BD3822FS-E2 - Dual-Channel Audio I/O IC | ROHM Semiconductor
Référence : BD3822FS-E2 ✓ ActifBD3822FS-E2 Présentation
An audio I/O interface is a type of signal-processing integrated circuit that connects analog audio circuitry to the recording or playback signal path. It belongs to the broader audio IC hierarchy, which includes audio amplifiers, codecs, signal processors, converters, and interface controllers. Unlike a power amplifier that primarily drives speakers or headphones, the BD3822FS-E2 manages signal compatibility, channel processing, and system-level audio routing.
The BD3822FS-E2 provides two audio channels in a compact 32-pin SSOP-A package. This channel count allows a dual-channel audio path in equipment that must support both recording and playback functions. The 0.8 mm package pitch supports high-density board layouts while retaining a package format commonly used in consumer electronics and legacy multimedia systems. Its stated 9 V supply requirement places it in equipment designed around a nominal 9 V analog power rail.
The device is identified as a multi-functional gate and audio I/O interface supporting NTSC and PAL video-system audio applications. This positioning makes it relevant to DVD recorders and related NTSC/PAL audiovisual equipment. Because the interface operates on analog audio signals, board design must account for grounding, signal routing, input/output isolation, and the separation of analog and digital power or return paths where both coexist on the same board.
Typical uses include DVD recorder audio boards, NTSC and PAL video equipment, dual-channel recording interfaces, and legacy consumer audiovisual systems. In these applications, the BD3822FS-E2 can serve as the central audio I/O block when the surrounding circuit requires coordinated handling of left and right audio paths. Its operating-temperature range covers both commercial and industrial ambient conditions, although each assembly still requires normal thermal and signal-integrity validation.
When designing a replacement circuit, verify the complete pin assignment, exposed connections, power sequencing, and external component requirements against the ROHM Semiconductor BD3822FS datasheet before connecting the IC. The package dimensions alone do not establish pin compatibility. In particular, analog input and output routing, supply decoupling, control logic, and any external crystal or timing components must match the original board architecture.
This product record combines the BD3822FS-E2 device identity, package information, documented operating conditions, source links, and application guidance. It also distinguishes the exact -E2 ordering code from the broader BD3822FS family and identifies where engineering verification is required before using the device as a drop-in replacement on an existing PCB.
Alternatives de remplacement direct pour BD3822FS-E2 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesBD3822FS-E2 Valeurs maximales et caractéristiques électriques
| Product Type | Audio signal processor / NTSC-PAL audio I/O interface |
| Manufacturer | ROHM Semiconductor |
| Channel Count | 2 channels |
| Tension d'alimentation | 9 V |
| Température de fonctionnement | -40°C to +85°C |
| Package Type | 32-pin SSOP-A |
| Nombre de broches | 32 pins |
| Package Width | 5.40 mm |
| Lead Pitch | 0.8 mm |
| Package Body Length | 0.213 mm |
| Application Category | DVD recorder audio I/O interface |
| Video Standard Support | NTSC and PAL |
| Circuit Function | Multi-functional gate |
| Type de montage | Surface mount |
Guide de configuration des broches du BD3822FS-E2 0.213 mm
Configuration des broches du BD3822FS-E2 (boîtier 0.213 mm). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour BD3822FS-E2.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
BD3822FS-E2 convient pour 6 applications: DVD Recorder Audio I/O, NTSC Video Equipment, PAL Video Equipment, Dual-Channel Recording Interface, Analog Audio Playback Path, Legacy Multimedia Equipment Repair.
DVD Recorder Audio I/O
The BD3822FS-E2 is suited to the two-channel audio interface section of a DVD recorder because the manufacturer identifies it as an NTSC-PAL audio I/O device for recording and playback. Its nominal 9 V operation aligns with equipment designed around a conventional analog supply rail. When rebuilding such a board, reproduce the original pin assignments, decoupling network, signal-level settings, and analog return routing rather than treating the IC as a generic stereo codec.
