PCM1782DBQ - 24-Bit Stereo Audio DAC | Texas Instruments
Артикул: PCM1782DBQ ✓ АктивенPCM1782DBQ Обзор
An audio DAC is a data-converter IC that transforms digital audio samples into left and right analog voltage signals for subsequent amplification and loudspeaker or headphone drive. In the broader hierarchy, the PCM1782DBQ belongs to the digital-to-analog converter class, within interface and signal-conversion ICs, and ultimately within semiconductor devices used in professional and consumer audio systems.
The principal specifications of the PCM1782DBQ include 24-bit resolution, a 192 kHz sampling-rate designation, support for I2S audio data, and a 16-lead SSOP package. According to the Texas Instruments product page, the PCM1780, PCM1781, and PCM1782 share the same CMOS monolithic converter family and use enhanced multilevel delta-sigma conversion. The PCM1782 provides the complete set of user-programmable functions through its three-wire serial control port.
The delta-sigma architecture performs digital noise shaping before converting the filtered digital stream into an analog output. Its multilevel implementation is intended to improve dynamic performance and reduce sensitivity to timing variation in the incoming clock. For system design, this makes the device appropriate when a compact stereo conversion stage is required without moving to a larger multichannel audio-converter package. Exact analog performance values and operating limits should be confirmed from the manufacturer datasheet for the selected production configuration.
Typical applications include digital mixing consoles, professional audio interfaces, stereo monitor controllers, broadcast equipment, digital instruments, and high-fidelity playback systems. In these systems, the PCM1782DBQ can accept digital audio from a transport or audio processor and provide separate analog outputs for left and right channels. The three-wire control interface permits configuration of supported device functions when the host system includes the appropriate register-control sequence.
A key implementation consideration is the relationship between the master clock, serial audio clock, and data timing. The converter must receive correctly timed I2S data, and the PCB should keep clock and data routing short and away from noisy switching nodes. Analog output filtering and grounding should follow the reference circuitry in the manufacturer datasheet, because incorrect filter implementation can affect channel balance and audible noise performance.
This product page combines the exact PCM1782DBQ family identification, practical interface guidance, family-level alternatives, and design-focused comparisons. It helps engineers evaluate clocking, control, package, and replacement considerations before beginning an audio-converter design.
Аналоги без доработки для PCM1782DBQ — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
PCM1780DBQ
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
PCM1781DBQ
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
PCM1782DBQ Максимальные параметры и электрические характеристики
| Converter Type | Stereo audio digital-to-analog converter |
| Разрешение | 24 bit |
| Nominal Sampling Rate | 192 kHz |
| Maximum Stated Sampling Rate | 200 kHz |
| Digital Audio Interface | I2S |
| DAC Architecture | Enhanced multilevel delta-sigma |
| Process Technology | CMOS monolithic |
| Number of Audio Channels | 2 channels |
| Control Interface | Three-wire serial control port with register write functions |
| Clock Jitter Tolerance | Improved |
| Корпус | 16-lead SSOP |
| Число выводов | 16 pins |
| Тип монтажа | Surface mount |
Руководство по цоколевке PCM1782DBQ в корпусе 16-lead ssop
Цоколевка для PCM1782DBQ (корпус 16-lead ssop). Этот аналоговый компонент имеет выводы входа, выхода и питания. Обратитесь к техническому описанию производителя для конфигураций выводов балансировки нуля, коррекции и разрешения. Идеально подходит для схем обработки сигналов и усилителей.
Нет подробных данных о распиновке для PCM1782DBQ.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
PCM1782DBQ подходит для 6 применениеs: Professional Stereo Audio Interface, Digital Mixing Console, High-Fidelity Digital Audio Player, Broadcast and Studio Monitoring, Digital Musical Instrument, Digital Audio Test and Measurement.
Professional Stereo Audio Interface
The PCM1782DBQ fits a professional stereo interface requiring 24-bit digital-to-analog conversion at a nominal 192 kHz sampling rate. Its two-channel architecture produces separate left and right analog signals for the output stage, while the I2S interface connects cleanly to an audio transport or digital mixer. The enhanced multilevel delta-sigma design also improves tolerance to clock jitter, which is valuable when the converter must coexist with processors, converters, and long digital interconnects. The three-wire serial control port provides register-based configuration for the programmable functions supported by the PCM1782.
Рекомендуется
Digital Mixing Console
A digital mixing console can use the PCM1782DBQ for a stereo monitoring or auxiliary output channel when 24-bit resolution and a nominal 192 kHz sampling rate are required. I2S provides a compact digital connection from the console's signal-processing engine, while the converter's stereo outputs preserve independent left and right channels for balanced or unbalanced output circuitry. The enhanced multilevel delta-sigma architecture supports high-performance conversion, and improved clock-jitter tolerance helps preserve performance when the audio path contains multiple clocked stages.
