BD3825FS-E2 - 2-Channel Audio Switch | ROHM Semiconductor
MPN: BD3825FS-E2 ✓ सक्रियBD3825FS-E2 अवलोकन
The BD3825FS-E2 belongs to the audio switch and audio interface IC category. An audio switch IC is a signal-routing semiconductor that connects, disconnects, or selects audio paths within an electronic system. This type of interface IC sits between audio sources, amplifiers, recorders, and system control logic. It is different from an audio amplifier, which increases signal power, because the BD3825FS-E2 primarily controls signal selection and routing.
ROHM identifies the BD3825FS as a device for PAL DVD recorders. The related application information states that the switch and frequency-synthesis outputs are controlled by the BD3825FS, while the device is controlled through the I2C bus of the BH7624KS2 video-signal LSI. When used independently, pins 1, 2, 6, 7, 10, and 12 must be controlled by the microcontroller. This makes the part suitable for systems that need programmable selection of multiple audio input lines.
The BD3825FS-E2 is packaged in a 24-SSOP-A configuration. Its compact surface-mount format supports dense consumer-electronics layouts while providing separate control and signal-routing connections. The -E2 ordering suffix identifies the exact ROHM catalog variant used in distributor listings. A 24-SOP listing identifies the body width as 0.213 inches, equivalent to 5.40 mm, with a 0.8 mm lead pitch.
The switch is intended for DVD recorder audio interfaces and related multimedia equipment. In a typical implementation, a controller writes the required routing state to the BD3825FS, which then selects the appropriate audio path for recording, playback, or external input. The design must account for the device-specific control pins, pull-down requirements, signal levels, and the exact pin-assignment table in the manufacturer datasheet.
This product page focuses on BD3825FS-E2 identification, package information, application fit, and practical selection considerations. It is intended to help engineers locate the correct datasheet, verify footprint compatibility, and determine whether the device matches the audio-routing architecture used in DVD recorder and related equipment.
के लिए ड्रॉप-इन विकल्प BD3825FS-E2 — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
इस उत्पाद के लिए कोई drop-in alternatives उपलब्ध नहीं।
विकल्प अनुरोध करेंBD3825FS-E2 Maximum Ratings और Electrical Characteristics
| Device Type | Audio switch IC |
| Channel Count | 2 channels |
| Application | DVD recorder audio I/O interface |
| पैकेज | 24-SSOP-A |
| Lead Count | 24 pins |
| Lead Pitch | 0.8 mm |
| Body Width | 5.40 mm |
| Body Width (Imperial) | 0.213 inch |
| माउंटिंग प्रकार | Surface mount |
| Control Interface | I2C-BUS control through BH7624KS2 |
| Independent Microcontroller Control Pins | Pins 1, 2, 6, 7, 10, and 12 |
| Pull-Down Requirement | Pins 18 and 24 pulled down with 10 kOhm resistors |
| Signal Path | SW and FS outputs |
| Manufacturer | ROHM Semiconductor |
| Ordering Code | BD3825FS-E2 |
BD3825FS-E2 24-ssop-a पिन कॉन्फ़िगरेशन गाइड
BD3825FS-E2 (24-ssop-a पैकेज) के लिए पिन कॉन्फ़िगरेशन। पिन नंबरिंग, फ़ंक्शन और कनेक्शन आरेख निर्माता डेटाशीट में परिभाषित हैं। सटीक फुटप्रिंट और सोल्डरिंग दिशानिर्देशों के लिए इसे देखें।
इसके लिए कोई विस्तृत pinout data उपलब्ध नहीं: BD3825FS-E2.
देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।
सामान्य अनुप्रयोग
BD3825FS-E2 के लिए उपयुक्त है 6 अनुप्रयोगs: DVD Recorder Audio Routing, PAL Video Recorder Interface, Programmable Audio Input Selector, Multimedia Audio Input Interface, Recording System Analog Routing, Consumer Audio Equipment Control.
DVD Recorder Audio Routing
The BD3825FS-E2 fits the audio-signal switching role described for PAL DVD recorders because it provides two channels of audio routing in a compact 24-SSOP-A package. The device can select input lines under commands from the BH7624KS2 video-signal LSI, allowing the recorder to change audio paths for recording and playback. Its 0.8 mm lead pitch helps reduce board width, while the documented control-pin arrangement gives the system designer clear points for firmware-driven routing. Confirm signal amplitudes, switch-on resistance, and timing directly in the manufacturer datasheet before finalizing the analog path.
