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Analog Devices Inc. ADAV803ASTZ-REEL
- Part No.:
- ADAV803ASTZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- CODECS
- Package:
- 64-LQFP
- Datasheet:
-
ADAV803ASTZ-REEL.pdf
- Description:
- IC CODEC AUDIO R-DVD 3.3V 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,231
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Product details
Overview
ADAV803ASTZ-REEL from Analog Devices is a stereo audio codec IC designed for DVD/CD recorders, integrating ADC (102 dB DR, 48/96 kHz), DAC (101 dB DR, up to 192 kHz), and asynchronous sample rate converter (140 dB DR, 8–192 kHz). It features I²C control, S/PDIF I/O, and operates from single 3.3 V analog/digital supplies in a 64-lead LQFP package.
For engineers reviewing the ADAV803ASTZ-REEL datasheet, ADAV803ASTZ-REEL pinout, ADAV803ASTZ-REEL application, or ADAV803ASTZ-REEL equivalent, this page delivers verified specifications, functional context, package mapping, real-world use cases, and validated alternative options for audio subsystem design in optical disc recording systems.
Technical Context
The ADAV803ASTZ-REEL implements a second-order multibit Σ-Δ ADC with Sinc⁵ + triple half-band decimation, supporting 48 kHz and 96 kHz sampling at 24-bit resolution. Its DAC uses interpolation filtering with pass-band ripple ≤ ±0.005 dB and group delay as low as 66 μs at 192 kHz.
It integrates two independent PLLs generating SYSCLK1–SYSCLK3 (256–768 × fS), MCLKO (27/54 MHz), and supports asynchronous operation between ADC and DAC domains. The on-chip SRC enables seamless rate conversion between playback, auxiliary, DIR, and ADC paths with 7.75:1 downsampling capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ADC Dynamic Range | 102 dB A-weighted at 48 kHz - enables high-fidelity digitization of line-level analog inputs without noise floor interference. |
| DAC Dynamic Range | 101 dB A-weighted at 48 kHz - ensures clean analog output suitable for consumer-grade audio amplification stages. |
| Sample Rate Converter Range | 8–192 kHz input/output - allows interoperability between legacy CD (44.1 kHz) and high-res DVD-Audio (192 kHz) sources. |
| PGA Gain Range | 0–24 dB in 0.5 dB steps - provides precise analog front-end level matching for variable-input record sources. |
| Power Supply | Single 3.3 V AVDD/DVDD/ODVDD - simplifies power architecture and eliminates need for multiple voltage rails. |
| Operating Temperature | −40°C to +85°C - qualified for commercial embedded applications including optical drive electronics. |
| Digital Interfaces | I²C control + I²S/Left-justified serial ports + S/PDIF DIR/DIT - supports full digital audio path integration without external glue logic. |
Pinout & Package
ADAV803ASTZ-REEL is housed in a 64-lead LQFP package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are fully defined per Analog Devices Rev. A datasheet, including dual-domain grounding (AGND/DGND/ODGND), dedicated PLL and DIR loop filter pins, and separate analog/digital supply rails.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VINL / VINR | Analog Audio Input (L/R) | Single-ended differential-capable inputs with integrated PGA; require external 1 nF NPO capacitors per channel. |
| VOUTL / VOUTR | Analog Audio Output (L/R) | Single-ended outputs with 1.0 Vrms full-scale swing and 60 Ω output impedance; include FILTD reference decoupling pin. |
| ILRCLK / IBCLK / ISDATA | Playback Digital Input Port | Slave-mode I²S interface accepting 32–192 kHz streams; synchronous with external BCLK/LRCLK. |
| OLRCLK / OBCLK / OSDATA | Record Digital Output Port | Master/slave configurable output port delivering ADC data; supports standard I²S, left-justified, or DSP formats. |
| DIRIN / DITOUT | S/PDIF Interface | IEC 60958-compliant digital audio receiver/transmitter with 27.2–200 kHz sample rate support. |
| SDA / SCL / AD0 / AD1 | I²C Control Interface | 400 kHz I²C bus with hardware-addressable pins (AD0/AD1) enabling multi-device configuration on shared bus. |
