PCM1807PW - 24-Bit, 96kHz Stereo ADC | Texas Instruments
N.º da peça: PCM1807PW ✓ AtivoPCM1807PW Visão geral
An audio ADC is a signal-conversion IC that converts continuous analog voltage waveforms into digital audio samples. The PCM1807 sits within the ADC-DAC interface category, combining a delta-sigma modulator, digital decimation filter, and DC-blocking high-pass filter. This integrated filtering allows a stereo analog source to connect directly to a digital audio system while limiting out-of-band noise and removing DC offset from the input signal.
The principal specifications are 24-bit resolution, a maximum sampling rate of 96kHz, and two single-ended analog inputs. The analog input range is 3 Vp-p, while the converter uses 64-times oversampling and includes a digital decimation filter. These features make the device appropriate for consumer audio equipment, digital recording systems, sound-card designs, and embedded audio products requiring stereo PCM output.
The PCM1807 uses a delta-sigma modulation architecture to encode each analog input as a high-frequency bit stream. A digital decimation filter then reduces that stream to the required audio sample rate, while the high-pass filter removes the DC component of the input. Master and slave modes give the system designer control over whether the converter uses an externally supplied master clock and serial clock or operates according to its own clock relationships.
Typical applications include stereo audio capture, USB or microcontroller-based sound-card front ends, consumer playback equipment, and measurement products that accept line-level single-ended signals. The 96kHz sampling capability supports high-resolution digital audio workflows, while the 24-bit conversion format preserves fine amplitude detail for subsequent mixing, recording, or signal processing.
PCB implementation should preserve short, separated analog and digital return paths and place input filtering components close to the corresponding pins. The analog input network must also be designed for the converter's single-ended 3 Vp-p input range. Designers should use the manufacturer datasheet pin-description and typical-application diagrams when assigning tracks, grounding, and power-supply connections.
This page organizes the converter's verified electrical characteristics, package details, commercial information, application guidance, and verified replacement information into an engineering-focused resource. It also identifies the documented same-footprint option while avoiding unsupported cross-brand substitutions.
Alternativas drop-in para PCM1807PW — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
PCM1807PWG4
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PCM1807PW Classificações máximas e características elétricas
| Converter Type | Stereo delta-sigma audio ADC |
| Bit Resolution | 24 bit |
| Maximum Sampling Rate | 96 kSPS |
| Analog Input Channels | 2 channels |
| Analog Input Type | Single-ended voltage input |
| Analog Input Range | 3 Vp-p |
| Oversampling Ratio | 64 times |
| Decimation Filter | Integrated digital filter |
| DC Blocking | Integrated high-pass filter |
| Operating Modes | Master mode or slave mode |
| Digital Audio Interface | SPI-compatible serial audio interface |
| Encapsulamento | 14-pin TSSOP |
| Package Width | 4.40 mm |
| Package Length | 0.173 inch |
| Tipo de montagem | Surface mount |
| Status RoHS | Compliant |
Guia de Configuração de Pinos do PCM1807PW 0.173 inch
Configuração de pinos para PCM1807PW (pacote 0.173 inch). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para PCM1807PW.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
PCM1807PW é adequado para 6 aplicaçãos: Stereo Audio Capture Interface, USB Sound Card Front End, Consumer Audio Playback Equipment, Digital Recording System, Embedded Audio Processing, Instrumentation and Test Equipment.
Stereo Audio Capture Interface
The PCM1807PW fits a stereo audio-capture interface that accepts two single-ended sources and produces high-resolution digital samples. Its 24-bit resolution and 96kSPS maximum conversion rate preserve amplitude detail for recording, playback, or editing, while 64-times oversampling supports the integrated decimation stage. The 3 Vp-p input range must be respected through the preceding analog network. Place the converter close enough to the input circuitry to minimize noise pickup, and follow the manufacturer datasheet's reference application for grounding, filtering, and clock connections.