अनुशंसित
PAL Video Recorder Interface
The BD3825FS-E2 is specifically identified for PAL DVD-recorder systems, where programmable audio selection must coordinate with video-signal processing. Its I2C-controlled operating concept supports integration with the BH7624KS2 video-signal LSI, reducing the number of discrete routing decisions required by the main controller. The 24-SSOP-A footprint keeps the device compact while exposing dedicated control and audio-routing pins. Use the exact application schematic and pin table when arranging the recorder motherboard, especially around pins 18 and 24 and the pins that require direct microcontroller control in standalone operation.
अनुशंसित
Programmable Audio Input Selector
The BD3825FS-E2 can serve as a programmable audio input selector when an equipment design must route multiple stereo-related lines through a controlled interface. Two channels support paired audio routing, while external control logic determines the selected source. In a design based on the BH7624KS2 arrangement, the video-signal LSI issues I2C commands; in a standalone arrangement, the microcontroller must control the six identified pins. This application requires careful definition of signal direction, mute behavior, and default power-up states so the switch does not route an unintended source into the recording chain.
अनुशंसित
Multimedia Audio Input Interface
The BD3825FS-E2 is suitable for a multimedia audio input interface that must connect recorder, playback, or external source lines to a common downstream audio path. Its two-channel architecture simplifies balanced stereo routing, while the I2C-oriented control concept allows system firmware to change the selected path as operating modes change. The 24-SSOP-A package is useful where a long narrow footprint is available. Designers should still verify the device's electrical limits, channel isolation, switching behavior, and control timing against the manufacturer datasheet rather than inferring those values from the application description.
अनुशंसित
Recording System Analog Routing
In a recording system, the BD3825FS-E2 can provide controlled analog routing between audio sources and a recorder-facing channel pair. The part's two-channel structure aligns with left and right signal paths, while controller-driven selection supports transitions between operating states. ROHM's application information identifies SW and FS outputs and explains coordination with the BH7624KS2, making the device particularly relevant to established DVD-recorder architectures. Board implementation should preserve the recommended pull-down network, route sensitive audio traces away from switching nodes, and confirm grounding and decoupling requirements from the full datasheet.
अनुशंसित
Consumer Audio Equipment Control
The BD3825FS-E2 can be integrated into consumer audio equipment that needs several source lines selected by a system controller. The 24-SSOP-A package offers a compact surface-mount implementation, and the documented control arrangement provides both I2C operation with the BH7624KS2 and a microcontroller-driven standalone mode. This flexibility supports designs where the same board must accommodate different source configurations. Because the available product information does not state every electrical limit, confirm supply voltage, logic thresholds, analog range, switching characteristics, and absolute maximum ratings before schematic sign-off.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा BD3825FS-E2 — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद |
|---|---|
| Brand | ROHM Semiconductor |
| Package | 24-SSOP-A |
| Channel Count | 2 channels |
| Application | DVD recorder audio I/O |
| Lead Pitch | 0.8 mm |
| Body Width | 5.40 mm |
| Control Method | I2C-BUS through BH7624KS2 or direct microcontroller control |
| Standalone Control Pins | Pins 1, 2, 6, 7, 10, and 12 |
| Pull-Down Pins | Pins 18 and 24, each with 10 kOhm |
| Mounting Type | Surface mount |
मुख्य विशेषताएँ
- Purpose-built DVD recorder audio routing (बनामGeneric audio switch candidates)
- Compact 24-pin surface-mount implementation (बनामLarger-package general-purpose switches)
- Standalone and LSI-driven control options (बनामParts requiring one fixed control topology)
डिज़ाइन नोट्स
Use the 24-SSOP-A package drawing to create the PCB land pattern, including the 0.8 mm lead pitch and 5.40 mm body width. Confirm pin-1 orientation, pin numbering, and solder-mask clearance before fabrication. Place the device beside the routed audio connectors and return the analog ground and supply connections directly to the relevant plane so switching-node traces do not share sensitive audio paths.
Do not leave the control network implicit. In the documented application, pins 18 and 24 are pulled down with 10 kOhm resistors, and standalone operation requires pins 1, 2, 6, 7, 10, and 12 to be controlled by the microcontroller. Reproduce the manufacturer application circuit and validate the default state at power-up to prevent unintended audio paths from being connected.
Keep the SW and FS audio routes short and continuous, and keep high-speed digital control traces away from sensitive analog inputs. Use a quiet ground reference and place local supply bypassing at the device pins when the datasheet specifies values and placement. Because the available product information does not provide insertion loss, bandwidth, or crosstalk figures, evaluate those parameters from the manufacturer datasheet before relying on the switch for a demanding audio path.
अनुपालन जानकारी
The available product and datasheet references do not state the requested compliance details. AEC-Q100 is not applicable because the device is an audio interface IC rather than an automotive-qualified device.