NTSC Video Equipment
NTSC-compatible audiovisual equipment can use the BD3822FS-E2 where the board requires the documented two-channel recording and playback interface function. The -40°C to +85°C operating range gives an industrial temperature basis for the IC itself. The surrounding implementation must still preserve signal integrity through controlled grounding, short analog traces, suitable supply bypassing, and separation from switching or digital return currents.
PAL Video Equipment
The BD3822FS-E2 is explicitly associated with NTSC-PAL audio I/O operation, making it applicable to PAL-compatible recording and playback products as well as NTSC systems. Its two-channel architecture supports a conventional left-right audio path without requiring a larger multichannel interface arrangement. Validate the original board’s video-standard-dependent timing or control behavior because the IC is part of an audiovisual system rather than a stand-alone audio amplifier.
Dual-Channel Recording Interface
A dual-channel recording circuit can place the BD3822FS-E2 where left and right audio signals must be coordinated for recording. Its stated 32-pin SSOP-A format and 0.8 mm lead pitch support compact surface-mount layouts, while the nominal 9 V supply suits legacy analog audio boards. The design should use the manufacturer application circuit to establish input and output impedance, signal levels, filtering, and grounding.
Analog Audio Playback Path
The playback section of a DVD recorder or related audiovisual product is a practical use for the BD3822FS-E2 because it is designed for both recording and playing. It can serve as the audio interface element ahead of the appropriate downstream amplifier stage. Keep the analog signal path compact, decouple the 9 V supply close to the device, and avoid routing playback and recording signals through shared high-impedance paths.
Legacy Multimedia Equipment Repair
The BD3822FS-E2 is relevant to repair and modernization work involving older DVD recorder and NTSC-PAL audiovisual products. Its -40°C to +85°C rating and two-channel interface function make it suitable for the stated legacy equipment category. Before installation, compare every numbered pin, supply connection, control input, and external component with the original circuit because a matching 32-pin package alone does not prove electrical equivalence.
Données de référence d'ingénierie pour BD3822FS-E2 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Brand | ROHM Semiconductor |
| Package | 32-pin SSOP-A |
| Channel Count | 2 channels |
| Supply Voltage | 9 V |
| Operating Temperature | -40°C to +85°C |
| Lead Pitch | 0.8 mm |
| Package Width | 5.40 mm |
| Video Standard Support | NTSC and PAL |
| Primary Function | Audio signal processor / NTSC-PAL audio I/O interface |
Principaux différenciateurs
- Purpose-built NTSC-PAL audio recording and playback interface (vs BA3822LS)
- Two-channel signal processing in a compact surface-mount package (vs Generic multichannel audio interface)
- Industrial ambient-temperature capability (vs Consumer-rated audio interface)
Notes de conception
Assign every net from the numbered ROHM Semiconductor BD3822FS datasheet pin table rather than from the physical SSOP outline alone. Keep the 9 V supply bypass capacitor and analog signal components close to their associated pins, and preserve the manufacturer’s recommended return connections. A correct footprint prevents soldering problems, but only a complete pin-by-pin comparison confirms functional compatibility.
Route the two audio channels as matched, short analog paths and maintain a continuous return plane beneath the audio section. Keep switching-regulator traces, digital clocks, and high-current return paths away from input and output nodes. If the board combines analog and digital functions, use the recommended grounding topology from the application circuit and check for ground-potential differences across the interface.
Do not substitute a generic dual-channel audio IC solely because both devices have similar channel counts or a 32-pin package. BD3822FS-E2 is identified as an NTSC-PAL recording and playback audio I/O interface with a nominal 9 V supply. Verify control logic, signal levels, external filters, pin direction, and system timing before approving a replacement to avoid silent channel or synchronization errors.
The device is specified for an ambient operating range of -40°C to +85°C, but that rating does not remove the need for a thermal review. Place the SSOP in accordance with the manufacturer’s land pattern, minimize thermal stress during soldering, and assess enclosure temperature and nearby heat sources. Confirm that board-level temperature at the IC remains within the operating and any absolute-maximum limits stated in the datasheet.
Informations de conformité
The available product and datasheet listings do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable to this product because it is not identified as an automotive-qualified device.
