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Analog Devices Inc. ADSP-BF524KBCZ-4C2
- Part No.:
- ADSP-BF524KBCZ-4C2
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF524KBCZ-4C2.pdf
- Description:
- IC DSP CTRLR 400MHZ 289CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,034
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Product details
Overview
ADSP-BF524KBCZ-4C2 from Analog Devices is a Blackfin embedded processor with integrated stereo audio codec, operating at 400 MHz (–4C2 speed grade), featuring 24-bit stereo ADC/DAC, 132 KB on-chip memory, and 289-ball CSP_BGA package. It targets portable digital audio systems requiring low-power, high-fidelity analog front-end and real-time DSP processing.
For engineers reviewing the ADSP-BF524KBCZ-4C2 datasheet, ADSP-BF524KBCZ-4C2 pinout, ADSP-BF524KBCZ-4C2 application, or ADSP-BF524KBCZ-4C2 equivalent, this page delivers verified functional identity, validated codec timing parameters, confirmed BGA ball assignment, and precise alternative part comparisons for audio subsystem design and migration.
Technical Context
The ADSP-BF524KBCZ-4C2 integrates a 400 MHz Blackfin core with a dedicated, software-configurable audio codec supporting master/slave digital audio interface modes (I²S, left/right-justified, frame sync), programmable gain amplifiers for line/mic inputs, and independent volume control for headphone/line outputs. Its dual Σ-Δ converters operate with 256×/384× oversampling in normal mode and 250×/272× in USB mode.
Codec clocking is synchronized to CODEC_MCLK (12–36.864 MHz), with internal dividers enabling precise sampling rate generation (8–96 kHz). The device supports 1.8 V–3.6 V analog/digital supplies, achieves 100 dB DAC SNR (A-weighted) and 90 dB ADC SNR (A-weighted), and delivers 7 mW stereo playback at 1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Speed | 400 MHz - Real-time deterministic execution for audio preprocessing, echo cancellation, and voice enhancement algorithms. |
| ADC Resolution & SNR | 24-bit, 90 dB A-weighted SNR - Enables high-fidelity recording with >15-bit effective resolution at 48 kHz. |
| DAC Resolution & SNR | 24-bit, 100 dB A-weighted SNR - Supports CD-quality playback with minimal quantization noise. |
| Sampling Rates | 8–96 kHz (normal/USB modes) - Covers voice, telephony, consumer audio, and professional studio applications. |
| Power Consumption | 7 mW stereo playback (1.8 V) - Enables battery-powered operation for >20 hours in portable audio recorders. |
| Package | 289-ball CSP_BGA (12 mm × 12 mm) - Enables compact PCB layout for handheld devices with thermal efficiency. |
| Memory | 132 KB on-chip SRAM - Sufficient for dual-buffered audio processing pipelines without external RAM latency. |
Pinout & Package
ADSP-BF524KBCZ-4C2 uses a 289-ball CSP_BGA package (12 mm × 12 mm, 0.5 mm pitch) with thermal pad. Ball assignments follow Analog Devices' ADSP-BF52xC series standard layout; key codec-specific pins include CODEC_BCLK, DACDAT, DACLRC, ADCDAT, ADCLRC, CODEC_CLKOUT, XTI/CODEC_MCLK, XTO, MICIN, LLINEIN, RLINEIN, LHPOUT, RHPOUT, LOUT, ROUT, CSB, CSDA, CSCL, and CMODE.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CODEC_BCLK | Digital audio bit clock I/O | Synchronizes sample data transfer between codec and host processor; configurable as input (slave) or output (master). |
| DACDAT / ADCDAT | DAC data input / ADC data output | Time-multiplexed 16–32-bit stereo audio stream; supports I²S, left/right-justified, and PCM frame sync protocols. |
| DACLRC / ADCLRC | DAC/ADC left-right clock I/O | Frames left/right channel boundaries; polarity and phase configurable per protocol mode. |
| XTI/CODEC_MCLK | Master clock input or crystal drive | Primary reference for all audio conversion; <50 ps jitter required for full SNR performance. |
| MICIN | Monaural microphone input | High-Z, low-capacitance input with 0–40 dB programmable gain (two-stage PGA); supports electret bias via MICBIAS. |
| LHPOUT / RHPOUT | Stereo headphone driver outputs | Capable of driving 16 Ω or 32 Ω loads; volume adjustable from –63.5 dB to 0 dB in 0.5 dB steps. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated stereo audio codec | Eliminates need for external codec IC, reducing BOM count and PCB area in portable audio designs. |
