BD3883FS-E2 - Audio Sound Controller | ROHM Semiconductor
Référence : BD3883FS-E2 ✓ ActifBD3883FS-E2 Présentation
An audio sound controller is a specialized analog integrated circuit that sits between audio sources and power amplifiers. It provides signal-level functions such as volume, tone, balance, surround, and channel routing without performing the final power-amplification stage. The BD3883FS family belongs to the broader audio processor hierarchy: analog sound controller, audio signal-processing IC, interface IC, and semiconductor.
Key features include high signal-to-noise performance obtained through a two-stage configuration for front volume and rear volume. It provides surround and rear volume with soft switching to reduce shock noise during transitions. Volume and tone are implemented with resistance-ladder circuitry for low noise and low distortion, while the BiCOMS process supports low-current operation and energy-saving designs.
Technically, the part is intended to process multiple analog audio channels through external resistors and conventional signal-path components. Its resistance-ladder implementation provides discrete attenuation paths rather than relying on an active gain-control mechanism. The two-stage volume arrangement separates level-control functions into cascaded stages, helping the manufacturer achieve a high signal-to-noise ratio while supporting front, rear, and surround-volume operation.
Typical applications include home-audio systems, stereo receivers, mini hi-fi systems, television audio paths, powered speakers, and other equipment requiring tone and multi-channel volume control. The soft-switch behavior is especially useful when changing listening modes because it helps avoid audible transients. Integration can reduce the number of separate attenuator networks while retaining direct control of several audio-volume functions.
A key design consideration is the analog signal path. Board layout should keep input and output audio traces short, maintain grounding continuity, and place any bypass or filter components close to their associated pins. Before schematic capture, engineers should consult the manufacturer datasheet for the complete pin map, supported supply voltage, channel arrangement, external resistance values, and recommended application circuit.
This page consolidates verified ROHM product information, current distributor pricing, package details, application guidance, and verified replacement analysis. It also clearly identifies where package-specific pin data or confirmed drop-in alternatives are unavailable, helping engineers distinguish sourced facts from parts that still require circuit-level validation.
Alternatives de remplacement direct pour BD3883FS-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 alternativesBD3883FS-E2 Spécifications
| Product Type | Analog audio sound controller |
| Product Function | Front volume, rear volume, surround volume, tone control, and built-in three-band equalization |
| Front Volume Architecture | Two-stage configuration |
| Rear Volume Architecture | Two-stage configuration |
| Volume and Tone Implementation | Resistance-ladder circuit |
| Switching Function | Soft-switch to reduce shock sound |
| Equalizer | Built-in 3-band equalizer |
| Process Technology | BiCOMS |
| Signal Performance | High signal-to-noise, low-noise, and low-distortion operation |
| Power Consumption | Low-consumption current |
| Boîtier | 32-SOP, 5.40 mm width |
| Type de montage | Surface mount |
| Product Status | Active |
Guide de configuration des broches du BD3883FS-E2 32-sop, 5.40 mm width
Configuration des broches du BD3883FS-E2 (boîtier 32-sop, 5.40 mm width). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour BD3883FS-E2.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
BD3883FS-E2 convient pour 6 applications: Home Audio Receiver, Stereo Mini Hi-Fi System, Powered Speaker Controller, Television Audio Signal Path, Multi-Channel Audio Mixer, Car Audio Head Unit.
Home Audio Receiver
The BD3883FS-E2 fits a home-audio receiver because it combines front-volume, rear-volume, surround-volume, tone, and built-in three-band equalization functions in one analog sound controller. Its two-stage front and rear volume arrangement is intended to achieve high signal-to-noise performance, while resistance-ladder circuitry supports low-noise and low-distortion attenuation. Soft switching reduces shock sound when the receiver changes surround or rear listening modes. The exact channel routing and external resistance values should be confirmed from the manufacturer application information before implementation.
Stereo Mini Hi-Fi System
The BD3883FS-E2 is suitable for a compact stereo mini hi-fi system that needs independent level control for front and rear channels plus tone adjustment. The resistance-ladder volume and tone implementation reduces the number of discrete attenuator networks on the analog board, while the BiCOMS process provides low-consumption current for energy-saving consumer equipment. Soft switching can make channel or mode changes less abrupt. The board designer should reproduce the manufacturer-recommended signal topology and preserve a low-impedance path from the controller into the output amplifier.
Powered Speaker Controller
A powered-speaker system can use the BD3883FS-E2 for front, rear, and surround level control ahead of the power-amplifier stage. The two-stage volume architecture is relevant when the design must preserve signal quality over a wide attenuation range, and the resistance-ladder implementation supports low-noise, low-distortion operation. Soft switching helps suppress audible shocks during mode changes. Because this is an analog audio controller rather than a power amplifier, its output must still interface with a suitable amplifier and correctly decoupled supply.
