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Analog Devices Inc. ADSP-BF526KBCZ-4C2
- Part No.:
- ADSP-BF526KBCZ-4C2
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF526KBCZ-4C2.pdf
- Description:
- IC DSP CTRLR 400MHZ 289CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:229
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Product details
Overview
ADSP-BF526KBCZ-4C2 from Analog Devices is a Blackfin embedded processor with integrated stereo audio codec, operating at 400 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 analog front-end integration and real-time signal processing.
For engineers reviewing the ADSP-BF526KBCZ-4C2 datasheet, ADSP-BF526KBCZ-4C2 pinout, ADSP-BF526KBCZ-4C2 application, or ADSP-BF526KBCZ-4C2 equivalent, key selection considerations include its 289-ball CSP_BGA package, USB/normal-mode sampling rate support (8–96 kHz), programmable gain amplifier inputs, and dual-channel memory DMA architecture for audio streaming.
Technical Context
The ADSP-BF526KBCZ-4C2 integrates a 400 MHz Blackfin core with an embedded low-power stereo audio codec supporting master/slave digital audio interface modes (I²S, left/right-justified, frame sync). Its codec includes independent 24-bit Σ-Δ ADCs and DACs with configurable oversampling (256×fS/384×fS normal mode; 250×fS/272×fS USB mode) and programmable high-pass/de-emphasis filters.
It features dedicated analog interfaces: stereo line inputs (–34.5 dB to +33 dB gain), monaural microphone input with 0/20/40 dB boost, headphone outputs (16 Ω/32 Ω drive), and line outputs (10 kΩ load). Power management includes 1.8 V–3.6 V analog/digital supply ranges and 7 mW stereo playback at 1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 400 MHz - Enables real-time audio processing with deterministic instruction cycle timing for low-latency codecs. |
| ADC SNR | 90 dB (A-weighted) at 48 kHz, 3.3 V - Defines dynamic range for recording fidelity in portable audio capture. |
| DAC SNR | 100 dB (A-weighted) at 48 kHz, 3.3 V - Ensures high-resolution playback with minimal quantization noise. |
| Sampling Rates | 8–96 kHz (normal/USB modes) - Supports full-range consumer and professional audio standards including CD (44.1 kHz) and DVD (48 kHz). |
| On-Chip Memory | 132 KB - Includes L1 instruction/data SRAM for zero-wait-state execution of time-critical audio algorithms. |
| Package | 289-ball CSP_BGA (12 mm × 12 mm) - Enables compact PCB layout for space-constrained handheld devices. |
| Power Consumption | 7 mW stereo playback (1.8 V supply) - Allows battery-operated operation exceeding 100 hours in low-duty-cycle audio playback. |
Pinout & Package
ADSP-BF526KBCZ-4C2 uses a 289-ball CSP_BGA package (12 mm × 12 mm, 0.5 mm pitch). The codec-specific pins include CODEC_BCLK (bidirectional bit clock), DACDAT/ADCDAT (digital audio data I/O), DACLRC/ADCLRC (left/right clock), CODEC_CLKOUT (programmable clock output), and analog interface pins (LLINEIN, RLINEIN, MICIN, LHPOUT, RHPOUT, LOUT, ROUT).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CODEC_BCLK | Digital audio bit clock I/O | Synchronizes sample data transfer between codec and host processor; supports master/slave configuration. |
| DACDAT | Digital audio data input | Receives time-multiplexed stereo PCM data for playback; compatible with I²S, left/right-justified, and frame sync protocols. |
| ADCDAT | Digital audio data output | Transmits digitized stereo audio from ADC; requires synchronous CODEC_BCLK/ADCLRC for error-free capture. |
| LLINEIN / RLINEIN | Stereo line input | Single-ended analog inputs with programmable PGA gain (–34.5 dB to +33 dB); biased to VMID for DC coupling. |
| MICIN | Monaural microphone input | High-impedance input with two-stage gain (0/20/40 dB); supports external REXT for fine gain adjustment down to 0 dB. |
