AK5355VT - 16-Bit Low-Power Audio ADC | Asahi Kasei
料号： AK5355VT ✓ 量产中AK5355VT 概述
An analog-to-digital converter is an integrated circuit that samples an analog voltage and converts it into a digital representation. The AK5355VT belongs to the ADC hierarchy: delta-sigma ADC, serial ADC, audio ADC, data-converter IC, and integrated circuit. In audio systems, this conversion stage turns microphone or line-level analog signals into serial digital data that can be processed by an audio codec, DSP, digital mixer, or digital recording equipment.
Key verified characteristics include 16-bit resolution, delta-sigma conversion, a serial output interface, and an integrated input gain amplifier. The integrated amplifier reduces the need for a separate microphone preamplifier when operating with suitably low-level inputs. The 2.1 V to 3.6 V operating range is appropriate for low-voltage portable, consumer-electronics, and embedded audio equipment, while the -40°C to +85°C range supports industrial-temperature operation.
The AK5355VT uses a serial digital interface, allowing digitized audio to be transferred through a compact connection rather than a parallel bus. This can reduce wiring and PCB routing requirements, although the host processor must be configured to clock and frame the serial data correctly. Exact sampling rate, input bandwidth, clock requirements, digital-interface voltage, and conversion-performance figures were not included in the supplied verified data and therefore require confirmation from the manufacturer datasheet.
Typical uses include digital microphones, microphone-array preamplification, audio-recording modules, portable audio equipment, and industrial sound-capture systems. The integrated gain amplifier is especially relevant when the source signal is weak, while the low-voltage supply range simplifies integration with modern 3.3 V digital systems.
Designers should verify input range, programmable gain, clocking, serial-format compatibility, and decoupling requirements before layout release. Input and reference circuitry should be placed for low noise, with short analog routing and controlled return paths. The AK5355VT is appropriate when a 16-bit, low-power, 16-TSSOP audio ADC is required, but a different converter may be preferable when a specific sampling rate, channel count, digital format, or pin-compatible second source is mandatory.
This product page consolidates the verified electrical, environmental, package, pricing-reference, and sourcing information for the AK5355VT and distinguishes confirmed specifications from parameters that still require datasheet confirmation. It also provides selection guidance, application context, and an honest assessment of the limited drop-in replacement data available.
直接替换替代料： AK5355VT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料AK5355VT 最大额定值与电气特性
| Converter Type | Delta-sigma analog-to-digital converter |
| 分辨率 | 16 bit |
| Output Interface | Serial |
| Supply Voltage Range | 2.1 V to 3.6 V |
| 工作温度范围 | -40°C to +85°C |
| 封装 | 16-TSSOP |
| Package Width | 4.40 mm |
| Package Height | 0.173 inch |
| 安装类型 | Surface mount |
| Integrated Input Gain Amplifier | Yes |
| Primary Application | Digital audio and microphone signal conversion |
| 生命周期状态 | Active |
| Manufacturer | Asahi Kasei Microdevices/AKM |
AK5355VT 0.173 inch 引脚配置指南
AK5355VT（0.173 inch 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： AK5355VT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AK5355VT 适用于 6 应用s: Digital Microphone Front End, Low-Level Audio Signal Acquisition, Portable Audio Recording Equipment, Industrial Sound Monitoring, Digital Audio Mixer Input, Digital Speaker and Voice Feedback.
Digital Microphone Front End
The AK5355VT fits digital-microphone front ends because it combines a 16-bit delta-sigma ADC with an integrated input gain amplifier for low-level signals. It operates from 2.1 V to 3.6 V, allowing operation in compact 3.3 V audio hardware, and its -40°C to +85°C range suits industrial-temperature products. The integrated amplifier can reduce the need for a separate gain stage when the microphone output lies within the converter's supported input range. Designers must confirm the exact gain range, input impedance, microphone bias arrangement, and clock requirements before finalizing the schematic.
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Low-Level Audio Signal Acquisition
The AK5355VT is appropriate for acquiring weak analog audio signals because it provides 16-bit conversion resolution and an integrated input gain amplifier in one low-power device. Its 2.1 V to 3.6 V operating range supports low-voltage embedded audio systems, while the serial interface reduces the number of interconnects needed to reach a digital audio processor. The engineering benefit is a potentially shorter analog chain and lower component count. The designer should still verify full-scale input range, gain steps, effective noise performance, bandwidth, and digital timing from the manufacturer datasheet.
