PCM1720E - 24-Bit 96kHz Stereo Audio DAC | Texas Instruments
MPN: PCM1720E ✓ AktifPCM1720E Genel Bakış
A digital-to-analog converter, or DAC, is an interface integrated circuit that converts digital audio samples into an analog voltage signal. In the signal hierarchy, a DAC belongs to the ADC/DAC class of data-converter ICs and ultimately to the broader semiconductor and signal-processing categories. The PCM1720E provides a complete stereo conversion path by combining input-format handling, digital filtering, oversampling, and output-amplifier functions in one device.
The PCM1720E accepts 24-bit input data and operates with sampling rates up to 96kHz. According to the manufacturer PCM1720 datasheet, the converter supports 8x oversampling at all sampling frequencies. Its specified dynamic range is 96dB, while system-clock operation is supported at 256fS and 384fS. These features make the device appropriate for designs requiring a conventional stereo I2S audio path rather than a high-resolution multichannel codec.
The 20-pin SSOP package provides a compact surface-mount implementation for multichannel consumer electronics, audio adapters, digital mixing equipment, and instrumentation. The verified source data describes the package as SSOP with 20 terminals and a gull-wing form. Power-supply sequencing, output coupling, ground handling, and clock jitter remain important design considerations because these parameters directly affect the integrity of the recovered analog audio signal.
Typical uses include decoding MPEG2 or AC-3 streams, reproducing stereo music through an analog amplifier, and serving as the analog-output stage in digital audio acquisition systems. In these applications, the PCM1720E accepts the digital audio stream, applies its internal oversampling and digital filtering, and produces left and right analog outputs through its integrated output amplifier.
Designers should place the PCM1720E close to its digital source and analog output circuitry, maintain the required bypass and filtering components recommended by the manufacturer datasheet, and route analog and digital return currents carefully. The datasheet is the controlling reference for pin assignments, supported data formats, clock requirements, output configuration, and electrical limits.
This page consolidates the verified distributor specifications, package information, pricing references, comparison candidates, and practical design guidance for PCM1720E evaluation. It also clearly separates confirmed data from parameters that still require confirmation from the complete manufacturer datasheet.
Drop-in alternatifler için PCM1720E — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu ürüne yer değiştirme seçenekleri mevcut değil.
Alternatifleri Talep EdinPCM1720E Maksimum Değerlendirmeler & Elektriksel Özellikler
| Converter Type | Stereo audio digital-to-analog converter |
| Çözünürlük | 24 bit |
| Maximum Sampling Rate | 96kHz |
| Input Data Format | I2S |
| Dynamic Range | 96dB |
| Oversampling Ratio | 8x at all sampling frequencies |
| System Clock | 256fS/384fS |
| Input Data Acceptance | 24-bit input data |
| Audio Compatibility | MPEG2/AC-3 compatible |
| Integrated Functions | Digital filter and output amplifier |
| Package Type | 20-SSOP |
| Terminal Count | 20 terminals |
| Terminal Form | Gull wing |
| Package Shape | Rectangular |
| Montaj Türü | Surface mount |
| RoHS Durumu | RoHS compliant |
| Lead-Free Status | Lead free |
PCM1720E rectangular Pin Yapısı Kılavuzu
PCM1720E (rectangular paket) için pin yapısı. Bu analog bileşen, giriş, çıkış ve güç besleme pinleri içerir. Ofset null, telafi ve etkinleştirme pin yapılandırmaları için üretici veri kitapçığını referans alın. Sinyal işleme ve güç amplifikasyon devreleri için mükemmel bir bileşendir.
Ayrıntılı pin çıkış verisi mevcut değil: PCM1720E.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
PCM1720E için uygundur 6 uygulamas: Stereo Consumer Audio Decoder, High-Quality Audio Data Acquisition, Digital Audio Mixer Analog Output, MPEG2 and AC-3 Playback, USB and Embedded Audio Adapter, Instrumentation and Analog Signal Output.
Stereo Consumer Audio Decoder
The PCM1720E fits stereo consumer audio decoders that require 24-bit I2S input, MPEG2 or AC-3 compatibility, and a maximum sampling rate of 96kHz. Its confirmed 96dB dynamic range provides a defined performance level for digital-to-analog conversion, while the integrated digital filter and output amplifier reduce the number of separate active stages. The converter can sit between an audio decoder and an analog line-output network. System-clock compatibility at 256fS and 384fS must be coordinated with the digital source, and the complete datasheet should be used to select coupling, bypass, and output-loading components.
Önerilen
High-Quality Audio Data Acquisition
PCM1720E is suitable for stereo audio acquisition systems operating with I2S digital audio at rates up to 96kHz. Its 24-bit input acceptance and 96dB dynamic range make it appropriate when an acquisition chain must convert two digital channels into analog signals without relying on separate digital-filter and output-amplifier blocks. The source subsystem must provide a compatible system clock at 256fS or 384fS, and the converter must be placed according to the manufacturer’s reference layout. Verify the analog output configuration and acquisition bandwidth against the complete datasheet before selecting input and output filtering.
