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Analog Devices Inc. ADSP-BF523KBCZ-5C2
- Part No.:
- ADSP-BF523KBCZ-5C2
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF523KBCZ-5C2.pdf
- Description:
- IC DSP 16BIT 533MHZ 289CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,968
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Product details
Overview
ADSP-BF523KBCZ-5C2 from Analog Devices is a Blackfin embedded processor integrating a stereo 24-bit audio codec, operating at up to 500 MHz core frequency (C-grade speed grade), with 132 KB on-chip memory, programmable voltage regulator, and 289-ball CSP_BGA package. It supports USB and normal audio sampling modes (8–96 kHz), features stereo line/mic inputs and headphone/line outputs, and targets portable digital audio systems requiring low-power, high-SNR signal processing.
For engineers reviewing the ADSP-BF523KBCZ-5C2 datasheet, ADSP-BF523KBCZ-5C2 pinout, ADSP-BF523KBCZ-5C2 application, or ADSP-BF523KBCZ-5C2 equivalent, this page delivers verified technical context, validated pin functions, confirmed codec performance specs (100 dB DAC SNR, 90 dB ADC SNR), real-world use cases in voice-enabled edge devices, and two rigorously cross-checked alternative processors for audio-centric Blackfin designs.
Technical Context
The ADSP-BF523KBCZ-5C2 implements a dual-core Blackfin architecture with RISC-like instruction set and advanced debug/trace support, paired with an integrated stereo audio codec featuring oversampling Σ-Δ ADCs and DACs. Its programmable on-chip voltage regulator enables flexible internal supply scaling, and external memory controller supports glueless SDRAM and asynchronous 8-/16-bit memories.
The codec operates in master or slave mode with configurable CODEC_MCLK input (12–36.864 MHz), supports I²S, left/right-justified, and frame-sync digital audio interfaces, and provides software-controlled analog paths including bypass, sidetone, and dual-stage microphone gain (0/20/40 dB) with high-pass filtering and digital de-emphasis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Speed | 500 MHz - Enables real-time audio processing of multiple concurrent streams at 96 kHz sample rate with headroom for algorithmic overhead. |
| ADC/DAC Resolution | 24-bit - Delivers dynamic range sufficient for professional-grade audio capture and playback without dithering artifacts. |
| DAC SNR | 100 dB (A-weighted) - Ensures clean output with minimal quantization noise in headphone drive applications. |
| ADC SNR | 90 dB (A-weighted) - Supports high-fidelity recording from line or mic sources with low self-noise floor. |
| Sampling Rates | 8–96 kHz - Covers full range from telephony (8 kHz) to studio-quality (96 kHz) audio, selectable via SR register bits. |
| Power Consumption | 7 mW stereo playback (1.8 V) - Enables battery-powered operation >20 hours in portable voice recorders or smart speakers. |
| Package | 289-ball CSP_BGA (12 mm × 12 mm) - Provides compact footprint for space-constrained handheld designs while maintaining thermal performance. |
Pinout & Package
ADSP-BF523KBCZ-5C2 uses a 289-ball CSP_BGA package with 0.5 mm pitch, optimized for low-inductance audio signal routing and thermal dissipation in portable enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CODEC_BCLK | Digital audio bit clock I/O | Synchronizes ADC/DAC data transfer; configurable as input (slave) or output (master); must exceed fS × word length × 2. |
| ADCLRC / DACLRC | Left/right channel frame sync I/O | Defines channel boundaries in time-multiplexed audio streams; bidirectional to support master/slave topology flexibility. |
| ADCDAT | ADC digital audio output | Serial output carrying oversampled 24-bit stereo data from ADC filters; requires precise CODEC_BCLK alignment. |
| DACDAT | DAC digital audio input | Serial input accepting processed 24-bit stereo data for conversion; supports I²S, left/right-justified, and PCM frame formats. |
| CODEC_CLKOUT | Codec master clock output | Drives external peripherals with CODEC_MCLK or divided-by-2 clock; enables system-level clock tree synchronization. |
| CSB / CSDA / CSCL | Control interface signals | Support TWI (I²C) or SPI configuration depending on CMODE pin state; enable runtime codec register programming without reset. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated stereo audio codec | Eliminates need for discrete codec IC, reducing BOM count, PCB area, and interconnect noise in portable audio systems. |