| LHPOUT / RHPOUT | Stereo headphone driver output | Capable of driving 16 Ω or 32 Ω loads; volume programmable per channel (0–63 steps); pop/click suppression in mute/standby. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated stereo audio codec | Eliminates need for external codec IC, reducing BOM count and PCB area in portable audio systems. |
| Programmable oversampling rates | 256×fS/384×fS (normal) or 250×fS/272×fS (USB) - Optimizes anti-aliasing filter design and enables flexible clock tree planning. |
| Dual-path analog routing | Supports bypass (line-to-output) and sidetone (mic-to-output) paths - Enables real-time monitoring without DSP latency. |
| Low-voltage operation | 1.8 V minimum for digital core and analog supplies - Enables direct connection to single-cell Li-ion battery systems. |
| Software-configurable control interface | 2-wire TWI or 3-wire SPI (CMODE-selectable) - Simplifies host interface design and allows reuse of existing MCU peripheral resources. |
Applications
| Portable Media Players | Voice-Enabled IoT Devices |
|---|---|
|
Use Scenario: Battery-powered MP3/WMA player with line-in recording and headphone playback. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-4C2 serves as main application processor and audio subsystem controller, handling file decoding, UI, and real-time codec interfacing. Use Value: Integrated codec eliminates external audio IC, reducing power consumption by 12 mW and board area by 24 mm² versus discrete solution. |
Use Scenario: Smart speaker node capturing voice commands and playing TTS responses over headphones. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-4C2 performs acoustic echo cancellation, voice activity detection, and low-latency audio path switching. Use Value: On-chip 24-bit ADC/DAC with 90/100 dB SNR ensures clean voice capture and natural-sounding playback at ultra-low 7 mW power. |
| USB Audio Class Devices | Industrial Handheld Testers |
|
Use Scenario: USB-powered headset adapter supporting 48 kHz stereo streaming to PC. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-4C2 acts as USB audio device controller with embedded codec, managing USB enumeration, isochronous transfers, and sample rate conversion. Use Value: USB mode with 12 MHz/24 MHz MCLK compatibility enables plug-and-play compliance with Windows/macOS USB Audio Class 1.0. |
Use Scenario: Rugged field tester acquiring analog sensor signals and providing audible pass/fail feedback. IC Role / Device Role / Timing Role: ADSP-BF526KBCZ-4C2 functions as mixed-signal SoC, digitizing sensor outputs via ADC and generating diagnostic tones via DAC. Use Value: Programmable line/mic inputs and headphone outputs allow flexible signal injection and response verification without external signal generators. |
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-4C2 | Includes on-chip voltage regulator; same core, codec, and package. | Preferred where single-supply system simplification is critical and regulator efficiency outweighs marginal cost increase. | Select ADSP-BF527KBCZ-4C2 only if external regulator elimination justifies higher unit cost and thermal overhead. |
| ADAU1701JSTZ-RL | Dedicated SigmaDSP audio processor (no general-purpose CPU); 28-pin LFCSP; no integrated flash or SDRAM controller. | Better suited for fixed-function audio effects processing (EQ, crossover) without application-layer software requirements. | Choose ADAU1701JSTZ-RL when audio signal path is static and real-time OS/host interface is unnecessary. |
Compared with ADSP-BF526KBCZ-4C2, ADSP-BF527KBCZ-4C2 adds regulator integration but increases thermal density, while ADAU1701JSTZ-RL trades programmability for lower latency and smaller footprint in pure DSP tasks.
Availability
ADSP-BF526KBCZ-4C2 is available at Aetrix Electronics and suitable for portable media players, voice-enabled IoT devices, USB audio adapters, and industrial handheld testers requiring stable component supply across multi-year production cycles.
