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Analog Devices Inc. ADSP-BF523KBCZ-6C2
- Part No.:
- ADSP-BF523KBCZ-6C2
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF523KBCZ-6C2.pdf
- Description:
- IC DSP CTRLR 24B W/CODEC 289BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,988
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Product details
Overview
ADSP-BF523KBCZ-6C2 from Analog Devices is a 600 MHz Blackfin embedded processor with integrated stereo 24-bit audio codec, 132KB on-chip memory, and programmable on-chip voltage regulator. It supports 8–96 kHz sampling rates, operates at 1.8–3.6 V analog/digital supplies, and delivers 100 dB DAC SNR and 90 dB ADC SNR at 48 kHz for portable digital audio systems.
For engineers reviewing the ADSP-BF523KBCZ-6C2 datasheet, ADSP-BF523KBCZ-6C2 pinout, ADSP-BF523KBCZ-6C2 application, or ADSP-BF523KBCZ-6C2 equivalent, this page provides verified functional identity, validated package mapping (289-ball CSP_BGA), confirmed codec interface timing, real-world power consumption data (7 mW playback @ 1.8 V), and two field-validated alternative parts for audio DSP migration paths.
Technical Context
The ADSP-BF523KBCZ-6C2 integrates a dual-MAC Blackfin core with a fully autonomous embedded codec subsystem featuring independent Σ-Δ ADC/DAC converters, programmable gain amplifiers, and digital high-pass/de-emphasis filters. Its CODEC_MCLK input accepts 12–24.576 MHz external clocks with <50 ps jitter tolerance, and internal clock division (÷1 or ÷2) enables USB and normal mode operation.
Codec control uses either TWI (I²C-compatible, 7-bit address 0x34/0x35) or SPI (3-wire) via CMODE pin selection, while digital audio I/O supports I²S, left/right-justified, and frame-sync modes with 16–32 bit word lengths. The device implements separate bypass (line-to-output) and sidetone (mic-to-output) analog signal paths with configurable attenuation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Blackfin BF523, 600 MHz peak performance, RISC-like register model for compiler efficiency |
| ADC/DAC Resolution | 24-bit stereo converters with oversampling Σ-Δ architecture enabling 90 dB (ADC) and 100 dB (DAC) A-weighted SNR |
| Sampling Rates | 8–96 kHz in normal mode (256×/384× fS); 8–96 kHz in USB mode (250×/272× fS) with 12/24 MHz MCLK support |
| Power Consumption | 7 mW stereo playback, 14 mW record+playback - both measured at 1.8 V supply for portable battery life optimization |
| Analog Supply Range | 1.8 V to 3.6 V AVDD/HPVDD; supports single-supply 1.8 V system design without level-shifting |
| Digital Audio Interface | I²S, left/right-justified, frame-sync/PCM modes; MSB-first, 16–32 bit word length, synchronous CODEC_BCLK/ADCLRC/DACLRC timing |
| Package | 289-ball CSP_BGA (12 mm × 12 mm, 0.5 mm pitch) - compatible with standard BGA reflow profiles |
Pinout & Package
289-ball CSP_BGA package (12 mm × 12 mm, 0.5 mm ball pitch) with thermal pad exposed on underside for enhanced heat dissipation in compact audio enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CODEC_MCLK | Codec Master Clock Input | Accepts 12–24.576 MHz external crystal or oscillator; <50 ps jitter required for full 100 dB DAC SNR |
| CODEC_BCLK | Digital Audio Bit Clock | I/O pin; frequency = fS × word length × 2 (e.g., 2.048 MHz for 32 kHz/32-bit); must be synchronous to CODEC_MCLK |
| ADCLRC / DACLRC | ADC/DAC Left-Right Clock | I/O pins; frame sync signals separating left/right channels; operate in master or slave configuration |
| ADCDAT / DACDAT | ADC Output / DAC Input Data | Time-multiplexed stereo data streams; MSB-first, 16–32 bit depth; require CODEC_BCLK synchronization |
| CMODE | Control Interface Mode Select | Input pin selecting TWI (CMODE=0) or SPI (CMODE=1) for codec register programming |
| CSDA / CSCL / CSB | TWI/SPI Control Signals | CSDA: bidirectional data; CSCL: clock; CSB: TWI address select (0x34/0x35) or SPI latch enable |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Audio Codec | Self-contained stereo 24-bit ADC/DAC with PGA, headphone driver, line/mic inputs, and digital filters - eliminates need for external codec IC |
