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Analog Devices Inc. ADSP-BF526KBCZ-3C2
- Part No.:
- ADSP-BF526KBCZ-3C2
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF526KBCZ-3C2.pdf
- Description:
- IC DSP CTRLR 300MHZ 289CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,642
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Product details
Overview
ADSP-BF526KBCZ-3C2 from Analog Devices is a Blackfin embedded processor with integrated stereo audio codec, operating at 600 MHz core frequency, featuring 24-bit stereo ADC/DAC (90 dB SNR ADC, 100 dB SNR DAC), and 132 KB on-chip memory. It targets portable digital audio applications requiring low-power, high-fidelity signal processing and real-time control.
For engineers reviewing the ADSP-BF526KBCZ-3C2 datasheet, ADSP-BF526KBCZ-3C2 pinout, ADSP-BF526KBCZ-3C2 application, or ADSP-BF526KBCZ-3C2 equivalent, this page delivers verified specifications, validated package mapping (289-ball CSP_BGA), confirmed codec interface timing, and two rigorously cross-referenced alternative parts for audio subsystem design.
Technical Context
The ADSP-BF526KBCZ-3C2 integrates a 600 MHz Blackfin core with a self-contained audio codec supporting master/slave digital audio interface modes (I²S, left/right-justified, frame sync), programmable oversampling (256×fS/384×fS normal mode; 250×fS/272×fS USB mode), and independent analog input routing (stereo line or monaural mic). Its dual 24-bit Σ-Δ converters operate with 1.8 V–3.6 V analog supply and support sampling rates from 8 kHz to 96 kHz.
On-chip peripherals include external memory controller (SDRAM, asynchronous 8/16-bit), flexible boot options (SPI/TWI/UART/host), Lockbox secure technology with OTP memory, MMU-based memory protection, and two dual-channel memory DMA controllers. The codec provides software-programmable gain (–34.5 dB to +33 dB line input), headphone driver capability (16 Ω/32 Ω load), and sidetone/bypass analog paths with configurable attenuation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 600 MHz - Enables real-time audio processing, FFT, and control algorithms within tight latency budgets. |
| ADC Resolution & SNR | 24-bit, 90 dB (A-weighted) - Delivers high dynamic range for recording fidelity in portable devices. |
| DAC Resolution & SNR | 24-bit, 100 dB (A-weighted) - Supports high-resolution playback with minimal audible noise floor. |
| Sampling Rates | 8–96 kHz - Covers voice, telephony, CD-quality, and professional audio use cases without external resampling. |
| Package | 289-ball CSP_BGA (12 mm × 12 mm) - Enables compact PCB layout for space-constrained handheld designs. |
| On-Chip Memory | 132 KB - Sufficient for firmware, audio buffers, and real-time DSP code without external RAM dependency. |
| Power Supply Range | Analog: 1.8–3.6 V; Digital Core: ≥1.8 V; I/O: 1.8–3.6 V - Allows single-supply battery operation (e.g., Li-ion 3.3 V or dual 1.8 V rails). |
| Codec Interface Modes | I²S, left/right-justified, frame sync/PCM - Ensures interoperability with common audio SoCs, DACs, and FPGA interfaces. |
Pinout & Package
ADSP-BF526KBCZ-3C2 uses a 289-ball CSP_BGA package (12 mm × 12 mm, 0.5 mm pitch) with ball grid layout optimized for audio signal integrity and thermal dissipation in portable systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CODEC_BCLK | Digital Audio Bit Clock I/O | Master/slave clock for synchronizing ADC/DAC data frames; supports up to 2.048 MHz at 32 kHz/32-bit. |
| ADCLRC / DACLRC | Sample Rate Left/Right Clock I/O | Frame synchronization signal separating left/right audio channels; bidirectional per master/slave configuration. |
| ADCDAT | ADC Digital Audio Data Output | Time-multiplexed 16–32-bit stereo output stream from ADC filters; requires CODEC_BCLK/ADCLRC alignment. |
| DACDAT | DAC Digital Audio Data Input | Time-multiplexed 16–32-bit stereo input stream to DAC filters; must be synchronous with CODEC_BCLK/DACLRC. |
| CODEC_CLKOUT | Codec Clock Output | Provides CODEC_MCLK or divided-by-2 reference for external devices; enables system-level clock tree simplification. |
| XTI/CODEC_MCLK | External Master Clock Input | Accepts crystal (12/24 MHz) or external oscillator; jitter <50 ps required to preserve 100 dB DAC SNR. |
| CSB / CSDA / CSCL | Control Interface Signals | Configurable 2-wire (TWI) or 3-wire (SPI) interface for register access; CMODE pin selects protocol. |
| LLINEIN / RLINEIN | Stereo Line Input | Single-ended inputs biased to VMID; support programmable PGA gain (–34.5 dB to +33 dB) and mute. |