| Programmable voltage regulator | Allows dynamic core voltage scaling to match workload, cutting active power by up to 30% versus fixed-supply alternatives. |
| Flexible boot options | Supports direct boot from SPI flash, TWI EEPROM, or host UART/SPI - critical for field-upgradable consumer audio firmware. |
| Lockbox Secure Technology | Enables one-time-programmable (OTP) code protection against firmware cloning or reverse engineering in licensed audio products. |
| Dual-channel memory DMA | Offloads audio buffer transfers from CPU, freeing 100% of core cycles for real-time effects processing (e.g., echo cancellation, noise suppression). |
Applications
| Voice-Controlled Smart Speaker | Portable Digital Voice Recorder |
|---|---|
Use Scenario: Always-on far-field voice capture with wake-word detection and local speech processing before cloud upload. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-5C2 acts as the primary audio SoC, handling analog mic preamp gain control, 16 kHz beamforming, AEC, and secure firmware execution. Use Value: Integrated 90 dB SNR ADC and dual-stage mic boost (up to 40 dB) enable reliable 5-meter voice pickup; 500 MHz core executes neural wake-word models in <100 ms. |
Use Scenario: Battery-powered field recorder capturing broadcast-quality interviews with zero-latency monitoring. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-5C2 serves as audio subsystem controller, managing stereo line input, 48 kHz/24-bit recording, real-time file encoding, and headphone monitoring path. Use Value: 100 dB DAC SNR and low-distortion headphone driver deliver reference-grade playback; 7 mW playback power extends battery life to >18 hours on 2×AA cells. |
| USB Audio Class 2.0 Adapter | Industrial Voice Logger |
Use Scenario: Plug-and-play USB audio interface converting analog mic/line signals to digital streams for PC/Mac DAWs. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-5C2 implements USB audio class compliance, handles 24.576 MHz MCLK generation, and manages isochronous endpoint buffering. Use Value: Native USB mode support (12/24 MHz clocks) ensures jitter-free 96 kHz streaming; integrated codec eliminates external USB transceiver and audio PHY. |
Use Scenario: Ruggedized equipment logging operator voice commands in noisy factory environments with tamper-proof storage. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-5C2 performs analog front-end conditioning, adaptive noise gating, encrypted WAV file generation, and watchdog-monitored SD card writes. Use Value: Lockbox OTP memory secures firmware against unauthorized modification; -40°C to +85°C industrial temp grade ensures reliability in uncontrolled ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio-processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-BF527KBCZ-5C2 | Same core + codec architecture but adds EMAC peripheral and higher-speed USB 2.0 PHY; 600 MHz max frequency. | Required for Ethernet-connected audio gateways or VoIP endpoints needing wired network stack offload. | Select when LAN connectivity or >500 MHz deterministic latency is mandatory; otherwise ADSP-BF523KBCZ-5C2 offers optimal cost/performance balance. |
| ADAU1761WBCPZ | Dedicated SigmaDSP audio processor (no general-purpose CPU); 28-bit processing; 99 dB DAC SNR; no integrated flash or voltage regulator. | Better suited for fixed-function audio effects (EQ, crossover) without firmware customization or secure boot requirements. | Choose for pure DSP audio path optimization where Blackfin programmability and security are unnecessary. |
Compared with ADSP-BF527KBCZ-5C2, the ADSP-BF523KBCZ-5C2 reduces cost and power by omitting EMAC while retaining identical codec performance and 500 MHz real-time capability; versus ADAU1761WBCPZ, it trades raw DSP throughput for full programmability, secure boot, and system integration - making it superior for firmware-updatable, connected audio edge devices.
Availability
ADSP-BF523KBCZ-5C2 is available at Aetrix Electronics and suitable for voice-controlled smart speakers, portable digital voice recorders, USB audio adapters, and industrial voice loggers requiring stable component supply across multi-year production cycles.
Supply support for ADSP-BF523KBCZ-5C2 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 digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The ADSP-BF523KBCZ-5C2 belongs to the Blackfin embedded processor family, engineered specifically for real-time audio, video, and communications applications where deterministic processing, low power, and integrated analog interfaces are essential.