| Low-Power Operation | 7 mW playback and 14 mW record+playback at 1.8 V enables >20-hour battery life in portable voice recorders |
| Flexible Clock Architecture | CODEC_MCLK ÷1/÷2 selection and CODEC_CLKOUT output allow single crystal to serve both processor and codec domains |
| Direct Analog Signal Paths | Bypass (line→output) and sidetone (mic→output) paths avoid ADC/DAC conversion latency for real-time monitoring |
| Software-Controlled Audio Routing | Register-based INSEL, BYPASS, SIDETONE, and volume controls (LINVOL/RINVOL/LHPVOL/RHPVOL) enable dynamic audio topology changes |
Applications
| Portable Voice Recorder | USB Audio Class Device |
|---|---|
Use Scenario: Battery-powered handheld recorder capturing interviews with low-noise mic preamp and long-duration storage. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-6C2 acts as system-on-chip: DSP processes audio, codec digitizes mic input (90 dB SNR), and USB interface streams to host PC. Use Value: Integrated mic bias (MICBIAS), 40 dB programmable mic boost, and 14 mW total power extend recording time without external components. | Use Scenario: Plug-and-play USB headset or speakerphone requiring UAC 1.0 compliance and zero-latency sidetone feedback. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-6C2 serves as USB audio controller: codec operates in USB mode (12 MHz MCLK), DSP handles echo cancellation, and sidetone path enables real-time mic monitoring. Use Value: USB mode sampling tables (Table 2) guarantee exact 44.1/48 kHz rates; sidetone attenuation (–6 to –15 dB) prevents feedback during calls. |
| Smart Speaker Audio Front-End | Industrial Voice Interface Terminal |
Use Scenario: Always-listening smart speaker using far-field mic array and wake-word detection before cloud offload. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-6C2 functions as local audio preprocessor: ADC captures multi-channel audio, DSP runs keyword spotting, and codec outputs processed stream via I²S to main SoC. Use Value: 24-bit ADC resolution and 90 dB SNR preserve acoustic detail for ML inference; 132KB L1 memory enables on-chip feature extraction without external RAM. | Use Scenario: Ruggedized factory terminal with push-to-talk voice command interface operating in noisy industrial environments. IC Role / Device Role / Timing Role: ADSP-BF523KBCZ-6C2 operates as standalone voice controller: line input receives headset audio, DSP applies noise suppression, and DAC drives local speaker with mute control. Use Value: Programmable line input volume (–34.5 to +33 dB) compensates for varying headset sensitivities; hardware mute (LINMUTE/MUTEMIC bits) ensures fail-safe silence during critical operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar audio DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-BF527KBCZ-6C2 | Same Blackfin core and codec, but adds EMAC Ethernet MAC and additional PPI parallel interface | Required for network-connected audio devices needing Ethernet streaming or remote firmware updates | Select when Ethernet connectivity or parallel video/audio interface is mandatory; otherwise ADSP-BF523KBCZ-6C2 offers lower cost and identical audio performance |
| ADAU1701JSTZ-RL | Dedicated SigmaDSP audio processor (no general-purpose CPU); 28-bit fixed-point engine; no integrated ADC/DAC | Suitable for fixed-function audio effects (EQ, crossover) where host MCU handles control and streaming | Choose for pure audio signal processing with ultra-low latency; use ADSP-BF523KBCZ-6C2 when programmable DSP + codec integration + flexible I/O are needed |
Compared with ADSP-BF527KBCZ-6C2, the ADSP-BF523KBCZ-6C2 reduces BOM count by omitting unused EMAC hardware, lowering power and cost for USB/portable audio. Against ADAU1701JSTZ-RL, it trades dedicated audio acceleration for full programmability and on-chip conversion - enabling custom algorithms and eliminating external codec components.
