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Analog Devices Inc. ADAV4622BSTZ
- Part No.:
- ADAV4622BSTZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Audio Special Purpose
- Package:
- 80-LQFP
- Datasheet:
-
ADAV4622BSTZ.pdf
- Description:
- IC AUDIO SIGNAL PROCESSOR 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,881
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Product details
Overview
ADAV4622BSTZ from Analog Devices is a high-integration audio processor IC designed for advanced TV systems, featuring multistandard broadcast Sound IF demodulation (NICAM, A2, BTSC, EIAJ), stereo decoding, 24-bit ADC/DAC with 95 dB/94 dB DNR, 4-channel I²S digital inputs, S/PDIF I/O, and PWM speaker outputs. It supports audio/video synchronization up to 200 ms and operates from 3.3 V (analog), 1.8 V (core), and 3.3 V (interface) supplies.
For engineers reviewing the ADAV4622BSTZ datasheet, ADAV4622BSTZ pinout, ADAV4622BSTZ application, or ADAV4622BSTZ equivalent, this page delivers verified technical context, real-world timing and dynamic range specs, LQFP-80 package mapping, confirmed alternative audio processors for ATV subsystems, and supply support for volume production in DTV-ready TVs and HTIB platforms.
Technical Context
The ADAV4622BSTZ integrates a dedicated SIF processor with automatic broadcast standard detection across NICAM (BG/DK/I/L), A2 (BG/DK/M), BTSC (M/N), and EIAJ (M), plus a fully programmable 28-bit audio processing engine. Its analog front-end uses continuous-time multibit Σ-Δ architecture with 95 dB DNR ADCs and 94 dB DNR DACs, while digital I/O includes four stereo I²S inputs, one stereo I²S output, S/PDIF mux-capable I/O, and eight PWM outputs supporting digital amplifiers.
It implements on-chip sample rate conversion (SRC) with two SRC blocks - one 6-channel and one stereo - accepting arbitrary input rates from 5 kHz to 50 kHz. The device loads a default TV audio flow on reset, including matrix switching, automatic volume control, dynamic bass, multiband EQ, and stereo delay memory, and supports custom flows via SigmaStudio™ graphical programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| SIF Standards | NICAM (BG/DK/I/L), A2 (BG/DK/M), BTSC (M/N), EIAJ (M) - enables global analog broadcast compatibility in single-chip ATV designs. |
| ADC Performance | 95 dB A-weighted DNR, 24-bit resolution, 4-channel stereo input - ensures high-fidelity digitization of analog audio sources with low noise floor. |
| DAC Performance | 94 dB A-weighted DNR, 24-bit resolution, 8-channel auxiliary analog output - delivers clean, low-distortion line-level audio to speakers or external amps. |
| PWM Outputs | 8-channel (PWM1A–PWM4B), 384 kHz switching frequency, 98 dB DNR - directly drives Class-D amplifiers without external modulators. |
| Digital I/O | 4× stereo I²S inputs, 1× stereo I²S output, S/PDIF I/O with input mux - supports flexible routing of baseband digital audio from tuners, media processors, or SoCs. |
| Sample Rate Conversion | One 6-channel + one stereo SRC, 5–50 kHz input range - eliminates clock domain mismatches between disparate audio sources in mixed-signal TV systems. |
| Supply Voltages | AVDD = 3.3 V, DVDD = 1.8 V, ODVDD = 3.3 V - enables efficient power domain partitioning and low-noise analog/digital separation. |
Pinout & Package
ADAV4622BSTZ is housed in an 80-lead LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad. Pin functions are validated per Analog Devices Rev. B datasheet (pages 13–20), including dedicated SIF analog inputs (SIF_IN1/SIF_IN2), reference pins (SIF_REFP/REFCM/REFN), PWM outputs (PWM1A–PWM4B), I²S/SPDIF digital interfaces, and dual headphone amplifier outputs (HPOUT1L/R, HPOUT2L/R).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SIF_IN1 / SIF_IN2 | Sound IF differential analog inputs | Accept 10 MHz FM/AM broadcast IF signals; support PGA gain settings up to 20 dB for wide dynamic range reception. |
| PWM1A–PWM4B (8 pins) | Class-D PWM speaker outputs | Drive digital amplifiers directly; each pair (e.g., PWM1A/PWM1B) forms a full-bridge channel with 384 kHz carrier. |
| SDIN0–SDIN3 | Stereo I²S digital audio inputs (4 channels) | Support independent left/right data streams at sample rates from 5–50 kHz; routed through integrated SRC blocks. |
| SPDIF_OUT / SDO1 | S/PDIF digital audio output | Transmits encoded PCM or compressed audio; shares pin with serial data output (SDO1) in alternate modes. |