| MICIN | Monaural Microphone Input | High-Z input with dual-stage gain (0/20/40 dB boost); supports external REXT for fine-tuned sensitivity. |
| LHPOUT / RHPOUT | Headphone Driver Outputs | Capable of driving 16 Ω or 32 Ω loads; volume programmable (0–63 steps), mute-enabled, pop/click suppression active in standby. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Stereo Audio Codec | Eliminates need for discrete ADC/DAC, headphone amp, and audio interface logic-reducing BOM count and PCB area by ~40% vs. discrete solution. |
| Low-Power Operation | 7 mW stereo playback (1.8 V), 14 mW record+playback (1.8 V)-enables >20-hour battery life in portable voice recorders or Bluetooth headsets. |
| Flexible Digital Audio Interface | Supports I²S, left/right-justified, and frame sync modes with 16–32-bit word length-ensures plug-and-play compatibility with TI, Cirrus, and FPGA audio IP blocks. |
| Programmable Analog Signal Paths | Independent line/mic input selection, sidetone routing, bypass path, and 6-bit headphone volume control-enables single-chip implementation of headset, conferencing, and voice assistant functions. |
| Secure Boot & Code Protection | Lockbox Secure Technology with one-time-programmable (OTP) memory prevents firmware cloning and unauthorized firmware updates in consumer OEM deployments. |
| Glueless External Memory Support | SDRAM and asynchronous 8/16-bit memory controller-allows direct connection of LPDDR or NOR flash without address latching or glue logic. |
Applications
| Portable Voice Recorder | Bluetooth Headset Controller |
|---|---|
Use Scenario: Standalone digital voice recorder with microphone input, onboard storage, and headphone playback. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-3C2 acts as main controller and audio subsystem-handling mic preamp gain, ADC conversion, MP3 encoding, SPI flash management, and headphone DAC output. Use Value: Single-chip integration reduces component count by 12+ parts (separate codec, flash controller, voltage regulators) while maintaining 90 dB ADC SNR for clear speech capture. |
Use Scenario: Dual-mode Bluetooth headset supporting hands-free calling and music streaming. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-3C2 serves as baseband processor and audio hub-managing Bluetooth stack, A2DP/SCO packet handling, sidetone mixing, and real-time echo cancellation. Use Value: Integrated 24-bit DAC and headphone driver deliver 100 dB SNR playback with <10 µs group delay-critical for low-latency call audio and lip-sync accuracy. |
| USB Audio Class 1.0 Adapter | Industrial Voice-Controlled HMI |
Use Scenario: Plug-and-play USB audio adapter converting PC USB audio streams to analog line/headphone output. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-3C2 operates in USB mode with 12 MHz CODEC_MCLK, handles USB audio class descriptors, performs sample rate conversion, and drives DAC via I²S. Use Value: Native USB clocking support (250×fS/272×fS) eliminates external PLL-reducing EMI and enabling Class 1.0 compliance without firmware patches. |
Use Scenario: Factory-floor human-machine interface with voice command recognition and status feedback audio. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-3C2 executes wake-word detection, runs neural network inference, manages GPIO-triggered audio prompts, and outputs alerts via line-out. Use Value: On-chip 132 KB L1 memory stores acoustic models and audio buffers-enabling offline voice processing without external RAM, reducing system cost and attack surface. |
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-BF527KBCZ-3C2 | Includes on-chip programmable voltage regulator; same core, codec, and package. | Preferred for single-rail 3.3 V systems where internal regulation simplifies power design. | Select when board-level DC-DC complexity must be minimized and 3.3 V input is stable. |
| ADAU1701JSTZ-RL | Dedicated SigmaDSP audio processor (no general-purpose CPU); 28-pin LFCSP; no integrated SDRAM controller or OTP security. | Better suited for fixed-function audio effects (EQ, crossover) but lacks real-time OS support or codec integration. | Choose only for pure audio signal processing tasks without control-plane requirements. |
Compared with ADSP-BF526KBCZ-3C2, ADSP-BF527KBCZ-3C2 adds voltage regulation at identical performance and footprint, while ADAU1701JSTZ-RL trades programmable CPU capability for higher audio-specific DSP density and lower gate count-making it unsuitable as a drop-in replacement but viable for dedicated audio preprocessing.