Рекомендуется
High-Fidelity Digital Audio Player
The PCM1782DBQ is appropriate for a high-fidelity digital player that accepts I2S audio and requires a compact stereo output stage. Its 24-bit data path and nominal 192 kHz sampling rate support high-resolution playback, while the two-channel converter reduces the component count compared with using discrete converters for each output. The SSOP package also allows the DAC to be placed close to the output-filter network, helping keep sensitive analog routing compact. Host configuration can use the three-wire serial control port when the required programmable functions are enabled.
Рекомендуется
Broadcast and Studio Monitoring
The PCM1782DBQ can serve as the stereo conversion element in broadcast monitoring, studio playback, or signal-routing equipment. A nominal 192 kHz sampling capability and support for rates up to 200 kHz provide resolution for high-rate audio paths, while the stereo configuration maps directly to standard left and right monitoring channels. Its enhanced multilevel delta-sigma architecture and improved tolerance to clock jitter are useful in synchronized digital audio systems. Exact dynamic-range and distortion performance should be verified against the manufacturer specification for the selected operating conditions.
Рекомендуется
Digital Musical Instrument
The PCM1782DBQ is suitable for digital musical instruments that synthesize or process stereo audio at high sampling rates. The I2S input supports connection to a digital sound engine, and the 24-bit stereo converter provides a compact path toward line-level output circuitry. The nominal 192 kHz sampling specification and support for rates up to 200 kHz are useful when the instrument supports high-rate playback or effects processing. The three-wire serial control port can initialize programmable operating functions during system startup.
Рекомендуется
Digital Audio Test and Measurement
The PCM1782DBQ can be used in digital audio test equipment that generates or evaluates stereo analog outputs from an I2S source. Its 24-bit resolution and nominal 192 kHz sampling rate provide suitable conversion capability for precision signal-path development, while the three-wire control interface enables register-based configuration. Improved clock-jitter tolerance can assist repeatable measurements when the instrument must remain sensitive to timing disturbances. The compact 16-lead SSOP package also leaves room for the clock source, logic interface, output filtering, and measurement circuitry on a dense instrument board.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PCM1782DBQ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PCM1780DBQ | PCM1781DBQ |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 16-lead SSOP | 16-lead SSOP - same family package | 16-lead SSOP - same family package |
| DAC Architecture | Enhanced multilevel delta-sigma | Enhanced multilevel delta-sigma | Enhanced multilevel delta-sigma |
| Channel Configuration | Stereo, 2 channels | 8-channel DAC capability | Stereo family configuration |
| Clock Jitter Performance | Improved tolerance to clock jitter | Improved tolerance to clock jitter | Improved tolerance to clock jitter |
Ключевые отличия
- Complete programmable-function access through a register-based control port (против PCM1781DBQ)
- Stereo conversion matched to standard left and right audio channels (против PCM1780DBQ)
- High-rate family performance in a compact 16-lead SSOP (против PCM1780DBQ)
Заметки по проектированию
Route the I2S serial clock, serial data, and control signals as a compact digital group, and keep them away from the analog output and filtering network. Provide a continuous ground reference beneath the device and follow the manufacturer layout for bypass and output components. The three-wire control port and I2S path should originate from the same clocking domain to prevent data-boundary errors.
Design the external clock, data, and master-clock topology from the PCM1782 timing requirements rather than from generic I2S assumptions. Confirm edge timing, data alignment, and supported sampling modes for every operating rate, including 192 kHz and the stated 200 kHz upper rate. Series damping or source termination may be required when long PCB traces connect the converter to a remote audio processor.
Do not treat PCM1780DBQ or PCM1781DBQ as unconditional software-compatible replacements for PCM1782DBQ. PCM1780 changes the channel configuration, while PCM1781 uses a different control arrangement and a subset of programmable functions. Before replacing either device, verify the 16-pin assignments, analog-channel routing, register behavior, clock setup, and host firmware against the manufacturer documentation.
Place input bypass, digital-interface components, and analog-output network components close to their associated pins, following the manufacturer reference layout. Keep the SSOP on a stable ground plane and minimize return-path discontinuities beneath the converter. Since this is a precision signal-conversion device rather than a power component, thermal design should focus on moderate board temperature rise and copper continuity rather than forced-air cooling.
Информация о соответствии
PCM1782DBQ is an audio DAC and is not categorized as an automotive AEC-Q100 power device; specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals status is not stated in the product results.