Supply support for ADSP-BF526KBCZ-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 company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-BF526KBCZ-4C2 belongs to the Blackfin BF52x family, designed specifically for cost-sensitive, low-power embedded audio applications requiring both real-time signal processing and integrated analog front-end functionality.
FAQ
What is the maximum sampling rate supported by the ADSP-BF526KBCZ-4C2 codec?
The ADSP-BF526KBCZ-4C2 codec supports up to 96 kHz sampling rate in both normal and USB modes. In normal mode, this requires a 12.288 MHz or 18.432 MHz CODEC_MCLK; in USB mode, a 12.000 MHz or 24.000 MHz MCLK achieves 96 kHz with 125× oversampling. The device maintains full 24-bit resolution and specified SNR performance at all supported rates.
Does the ADSP-BF526KBCZ-4C2 include an on-chip voltage regulator?
No, the ADSP-BF526KBCZ-4C2 does not include an on-chip voltage regulator. That feature is present only in the ADSP-BF523C, ADSP-BF525C, and ADSP-BF527C variants. The ADSP-BF526KBCZ-4C2 requires external regulation for its 1.8 V core and 1.8–3.6 V I/O/analog supplies, as specified in the ADSP-BF52x processor data sheet.
How is the ADSP-BF526KBCZ-4C2 codec controlled-SPI or I²C?
The ADSP-BF526KBCZ-4C2 codec supports both SPI and I²C (TWI) control interfaces, selected by the CMODE pin state. When CMODE = 0, it uses 2-wire TWI (device addresses 0x32 or 0x33 depending on CSB); when CMODE = 1, it uses 3-wire SPI (CSDA, CSCL, CSB). Register access is identical across both interfaces using 16-bit words (9-bit address + 7-bit data).
Can the ADSP-BF526KBCZ-4C2 operate from a single 1.8 V supply?
Yes, the ADSP-BF526KBCZ-4C2 supports 1.8 V minimum for digital core, I/O, and analog supplies. Full functionality-including 24-bit ADC/DAC operation at 90/100 dB SNR-is guaranteed at 1.8 V AVDD, HPVDD, and DVDD. However, analog performance margins (e.g., THD) are optimized at 3.3 V, and 1.8 V operation requires careful PCB layout to minimize noise coupling into AVDD/AGND.
What package type and ball count does the ADSP-BF526KBCZ-4C2 use?
The ADSP-BF526KBCZ-4C2 uses a 289-ball CSP_BGA package measuring 12 mm × 12 mm with 0.5 mm pitch. This package is identical across the ADSP-BF52xC series and provides thermal and electrical performance suitable for handheld audio devices. Ball assignments for codec-specific signals (e.g., CODEC_BCLK, DACDAT, MICIN) are documented in the ADSP-BF52xC datasheet Figure 32 and Table 3.
ADSP-BF526KBCZ-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, Ethernet, 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-BF526KBCZ-4C2 FAQ
1.How can I place an order for ADSP-BF526KBCZ-4C2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF526KBCZ-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-BF526KBCZ-4C2 reliable?
The price and inventory of ADSP-BF526KBCZ-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-BF526KBCZ-4C2 is usually 5 days.
3.What payment methods are accepted for ADSP-BF526KBCZ-4C2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF526KBCZ-4C2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF526KBCZ-4C2?
ADSP-BF526KBCZ-4C2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF526KBCZ-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-BF526KBCZ-4C2?
For technical support, including ADSP-BF526KBCZ-4C2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF526KBCZ-4C2 requirements.
6.How does Aetrix verify that ADSP-BF526KBCZ-4C2 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF526KBCZ-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-BF526KBCZ-4C2 meets industry standards.
7.What is the process for return or replacement of ADSP-BF526KBCZ-4C2?
All ADSP-BF526KBCZ-4C2 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF526KBCZ-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-BF526KBCZ-4C2 part is unused and in its original packaging.
Return procedure for ADSP-BF526KBCZ-4C2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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