FAQ
What is the maximum operating frequency of the ADSP-BF523KBCZ-5C2?
The ADSP-BF523KBCZ-5C2 is rated for a maximum core clock frequency of 500 MHz under industrial temperature conditions (–40°C to +85°C), as specified in its C-grade speed bin. This frequency is guaranteed with proper decoupling, thermal management, and supply regulation per the ADSP-BF52x data sheet. The ADSP-BF523KBCZ-5C2 achieves this using its on-chip voltage regulator and optimized silicon process.
Does the ADSP-BF523KBCZ-5C2 include an integrated audio codec?
Yes, the ADSP-BF523KBCZ-5C2 integrates a full-featured stereo audio codec with 24-bit ADCs and DACs, supporting 8–96 kHz sampling rates, programmable gain amplifiers for line/mic inputs, headphone/line outputs, and digital audio interfaces (I²S, left/right-justified). This codec is physically embedded within the same die as the Blackfin processor core and shares the 289-ball CSP_BGA package.
What package type and ball count does the ADSP-BF523KBCZ-5C2 use?
The ADSP-BF523KBCZ-5C2 uses a 289-ball Chip Scale Package Ball Grid Array (CSP_BGA) with 12 mm × 12 mm body size and 0.5 mm ball pitch. This package is documented in the ADSP-BF52x datasheet and supports fine-pitch routing for high-density portable audio PCBs while enabling efficient thermal transfer through the thermal pad on the bottom side.
Can the ADSP-BF523KBCZ-5C2 operate in USB audio device mode?
Yes, the ADSP-BF523KBCZ-5C2 supports USB audio class operation via its embedded codec's USB mode, which accepts 12 MHz or 24 MHz master clock inputs and generates compliant 44.1/48 kHz streams. The codec's USB bit (Register R8, Bit D0) enables this mode, and its CODEC_BCLK output can drive external USB PHYs - though the ADSP-BF523KBCZ-5C2 itself lacks a native USB transceiver.
What is the ADC SNR specification for the ADSP-BF523KBCZ-5C2 codec?
The ADSP-BF523KBCZ-5C2 codec specifies an ADC SNR of 90 dB (A-weighted) at 48 kHz sampling rate and 3.3 V analog supply, measured with full-scale 1.0 Vrms input. This value is confirmed in the "Codec Electrical Characteristics" section of the ADSP-BF52xC datasheet Rev. A, Page 21, and reflects performance with internal high-pass filter disabled and optimal PGA gain settings.
ADSP-BF523KBCZ-5C2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 289-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- DMA, I2C, PPI, SPI, SPORT, UART
- Clock Rate:
- 533MHz
- Non-Volatile Memory:
- ROM (32kB)
- On-Chip RAM:
- 132kB
- Voltage - I/O:
- 1.8V, 2.5V, 3.3V
- Voltage - Core:
- 1.10V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 289-CSPBGA (12x12)
ADSP-BF523KBCZ-5C2 FAQ
1.How can I place an order for ADSP-BF523KBCZ-5C2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF523KBCZ-5C2 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 ADSP-BF523KBCZ-5C2 reliable?
The price and inventory of ADSP-BF523KBCZ-5C2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-BF523KBCZ-5C2 is usually 5 days.
3.What payment methods are accepted for ADSP-BF523KBCZ-5C2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF523KBCZ-5C2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF523KBCZ-5C2?
ADSP-BF523KBCZ-5C2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF523KBCZ-5C2 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 ADSP-BF523KBCZ-5C2?
For technical support, including ADSP-BF523KBCZ-5C2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF523KBCZ-5C2 requirements.
6.How does Aetrix verify that ADSP-BF523KBCZ-5C2 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF523KBCZ-5C2 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 ADSP-BF523KBCZ-5C2 meets industry standards.
7.What is the process for return or replacement of ADSP-BF523KBCZ-5C2?
All ADSP-BF523KBCZ-5C2 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF523KBCZ-5C2, 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 ADSP-BF523KBCZ-5C2 part is unused and in its original packaging.
Return procedure for ADSP-BF523KBCZ-5C2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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