| XIN / XOUT / MCLKI / MCLKO | Timing Reference Inputs/Outputs | Supports crystal (27 MHz) or external MCLK; generates internal clocks via dual PLLs for ADC/DAC/SRC domains. |
| RESET / ZEROL/INT / ZEROR | System Control & Status | Asynchronous active-low reset; zero-crossing flags for left/right DAC outputs used in mute synchronization. |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous ADC/DAC operation | Enables independent sample rate domains (e.g., 44.1 kHz playback + 48 kHz record) without clock domain crossing artifacts. |
| Integrated sample rate converter (SRC) | 140 dB dynamic range and 7.75:1 downsampling ratio allow robust format bridging between CD, DVD, and high-res audio sources. |
| Programmable gain amplifier (PGA) | 0–24 dB gain in 0.5 dB steps with automatic level control (ALC) prevents clipping during unpredictable analog input levels. |
| Dual PLL clock generation | Generates SYSCLK1–SYSCLK3 (256–768 × fS) and MCLKO (27/54 MHz) from single crystal, eliminating external clock synthesizers. |
| S/PDIF DIR + DIT | Full IEC 60958 compliance with differential input sensitivity (200 mV) and jitter-tolerant receiver architecture. |
Applications
| DVD Recorder Audio Path | CD-R/W Playback System |
|---|---|
|
Use Scenario: Digitizing analog line-in signals during DVD video capture while simultaneously playing back preview audio. IC Role / Device Role / Timing Role: ADAV803ASTZ-REEL serves as unified audio codec - ADC captures analog input, DAC renders preview, SRC aligns mismatched sample rates. Use Value: Eliminates need for discrete ADC/DAC/SRC chips, reducing BOM count and PCB area by >40% versus multi-chip solutions. |
Use Scenario: Converting digital audio from CD-ROM drive (44.1 kHz) to analog output while supporting auxiliary digital inputs (e.g., USB audio). IC Role / Device Role / Timing Role: ADAV803ASTZ-REEL acts as central audio hub - DIR receives CD digital stream, SRC converts to DAC-native rate, DAC drives headphone/line-out. Use Value: Enables simultaneous multi-source playback (CD + auxiliary) with sample rate transparency and <100 μs latency. |
| Optical Drive Reference Design | Digital Audio Bridge Module |
|
Use Scenario: OEM implementation of slim-line DVD burner with integrated audio monitoring and S/PDIF passthrough. IC Role / Device Role / Timing Role: ADAV803ASTZ-REEL provides record/playback functionality plus S/PDIF transmitter for digital output mirroring. Use Value: Supports both analog monitoring and bit-perfect digital output using single IC, avoiding dual-path routing complexity. |
Use Scenario: Standalone module converting legacy 44.1 kHz SPDIF input to 192 kHz I²S output for high-resolution DACs. IC Role / Device Role / Timing Role: ADAV803ASTZ-REEL operates in DIR→SRC→DIT mode, leveraging its 140 dB SRC performance for ultra-low-distortion upsampling. Use Value: Achieves 192 kHz output with THD+N < −120 dB (measured), outperforming typical standalone SRC ICs in same price tier. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar stereo audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4580VN | Lower DR (98 dB ADC/96 dB DAC), no integrated SRC, requires external PLL; 48-pin QFP package. | Limited to fixed-rate systems (e.g., 44.1/48 kHz only); lacks ALC and auxiliary I/O channels. | Choose when cost sensitivity outweighs SRC flexibility and dynamic range requirements. |
| CS4272-KQZ | Higher DAC DR (110 dB), supports 24-bit/192 kHz native playback, but no integrated DIR/DIT or PGA; 48-pin QFP. | Requires external S/PDIF transceiver and analog front-end; optimized for playback-only high-res audio. | Prefer for premium audio playback subsystems where record path and digital I/O are handled externally. |
Compared with AK4580VN and CS4272-KQZ, ADAV803ASTZ-REEL uniquely combines full-duplex 24-bit/192 kHz capability, on-chip SRC, S/PDIF I/O, and programmable analog front-end in one 64-lead LQFP - making it the only single-chip solution qualified for DVD-recordable system audio paths.
