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ROHM Semiconductor BD3812F-E2Sell Excess Inventory
- Part No.:
- BD3812F-E2
- Manufacturer:
- ROHM Semiconductor
- Category:
- Audio Special Purpose
- Package:
- 14-SOIC (0.173", 4.40mm Width)
- Datasheet:
-
BD3812F-E2.pdf
- Description:
- IC AUDIO SIGNAL PROCESSOR 14SOP
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment
- Shipping
Product details
Product Introduction
The BD3812F-E2 is a 2-channel electronic volume designed for high-quality audio control. It provides independent stereo volume adjustment with fine step control, making it suitable for AV and audio front-end designs that require low noise and smooth volume transitions.
ROHM specifies 1.2µVrms residual noise and 131dB dynamic range (IHF-A), supporting premium listening experience in line-level audio paths.
It is controlled via a 2-wire serial interface and can be expanded in multi-chip systems via common bus architectures (per product feature notes).
Key Benefits
1.2µVrms residual noise supports clean audio signal control.
0 to -103dB control with 1dB steps and mute support.
2ch independent volume for balanced stereo tuning.
2-line serial control compatible with common logic levels.
Technical Features
Independent control for L/R channels with fine step size.
Designed for high-end line-level audio control paths.
Supports serial control compatible with 3.3V/5V logic environments.
Technical Specifications
| Parameter | Value / Condition |
|---|---|
| Manufacturer | Rohm Semiconductor |
| Part Number | BD3812F-E2 |
| Function | 2ch Electronic Volume / Audio Signal Processor |
| Residual Noise | 1.2µVrms |
| Dynamic Range | 131dB (IHF-A) |
| Volume Range | 0 to -103dB, 1dB/step, Mute |
| Control Interface | 2-wire serial control |
| Package | SOP-14 (common market listing) |
| Lifecycle Note | Some channels indicate scheduled obsolescence (confirm before new design) |
Equivalent & Manufacturer Information
For substitution, compare: channel count, step size behavior, noise floor, supply rails, and control protocol compatibility.
- ROHM BD3811 / BD3813 / BD3814 / BD3815 family combinations (multi-channel scaling, per feature notes)
- Other 2ch electronic volume ICs with comparable noise and step control
Rohm Semiconductor supplies audio processors, electronic volume ICs, and signal-chain components for consumer and home audio products, focusing on low noise performance and controllable audio routing/volume systems.
Application Field
Line-level volume control for stereo zones or front channels.
Low-noise volume control in active speaker systems.
Stereo preamp volume stage with fine 1dB steps.
Digitally controlled volume adjustment in multi-input audio systems.
Quality Control
For obsolescence-marked parts, confirm date codes and continuity before production.
Packaging/label checks with lot traceability records.
ESD-safe storage and handling to protect IC integrity.
Final PN/qty verification to reduce mix-up risk.
Frequently Asked Questions (FAQ)
Disclaimer
- Specifications
- FAQ
- Purchase & Inquiry
- Attributes
- Property Value
- Manufacturer
- ROHM Semiconductor
- Series:
- -
- Package/Case:
- 14-SOIC (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Part Status:
- Active
- Function:
- Audio Signal Processor
- Applications:
- Consumer Audio
- Interface:
- Serial
- Voltage - Supply:
- 5V ~ 7.3V
- Operating Temperature:
- -20°C ~ 75°C (TA)
- Number of Channels:
- 2
- Specifications:
- -
- Mounting Style:
- Surface Mount
- Grade:
- -
- Category:
- Audio Special Purpose
1) How to order BD3812F-E2 on OEM STOCK GLOBAL LIMITED?
We currently provide peer-to-peer order processing. Submit an RFQ for BD3812F-E2, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
2) How does OEM STOCK GLOBAL LIMITED guarantee that BD3812F-E2 is from the original manufacturer or authorized sources?
Our experienced QC team strictly verifies and tests BD3812F-E2. Only qualified suppliers who pass our audit can list BD3812F-E2 on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
3) Are the price and inventory for BD3812F-E2 accurate?
Pricing and inventory for BD3812F-E2 fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
4) What payment methods are accepted?
Wire Transfer, PayPal, Alipay, WeChat Pay, Credit Card, Western Union, MoneyGram, and Escrow are supported. Note: Some payment methods may incur a handling fee.
5) How is shipping arranged?
We support DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is available. After dispatch, you will receive an email with tracking information. Note: Carriers may take up to 24 hours to show tracking events. Typical transit time: 3–5 days by express; 25–60 days by registered mail.
6) What is the process for return or replacement of BD3812F-E2?
We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with BD3812F-E2, returns/replacements are accepted when:
- Quantity shortages, wrong items, or obvious external defects (e.g., damage, rust) are confirmed by us;
- We are notified within 90 days of delivery;
- The part is unused and in its original, unopened packaging.
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
7) How to get technical support (pinout, datasheet) for BD3812F-E2?
Please contact us for technical documents and support related to ROHM Semiconductor BD3812F-E2, including pin diagrams and datasheets. Our team will respond promptly.
- Step6：Barcode shipping label
- Step5：Packaging box
- Step4：Individual package
- Step3：Anti-static bag
- Step2：Vacuum packaging
- Step1：Prepare product
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