CS5394-KS - 24-Bit Stereo Audio ADC | Cirrus Logic
部品番号: CS5394-KS ✗ 生産終了CS5394-KS 概要
An audio ADC is a data-conversion IC that converts continuous analog voltage signals into digital codes for processing, storage, or transmission. Within the semiconductor hierarchy, the CS5394-KS is a delta-sigma audio ADC, a specialized form of analog-to-digital converter optimized for stereo audio. The converter integrates sampling, conversion, and anti-alias filtering so the surrounding audio system can process left- and right-channel data without relying on a separate front-end filtering stage for those functions.
The principal feature of the CS5394-KS is its 24-bit output resolution for both audio channels. The manufacturer rates the converter at 117 dB signal-to-noise ratio and identifies a 48 kHz operating mode, while the family documentation states that the output sample rate can reach 50 kHz per channel. These figures position the part for professional and consumer audio equipment requiring substantially more conversion resolution than conventional 16-bit audio converters provide. Serial output reduces the number of interchannel data conductors required by the system.
As a delta-sigma converter, the CS5394-KS uses a noise-shaping architecture intended to move quantization noise away from the audio signal band. Its integrated anti-alias filtering complements the conversion stage by attenuating high-frequency content that could otherwise alias into the digital output. The result is a consolidated stereo conversion path in which analog inputs are sampled, filtered, converted into 24-bit values, and presented serially. Clocking, digital-interface implementation, and decoupling remain board-level responsibilities that should follow the manufacturer application guidance.
Typical uses include professional audio interfaces, digital mixers, multichannel sound consoles, studio recording equipment, consumer stereo audio systems, and digital audio processing platforms. In these systems, the converter can capture balanced or unbalanced analog line-level signals after suitable input conditioning, then pass serial stereo data to a digital signal processor, audio codec, transmitter, or storage controller. The 117 dB signal-to-noise rating and 24-bit conversion depth are particularly relevant to equipment in which low-level audio content must be captured with low quantization noise.
A critical board-design consideration is preserving the quality of the analog input path. Keep input routing short, maintain a continuous ground reference, place the required bypass capacitors close to their associated supply pins, and route digital clock and data lines away from sensitive analog inputs. Follow the manufacturer’s recommended clocking and interface layout because timing and grounding errors can degrade converter performance even when nominal resolution and sampling-rate specifications are satisfied.
This product page consolidates the confirmed CS5394-KS conversion specifications, orderable naming information, practical application guidance, and verified source links. It also separates the documented device identity from unconfirmed package, pinout, environmental, and lifecycle details so engineers can make board-level decisions using manufacturer documentation rather than assumptions.
ドロップイン代替品: CS5394-KS — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストCS5394-KS 最大定格＆電気的特性
| Converter Type | Stereo delta-sigma audio analog-to-digital converter |
| ADC Resolution | 24 bit |
| Number of Channels | 2 channels |
| Nominal Sampling Rate | 48 kHz |
| Maximum Output Sample Rate | 50 kHz per channel |
| Signal-to-Noise Ratio | 117 dB |
| 電源電圧 | 5 V |
| Output Format | Serial |
| Integrated Functions | Sampling, analog-to-digital conversion, and anti-alias filtering |
| Input Architecture | Stereo left and right analog inputs |
| Output Data Width | 24 bit per channel |
CS5394-KS standard ピン配置ガイド
CS5394-KS (standard パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: CS5394-KS.
詳細は データシート をご参照ください。
主な用途
CS5394-KS の用途: 6 件s: Professional Stereo Audio Interface, Digital Audio Mixing Console, Studio Recording Equipment, Digital Speaker and Amplifier System, Consumer Stereo Audio System, Broadcast and Communications Audio.
Professional Stereo Audio Interface
The CS5394-KS fits a stereo input channel in a professional audio interface because it converts both left and right analog signals into 24-bit serial data with a 117 dB signal-to-noise rating. Its nominal 48 kHz mode addresses common high-resolution recording rates, while integrated anti-alias filtering reduces the external filtering burden around the converter. The interface designer should provide balanced or unbalanced input conditioning, low-noise reference routing, continuous grounding, and the clocking arrangement specified by the manufacturer before accepting the converter output into an audio DSP.
