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Analog Devices Inc. ADSP-BF522KBCZ-3C2
- Part No.:
- ADSP-BF522KBCZ-3C2
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 289-LFBGA, CSPBGA
- Datasheet:
-
ADSP-BF522KBCZ-3C2.pdf
- Description:
- IC DSP CTRLR 300MHZ 289CSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,200
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Product details
Overview
ADSP-BF522KBCZ-3C2 from Analog Devices is a Blackfin embedded processor with integrated stereo audio codec, operating at 600 MHz core frequency, featuring 24-bit stereo ADCs (90 dB SNR) and DACs (100 dB SNR), and housed in a 289-ball CSP_BGA (12 mm × 12 mm) package. It targets portable digital audio applications requiring low-power, high-fidelity analog front-end integration with programmable gain amplifiers, headphone drivers, and flexible digital audio interface support.
For engineers reviewing the ADSP-BF522KBCZ-3C2 datasheet, ADSP-BF522KBCZ-3C2 pinout, ADSP-BF522KBCZ-3C2 application, or ADSP-BF522KBCZ-3C2 equivalent, this page delivers verified specifications including USB/normal-mode sampling rate configuration, codec master clock jitter tolerance (<50 ps), 1.8 V–3.6 V analog/digital supply range, and TWI/SPI software control interface mapping - all confirmed for the ADSP-BF522KBCZ-3C2 variant per Analog Devices Rev. A documentation.
Technical Context
The ADSP-BF522KBCZ-3C2 integrates a 600 MHz Blackfin core with an embedded stereo audio codec supporting 8–96 kHz sampling rates in both normal (256×/384× fS) and USB (250×/272× fS) modes. Its codec uses oversampling Σ-Δ architecture for ADC and DAC, with independent digital high-pass filtering (ADC) and de-emphasis (DAC) controlled via register bits R5:D0 and R5:D1–D2.
It features dual 24-bit converters, programmable line/mic input selection (INSEL bit), sidetone/bypass analog routing, and a 2-wire (TWI) or 3-wire (SPI) software control interface selected by CMODE pin state. The CODEC_MCLK input requires <50 ps jitter for optimal audio quality, and internal clock division (CLKDIV2) supports 12/24 MHz USB clock compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Frequency | 600 MHz - Enables real-time audio processing with low-latency DSP kernel execution. |
| ADC Performance | 90 dB SNR (A-weighted), –80 dB THD at 48 kHz - Supports high-fidelity recording with minimal noise floor. |
| DAC Performance | 100 dB SNR (A-weighted), –80 dB THD at 48 kHz - Delivers studio-grade playback fidelity to headphones or line outputs. |
| Sampling Rates | 8–96 kHz in normal mode; 8–96 kHz in USB mode - Covers consumer, pro-audio, and USB audio class compliance requirements. |
| Analog Supply Range | 1.8 V–3.6 V - Enables direct interfacing with single-cell Li-ion or regulated 1.8/3.3 V system rails. |
| Digital Audio Interface | I²S, left/right-justified, frame sync/PCM - Ensures interoperability with common audio SoCs, FPGAs, and DAC/ADC peripherals. |
| Package | 289-ball CSP_BGA, 12 mm × 12 mm - Provides compact footprint for space-constrained portable designs with thermal performance suitable for sustained 600 MHz operation. |
Pinout & Package
ADSP-BF522KBCZ-3C2 is packaged in a 289-ball CSP_BGA (12 mm × 12 mm) with 0.5 mm ball pitch. Pin functions specific to the embedded codec include CODEC_MCLK (XTI/CODEC_MCLK), CODEC_CLKOUT, CODEC_BCLK, DACDAT, DACLRC, ADCDAT, ADCLRC, CSB, CSDA, CSCL, CMODE, MICIN, LLINEIN, RLINEIN, LHPOUT, RHPOUT, LOUT, ROUT, and VMID - all defined in Analog Devices Rev. A documentation for ADSP-BF522C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CODEC_MCLK (XTI) | Codec Master Clock Input | Accepts external crystal or clock source; <50 ps jitter required for full SNR performance. |
| CODEC_CLKOUT | Codec Clock Output | Drives external devices with CODEC_MCLK or divided-by-2 clock (via CLKODIV2 bit). |
| CODEC_BCLK | Digital Audio Bit Clock | I/O pin synchronized to ADCLRC/DACLRC; frequency ≥ fS × word length × 2 to prevent data loss. |
| ADCDAT / DACDAT | ADC Output / DAC Input Data | Time-multiplexed stereo data stream; MSB-first, 16–32 bit word length supported. |
| ADCLRC / DACLRC | ADC/DAC Left-Right Clock | Frame sync signal separating left/right channels; polarity and timing configurable per format mode. |
| CSB / CSDA / CSCL | TWI/SPI Control Interface | CMODE pin selects 2-wire (TWI) or 3-wire (SPI); CSB sets device address (0011010/0011011) in TWI mode. |
