PCM1737E - 24-Bit 192kHz Stereo DAC | Texas Instruments
料号： PCM1737E ✓ 量产中PCM1737E 概述
An audio DAC is an interface integrated circuit that converts digital audio samples into left- and right-channel analog voltage signals. Within the broader signal-chain hierarchy, a DAC sits between a digital audio source and an analog amplifier or audio output stage. The PCM1737E is designed for high-resolution stereo playback where 24-bit word length, 192kHz sampling support, and low-noise reconstruction are important.
Key features include 24-bit resolution, sampling rates up to 192kHz, 106dB signal-to-noise ratio, stereo output, and I2S-compatible digital audio data input. Its SoundPlus branding identifies the device as an enhanced multi-level, delta-sigma audio converter. The 28-pin SSOP package provides a surface-mount option for compact consumer and professional audio equipment.
Technically, the PCM1737E uses an enhanced multi-level delta-sigma conversion structure to reconstruct analog audio from digital PCM samples. This architecture supports high-resolution audio while maintaining the straightforward digital and analog interfaces expected from a dedicated stereo DAC. The verified manufacturer information identifies the PCM1737 family as a 24-bit converter capable of 192kHz sampling, with a specified SNR of 106dB.
Typical uses include CD and DVD player analog-output stages, digital audio amplifiers, home-theater receivers, professional audio equipment, and other stereo systems that accept I2S audio data. In these systems, the PCM1737E can receive digital audio from a decoder or audio processor and provide differential or single-ended analog outputs to subsequent amplification circuitry, subject to the complete manufacturer application configuration.
A primary design consideration is verifying the exact package pinout, analog output configuration, digital interface timing, and required external components against the manufacturer datasheet before layout. Because the supplied web results confirm the 28-pin SSOP package but do not expose the complete numbered pin table, no pin assignments are asserted here. PCB design should preserve the manufacturer's recommended grounding, decoupling, and analog-output layout practices.
This product record combines verified manufacturer specifications, distributor identification, packaging information, and carefully qualified replacement guidance. It also separates confirmed drop-in findings from packaging-only ordering variants so engineers can assess board-level interchangeability without confusing reel or carrier codes with distinct converter designs.
直接替换替代料： PCM1737E ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
PCM1737E/2K
✅ 直接替换📋 参考替代料（不在目录中）
PCM1737E/2KG4
✅ 直接替换📋 参考替代料（不在目录中）
PCM1737EG4
✅ 直接替换📋 参考替代料（不在目录中）
PCM1737E-1
✅ 直接替换📋 参考替代料（不在目录中）
PCM1737E 最大额定值与电气特性
| Converter Type | Stereo digital-to-analog converter |
| 分辨率 | 24 bit |
| Maximum Sampling Rate | 192 kHz |
| Signal-to-Noise Ratio | 106 dB |
| Digital Input Interface | I2S |
| Conversion Architecture | Enhanced multi-level delta-sigma |
| Product Family | SoundPlus audio DAC |
| Package Type | 28-pin SSOP |
| Manufacturer Package Code | DB |
| 安装类型 | Surface mount |
| Channel Count | 2 channels |
| DigiKey Listing Sampling Rate | 200 kHz |
PCM1737E db 引脚配置指南
PCM1737E（db 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： PCM1737E.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PCM1737E 适用于 6 应用s: CD Player Analog Output, Home-Theater Receiver, Digital Audio Amplifier, Professional Audio Equipment, Digital Audio Player, Broadcast and Studio Playback.
CD Player Analog Output
PCM1737E fits the analog-output stage of a CD player because it accepts I2S digital audio while providing a stereo 24-bit conversion path with up to 192kHz sampling support. The confirmed 106dB SNR is suitable for a high-resolution playback chain, and the delta-sigma architecture is designed specifically for digital-to-analog reconstruction. The converter should be placed after the CD decoder and before the output amplifier, with its power, ground, clock, and analog connections implemented exactly as shown in the manufacturer reference configuration.
推荐
Home-Theater Receiver
PCM1737E is applicable to a home-theater receiver requiring a high-resolution stereo DAC for an I2S audio bus. Its 24-bit resolution, 192kHz sampling capability, and 106dB SNR support modern movie, music, and game audio paths while retaining compatibility with conventional digital audio routing. The design must establish the correct master or slave clock relationship, data alignment, and channel mapping, then compare the converter output with the receiver's downstream volume control and amplifier stage.