| HPOUT1L/R, HPOUT2L/R | Integrated headphone amplifier outputs | Deliver 31 mW rms into 32 Ω; include DC bias at 1.53 V and 93 dB DNR for low-noise personal listening. |
| MCLKI/XIN, XOUT | Master clock oscillator interface | Accept external 3.072–24.576 MHz crystal or clock; internal PLL generates system clocks for ADC/DAC/SRC blocks. |
Key Features
| Feature | Design Value |
|---|---|
| Automatic SIF standard detection | Identifies NICAM/A2/BTSC/EIAJ broadcast formats in real time without host intervention, reducing firmware complexity in global TV designs. |
| 200 ms stereo audio delay memory | Enables precise A/V sync compensation for variable video pipeline latency - critical for HDMI-connected displays and broadcast decoders. |
| Graphical audio flow programming (SigmaStudio™) | Allows OEMs to implement proprietary audio enhancements (e.g., spatial enhancement, voice clarity) without low-level DSP coding. |
| Integrated 6-channel + stereo SRC | Eliminates need for external sample rate converters when interfacing tuners, SoCs, or media processors operating at mismatched clock domains. |
| Dual headphone outputs with amplifiers | Provides two independent stereo headphone paths with 93 dB DNR and 31 mW drive capability - supports multi-user or secondary audio output features. |
Applications
| DTV-Ready Television Audio Subsystem | Home Theater in a Box (HTIB) |
|---|---|
Use Scenario: Integrated audio processing in iDTVs supporting analog broadcast (PAL/SECAM/NTSC) and digital baseband inputs. IC Role / Device Role / Timing Role: Central audio hub performing SIF demodulation, stereo decoding, ADC/DAC conversion, SRC, and PWM generation. Use Value: Single-chip solution reduces BOM count and PCB area while delivering certified audio performance for regional broadcast standards. | Use Scenario: Compact all-in-one audio system combining tuner, decoder, and multi-channel amplifier in consumer HTIB units. IC Role / Device Role / Timing Role: Audio processor handling analog TV audio, digital media playback, and HDMI audio return channel (ARC) preprocessing. Use Value: Enables simultaneous processing of multiple audio sources (tuner, Blu-ray, streaming) with synchronized outputs to 5.1 or 7.1 speaker arrays. |
| DVD Recorder Audio Postprocessing | Analog Broadcast Capability for Smart TVs |
Use Scenario: High-fidelity audio capture and re-encoding during DVD recording from analog broadcast or composite video sources. IC Role / Device Role / Timing Role: ADC captures analog audio, applies dynamic range compression and equalization, then encodes via SPDIF or I²S to recorder SoC. Use Value: Preserves broadcast audio quality during digitization and enables real-time metadata-aware processing (e.g., SAP channel extraction). | Use Scenario: Adding legacy analog broadcast support to modern smart TVs lacking native tuner hardware. IC Role / Device Role / Timing Role: External audio coprocessor receiving SIF from RF tuner module and delivering decoded stereo or NICAM audio to main SoC. Use Value: Extends product lifecycle and market reach in regions where analog broadcast remains active alongside digital transition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar broadcast audio processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AK4182A | 24-bit stereo ADC/DAC only; no SIF demodulator, no broadcast decoding, no PWM outputs - requires external tuner and processor. | Targeted at digital-only audio I/O expansion, not broadcast TV audio subsystems. | Choose AK4182A only when SIF processing is handled externally and only high-performance ADC/DAC is needed. |
| CS495314-CQZ | Dedicated audio DSP with broadcast decoding support but no integrated SIF ADC or PWM outputs - requires external analog front-end and amplifier drivers. | Used in premium AV receivers where algorithm flexibility outweighs integration; lacks direct SIF-to-speaker path. | Select CS495314-CQZ when custom audio algorithms dominate design and external signal conditioning is acceptable. |
Compared with AK4182A and CS495314-CQZ, the ADAV4622BSTZ uniquely combines SIF demodulation, broadcast decoding, 24-bit ADC/DAC, SRC, and PWM outputs in one LQFP-80 package - eliminating up to 5 discrete components in ATV audio signal chains.
Availability
ADAV4622BSTZ is available at Aetrix Electronics and suitable for DTV-ready television audio subsystems, home theater in a box (HTIB) systems, DVD recorders, and analog broadcast upgrade modules requiring stable component supply and long-term industrial availability.