推荐
Portable Audio Recording Equipment
The AK5355VT supports portable recording equipment through its low 2.1 V to 3.6 V supply range and integrated input gain amplification. A 16-bit serial ADC can transfer digitized audio to a DSP, codec, or embedded microcontroller while keeping the analog section compact. This is valuable where microphone signals require amplification before digital capture and board space is constrained. Power consumption, conversion latency, clock accuracy, and supported sampling rates were not supplied, so battery-life and synchronization claims require detailed datasheet verification before architecture approval.
推荐
Industrial Sound Monitoring
The AK5355VT can serve as the conversion front end in industrial sound-monitoring equipment because it combines 16-bit resolution, an integrated gain amplifier, and operation from -40°C to +85°C. The serial output is suitable for transferring captured audio toward a processor or network interface. Its compact 16-TSSOP package supports space-constrained control boards, while the low-voltage operation simplifies system-level rail selection. For vibration, machinery, or acoustic-monitoring installations, engineers must confirm input bandwidth, dynamic range, clock jitter sensitivity, and long-term reliability under the actual environmental conditions.
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Digital Audio Mixer Input
The AK5355VT can serve as an input converter in a digital audio mixer where a low-level source must become serial digital data. Its 16-bit resolution supports audio conversion, while the integrated input gain amplifier may simplify the first analog stage and help preserve signal-to-noise ratio when source levels are low. The 2.1 V to 3.6 V operating range aligns well with modern low-voltage digital audio architectures. However, the host mixer must support the device's serial framing and clock requirements, and designers need the verified sampling-rate, latency, and audio-bandwidth specifications before confirming suitability.
推荐
Digital Speaker and Voice Feedback
The AK5355VT can be evaluated for voice-feedback and digital speaker monitoring systems that require conversion of analog feedback signals before processing. Its 16-bit serial ADC architecture and integrated input gain amplifier suit low-level audio inputs, while operation down to 2.1 V supports compact embedded systems. The device can reduce analog board area compared with a discrete preamplifier followed by an ADC. Before selecting it, verify the input bandwidth needed for speech or acoustic feedback, supported sampling rate, latency, serial timing, and whether the integrated gain range accommodates the transducer interface without adding another amplifier.
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推荐产品汇总
工程参考数据： AK5355VT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Converter Type | Delta-sigma ADC |
| Resolution | 16 bit |
| Interface | Serial |
| Supply Voltage Range | 2.1 V to 3.6 V |
| Operating Temperature Range | -40°C to +85°C |
| Integrated Input Gain Amplifier | Yes |
| Package | 16-TSSOP |
| Brand | Asahi Kasei Microdevices |
| Mounting Type | Surface mount |
| Lifecycle Status | Active |
关键差异点
- Integrated input gain amplification （对比 Generic 16-bit ADC without an integrated input gain amplifier)
- Low-voltage digital-audio operation （对比 Higher-voltage generic serial ADC)
- Industrial temperature capability （对比 Consumer-temperature audio ADC)
设计说明
Keep the AK5355VT analog input routing short and isolate it from digital clock and serial-data paths. Place input, supply, and decoupling connections according to the manufacturer datasheet layout once the complete pinout is confirmed. The verified 16-TSSOP package is only 4.40 mm wide, so pin spacing and exposed lead geometry should be checked against the selected land pattern before routing. Because the exact pin names were not present in the supplied data, the footprint must not be inferred from generic TSSOP diagrams.
The AK5355VT operates from 2.1 V to 3.6 V, but the supplied data does not identify separate analog and digital rail limits or permitted rail combinations. Confirm those details in the manufacturer datasheet, then place local high-frequency bypass capacitors at the supply pins according to the recommended application circuit. Account for the voltage drop across the supply path and avoid sharing high-current return paths with sensitive microphone or audio-input returns.
Treat the serial clock, serial data, and digital control connections as a compact digital interface whose timing must be verified against the host. Route clock away from microphone and analog inputs, use a continuous ground reference beneath the interface where practical, and keep the analog return path quiet. Sampling rate, clock frequency, input bandwidth, and timing-edge requirements were not included in the verified data, so these must be obtained from the manufacturer datasheet before selecting host clocking and termination arrangements.
Do not assume that a generic 16-TSSOP footprint or a converter with the same resolution is electrically interchangeable with the AK5355VT. The verified identity depends on a 16-bit delta-sigma architecture, serial interface, integrated input gain amplifier, 2.1 V to 3.6 V supply range, and -40°C to +85°C operating range. A replacement must also match the exact pinout, clock protocol, input range, gain behavior, and electrical limits. The supplied search data did not establish five qualified drop-in alternatives, so unverified substitutions should not be approved for production.
合规信息
The supplied verified results confirm an active product and provide electrical, environmental, and package information, but they do not contain explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 statements. These fields therefore remain unknown rather than inferred.