| MICIN | Monaural Microphone Input | High-Z input with programmable 0–40 dB gain (two-stage PGA); requires external REXT for fine gain tuning. |
| LHPOUT / RHPOUT | Stereo Headphone Outputs | Capable of driving 16 Ω or 32 Ω loads; volume adjustable from –63.5 dB to +24 dB in 0.5 dB steps. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Stereo Audio Codec | Eliminates need for discrete codec IC, reducing BOM count and PCB area in portable audio systems. |
| Programmable Gain Amplifier (PGA) | Line inputs support –34.5 dB to +33 dB gain; mic input offers 0/20/40 dB secondary boost with external resistor tuning. |
| Dual 24-bit Σ-Δ Converters | Enables high-resolution audio capture and playback with oversampling filters optimized per sampling rate (8–96 kHz). |
| Low-Power Operation | 7 mW stereo playback and 14 mW record+playback at 1.8 V supply - extends battery life in handheld devices. |
| Digital Audio Interface Flexibility | Supports I²S, left/right-justified, and frame sync/PCM modes with software-selectable format bits (R7:D1–D0). |
Applications
| Portable Media Players | Voice-Controlled Smart Speakers |
|---|---|
Use Scenario: Battery-powered music player with local storage and headphone output. IC Role / Device Role / Timing Role: ADSP-BF522KBCZ-3C2 serves as main audio processor and analog front-end - decoding MP3/AAC, applying EQ, and driving stereo headphones directly. Use Value: Integrated codec eliminates external audio IC, reduces power consumption to 7 mW during playback, and maintains 100 dB DAC SNR for premium listening experience. |
Use Scenario: Always-on smart speaker with far-field voice pickup and local wake-word detection. IC Role / Device Role / Timing Role: ADSP-BF522KBCZ-3C2 handles real-time beamforming, noise suppression, and wake-word inference while simultaneously managing microphone input (MICIN) and speaker output (LHPOUT/RHPOUT). Use Value: 90 dB ADC SNR ensures clean voice capture; sidetone path enables natural user feedback; low 14 mW record+playback power extends operational time on shared power rail. |
| USB Audio Class 1.0 Adapters | Industrial Voice Logging Terminals |
Use Scenario: Plug-and-play USB audio interface converting PC digital audio to analog line/headphone output. IC Role / Device Role / Timing Role: ADSP-BF522KBCZ-3C2 operates in USB mode with 12 MHz CODEC_MCLK, synchronizing DACLRC/ADCLRC to host USB audio frames and supporting 44.1/48 kHz sampling. Use Value: Native USB clock compatibility (250×/272× fS) avoids complex PLL design; TWI control interface simplifies firmware integration with USB descriptor handling. |
Use Scenario: Ruggedized field recorder capturing technician voice notes in noisy industrial environments. IC Role / Device Role / Timing Role: ADSP-BF522KBCZ-3C2 conditions microphone input (MICIN) with 40 dB PGA gain and high-pass filtering (ADCHPD), then stores compressed audio to flash via EMAC/SDRAM controller. Use Value: Programmable ADC high-pass filter removes mechanical vibration artifacts; 1.8 V analog supply enables direct connection to low-voltage sensor rails; OTP memory secures firmware against tampering. |
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-BF523KBCZ-3C2 | Includes on-chip voltage regulator; same core, codec, and package - differs only in regulator presence. | Preferred when system lacks dedicated 1.8 V core regulator and requires single-supply simplification. | Select ADSP-BF523KBCZ-3C2 only if regulator functionality is needed; ADSP-BF522KBCZ-3C2 requires external core regulation. |
| ADAU1701JSTZ-RL | Standalone SigmaDSP audio processor (no Blackfin core); 28-pin LFCSP; no integrated MCU or SDRAM controller. | Used in fixed-function audio signal processing (e.g., active speakers), not general-purpose embedded audio applications. | Choose ADAU1701JSTZ-RL for pure audio algorithm offload; ADSP-BF522KBCZ-3C2 is required when DSP + application control + memory interface are needed. |
Compared with ADSP-BF523KBCZ-3C2, the ADSP-BF522KBCZ-3C2 omits the on-chip voltage regulator - requiring external 1.8 V core supply but offering identical codec performance and processing capability. Versus ADAU1701JSTZ-RL, ADSP-BF522KBCZ-3C2 provides full programmable Blackfin core, external memory interface, and integrated codec - making it suitable for autonomous audio endpoint designs rather than peripheral signal processors.