推荐
Digital Audio Amplifier
PCM1737E can feed a digital-input audio amplifier through its stereo analog outputs when the system uses a mixed-signal signal chain. The converter's 106dB SNR provides a cleaner starting point than a low-resolution audio interface, while 192kHz sampling support is useful for high-rate source material. Engineer the analog gain, output loading, anti-alias filtering, and digital volume strategy as a complete signal chain so that converter headroom and amplifier distortion are balanced.
推荐
Professional Audio Equipment
PCM1737E is suitable for professional playback and monitoring equipment that accepts a digital I2S source and requires a stereo 24-bit DAC. The 106dB SNR and 192kHz family capability offer useful headroom for high-resolution source material, while the delta-sigma reconstruction stage provides a conventional analog interface to line-level circuitry. For professional use, verify the exact noise measurement conditions, output topology, clock jitter sensitivity, and channel-matching behavior against the datasheet and prototype measurements.
推荐
Digital Audio Player
PCM1737E fits a portable or networked digital audio player that decodes audio into I2S and requires high-quality stereo analog output. The 24-bit interface and 192kHz sampling support accommodate lossless and high-resolution content, and the confirmed 106dB SNR supports clean conversion into a headphone or line amplifier. The primary design challenge is supplying clean power and a low-jitter clock while following the manufacturer's recommended SSOP-28 layout and output-filter recommendations.
推荐
Broadcast and Studio Playback
PCM1737E can serve as the final stereo conversion stage in broadcast, studio, and media-playback equipment receiving I2S audio. Its 24-bit, 192kHz capability and 106dB SNR support high-resolution production workflows, provided the surrounding clocking and analog circuitry preserve those specifications. Validate real-world behavior with the intended sample rates and digital filters, check output settling and channel alignment, and isolate analog and digital return paths to prevent converter noise from reaching the line stage.
推荐
推荐产品汇总
工程参考数据： PCM1737E ——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 | PCM1737E/2K | PCM1737E/2KG4 | PCM1737EG4 | PCM1737E-1 |
|---|---|---|---|---|---|
| Package | 28-pin SSOP (DB) | 28-pin SSOP (DB) | 28-pin SSOP (DB) | 28-pin SSOP (DB) | 28-pin SSOP (DB) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Ordering Configuration | PCM1737E orderable designation | 2K reel or carrier configuration | 2K reel or carrier configuration with G4 suffix | G4 ordering suffix | -1 family suffix |
关键差异点
- Verified high-resolution stereo conversion performance （对比 PCM1737E-1)
- Identical electrical ordering option for flexible reel procurement （对比 PCM1737E/2K)
- Documented 106dB SNR for stereo conversion （对比 PCM1737EG4)
设计说明
Use the manufacturer PCM1737 SSOP-28 land pattern and pin table without substituting an inferred generic SSOP footprint. Place input, output, and bypass components according to the datasheet reference circuit, keep digital clock and data routes away from the analog outputs, and provide a continuous ground reference beneath the device where the recommended layout allows. Because the supplied excerpts do not contain the complete numbered pinout, schematic and PCB review must include a direct comparison with the current manufacturer PDF.
Treat I2S data, bit clock, and master clock as a coordinated timing interface rather than independent signals. Confirm the PCM1737 master/slave role, supported sampling-rate mode, data alignment, and channel ordering before PCB release. Provide short, controlled clock routes and use the manufacturer's recommended source and load arrangements; otherwise setup margin or channel timing may vary even when the nominal 24-bit and 192kHz capabilities appear correct in the distributor metadata.
Do not treat PCM1737E, PCM1737E/2K, PCM1737E/2KG4, and PCM1737EG4 as electrically distinct upgrade paths merely because their order codes differ. The supplied comparison information describes matching packages and terminals, and the Texas Instruments ordering page explicitly identifies PCM1737E/2K as the same product in another carrier configuration. Procurement alternatives should therefore be selected from the qualified ordering table using reel quantity, carrier method, lifecycle, and authorized-channel status.
合规信息
The supplied verified search results do not explicitly state PCM1737E compliance or automotive-qualification status. Check the current Texas Instruments product, ordering, and quality documentation for the exact orderable part.