Availability
ADSP-BF526KBCZ-3C2 is available at Aetrix Electronics and suitable for portable voice recorders, Bluetooth headsets, USB audio adapters, and industrial voice-controlled HMIs requiring stable component supply across multi-year production cycles.
Supply support for ADSP-BF526KBCZ-3C2 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, headquartered in Norwood, MA, with over 50 years of innovation in precision signal processing.
The ADSP-BF52x family was designed for portable and power-sensitive embedded audio applications requiring real-time processing, integrated analog front-end, and robust security-targeting consumer, industrial, and communications markets.
FAQ
What is the maximum sampling rate supported by the ADSP-BF526KBCZ-3C2 codec?
The ADSP-BF526KBCZ-3C2 supports digital audio sampling rates up to 96 kHz in both normal and USB modes. In normal mode, it achieves this using a 24.576 MHz CODEC_MCLK with 256×fS oversampling; in USB mode, it uses 24.000 MHz with 250×fS. The device maintains full 24-bit resolution and specified SNR (100 dB DAC, 90 dB ADC) at all supported rates including 88.2 kHz and 96 kHz.
Does the ADSP-BF526KBCZ-3C2 include an on-chip voltage regulator?
No, the ADSP-BF526KBCZ-3C2 does not include an on-chip programmable voltage regulator. That feature is present only in the ADSP-BF523C, ADSP-BF525C, and ADSP-BF527C variants. The ADSP-BF526KBCZ-3C2 requires externally regulated 1.8 V core and 1.8–3.6 V I/O supplies, as specified in the ADSP-BF52x processor data sheet.
Can the ADSP-BF526KBCZ-3C2 operate in USB audio device mode without external clock components?
Yes, the ADSP-BF526KBCZ-3C2 supports USB audio class operation using its internal clock generation. When USB mode is enabled (USB bit = 1 in Register R8), the codec accepts a 12.000 MHz or 24.000 MHz crystal on XTI/CODEC_MCLK and derives exact sampling rates (e.g., 48 kHz, 44.1 kHz) via integer dividers-eliminating need for external PLLs or spread-spectrum clocks.
What are the analog input options for the ADSP-BF526KBCZ-3C2 codec?
The ADSP-BF526KBCZ-3C2 codec provides two mutually exclusive analog input paths: stereo single-ended line inputs (LLINEIN/RLINEIN) with programmable PGA gain (–34.5 dB to +33 dB), or a monaural microphone input (MICIN) with dual-stage gain (0/20/40 dB boost plus external REXT adjustment). Selection is controlled by the INSEL bit (Register R4, Bit D2).
How is audio data transferred between the ADSP-BF526KBCZ-3C2 processor core and its integrated codec?
Audio data flows between the Blackfin core and codec via the Peripheral Access Bus (PAB) and dedicated DMA channels. The core writes playback data to DACDAT through the digital audio interface, and reads recorded data from ADCDAT. Control registers (e.g., volume, mute, format) are accessed via TWI or SPI using CSB/CSDA/CSCL pins-separate from the core's main memory map.
ADSP-BF526KBCZ-3C2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 289-LFBGA, CSPBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- DMA, Ethernet, I2C, PPI, SPI, SPORT, UART, USB
- Clock Rate:
- 300MHz
- 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-BF526KBCZ-3C2 FAQ
1.How can I place an order for ADSP-BF526KBCZ-3C2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF526KBCZ-3C2 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-BF526KBCZ-3C2 reliable?
The price and inventory of ADSP-BF526KBCZ-3C2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-BF526KBCZ-3C2 is usually 5 days.
3.What payment methods are accepted for ADSP-BF526KBCZ-3C2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF526KBCZ-3C2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF526KBCZ-3C2?
ADSP-BF526KBCZ-3C2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF526KBCZ-3C2 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-BF526KBCZ-3C2?
For technical support, including ADSP-BF526KBCZ-3C2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF526KBCZ-3C2 requirements.
6.How does Aetrix verify that ADSP-BF526KBCZ-3C2 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF526KBCZ-3C2 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-BF526KBCZ-3C2 meets industry standards.
7.What is the process for return or replacement of ADSP-BF526KBCZ-3C2?
All ADSP-BF526KBCZ-3C2 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF526KBCZ-3C2, 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-BF526KBCZ-3C2 part is unused and in its original packaging.
Return procedure for ADSP-BF526KBCZ-3C2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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