PCM1737E - 24-Bit 192kHz Stereo DAC | Texas Instruments
MPN： PCM1737E ✓ 啟用中PCM1737E 概覽
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.
直接替換替代品，適用於 PCM1737E — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
PCM1737E/2K
✅ 直接替換📋 參考替代品（不在目錄中）
PCM1737E/2KG4
✅ 直接替換📋 參考替代品（不在目錄中）
PCM1737EG4
✅ 直接替換📋 參考替代品（不在目錄中）
PCM1737E-1
✅ 直接替換📋 參考替代品（不在目錄中）
PCM1737E 最大額定值與電氣特性
| Converter Type | Stereo digital-to-analog converter |
| 解析度 | 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 |
| 安裝類型 | Surface mount |
| Channel Count | 2 channels |
| DigiKey Listing Sampling Rate | 200 kHz |
PCM1737E db 腳位配置指南
PCM1737E（db 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： PCM1737E.
請參閱 資料表 以查看完整腳位配置。
典型應用
PCM1737E 適用於 6 應用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.
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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.
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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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 PCM1737E — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Verified high-resolution stereo conversion performance (對比PCM1737E-1)
- Identical electrical ordering option for flexible reel procurement (對比PCM1737E/2K)
- Documented 106dB SNR for stereo conversion (對比PCM1737EG4)
設計說明
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.
合規資訊
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.