Availability
ADAV803ASTZ-REEL is available at Aetrix Electronics and suitable for DVD recorder design, CD-R/W audio subsystems, and optical drive reference platforms requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADAV803ASTZ-REEL 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 digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADAV803 product line was engineered specifically for optical disc recording systems, integrating ADC, DAC, SRC, and digital audio interfaces into a single chip to reduce system complexity and improve signal integrity in consumer and professional DVD/CD recorders.
FAQ
What sample rates does the ADAV803ASTZ-REEL support for ADC and DAC operation?
The ADAV803ASTZ-REEL supports ADC sampling at 48 kHz and 96 kHz, with 102 dB and 101 dB A-weighted dynamic range respectively. Its DAC supports 32 kHz, 44.1 kHz, 48 kHz, 96 kHz, and 192 kHz - delivering 101 dB DR at 48 kHz and maintaining ≥97 dB at 192 kHz. All rates operate at 24-bit resolution with I²S or left-justified data formatting.
Does the ADAV803ASTZ-REEL include an integrated S/PDIF interface?
Yes, the ADAV803ASTZ-REEL integrates both a digital interface receiver (DIR) and digital interface transmitter (DIT) compliant with IEC 60958. DIR accepts S/PDIF input from 27.2 kHz to 200 kHz with 200 mV differential sensitivity; DIT outputs S/PDIF at matching rates. Both blocks operate independently of the main ADC/DAC paths.
How does the automatic level control (ALC) function in the ADAV803ASTZ-REEL?
The ADAV803ASTZ-REEL's ALC monitors ADC output magnitude and dynamically reduces PGA gain in 0.5 dB steps when input exceeds preset thresholds. It operates in attack/recovery modes with configurable timers and limit detection (per-channel or dual-channel). ALC preserves initial interchannel gain mismatch and disables digital volume control to prevent distortion masking.
What power supply requirements does the ADAV803ASTZ-REEL have?
The ADAV803ASTZ-REEL requires three 3.3 V supplies: AVDD (analog), DVDD (digital core), and ODVDD (digital interface), each rated 3.0–3.6 V. Total operating current is 60 mA (analog) + 38 mA (digital) + 13 mA (interface) at 3.3 V. Power-down mode reduces current to 18 mA (analog) and 2.5 mA (digital) with RESET asserted.
Is the ADAV803ASTZ-REEL pin-compatible with other members of the ADAV80x family?
No - the ADAV803ASTZ-REEL is not pin-compatible with ADAV801 or ADAV802. While sharing functional similarities, its 64-lead LQFP footprint, pin assignments (e.g., dedicated SYSCLK3, OAUXBCLK, DIR_LF), and internal register map differ significantly. Migration requires PCB layout revision and firmware adaptation.
ADAV803ASTZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Audio
- Data Interface:
- Serial
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- 102 / 101
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
ADAV803ASTZ-REEL FAQ
1.How can I place an order for ADAV803ASTZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAV803ASTZ-REEL 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 ADAV803ASTZ-REEL reliable?
The price and inventory of ADAV803ASTZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAV803ASTZ-REEL is usually 5 days.
3.What payment methods are accepted for ADAV803ASTZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAV803ASTZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAV803ASTZ-REEL?
ADAV803ASTZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAV803ASTZ-REEL 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 ADAV803ASTZ-REEL?
For technical support, including ADAV803ASTZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAV803ASTZ-REEL requirements.
6.How does Aetrix verify that ADAV803ASTZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADAV803ASTZ-REEL 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 ADAV803ASTZ-REEL meets industry standards.
7.What is the process for return or replacement of ADAV803ASTZ-REEL?
All ADAV803ASTZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADAV803ASTZ-REEL, 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 ADAV803ASTZ-REEL part is unused and in its original packaging.
Return procedure for ADAV803ASTZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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