Önerilen
Digital Audio Mixer Analog Output
The PCM1720E can provide the final analog conversion stage of a digital mixing or monitoring system accepting 24-bit I2S audio. Its integrated output amplifier and 8x oversampling at all supported sampling frequencies provide a compact path from the mixer’s digital bus to left and right analog outputs. The converter’s 96dB dynamic range is useful for maintaining signal margin across a stereo mix. Engineering attention should focus on clock synchronization, analog grounding, output loading, and the required support components so that the digital mixer and converter share a clean return-current path.
Önerilen
MPEG2 and AC-3 Playback
PCM1720E is explicitly identified as MPEG2 and AC-3 compatible, making it appropriate for decoding systems that reconstruct compressed stereo audio into an analog output. The device accepts 24-bit digital data and operates up to 96kHz, covering the confirmed operating envelope of the supplied manufacturer data. In a playback design, the digital decoder supplies I2S data and the required 256fS or 384fS system clock, while the PCM1720E performs filtering and stereo output amplification. Confirm signal polarity, output mode, and mute behavior from the complete datasheet because those details are not present in the supplied search excerpts.
Önerilen
USB and Embedded Audio Adapter
PCM1720E can serve as the analog-output converter in a compact stereo audio adapter that receives I2S data from a USB bridge, microcontroller, or digital audio interface. Its 20-SSOP package supports space-constrained surface-mount designs, while the integrated output amplifier can simplify the analog path. The host must generate data accepted at up to 96kHz and a compliant 256fS or 384fS clock. Because the verified material does not state the exact pinout or supply voltage, prototype-stage users should confirm all digital levels, power rails, bypass placement, and analog-output loading from the manufacturer datasheet.
Önerilen
Instrumentation and Analog Signal Output
PCM1720E can be used where a digital test or measurement source must produce left and right analog audio outputs. Its confirmed 24-bit interface, 96kHz maximum sampling rate, and 96dB dynamic range provide a defined basis for audio-oriented instrumentation, while the 256fS/384fS system-clock support must be matched by the signal generator. The converter should be laid out with the manufacturer’s recommended filtering and grounding arrangement to limit digital coupling into the analog output. Exact output swing, load capability, and permissible clock jitter remain unspecified in the supplied data and require datasheet confirmation.
Önerilen
Önerilen Ürünler Özeti
Mühendislik referans verileri: PCM1720E — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün |
|---|---|
| Package | 20-SSOP |
| Brand | Texas Instruments |
| Resolution | 24 bit |
| Maximum Sampling Rate | 96kHz |
| Input Interface | I2S |
| Dynamic Range | 96dB |
| Oversampling | 8x at all sampling frequencies |
| System Clock | 256fS/384fS |
| Integrated Functions | Digital filter and output amplifier |
| Audio Compatibility | MPEG2/AC-3 compatible |
Ana Farklılayıcılar
- Confirmed stereo conversion function (karşılaştırma:PCM1794ADBR)
- Integrated digital filtering and output amplification (karşılaştırma:PCM1754TDBQRQ1)
- Defined MPEG2 and AC-3 audio compatibility (karşılaştırma:DSD1702E)
Tasarım Notları
Place the PCM1720E near the digital audio source and the analog output network to minimize trace length and reduce susceptibility to digital coupling. Follow the manufacturer datasheet’s recommended bypass-capacitor placement and ground-return arrangement. The supplied web excerpts confirm the 20-SSOP package and 256fS/384fS clocking but do not provide the component values or exact layout, so those details must be taken from the manufacturer application information rather than estimated.
Treat the I2S data and system-clock paths as matched, high-speed digital interfaces even at modest audio sample rates. Confirm the required clock ratio of 256fS or 384fS, maintain the recommended source timing, and route clock and data away from sensitive analog output traces. The verified PCM1720 data does not quantify input capacitance, timing margins, or permissible jitter, so the complete datasheet must be used to establish the actual timing budget.
Do not infer that a similarly packaged stereo DAC is a drop-in substitute. A valid replacement must preserve the exact 20-SSOP footprint, pin functions, I2S format, system-clock ratio, supply-voltage range, analog-output topology, and digital-filter behavior. The comparison candidates identified in the supplied search results lack enough package and electrical detail to prove compatibility, so verify every pin and functional block against the manufacturer datasheet before approving a substitution.
Keep the analog return path continuous and avoid routing digital clocks, I2S data, or switching-node currents beneath the converter’s analog output network. Use a stable reference or digital source with low clock jitter, and follow the manufacturer’s guidance for analog and digital grounding. The 96dB dynamic-range specification does not guarantee full system performance if board noise, return-current coupling, or unstable clocking is present.
Uyumluluk Bilgisi
The verified distributor result explicitly lists PCM1720E as lead free and RoHS compliant. No verified REACH, AEC-Q100, halogen-free, or conflict-minerals statements were supplied.