Television Audio Signal Path
The BD3883FS-E2 can support a television or monitor analog-audio path requiring tone balance, three-band equalization, and several volume-controlled outputs. Its integrated control functions reduce discrete passive volume networks, while low-consumption current is beneficial in always-on entertainment equipment. The resistance-ladder tone and volume approach also keeps control passive during signal traversal, supporting low-noise and low-distortion performance. Exact compatibility with the television signal path, including grounding and channel assignment, must be validated using the manufacturer pinout.
Multi-Channel Audio Mixer
The BD3883FS-E2 is applicable to a multi-channel analog mixer that requires front, rear, and surround attenuation with tonal adjustment. The built-in three-band equalizer can support source equalization, while the soft-switch transition helps prevent clicks when the operator changes channel or surround modes. Resistance-ladder volume and tone implementation offers a direct way to control multiple analog levels without relying on active digital gain blocks. The application should follow the manufacturer reference circuit to achieve the intended noise and distortion performance.
Car Audio Head Unit
The BD3883FS-E2 can fit a car-audio head-unit architecture that requires front, rear, and surround volume control, tone adjustment, and built-in three-band equalization. Its soft-switch function is useful when the head unit changes between listening modes, while the BiCOMS process supports a low-consumption implementation. However, the supplied data does not confirm AEC-Q100 qualification or an automotive temperature rating. Engineers must obtain current ROHM qualification and environmental documentation before using the part in a vehicle-grade design.
Données de référence d'ingénierie pour BD3883FS-E2 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Brand | ROHM Semiconductor |
| Package | 32-SOP, 5.40 mm width |
| Product Type | Analog audio sound controller |
| Mounting Type | Surface mount |
| Front Volume Configuration | Two-stage configuration |
| Rear Volume Configuration | Two-stage configuration |
| Equalization | Built-in 3-band equalizer |
| Volume and Tone Circuit | Resistance-ladder circuit |
| Switching Behavior | Soft-switch to reduce shock sound |
| Process Technology | BiCOMS |
| Lifecycle Status | Active |
| Verified Unit Price as of 2026-10-29 | $3.6266 |
Principaux différenciateurs
- Integrated two-stage front and rear volume architecture (vs No verified drop-in alternative was identified)
- Soft switching for surround and rear-volume changes (vs No verified drop-in alternative was identified)
- Resistance-ladder volume and tone implementation (vs No verified drop-in alternative was identified)
- Integrated three-band equalization (vs No verified drop-in alternative was identified)
Notes de conception
Treat the BD3883FS-E2 as part of a continuous low-noise analog signal path. Route front, rear, and surround audio connections away from switching-power nodes and keep the ground return continuous beneath the relevant signal section. Place the manufacturer's recommended input, output, bypass, and feedback components close to their associated pins, and avoid long parallel runs between sensitive audio traces. The supplied verification does not include the full pin map, so pin-specific placement must be checked against the datasheet before PCB release.
Do not substitute an IC merely because it is also described as an audio controller. The BD3883FS-E2 combines a two-stage front and rear volume architecture, resistance-ladder volume and tone paths, surround volume, soft switching, and a built-in three-band equalizer. A substitute must preserve the 32-SOP footprint, pin assignments, control polarity, channel routing, and external component values. No verified drop-in alternative was found in the supplied cross-reference results, so board changes should be treated as a redesign rather than a pin-for-pin replacement.
Use the manufacturer-recommended external resistance values and surrounding network because resistance-ladder attenuation performance depends on the complete signal path, not only on the IC. Maintain short, shielded-in-layout audio traces and appropriate grounding to reduce noise coupling. Soft switching helps reduce shock sound during mode changes, but it does not replace correct analog layout. Validate channel-switch behavior, output level, distortion, and signal-to-noise performance in the assembled system using the manufacturer's recommended test conditions.
ROHM identifies the BiCOMS process and low-consumption current as advantages of the BD3883FS family, but the verified data does not specify the supply-voltage range or quiescent-current maximum. Do not select the device's supply rail from general family expectations. Confirm the permitted input range, decoupling requirements, and startup behavior in the manufacturer datasheet. Using a supply outside the documented limits can impair low-noise performance and reliability even if the circuit appears to operate.
Informations de conformité
The supplied manufacturer and distributor snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is marked not_applicable because this is an audio sound controller rather than an explicitly automotive-qualified device; automotive use still requires current qualification and environmental verification.