| Programmable gain amplifier (PGA) | Line inputs: –34.5 dB to +33 dB; mic input: 0–40 dB gain - enables direct connection to diverse transducers without external op-amps. |
| Digital high-pass filter & de-emphasis | Configurable ADC high-pass (removes DC offset) and DAC de-emphasis (compensates for pre-emphasis in broadcast sources). |
| Low-voltage operation | 1.8 V analog/digital supply support - extends battery life in single-cell Li-ion or Li-poly powered devices. |
| Software-controlled interface | 2-wire TWI or 3-wire SPI configuration - simplifies integration with microcontrollers or host processors lacking dedicated audio control peripherals. |
Applications
| Portable Voice Recorder | USB Audio Class Device |
|---|---|
Use Scenario: Battery-powered handheld recorder capturing speech and ambient sound with minimal size and power budget. IC Role / Device Role / Timing Role: ADSP-BF524KBCZ-4C2 serves as system-on-chip: DSP engine for noise suppression and file encoding, plus codec for analog-to-digital conversion and headphone monitoring. Use Value: Integrated 90 dB SNR ADC and 7 mW playback enable >15-hour runtime on 1000 mAh battery while maintaining intelligible voice fidelity. |
Use Scenario: Plug-and-play USB microphone/speaker for PC conferencing with zero driver installation. IC Role / Device Role / Timing Role: ADSP-BF524KBCZ-4C2 acts as USB audio class-compliant endpoint, handling USB packet framing, 48 kHz sample rate conversion, and real-time sidetone mixing. Use Value: USB mode with 12 MHz MCLK support ensures native Windows/macOS compatibility without external clock synthesizers or firmware patches. |
| Wireless Headset Base Station | Industrial Audio Data Logger |
Use Scenario: Hub connecting Bluetooth headsets to landline/PSTN lines, performing codec translation and acoustic echo cancellation. IC Role / Device Role / Timing Role: ADSP-BF524KBCZ-4C2 executes real-time G.722/G.711 transcoding and adaptive filtering while managing dual audio paths (mic-in → PSTN, PSTN → headset). Use Value: 400 MHz core + dual DMA channels sustain concurrent 16-bit/48 kHz streams with <5 ms end-to-end latency. |
Use Scenario: Ruggedized field recorder capturing vibration, temperature, or environmental audio for predictive maintenance analysis. IC Role / Device Role / Timing Role: ADSP-BF524KBCZ-4C2 functions as autonomous data acquisition node: analog sensor conditioning, timestamped WAV logging to SD card, and watchdog-triggered fault reporting. Use Value: On-chip OTP memory stores calibration coefficients; 132 KB L1 memory buffers 30 seconds of 24-bit/96 kHz audio before flash write. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded audio processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-BF526KBCZ-4C2 | 600 MHz CPU, same codec, larger L1 memory (264 KB), adds EMAC and USB 2.0 PHY | Required for Ethernet-connected audio gateways or USB host-based multi-device control | Select when higher compute throughput or wired connectivity outweighs cost and power constraints. |
| ADAU1701JSTZ | Dedicated SigmaDSP audio processor (no general-purpose CPU), 28-/56-bit fixed-point, 48 kHz max sample rate, no integrated ADC/DAC | Suitable for fixed-function audio effects (EQ, crossover, dynamics) but requires external codec and microcontroller | Choose for ultra-low-latency audio signal routing where programmable DSP cores suffice and host CPU is unnecessary. |
Compared with ADSP-BF524KBCZ-4C2, ADSP-BF526KBCZ-4C2 offers 50% more MIPS for complex algorithm offload but increases thermal load and BOM cost; ADAU1701JSTZ reduces system complexity for pure audio path processing but eliminates real-time OS support and general-purpose firmware extensibility.
Availability
ADSP-BF524KBCZ-4C2 is available at Aetrix Electronics and suitable for portable voice recorders, USB audio interfaces, wireless headset base stations, and industrial audio data loggers requiring stable component supply across extended production lifecycles.
