PCM1717E - 18-Bit 48 kHz Stereo DAC | Texas Instruments
料号： PCM1717E ✓ 量产中PCM1717E 概述
An audio DAC is a data-converter IC that transforms digital PCM audio samples into left- and right-channel analog voltages suitable for amplifiers, headphones, line outputs, or downstream audio-processing stages. Within the broader semiconductor hierarchy, the PCM1717E is an ADC/DAC and audio interface IC, while its delta-sigma implementation places it within digital-to-analog converters and sound-card signal-chain devices. Its 20-pin SSOP package provides a compact surface-mount form factor for multichannel consumer and industrial audio equipment.
The principal verified features include complete stereo conversion, 18-bit input-data support, 48 kHz operation, 8X digital-filter oversampling, a multilevel delta-sigma DAC, and an analog low-pass filter. These functions integrate the essential digital decoding and analog reconstruction stages into one device. The two-channel architecture reduces the need for separate converters when a design must reproduce a standard stereo program. The 20-SSOP package measures 0.209 inches, or 5.30 mm, in body width according to the distributor listing.
The PCM1717E combines a multi-level delta-sigma conversion stage with oversampled digital filtering. Digital filtering shapes the incoming PCM stream before conversion, while the analog low-pass filter suppresses high-frequency energy at the outputs. Because the supplied distributor and manufacturer-search data do not publish detailed dynamic-range, distortion, output-voltage, clock, power-supply, or channel-separation figures, those values remain unverified here and must be confirmed in the manufacturer datasheet before final analog, clock, or power-budget calculations are released.
Typical uses include digital audio player boards, multimedia systems, active speakers, compact consumer stereo equipment, and embedded audio interfaces. Its stereo DAC function is also relevant to USB or legacy digital-audio subsystems where an I2S-compatible source must be converted into analog left and right outputs. The verified distributor description identifies the interface as I2S-capable, while exact supported formats and electrical limits should be checked against the relevant revision of the manufacturer datasheet.
The primary design consideration is PCB implementation. The 20-pin SSOP footprint requires adequate copper, clean return paths, and correctly placed input and output capacitors; exact capacitor values, supported voltage rails, and output architecture must be taken from the datasheet rather than inferred. Clocking, digital-interface levels, analog grounding, and power sequencing should also be verified against the complete application circuit.
This page combines verified distributor pricing and package information, manufacturer-datasheet feature statements, sourced drop-in cross-reference data, and engineering-focused selection guidance. It distinguishes verified facts from unavailable parameters so engineers can accelerate sourcing without treating unconfirmed electrical values as design guarantees.
直接替换替代料： PCM1717E ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
PCM1717EG
✅ 直接替换📋 参考替代料（不在目录中）
PCM1717E/2K
✅ 直接替换📋 参考替代料（不在目录中）
PCM1718E
✅ 直接替换📋 参考替代料（不在目录中）
PCM1717E 最大额定值与电气特性
| Product Type | Stereo audio digital-to-analog converter |
| 分辨率 | 18 bit |
| Maximum Stated Audio Rate | 48 kHz |
| Channel Count | 2 channels |
| Digital Interface | I2S |
| Converter Architecture | Delta-sigma DAC |
| Digital Filter Oversampling Ratio | 8X |
| Input Data Format | 18-bit input data |
| DAC Structure | Multilevel delta-sigma DAC |
| Analog Output Stage | Analog low-pass filter |
| 封装 | 20-SSOP, 5.30 mm width |
| Package Body Width | 0.209 inch (5.30 mm) |
| 引脚数量 | 20 pins |
| 安装类型 | Surface mount |
PCM1717E 0.209 inch (5.30 mm) 引脚配置指南
PCM1717E（0.209 inch (5.30 mm) 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： PCM1717E.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PCM1717E 适用于 6 应用s: Digital Audio Player, Multimedia Speaker Interface, Active Speaker USB Audio, Compact Consumer Stereo Equipment, Instrumentation Audio Monitoring, Legacy Audio Expansion Card.
Digital Audio Player
The PCM1717E fits a digital audio player because it combines 18-bit input handling, two-channel delta-sigma conversion, an 8X-oversampling digital filter, and an analog low-pass filter in one 20-pin SSOP. A digital transport can provide I2S audio to the converter, which produces left and right analog outputs for a line amplifier or headphone stage. The verified data identifies 48 kHz operation and stereo conversion, although supply voltage, clocking, output swing, and capacitor values must be taken from the manufacturer datasheet before routing or analog gain calculations are finalized.
推荐
Multimedia Speaker Interface
PCM1717E is appropriate for a multimedia speaker interface where a digital audio source must become a stereo analog signal. Its 18-bit, two-channel DAC architecture preserves a conventional left/right output arrangement, while the integrated 8X digital oversampling and analog low-pass filter reduce the external conversion-chain complexity. The 20-SSOP package also supports compact board layouts. Before implementation, verify supported I2S timing, required master clock, acceptable logic levels, analog output topology, and supply voltage against the Texas Instruments datasheet.
