BD37069FV-ME2 - 6-Channel Car Audio Processor | ROHM
MPN: BD37069FV-ME2 ✓ نشطBD37069FV-ME2 نظرة عامة
An automotive audio processor is an application-specific integrated circuit that manages multiple audio signal paths before conversion, distribution, or amplification. The BD37069FV-ME2 belongs to the broader audio-processing IC category and is designed to simplify head-unit design by combining input selection, level control, and filtering in one device. Its architecture helps reduce the number of discrete analog components required around an ADC and subsequent audio signal chain.
The six-channel input selector allows six stereo sources to be connected to the processor, making the device suitable for a head unit that must handle radio, external media, navigation, and other source signals. The six-channel volume circuit provides independent or coordinated level adjustment for stereo channels, while the built-in second-order post filter reduces out-of-band noise before the selected signal reaches the ADC interface. The high-voltage function supports a maximum output of 5.2 VRMS, which is useful where the downstream audio path requires a larger signal swing.
The BD37069FV-ME2 uses an I2C interface for control and configuration, allowing an automotive audio host processor or system controller to adjust operating parameters without a large parallel-control footprint. Its 7 V to 9.5 V operating range is consistent with automotive electronic systems, although final supply tolerance, transient protection, and ground requirements must be checked against the complete system design. The 40-SSOP-B package is intended for surface-mount automotive electronics assemblies.
Typical uses include car-audio head units, automotive infotainment systems, radio and navigation audio front ends, external-accessory input modules, and multi-source vehicle audio systems. The processor is most useful when the design needs centralized stereo-source selection and adjustable signal conditioning before ADC conversion. It is also appropriate where a fixed analog network would be difficult to tune and where software-controlled I2C configuration is preferred.
For PCB design, place the decoupling capacitors close to the supply and ground pins, route audio inputs away from switching nodes and digital control signals, and verify the external input and output network against the manufacturer’s recommended application circuit. Pay particular attention to channel mapping, signal amplitude, filter configuration, and the relationship between the selected source and the ADC input range. The manufacturer datasheet and application information should define the pin connections and test conditions.
This product page combines the manufacturer’s functional description with distributor package and interface information, practical application guidance, and a comparison framework for engineers evaluating equivalent sound processors. Use the documented operating limits and pin descriptions as the design authority rather than treating the summarized application guidance as a substitute for the complete manufacturer datasheet.
بدائل مباشرة لـ BD37069FV-ME2 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
BD37069FV-M
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
BD37069FV-ME2 الحدود القصوى والخصائص الكهربائية
| Device Type | Automotive car-audio sound processor |
| Input Configuration | 6 stereo input channels |
| Volume Circuit | 6-channel volume circuit |
| Post Filter | Built-in 2nd-order post filter |
| Supply Voltage Range | 7 V to 9.5 V |
| Control Interface | I2C bus |
| Maximum High-Voltage Output | 5.2 VRMS |
| Output Signal Level | Adjusted before ADC interfacing |
| Noise Reduction | Out-of-band noise reduction through the 2nd-order post filter |
| العلبة | 40-SSOP-B |
| Package Width | 5.40 mm |
| Package Length | 0.213 inch |
| نوع التركيب | Surface mount |
| عدد الدبابيس | 40 pins |
| Application Category | Automotive audio |
| ADC Interface | Adjusted signal output interfaced to an ADC |
دليل تكوين أطراف BD37069FV-ME2 0.213 inch
تكوين الأطراف لـ BD37069FV-ME2 (حزمة 0.213 inch). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
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التطبيقات النموذجية
BD37069FV-ME2 مناسب لـ 6 التطبيقs: Automotive Head-Unit Signal Conditioning, Multi-Source Vehicle Audio Interface, Automotive Radio and Navigation Audio Front End, External Media and Accessory Input Module, Automotive Amplifier Input Conditioning, Vehicle Voice and Telematics Audio Path.
Automotive Head-Unit Signal Conditioning
The BD37069FV-ME2 fits the analog input stage of a car-audio head unit that must handle radio, navigation, media, and accessory sources. Its six stereo input channels and six-channel volume circuit consolidate source selection and level adjustment in one 40-SSOP-B device. The adjusted signal can feed an ADC while the built-in second-order post filter reduces out-of-band noise. The 7 V to 9.5 V operating range supports automotive power-system integration, although the complete supply and transient design must be validated against the manufacturer’s recommended circuit.
موصى به
Multi-Source Vehicle Audio Interface
Use the BD37069FV-ME2 when a vehicle audio system accepts more than one stereo source and requires centralized selection before digitization. Six internal input channels reduce the need for a large external analog switch matrix, while the volume circuit prepares each selected path for the downstream converter. The processor’s I2C interface permits the head-unit controller to manage configuration electronically, and its high-voltage function can reach 5.2 VRMS maximum output. Designers should still validate source impedance, signal headroom, channel isolation, and ADC input limits in the complete analog path.