Availability
ADSP-BF523KBCZ-6C2 is available at Aetrix Electronics and suitable for portable voice recorders, USB audio class devices, smart speaker front-ends, and industrial voice interface terminals requiring stable component supply across production lifecycles.
Supply support for ADSP-BF523KBCZ-6C2 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.
The ADSP-BF523KBCZ-6C2 belongs to the Blackfin embedded processor family designed specifically for converged audio, voice, and multimedia applications where real-time processing, low power, and system integration are critical.
FAQ
What is the maximum sampling rate supported by the ADSP-BF523KBCZ-6C2 codec?
The ADSP-BF523KBCZ-6C2 supports up to 96 kHz in both normal mode (using 256×/384× fS clocks like 24.576 MHz) and USB mode (using 12/24 MHz MCLK). At 96 kHz, DAC SNR remains 100 dB (A-weighted) and ADC SNR is 90 dB (A-weighted), confirming full-resolution performance across the entire audio band.
Does the ADSP-BF523KBCZ-6C2 include a programmable voltage regulator?
Yes, the ADSP-BF523KBCZ-6C2 includes an on-chip programmable voltage regulator - a feature confirmed for the ADSP-BF523, ADSP-BF525, and ADSP-BF527 processors per the official revision A datasheet. This allows dynamic core voltage scaling to optimize power versus performance in battery-operated systems.
Can the ADSP-BF523KBCZ-6C2 operate with a 1.8 V analog supply?
Yes, the ADSP-BF523KBCZ-6C2 supports 1.8 V to 3.6 V for analog supplies (AVDD, HPVDD) and digital I/O, enabling true single-supply 1.8 V system design. Its 7 mW stereo playback and 14 mW record+playback power figures are explicitly measured at 1.8 V, validating low-voltage operation.
What digital audio interface protocols does the ADSP-BF523KBCZ-6C2 codec support?
The ADSP-BF523KBCZ-6C2 codec supports I²S, left-justified, right-justified, and frame-sync/PCM modes with 16–32 bit word lengths. All modes are MSB-first and require CODEC_BCLK synchronization - confirmed in Figures 6–10 and Section "Digital Audio Interface" of the Rev. A datasheet.
Is the ADSP-BF523KBCZ-6C2 pin-compatible with other ADSP-BF52xC variants?
Yes, all ADSP-BF52xC processors (BF522C/BF523C/BF524C/BF525C/BF526C/BF527C) share the identical 289-ball CSP_BGA package and pinout, including codec-specific signals like CODEC_MCLK, CODEC_BCLK, and CSDA. This allows hardware reuse across the family when migrating between performance tiers.
ADSP-BF523KBCZ-6C2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Blackfin®
- Package/Case:
- 289-LFBGA, CSPBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- DMA, I2C, PPI, SPI, SPORT, UART
- Clock Rate:
- 600MHz
- 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-6C2 FAQ
1.How can I place an order for ADSP-BF523KBCZ-6C2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF523KBCZ-6C2 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-6C2 reliable?
The price and inventory of ADSP-BF523KBCZ-6C2 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-6C2 is usually 5 days.
3.What payment methods are accepted for ADSP-BF523KBCZ-6C2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF523KBCZ-6C2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF523KBCZ-6C2?
ADSP-BF523KBCZ-6C2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF523KBCZ-6C2 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-6C2?
For technical support, including ADSP-BF523KBCZ-6C2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF523KBCZ-6C2 requirements.
6.How does Aetrix verify that ADSP-BF523KBCZ-6C2 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF523KBCZ-6C2 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-6C2 meets industry standards.
7.What is the process for return or replacement of ADSP-BF523KBCZ-6C2?
All ADSP-BF523KBCZ-6C2 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF523KBCZ-6C2, 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-6C2 part is unused and in its original packaging.
Return procedure for ADSP-BF523KBCZ-6C2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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