 but without AEC-Q100 or ROM-based audio IP; requires different PCB layout |
Compared with AD21488WBCPZ402, AD21489WBSWZ4A offers higher performance and memory but requires SDRAM layout and larger footprint, while AD21486WBSWZ4A trades ROM audio IP and automotive qualification for greater SRAM and lower package cost - neither is pin-compatible, and both demand board-level redesign.
Availability
AD21488WBCPZ402 is available at Aetrix Electronics and suitable for automotive infotainment head units, high-end Class-D amplifier modules, and ADAS audio alert systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for AD21488WBCPZ402 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and automotive systems.
The ADSP-2148x SHARC family - including AD21488WBCPZ402 - was designed specifically for demanding real-time audio signal processing in automotive and professional audio equipment, emphasizing low-latency peripheral routing, ROM-based audio IP, and AEC-Q100 reliability.
FAQ
What is the maximum operating frequency of the AD21488WBCPZ402?
The AD21488WBCPZ402 operates at a maximum frequency of 400 MHz, as specified in Table 2 of the ADSP-2148x datasheet Rev. I. This clock speed enables benchmark performance of 20.44 μs for a 1024-point complex FFT and 1.25 ns per FIR tap in SIMD mode. The device does not support the 450 MHz option found in AD21489WBSWZ4A variants.
Does the AD21488WBCPZ402 include Dolby or DTS audio decoders in ROM?
Yes, the AD21488WBCPZ402 includes factory-programmed ROM containing multichannel audio decoding and post-processing algorithms from Dolby Labs and DTS, as confirmed in Table 2 and General Description section. This ROM is mask-programmed and cannot be modified in the field - it enables immediate deployment of surround sound without external codec ICs.
Is the AD21488WBCPZ402 pin-compatible with other ADSP-2148x processors?
No, the AD21488WBCPZ402 is not pin-compatible with other ADSP-2148x processors. It uses an 88-lead LFCSP_VQ package, whereas AD21489WBSWZ4A uses 176-lead LQFP_EP and AD21486WBSWZ4A uses 100-lead LQFP_EP. Pin Function Descriptions confirm distinct pin assignments and missing external port signals in the 88-lead variant.
What audio interfaces are supported by the AD21488WBCPZ402?
The AD21488WBCPZ402 supports eight synchronous serial ports (SPORT0–SPORT7), S/PDIF transceiver, four asynchronous sample rate converters (ASRC), digital applications interface (DAI) with precision clock generators, and digital peripheral interface (DPI) with UART, TWI, and SPI. It does not support external SDRAM or AMI due to its 88-lead LFCSP_VQ package constraints.
How is automotive qualification implemented in the AD21488WBCPZ402?
The AD21488WBCPZ402 is AEC-Q100 qualified for Grade 2 operation (–40°C to +105°C ambient), with validation across HTOL, temperature cycling, and ESD tests. It includes an integrated thermal diode (THERM pin) for real-time junction monitoring and ROM-based security preventing unauthorized firmware access - features essential for automotive infotainment and ADAS audio subsystems.
AD21488WBCPZ402 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SHARC®
- Package/Case:
- 88-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Floating Point
- Interface:
- EBI/EMI, DAI, I2C, SPI, SPORT, UART/USART
- Clock Rate:
- 400MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 384kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 88-LFCSP-VQ (12x12)
AD21488WBCPZ402 FAQ
1.How can I place an order for AD21488WBCPZ402 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD21488WBCPZ402 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 AD21488WBCPZ402 reliable?
The price and inventory of AD21488WBCPZ402 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD21488WBCPZ402 is usually 5 days.
3.What payment methods are accepted for AD21488WBCPZ402?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD21488WBCPZ402 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD21488WBCPZ402?
AD21488WBCPZ402 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD21488WBCPZ402 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 AD21488WBCPZ402?
For technical support, including AD21488WBCPZ402 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD21488WBCPZ402 requirements.
6.How does Aetrix verify that AD21488WBCPZ402 is sourced from the original manufacturer or authorized distributors?
All AD21488WBCPZ402 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 AD21488WBCPZ402 meets industry standards.
7.What is the process for return or replacement of AD21488WBCPZ402?
All AD21488WBCPZ402 units undergo pre-shipment inspection (PSI). If there is an issue with AD21488WBCPZ402, 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 AD21488WBCPZ402 part is unused and in its original packaging.
Return procedure for AD21488WBCPZ402:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD21488WBCPZ402 Tags
-
TMS320C5535AZAY10
Texas Instruments
-
TMS320VC5501PGF300
Texas Instruments
-
ADSP-BF592KCPZ
Analog Devices Inc.
-
ADAU1463WBCPZ150
Analog Devices Inc.
-
TMS320VC5402PGE100
Texas Instruments
-
ADAU1701JSTZ-RL
Analog Devices Inc.
-
ADAU1701JSTZ
Analog Devices Inc.
-
TMS320VC5502PGF300
Texas Instruments
-
ADAU1462WBCPZ300RL
Analog Devices Inc.
-
ADAU1452KCPZRL
Analog Devices Inc.
-
ADAU1452WBCPZ-RL
Analog Devices Inc.
-
TMS320C6747DZKB3
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