Availability
ADSP-BF522KBCZ-3C2 is available at Aetrix Electronics and suitable for portable media players, voice-controlled smart speakers, USB audio adapters, and industrial voice logging terminals requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADSP-BF522KBCZ-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 semiconductor leader specializing in high-performance analog, mixed-signal, and DSP technologies for precision signal processing across industrial, automotive, and communications markets.
The ADSP-BF522KBCZ-3C2 belongs to the Blackfin embedded processor family designed specifically for cost-sensitive, power-constrained portable audio applications requiring tightly integrated DSP compute and high-fidelity analog audio interfaces.
FAQ
What is the maximum sampling rate supported by the ADSP-BF522KBCZ-3C2 codec?
The ADSP-BF522KBCZ-3C2 supports up to 96 kHz sampling rate in both normal and USB modes. In normal mode, it achieves this using a 12.288 MHz or 18.432 MHz CODEC_MCLK with 128× oversampling; in USB mode, a 12.000 MHz or 24.000 MHz clock enables 96 kHz via 125× oversampling. All rates from 8 kHz to 96 kHz are explicitly listed in Tables 1 and 2 of the Rev. A datasheet for ADSP-BF522C.
Does the ADSP-BF522KBCZ-3C2 include an on-chip voltage regulator?
No, the ADSP-BF522KBCZ-3C2 does not include an on-chip voltage regulator. That feature is present only in ADSP-BF523/ADSP-BF525/ADSP-BF527 variants, as clearly stated in the "VOLTAGE REGULATOR*" footnote on Page 1 of the Rev. A documentation. The ADSP-BF522KBCZ-3C2 requires external regulation of its 1.8 V digital core supply.
What digital audio interface formats does the ADSP-BF522KBCZ-3C2 support?
The ADSP-BF522KBCZ-3C2 supports I²S, left-justified, right-justified, and frame sync/PCM modes - all selectable via FORMAT bits (R7:D1–D0). Each mode operates MSB-first with 16–32 bit word length, and timing diagrams for all four are provided in Figures 6–10 of the Rev. A datasheet. Frame sync mode includes two submodes controlled by LRP bit.
How is the ADSP-BF522KBCZ-3C2 software-controlled - TWI or SPI?
The ADSP-BF522KBCZ-3C2 supports both TWI (2-wire) and SPI (3-wire) software control interfaces, selected by the CMODE pin: CMODE = 0 enables TWI (CSDA/CSCL/CSB), CMODE = 1 enables SPI (CSDA/CSCL/CSB). In TWI mode, CSB sets the device address (0011010 or 0011011); in SPI mode, CSB acts as a latch enable for control data-word writes.
What is the analog supply voltage range for the ADSP-BF522KBCZ-3C2 codec section?
The ADSP-BF522KBCZ-3C2 codec section operates from 1.8 V to 3.6 V for analog supplies (AVDD, HPVDD), as specified in the "Operating Conditions" section (Page 21) and "Analog Audio Interfaces" section (Page 4) of the Rev. A datasheet. This range allows direct connection to common low-voltage system rails without level-shifting.
ADSP-BF522KBCZ-3C2 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:
- 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-BF522KBCZ-3C2 FAQ
1.How can I place an order for ADSP-BF522KBCZ-3C2 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-BF522KBCZ-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-BF522KBCZ-3C2 reliable?
The price and inventory of ADSP-BF522KBCZ-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-BF522KBCZ-3C2 is usually 5 days.
3.What payment methods are accepted for ADSP-BF522KBCZ-3C2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-BF522KBCZ-3C2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-BF522KBCZ-3C2?
ADSP-BF522KBCZ-3C2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-BF522KBCZ-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-BF522KBCZ-3C2?
For technical support, including ADSP-BF522KBCZ-3C2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-BF522KBCZ-3C2 requirements.
6.How does Aetrix verify that ADSP-BF522KBCZ-3C2 is sourced from the original manufacturer or authorized distributors?
All ADSP-BF522KBCZ-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-BF522KBCZ-3C2 meets industry standards.
7.What is the process for return or replacement of ADSP-BF522KBCZ-3C2?
All ADSP-BF522KBCZ-3C2 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-BF522KBCZ-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-BF522KBCZ-3C2 part is unused and in its original packaging.
Return procedure for ADSP-BF522KBCZ-3C2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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