BD3825FS-E2 - 2-Channel Audio Switch | ROHM Semiconductor
MPN: BD3825FS-E2 ✓ فعالBD3825FS-E2 جائزہ
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.
کے لیے ڈراپ اِن متبادل BD3825FS-E2 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس پروڈکٹ کے لیے کوئی ڈراپ اِن متبادل دستیاب نہیں۔
متبادل کی درخواست کریںBD3825FS-E2 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Device Type | Audio switch IC |
| Channel Count | 2 channels |
| Application | DVD recorder audio I/O interface |
| پیکیج | 24-SSOP-A |
| Lead Count | 24 pins |
| Lead Pitch | 0.8 mm |
| Body Width | 5.40 mm |
| Body Width (Imperial) | 0.213 inch |
| ماؤنٹنگ ٹائپ | 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 پن کنفیگریشن گائیڈ
BD3825FS-E2 (24-ssop-a پیکیج) کے لیے پن کنفیگریشن۔ پن نمبرنگ، فنکشنز اور کنکشن ڈایاگرامز مینوفیکچرر کے ڈیٹا شیٹ میں بیان کیے گئے ہیں۔ درست فٹ پرنٹ اور سولڈرنگ رہنما ہدایات کے لیے اسی سے رجوع کریں۔
کے لیے تفصیلی پن آؤٹ ڈیٹا دستیاب نہیں BD3825FS-E2.
رجوع کریں ڈیٹا شیٹ مکمل پن کنفیگریشن کے لیے۔
عام استعمالات
BD3825FS-E2 کے لیے موزوں ہے 6 ایپلیکیشنs: 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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
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.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا BD3825FS-E2 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ |
|---|---|
| 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 |
اہم امتیازی خصوصیات
- Purpose-built DVD recorder audio routing (بمقابلہGeneric audio switch candidates)
- Compact 24-pin surface-mount implementation (بمقابلہLarger-package general-purpose switches)
- Standalone and LSI-driven control options (بمقابلہParts requiring one fixed control topology)
ڈیزائن نوٹس
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.
تعمیل کی معلومات
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.