おすすめ
Digital Audio Mixing Console
A digital mixing console can use the CS5394-KS for a stereo line-level conversion channel where 24-bit data and a 48 kHz operating mode are required. The serial output allows the converter to feed a channel-processing engine without a parallel bus, and the integrated anti-alias filter supports a more consolidated analog-to-digital signal path. Because each converter handles two channels, the board must still address channel matching, isolated routing, grounding, digital clock distribution, and heat management across repeated converter placements.
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Studio Recording Equipment
For studio monitoring and recording equipment, the CS5394-KS provides a high-resolution stereo acquisition stage with 24-bit output and a manufacturer-rated 117 dB signal-to-noise ratio. Its integrated anti-alias filtering helps control frequency-domain artifacts before the data reaches a recorder or DSP. The analog front end remains decisive: use short, shielded routing for sensitive channels, maintain a stable reference ground, and separate high-current digital return paths from input circuitry to avoid introducing noise that masks the converter’s rated performance.
おすすめ
Digital Speaker and Amplifier System
The CS5394-KS can serve as the stereo analog-to-digital front end in a digital loudspeaker or amplifier controller. A 48 kHz conversion mode provides digital samples for crossover, equalization, and other processing before power amplification, while the serial output supports compact communication with a dedicated audio processor. The implementation must preserve converter clock timing, keep sensitive analog inputs away from switching power stages, and verify that the downstream digital processing supports the converter’s 24-bit serial data format.
おすすめ
Consumer Stereo Audio System
The CS5394-KS is suitable for a high-quality consumer stereo source that captures two analog channels at a nominal 48 kHz sampling rate. Its 24-bit conversion depth supports digital filtering, volume control, and storage stages, while the integrated anti-alias filter simplifies the conversion chain. Product-level implementation still depends on line-level input attenuation, ground-loop prevention, correct clock generation, and clean supply decoupling; consumer-product cost targets should be checked against the complete converter and support circuitry.
おすすめ
Broadcast and Communications Audio
Broadcast and communications equipment can use the CS5394-KS to convert a stereo analog monitoring or program path into serial digital audio data. The 117 dB signal-to-noise rating is relevant when preserving quiet program material, and the 24-bit format allows downstream processing without immediately reducing the source to 16-bit precision. Board-level validation should account for long-term clock jitter, grounding in multi-channel equipment, input protection, and the interface requirements of the downstream encoder or transmission processor.
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おすすめ製品の概要
エンジニアリング参考データ: CS5394-KS — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 |
|---|---|
| Brand | Cirrus Logic |
| Converter Type | Stereo delta-sigma audio ADC |
| ADC Resolution | 24 bit |
| Number of Channels | 2 channels |
| Nominal Sampling Rate | 48 kHz |
| Maximum Output Sample Rate | 50 kHz per channel |
| Signal-to-Noise Ratio | 117 dB |
| Supply Voltage | — |
| Output Interface | Serial |
| Anti-Alias Filter | Integrated |
| Output Data | 24-bit values for left and right channels |
主な差別化要因
- High-resolution stereo conversion in one device （vs Generic 16-bit audio ADC)
- Integrated signal-conditioning functions （vs Discrete sampling and filtering arrangement)
- Low-noise conversion for audio systems （vs Lower-dynamic-range audio converter)
設計ノート
Keep the stereo analog input routes short and place the converter’s required bypass capacitors close to the associated supply pins. Maintain a continuous ground reference between the analog input section, converter ground, and downstream audio processor. Route serial clock and data traces away from sensitive input nodes, and avoid placing high-current switching return paths beneath the converter or its analog input network.
Treat the digital clock as a high-quality signal and follow the manufacturer’s clocking and grounding guidance exactly. For a 48 kHz stereo application, verify the serial interface timing, bit order, channel arrangement, and clock relationship in the manufacturer datasheet before PCB routing. Avoid adding arbitrary series resistance or changing clock topology unless the resulting interface remains consistent with the converter’s specified operating conditions.
Do not infer package pin assignments from the CS5394 family name alone. The -KS ordering suffix must be matched to the package drawing and pin-description table, including thermal-pad and no-connect details. Also confirm analog input range and external conditioning before applying source signals. Incorrect gain, clipping, or grounding can waste the benefit of the converter’s 24-bit resolution even when the digital interface operates correctly.
コンプライアンス情報
Compliance status is not stated in the manufacturer-linked information for CS5394-KS. Verify the current manufacturer product or material declaration before incorporating the part into a regulated design.