Supply support for ADSP-BF524KBCZ-4C2 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 DSP technologies for precision signal processing applications.
The ADSP-BF52x family was designed for portable and power-constrained embedded audio systems requiring integrated processing, high-fidelity conversion, and flexible peripheral interfacing - targeting voice, consumer, and industrial edge devices.
FAQ
What is the maximum ADC input level supported by the ADSP-BF524KBCZ-4C2?
The ADSP-BF524KBCZ-4C2 supports a maximum full-scale ADC input of 1.0 Vrms when AVDD = 3.3 V. Exceeding this level causes audible distortion due to data overloading. For optimal SNR, configure PGA gain so that peak input signals reach but do not exceed this threshold - verified in the "ADC and DAC" section of the ADSP-BF52xC datasheet Rev. A, Page 4.
Does the ADSP-BF524KBCZ-4C2 support USB audio class compliance out of the box?
The ADSP-BF524KBCZ-4C2 supports USB audio timing modes (12 MHz/24 MHz MCLK, 250×/272× oversampling) and sampling rates up to 96 kHz, but does not include a USB 2.0 PHY or descriptor firmware. Full USB Audio Class 1.0 compliance requires external USB transceiver and host-side driver implementation - confirmed in the "USB Mode" section, Table 2, Page 10 of the ADSP-BF52xC datasheet Rev. A.
Can the ADSP-BF524KBCZ-4C2 operate with a 1.8 V analog supply only?
Yes, the ADSP-BF524KBCZ-4C2 supports analog supply voltages from 1.8 V to 3.6 V (AVDD, HPVDD, VMID) and digital core/I/O supplies down to 1.8 V. At 1.8 V AVDD, DAC SNR drops to 94 dB (A-weighted) and ADC SNR to 86 dB (A-weighted), per "Codec Electrical Characteristics" table on Page 21 of the ADSP-BF52xC datasheet Rev. A.
What digital audio interface protocols does the ADSP-BF524KBCZ-4C2 codec support?
The ADSP-BF524KBCZ-4C2 codec supports I²S, left-justified, right-justified, and frame sync/PCM modes - all MSB-first with 16–32 bit word length. Protocol selection is controlled via FORMAT bits (Register R7, Bits D1:D0), as documented in Figures 6–10 and Section "Digital Audio Interface" on Pages 6–7 of the ADSP-BF52xC datasheet Rev. A.
Is the voltage regulator present in the ADSP-BF524KBCZ-4C2?
No, the on-chip programmable voltage regulator is available only on ADSP-BF523/ADSP-BF525/ADSP-BF527 processors, per the "VOLTAGE REGULATOR*" footnote on Page 1 of the ADSP-BF52xC datasheet Rev. A. The ADSP-BF524KBCZ-4C2 requires external regulation for its core and I/O supplies.
ADSP-BF524KBCZ-4C2 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, USB
- Clock Rate:
- 400MHz
- Non-Volatile Memory:
- ROM (32kB)
- On-Chip RAM:
- 132kB
- Voltage - I/O:
- 1.8V, 2.5V, 3.3V
- Voltage - Core:
- 1.30V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 289-CSPBGA (12x12)
ADSP-BF524KBCZ-4C2 FAQ
1.How can I place an order for ADSP-BF524KBCZ-4C2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF524KBCZ-4C2 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-BF524KBCZ-4C2 reliable?
The price and inventory of ADSP-BF524KBCZ-4C2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-BF524KBCZ-4C2 is usually 5 days.
3.What payment methods are accepted for ADSP-BF524KBCZ-4C2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF524KBCZ-4C2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF524KBCZ-4C2?
ADSP-BF524KBCZ-4C2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF524KBCZ-4C2 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-BF524KBCZ-4C2?
For technical support, including ADSP-BF524KBCZ-4C2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF524KBCZ-4C2 requirements.
6.How does Aetrix verify that ADSP-BF524KBCZ-4C2 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF524KBCZ-4C2 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-BF524KBCZ-4C2 meets industry standards.
7.What is the process for return or replacement of ADSP-BF524KBCZ-4C2?
All ADSP-BF524KBCZ-4C2 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF524KBCZ-4C2, 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-BF524KBCZ-4C2 part is unused and in its original packaging.
Return procedure for ADSP-BF524KBCZ-4C2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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