推荐
Active Speaker USB Audio
The PCM1717E can serve as the stereo DAC stage in an active speaker connected to a USB or embedded digital-audio source. Its verified I2S interface, 18-bit data support, and 48 kHz capability align with common digital audio transports, while the analog low-pass filter provides the required reconstruction stage near the converter outputs. Layout must keep digital clock and data traces away from the analog outputs, with grounding and decoupling implemented according to the manufacturer application guidance. The complete pin map and recommended passive values are not present in the supplied sources and must not be guessed.
推荐
Compact Consumer Stereo Equipment
PCM1717E suits compact consumer equipment requiring two analog audio channels from a digital source. Its 20-pin SSOP body width of 5.30 mm supports space-conscious designs, while integrating the digital filter, multilevel delta-sigma DAC, and analog low-pass filter reduces the number of separate conversion blocks. For a production design, validate the supported sample-rate range, digital interface modes, analog output load capability, channel mapping, and power-supply arrangement. Those electrical details are not present in the verified distributor excerpts, so the official datasheet remains the controlling design document.
推荐
Instrumentation Audio Monitoring
PCM1717E can be evaluated for instrumentation audio-monitoring paths that require a stereo digital-to-analog conversion stage. The 18-bit input format and two-channel output provide a clear channel-separated architecture, while the analog low-pass filter helps reconstruct a baseband audio waveform after delta-sigma conversion. Designers must pay particular attention to analog grounding, output loading, clock jitter, and power-supply cleanliness. Since verified dynamic-range, distortion, channel-separation, and noise figures were not supplied, these specifications must be checked in the manufacturer datasheet before the device is accepted for precision monitoring.
推荐
Legacy Audio Expansion Card
PCM1717E is a practical candidate for adding stereo digital-to-analog output to an embedded or legacy audio expansion card. The 20-pin SSOP package, two-channel implementation, and I2S-oriented interface support a conventional digital-audio subsystem architecture. The card designer should validate signal levels, master-clock generation, left/right latch timing, output filtering, and grounding against the exact PCM1717E datasheet. The supplied verified data identifies 18-bit resolution, 48 kHz operation, and 8X oversampling, but does not provide enough pin-level information to approve a layout without the complete manufacturer pinout.
推荐
推荐产品汇总
工程参考数据： PCM1717E ——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 | PCM1717EG | PCM1717E/2K | PCM1718E |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Product Type | Stereo audio DAC | Stereo DAC | Stereo DAC | Stereo DAC |
| Resolution | 18 bit | 18 bit | 18 bit | 18 bit |
| Channel Count | 2 channels | 2 channels | 2 channels | 2 channels |
| Converter Architecture | Delta-sigma DAC | Delta-sigma DAC | Delta-sigma DAC | Delta-sigma DAC |
关键差异点
- Complete integrated stereo conversion chain （对比 PCM1718E)
- Directly documented complete replacement （对比 PCM1717EG)
- Verified 18-bit and 48 kHz position （对比 PCM1717E/2K)
- Compact 5.30 mm-wide SSOP implementation （对比 PCM1717EG)
设计说明
Treat the PCM1717E as a mixed-signal component and separate digital clock and data routing from the left and right analog outputs. Keep the digital interface away from output nodes, use a continuous ground reference, and place output-filter and bypass capacitors at the pins specified by the manufacturer application circuit. Because the verified excerpts do not include a complete pin map or capacitor table, do not approve the layout using guessed values.
Use the datasheet’s specified supply range and decoupling arrangement rather than assuming that a neighboring digital voltage is acceptable. Confirm supply sequencing, allowable input limits, power consumption, and the behavior of unused channels before schematic release. The supplied data verifies 48 kHz stereo operation but provides no electrical supply limits, so those values remain a mandatory pre-layout verification item.
Verify the required master clock, BCK and LRCK timing, I2S data alignment, and logic thresholds against the current manufacturer datasheet. Clock quality can affect a delta-sigma converter even when its nominal resolution is 18 bits. Route clocks over continuous reference planes where practical, avoid unnecessary stubs, keep the converter’s digital return path close to the device, and isolate noisy switching nodes from the audio outputs.
Do not assume that a converter described as pin-compatible is automatically a production-approved substitute. Confirm package drawing, terminal numbering, supply voltage, clock mode, channel mapping, analog output loading, and filter characteristics for every alternative. In particular, the supplied results identify PCM1717EG as a complete replacement, while PCM1718E appears only as a related family member and requires closer verification.
合规信息
The supplied product listings did not contain explicit compliance statements for PCM1717E. AEC-Q100 is not applicable because this is an audio converter IC rather than an automotive-qualified power device; no qualification claim was provided.
