PCM3002E - Low-Power Stereo Audio Codec | Texas Instruments
MPN： PCM3002E ✓ 啟用中PCM3002E 概覽
A stereo audio codec is a mixed-signal semiconductor that converts two analog audio channels into digital data and converts digital audio data back into two analog output channels. In the signal-chain hierarchy, PCM3002E belongs to the audio codec category, combines analog-to-digital converters and digital-to-analog converters, and ultimately supports digital signal processing and audio playback systems.
The converter architecture uses delta-sigma modulation with 64-times oversampling. According to the Texas Instruments product information, the ADCs include a digital decimation filter, while the DACs use an 8-times oversampling digital interpolation filter. The 16/20-bit interface supports digital audio formats identified in the family documentation as I2S, L, right-justified I2S, and L/R formats, allowing the device to interface with common audio processors and digital audio buses.
The PCM3002 and PCM3003 family is manufactured using an advanced CMOS process and is positioned for cost-sensitive consumer applications where audio performance and low power consumption are important. The 24-pin SSOP package provides a compact surface-mount implementation for consumer audio boards, and the software-controlled line output provides an additional output-control option for system integration.
Typical applications include consumer stereo audio systems, portable media equipment, compact digital amplifiers, USB or portable audio accessories, television audio subsystems, and embedded audio interfaces. In each case, the device consolidates two ADCs, two DACs, filtering, and the digital serial interface into one package, reducing the number of separate converter components required on the printed circuit board.
When designing a PCB around the PCM3002E, use the manufacturer pin-description table and layout guidance to assign every signal, supply, ground, and reference connection. Decoupling should follow the datasheet recommendations, analog and digital return paths should be routed carefully, and unused inputs should be configured according to the application circuit rather than left electrically unterminated by assumption.
This product page combines the device architecture, package information, practical application guidance, sourcing options, and verified equivalent references to support faster component selection and board-level design. It also highlights where an exact replacement is available and when a proposed substitute requires additional engineering verification.
直接替換替代品，適用於 PCM3002E — 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。
PCM3002EG4
✅ 直接替換📋 參考替代品（不在目錄中）
PCM3002E 規格
| Device Type | Low-power stereo audio codec |
| ADC Resolution | 16/20 bit |
| DAC Resolution | 16/20 bit |
| ADC Channels | 2 channels |
| DAC Channels | 2 channels |
| ADC Modulation | Delta-sigma modulation |
| ADC Oversampling Ratio | 64 times |
| DAC Oversampling Ratio | 8 times |
| ADC Digital Filter | Digital decimation filter |
| DAC Digital Filter | 8-times oversampling digital interpolation filter |
| Analog Input Configuration | Single-ended |
| Analog Output Configuration | Single-ended |
| Line Output Control | Software controlled |
| Digital Audio Interface | I2S, L, right-justified I2S, and L/R formats |
| Process Technology | CMOS |
| 封裝 | 24-pin SSOP |
| Package Width | 5.30 mm |
| 安裝類型 | Surface mount |
PCM3002E 5.30 mm 腳位配置指南
PCM3002E（5.30 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： PCM3002E.
請參閱 資料表 以查看完整腳位配置。
典型應用
PCM3002E 適用於 6 應用s: Compact Stereo Recording System, Consumer Digital Audio Playback, USB and Portable Audio Accessory, Digital Amplifier Front End, Television Audio Subsystem, Industrial Audio Control Interface.
Compact Stereo Recording System
PCM3002E fits a two-channel recording product because it combines two 16/20-bit ADCs with 64-times oversampling and digital decimation in one 24-pin SSOP package. The paired ADC channels support simultaneous left and right capture from single-ended analog sources, while the shared codec reduces the number of external converter packages on a constrained board. Designers should allocate the analog input network, reference circuitry, grounding, and bypass components according to the Texas Instruments PCM3002 application diagram, then confirm that the controller’s clock and serial format match the selected codec mode.
推薦
Consumer Digital Audio Playback
The PCM3002E provides a practical playback path for consumer products requiring two analog outputs and a compact interface to a digital audio controller. Its two DAC channels, 8-times oversampling digital interpolation filter, and support for I2S, L, right-justified I2S, and L/R formats allow system designers to select a suitable serial mode. Software-controlled line output adds system-level control, while the 24-pin SSOP package simplifies board-area planning. Output filtering, load capability, and analog headroom must be validated against the target impedance and required signal level.