موصى به
Automotive Radio and Navigation Audio Front End
The BD37069FV-ME2 is appropriate for the shared front end of an automotive radio, navigation, and voice-audio system. Separate stereo sources can be routed through the six-channel selector, after which level control and the second-order post filter condition the chosen signal for an ADC. This architecture helps a system controller implement source priorities through I2C instead of relying on a large analog control network. For reliable reception of weak radio signals, however, RF and tuner filtering must remain ahead of this audio processor, and the design should verify noise, distortion, and channel-to-channel crosstalk under the intended operating conditions.
موصى به
External Media and Accessory Input Module
The BD37069FV-ME2 can support an automotive accessory-input module that combines external stereo sources with vehicle audio sources. Its six stereo channels provide input capacity for multiple connector-based sources, while the integrated volume and post-filter functions reduce external analog conditioning. The I2C interface lets a central vehicle controller configure routing and levels, and the 5.2 VRMS maximum high-voltage output offers additional signal swing before conversion. Board designers should establish grounding and isolation practices that prevent accessory noise from reaching sensitive audio channels, and should confirm connector-level impedance requirements directly in the manufacturer documentation.
موصى به
Automotive Amplifier Input Conditioning
The BD37069FV-ME2 can serve as the signal-conditioning element ahead of an automotive power amplifier when multiple line-level sources require selection and level adjustment. The six-channel volume circuit provides a common functional stage for stereo paths, and the second-order post filter reduces unwanted out-of-band content before downstream processing. Its I2C control permits operating changes from a vehicle head unit without additional mechanical controls. Because the processor also offers a high-voltage function reaching 5.2 VRMS maximum output, the interface must be engineered carefully to avoid overload, excessive distortion, or channel imbalance at the amplifier input.
موصى به
Vehicle Voice and Telematics Audio Path
The BD37069FV-ME2 can condition a stereo voice or telematics source before it enters a shared vehicle ADC path. Input selection and six-channel volume control allow the source to be integrated with other stereo streams, while the second-order post filter suppresses out-of-band content in the selected path. The I2C interface supports controlled selection from the vehicle infotainment processor, and the 40-SSOP-B package provides a defined surface-mount footprint. A production design should verify the allowed source bandwidth, microphone or line-level amplitude, acoustic noise expectations, and whether the high-voltage mode is required for the selected voice channel.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ BD37069FV-ME2 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | BD37069FV-M |
|---|---|---|
| Package | 40-SSOP-B | 40-SSOP-B for the BD37069FV-ME2 ordering variant |
| Brand | ROHM Semiconductor | ROHM Semiconductor |
| Device Type | Car-audio sound processor | Sound processor for car audio |
| Stereo Input Channels | 6 channels | 6 channels |
| Volume Circuit | 6-channel volume circuit | 6-channel volume circuit |
| Supply Voltage Range | 7 V to 9.5 V | 7 V to 9.5 V |
| Control Interface | I2C bus | I2C bus |
| Post Filter | Built-in 2nd-order post filter | Built-in 2nd-order post filter |
| Maximum High-Voltage Output | 5.2 VRMS | 5.2 VRMS |
| Output Stage | Built-in high-voltage amplifier | Built-in high-voltage amplifier |
أبرز الفروقات
- Integrated six-source analog routing (مقابلBD37069FV-M)
- Integrated post-filtering (مقابلBD37069FV-M)
- Software-configurable car-audio control (مقابلBD37069FV-M)
ملاحظات التصميم
Place the required input, output, and supply bypass capacitors directly beside their associated pins and keep the return path continuous. Route the six stereo inputs as matched, short analog traces and keep them away from I2C clock and data lines. The SSOP-B land pattern should follow the manufacturer’s recommended PCB footprint rather than a generic SOP drawing.
The second-order post filter is part of the signal path, so configure it according to the intended source bandwidth and ADC sampling architecture. Verify maximum input amplitude before enabling the high-voltage function because its capability extends to 5.2 VRMS. Include adequate grounding and source-impedance control to minimize channel imbalance, crosstalk, and unintended gain.
Do not treat the BD37069FV-M and BD37069FV-ME2 labels as interchangeable without checking suffix-specific ordering information. Confirm package pinout, operating temperature, packing format, and lifecycle status in the current ROHM documentation. A device with similar input counts or I2C support is not automatically a drop-in replacement.
Design the 7 V to 9.5 V supply rail to remain within the manufacturer’s operating limits and to tolerate the automotive environment. Use the documented decoupling network and validate startup, shutdown, and power-rail behavior across the intended system states. External protection should be selected for the actual transient environment rather than inferred from the nominal supply range alone.
معلومات الامتثال
The automotive application and product category are identified by the manufacturer, but no specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration appears in the cited records.