Supply support for ADAV4622BSTZ 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, with over 50 years of innovation in precision signal chain solutions.
The ADAV4622BSTZ belongs to Analog Devices' Advantiv® family of audio processors, engineered specifically for advanced television and consumer audio applications demanding multistandard broadcast compatibility, low-latency audio/video sync, and high-fidelity signal processing.
FAQ
What broadcast audio standards does the ADAV4622BSTZ support?
The ADAV4622BSTZ supports NICAM (BG/DK/I/L), A2 (BG/DK/M), BTSC (M/N), and EIAJ (M) broadcast standards with automatic detection and demodulation. Each standard is validated per datasheet test conditions - for example, A2 (DK) achieves 74 dB dynamic range and −66 dB THD+N, while NICAM (I) delivers 72 dB dynamic range and 73 dB stereo separation. These capabilities are implemented in hardware within the SIF processor block of the ADAV4622BSTZ.
Does the ADAV4622BSTZ include integrated headphone amplifiers?
Yes, the ADAV4622BSTZ integrates four headphone amplifier channels (HPOUT1L/R and HPOUT2L/R), each capable of delivering 31 mW rms into a 32 Ω load with 93 dB A-weighted DNR and −83 dB THD+N. These amplifiers feature 1.53 V DC bias and are independently configurable - a key differentiator enabling dual-user headphone output or secondary audio monitoring in TV and HTIB applications using the ADAV4622BSTZ.
What is the function of the PWM outputs on the ADAV4622BSTZ?
The ADAV4622BSTZ provides eight PWM output pins (PWM1A–PWM4B) configured as four full-bridge channels, operating at 384 kHz with 98 dB DNR and −78 dB THD+N. These outputs directly drive Class-D speaker amplifiers without external modulation circuitry, simplifying system design and improving efficiency. This PWM capability is intrinsic to the ADAV4622BSTZ's architecture and replaces traditional analog line-level outputs in modern digital amplifier-based TV and HTIB systems.
Can the ADAV4622BSTZ perform sample rate conversion?
Yes, the ADAV4622BSTZ integrates two dedicated sample rate converters: one 6-channel SRC and one stereo SRC, both supporting input sample rates from 5 kHz to 50 kHz. These SRCs operate independently and are used to align asynchronous digital audio streams - for example, converting tuner output (44.1 kHz) to SoC processing rate (48 kHz). This functionality is built into the ADAV4622BSTZ and requires no external components or host CPU intervention.
What package type and pin count does the ADAV4622BSTZ use?
The ADAV4622BSTZ is supplied in an 80-lead LQFP package (12 mm × 12 mm, 0.5 mm pitch) with exposed thermal pad, as confirmed by Analog Devices Rev. B datasheet Figure 9 and Ordering Guide. This package supports standard surface-mount assembly and provides thermal performance (θJA = 38.1°C/W) suitable for sustained operation in enclosed TV chassis. All pin functions - including SIF inputs, PWM outputs, and I²S interfaces - are mapped to this specific LQFP-80 footprint in the ADAV4622BSTZ.
ADAV4622BSTZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- SigmaDSP®
- Package/Case:
- 80-LQFP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Audio Signal Processor
- Applications:
- Consumer Audio
- Number of Channels:
- 4
- Interface:
- I2C
- Voltage - Supply:
- 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Specifications:
- 24 b
- Mounting Type:
- Surface Mount
- Grade:
- -
ADAV4622BSTZ FAQ
1.How can I place an order for ADAV4622BSTZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADAV4622BSTZ 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 ADAV4622BSTZ reliable?
The price and inventory of ADAV4622BSTZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAV4622BSTZ is usually 5 days.
3.What payment methods are accepted for ADAV4622BSTZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAV4622BSTZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADAV4622BSTZ?
ADAV4622BSTZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADAV4622BSTZ 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 ADAV4622BSTZ?
For technical support, including ADAV4622BSTZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAV4622BSTZ requirements.
6.How does Aetrix verify that ADAV4622BSTZ is sourced from the original manufacturer or authorized distributors?
All ADAV4622BSTZ 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 ADAV4622BSTZ meets industry standards.
7.What is the process for return or replacement of ADAV4622BSTZ?
All ADAV4622BSTZ units undergo pre-shipment inspection (PSI). If there is an issue with ADAV4622BSTZ, 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 ADAV4622BSTZ part is unused and in its original packaging.
Return procedure for ADAV4622BSTZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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