推薦
USB and Portable Audio Accessory
PCM3002E is suited to compact USB or portable audio accessories where two-channel capture and playback must be consolidated into a low-power IC. The device’s delta-sigma ADC and DAC paths, digital filters, and serial interface reduce the external converter count while supporting common audio data formats. A portable design still needs careful attention to supply voltage, ground partitioning, clock source purity, and analog input range. The manufacturer’s 24-pin SSOP layout guidance should be followed closely to minimize noise coupling into the conversion paths and preserve repeatable production performance.
推薦
Digital Amplifier Front End
PCM3002E can serve as the analog conversion stage ahead of a digital power amplifier in a compact stereo product. Two DAC channels provide symmetrical left and right outputs, while the 8-times oversampling interpolation filter supports the digital audio processing chain. The software-controlled line output allows the host to manage the output state, which can help reduce unnecessary activity in systems where channel muting is useful. The exact external filter, gain structure, and output impedance should be designed around the amplifier’s input requirements rather than assumed from generic codec examples.
推薦
Television Audio Subsystem
The integrated ADC and DAC channels make PCM3002E appropriate for television or set-top audio subsystems that process or pass through stereo sound. Its 24-pin SSOP package limits board footprint, and the choice of I2S, L, right-justified I2S, or L/R serial formats supports integration with television audio controllers. For designs that decode and regenerate audio, the 64-times ADC oversampling path and 8-times DAC interpolation path provide the core conversion functions. The implementation should confirm signal polarity, channel ordering, clock ratios, and mute behavior at the system interface.
推薦
Industrial Audio Control Interface
PCM3002E can support compact industrial monitoring equipment with one stereo analog input pair and one stereo analog output pair. Its integrated conversion functions are useful when a controller must acquire sensor-derived audio, relay it digitally, or return generated audio to an actuator or operator interface. The codec’s 24-pin SSOP package and broad family format selection simplify adaptation to embedded processors. Industrial deployments should still verify the exact operating-temperature grade, supply tolerances, isolation strategy, grounding, and EMC layout because the basic codec function does not itself provide industrial certification.
推薦
推薦產品摘要
工程參考資料，適用於 PCM3002E — 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 | PCM3002EG4 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 24-pin SSOP | 24-pin SSOP - same package |
| Device Type | Low-power stereo audio codec | Low-power stereo audio codec |
| ADC Channels | 2 channels | 2 channels |
| DAC Channels | 2 channels | 2 channels |
| Resolution | 16/20 bit | 16/20 bit |
| Digital Audio Interface | I2S, L, right-justified I2S, and L/R formats | I2S, L, right-justified I2S, and L/R formats |
| ADC Oversampling | 64 times | 64 times |
| DAC Oversampling | 8 times | 8 times |
| Line Output Control | Software controlled | Software controlled |
| Analog Input Configuration | Single-ended | Single-ended |
| Process Technology | CMOS | CMOS |
主要差異化特點
- Exact same-package family alternative (對比PCM3002EG4)
- Consolidated stereo conversion (對比PCM3002EG4)
- Matching delta-sigma signal path (對比PCM3002EG4)
設計說明
Use the Texas Instruments PCM3002 datasheet package drawing and pin-description table when assigning the 24-pin SSOP footprint. Place input, output, supply, bypass, and filter components in the positions shown by the manufacturer application circuit. Keep analog and digital return paths controlled, because mismatched grounding can couple switching or digital-interface activity into the single-ended converter inputs and outputs.
Configure the digital audio interface for a format supported by both endpoints: I2S, L, right-justified I2S, or L/R. Verify master-versus-slave clock operation, bit-clock ratio, data polarity, channel order, and the required relationship among the serial clock, bit clock, and word-sync signals before bringing up the interface. Incorrect timing configuration can appear as channel swapping, intermittent noise, or complete digital silence.
Decouple each supply domain as specified in the manufacturer PCM3002 application diagram and keep the analog and digital return paths appropriately separated. Confirm the device’s actual supply ranges, absolute maximum ratings, and power-up sequence against the exact datasheet before selecting regulators or capacitors. Do not infer analog and digital supply limits from a distributor description or from the PCM3003 family member.
Do not treat PCM3002E and PCM3003 as interchangeable solely because both are 24-pin SSOP stereo codecs. Likewise, distinguish PCM3002EG4 from a packaging code such as PCM3002E/2K when constructing a procurement BOM. Validate the exact ordering code, pin assignments, operating grade, and supported lifecycle before assembly so that a family-level comparison does not create a sourcing or production mismatch.
合規資訊
No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified for PCM3002E. Confirm the current material and environmental declarations on the Texas Instruments product page or through the Request a Quote form before regulatory use.
