PCM1718E - 18-Bit Stereo Audio DAC | Texas Instruments
MPN: PCM1718E ✗ انتهى عمره الإنتاجيPCM1718E نظرة عامة
A digital-to-analog converter, or DAC, converts digital audio samples into an analog voltage suitable for amplifiers, speakers, headphones, or line-level audio equipment. In the audio IC hierarchy, the PCM1718E is a stereo DAC within the broader ADC/DAC and interface-device categories. Its integrated filtering and output circuitry reduce the number of external signal-chain components needed in conventional consumer audio designs.
The verified data identifies 18-bit resolution, a 48 kHz sampling rate, and I2S data input for the PCM1718E. The manufacturer material and datasheet snippet also identify 100 dB SNR, 96 dB dynamic range, and approximately -90 dB THD+N performance. These figures position the device for CD-rate and related stereo audio applications where accurate reconstruction of the digital waveform is required. The 8-times oversampling digital filter and analog low-pass filter support conversion into a smooth analog output.
Because the PCM1718E integrates a complete stereo DAC path, it can reduce design complexity in source equipment, portable audio products, digital mixers, and home-audio interfaces. Designers still need to confirm the exact pin functions, power-supply requirements, analog output configuration, clock format, and recommended external component values against the manufacturer datasheet before releasing a PCB.
The 20-pin SSOP package is a surface-mount format with gull-wing leads. Package dimensions, pin spacing, thermal characteristics, and exposed-pad details were not included in the verified excerpts and therefore require confirmation from the full manufacturer datasheet. The PCM1718E is offered under both Texas Instruments and historical Burr-Brown branding in distributor records, reflecting the product's origin within Burr-Brown audio converter technology.
This page combines the verified distributor identification, manufacturer performance highlights, package information, pricing availability notes, and application-specific engineering guidance. It also distinguishes verified facts from parameters that still require datasheet confirmation, helping engineers assess the PCM1718E without treating unavailable electrical, lifecycle, or compliance information as guaranteed.
بدائل مباشرة لـ PCM1718E — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
لا تتوفر بدائل متوافقة تمامًا لهذا المنتج.
اطلب بدائلPCM1718E الحدود القصوى والخصائص الكهربائية
| Product Type | Stereo audio digital-to-analog converter |
| Converter Resolution | 18 bit |
| Maximum Sampling Rate | 48 kHz |
| Digital Audio Interface | I2S |
| Channel Configuration | Stereo |
| Signal-to-Noise Ratio | 100 dB |
| Dynamic Range | 96 dB |
| THD+N | -90 dB |
| Digital Filter Oversampling Ratio | 8x |
| DAC Architecture | Multilevel delta-sigma DAC |
| Analog Output Stage | Integrated analog low-pass filter and output amplifier |
| العلبة | 20-pin SSOP |
| نوع التركيب | Surface mount |
| Terminal Form | Gull wing |
| Number of Terminals | 20 |
| Manufacturer Technology | SoundPlus stereo audio DAC |
دليل تكوين أطراف PCM1718E 20-pin ssop
تكوين الأطراف لـ PCM1718E (حزمة 20-pin ssop). يتميز هذا المكوّن التناظري بأطراف الإدخال والإخراج وإمداد الطاقة. راجع ورقة بيانات الشركة المصنعة لتكوينات طرف إلغاء الإزاحة والتعويض والتمكين. مثالي لدوائر تكييف الإشارة والمضخمات.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ PCM1718E.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
PCM1718E مناسب لـ 6 التطبيقs: CD-Rate Stereo Audio Source, Portable Audio Player, Digital Mixer and Audio Interface, Home Audio Equipment, Digital Recording Playback Monitor, Industrial Audio Control Panel.
CD-Rate Stereo Audio Source
The PCM1718E fits CD-rate stereo playback because it accepts normal 18-bit input data, operates at 48 kHz, and uses an I2S digital interface. Its verified 100 dB SNR, 96 dB dynamic range, and approximately -90 dB THD+N support accurate reconstruction of a digital-audio waveform. Place the converter in the signal path between an I2S source and an analog line-output stage, then follow the manufacturer reference circuit for clocking, grounding, and filtering. The 8-times oversampling digital filter and integrated analog low-pass filter reduce external signal-chain complexity, although the available excerpts do not provide the required external component values.
موصى به
Portable Audio Player
The PCM1718E is suitable for a portable stereo audio player that receives 18-bit, 48 kHz I2S data and requires an analog output stage. Its integrated delta-sigma DAC, analog low-pass filter, and output amplifier can reduce the number of discrete conversion blocks in the signal chain. The verified 96 dB dynamic range and 100 dB SNR provide useful performance targets for headphone or line-level amplification. Power-supply voltage, current consumption, and operating temperature were not present in the verified excerpts, so a portable design must confirm those specifications from the full Texas Instruments PCM1718 datasheet before battery-life or thermal budgets are finalized.
موصى به
Digital Mixer and Audio Interface
PCM1718E can serve as the stereo DAC stage in a digital mixer or small audio interface when the host controller supplies compatible I2S data at 48 kHz. The converter's 18-bit input format, integrated oversampling filter, and analog low-pass section make it practical to establish a predictable digital-to-analog path. Its approximately -90 dB THD+N and 96 dB dynamic range are relevant when evaluating channel-level noise and distortion. Because exact digital interface timing, master-clock requirements, and pin definitions were not captured in the supplied excerpts, the implementation should be checked against the official 20-pin SSOP pinout and application circuit.
موصى به
Home Audio Equipment
The PCM1718E is a practical DAC choice for home-audio equipment that consumes 48 kHz I2S audio and requires a conventional analog line output. Its 100 dB SNR, 96 dB dynamic range, and approximately -90 dB THD+N provide a clear performance baseline for a compact source component. The integrated output amplifier and analog low-pass filter can simplify board partitioning, while the 20-pin SSOP package keeps the component compatible with a conventional surface-mount audio board. Exact output-mode, decoupling, and output-loading guidance must be taken from the manufacturer datasheet because those values were not included in the verified snippets.
موصى به
Digital Recording Playback Monitor
PCM1718E can be used in a playback monitoring path where an embedded system outputs 18-bit, 48 kHz I2S data and engineers need to audition the resulting analog waveform. The verified 100 dB SNR and 96 dB dynamic range are useful for comparing recorded sources and checking end-to-end playback behavior. Its integrated analog low-pass filter reduces the need for a separate reconstruction filter, but the system still requires correct clocking, grounding, and output loading. The retrieved sources do not provide the recommended analog-output values or measured latency, so those details should be verified from the official Texas Instruments datasheet.
موصى به
Industrial Audio Control Panel
The PCM1718E is applicable to an industrial audio control panel that accepts digital audio from a processor and produces stereo analog signals for amplifiers or active speakers. Its 48 kHz I2S interface and 18-bit conversion capability suit fixed-rate embedded audio systems, while the 96 dB dynamic range supports intelligible program material. The integrated analog low-pass filter and output amplifier can reduce board complexity compared with a discrete converter approach. Industrial temperature limits, supply tolerances, EMC considerations, and lifecycle status were not included in the verified excerpts, so they must be confirmed before qualification for factory, building, or process-audio equipment.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PCM1718E — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج |
|---|---|
| Package | 20-pin SSOP |
| Brand | Texas Instruments |
| Product Type | Stereo audio DAC |
| Resolution | 18 bit |
| Sampling Rate | 48 kHz |
| Digital Interface | I2S |
| Signal-to-Noise Ratio | 100 dB |
| Dynamic Range | 96 dB |
| THD+N | -90 dB |
| Digital Filter Oversampling | 8x |
ملاحظات التصميم
Assign the PCB exclusively from the official 20-pin SSOP pinout in the Texas Instruments PCM1718 datasheet. Keep the digital data and clock route away from the analog output and reference circuitry, use a continuous ground reference, and place required bypass capacitors close to their associated supply pins. The supplied excerpts do not state the capacitor values or grounding topology, so the manufacturer reference layout should control implementation rather than general-purpose assumptions.
Validate I2S data timing, clock polarity, and master-clock requirements at the actual source-to-DAC connection. Digital edges and inadequate return paths can degrade converter performance even when the nominal interface is 48 kHz I2S. Use the manufacturer timing recommendations and measurement setup to confirm setup and hold margins; those numerical timing limits were not available in the retrieved excerpts and therefore should not be guessed.
Do not assume that a similarly named PCM171x device is a drop-in substitute. A valid replacement must match the PCM1718E's 20-pin SSOP footprint, individual pin functions, interface requirements, supply rails, analog-output topology, and clocking behavior. The supplied cross-reference material identifies PCM1717EG only as a comparison candidate and does not prove pin compatibility, so a PCB change or detailed manufacturer-level qualification may be necessary.
Determine the required analog and digital supply rails from the full manufacturer datasheet before laying out the power system. The verified material does not provide operating voltages, quiescent current, or power dissipation, so thermal and efficiency calculations would be unsupported. Confirm bypass requirements, allowable supply sequencing, and output-load limits, then measure the assembled design across its intended input range and audio operating states.
معلومات الامتثال
The verified excerpts do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Current status must be confirmed on the Texas Instruments product page and applicable manufacturer documentation.