Recomendado
USB Sound Card Front End
PCM1807PW can serve as the analog-to-digital stage in a USB sound card, converting two single-ended audio channels at up to 96kSPS. The 24-bit conversion format provides a suitable data path for USB audio controllers and downstream digital signal processing. Its integrated high-pass filter removes input DC offset, while the digital decimation filter handles the oversampled modulator output. The implementation should maintain short analog traces, provide local supply bypassing, and route serial audio and clock signals away from the input network to reduce coupling.
Recomendado
Consumer Audio Playback Equipment
The PCM1807PW is suitable for consumer playback equipment that ingests stereo single-ended signals before digital processing or DAC conversion. A 96kSPS maximum rate supports high-resolution playback workflows, and the 24-bit output avoids reducing the available dynamic range to a lower-resolution digital stream at the conversion stage. The converter's master and slave operating modes allow clocking to be coordinated with a digital audio engine. Apply the manufacturer reference circuit and verify the analog input amplitude, digital levels, and power arrangement on the target PCB.
Recomendado
Digital Recording System
In a digital recording system, PCM1807PW converts a stereo analog source into 24-bit digital audio at rates up to 96kSPS for storage, editing, or transmission. The converter's 64-times oversampling and integrated decimation filter form the core of its delta-sigma signal path, while the high-pass filter removes DC that could otherwise consume signal range. For studio or laboratory use, keep the analog front end short and isolated from digital clocks. Validate the complete gain structure so the 3 Vp-p input range is not exceeded.
Recomendado
Embedded Audio Processing
PCM1807PW can feed an embedded processor with precise stereo audio samples for speech capture, sound recognition, notification playback, or machine monitoring. Its 24-bit resolution and 96kSPS capability support both conventional audio and higher-rate acquisition, while the serial interface allows digital data to be processed by a controller or dedicated audio engine. Clock synchronization must be designed for either master or slave operation. Use stable local decoupling and controlled return paths because high-speed serial activity can otherwise degrade the analog conversion performance.
Recomendado
Instrumentation and Test Equipment
PCM1807PW is appropriate for instrumentation that digitizes two single-ended audio or low-frequency analog channels with 24-bit resolution. The 96kSPS rate permits acquisition of signals within the converter's supported bandwidth, and the integrated decimation and DC-removal functions simplify the converter stage. Measurement accuracy still depends on the external input network, reference quality, and layout because the converter does not eliminate all analog conditioning requirements. Use shielded or tightly routed inputs when operating near switching power converters or digital processors.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PCM1807PW — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PCM1807PWG4 |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 14-pin TSSOP | 14-pin TSSOP - same package |
| Converter Type | Stereo delta-sigma ADC | Stereo delta-sigma ADC |
| Resolution | 24 bit | 24 bit |
| Maximum Sampling Rate | 96 kSPS | 96 kSPS |
| Analog Input Configuration | 2 single-ended channels | 2 single-ended channels |
| Analog Input Range | 3 Vp-p | 3 Vp-p |
| Oversampling Ratio | 64 times | 64 times |
| Digital Interface | SPI-compatible serial audio interface | SPI-compatible serial audio interface |
| PCB Modification Required | Not applicable | No - terminals and package are consistent |
Principais diferenciais
- Complete same-footprint replacement with matching conversion specifications (vs PCM1807PWG4)
- Two-channel single-ended input architecture (vs PCM1807PWG4)
- Integrated delta-sigma filtering chain (vs PCM1807PWG4)
Notas de projeto
Route the two single-ended analog inputs as short, symmetric traces and keep them away from the serial data, clock, and digital supply paths. Place input-filtering components close to the relevant PCM1807PW pins, and use a continuous ground reference for the analog section. The converter's integrated filters reduce signal-processing requirements, but they do not replace careful high-frequency layout around the analog inputs.
Design the analog and digital supply connections around the manufacturer datasheet's recommended application circuit and decoupling arrangement. Place high-frequency bypass capacitance physically close to the supply pins and minimize the loop formed by each capacitor and its connection. Verify rail tolerance, startup behavior, and analog-to-digital supply sequencing against the datasheet before production release.
Do not assume that a converter with the same resolution and sampling rate is a drop-in replacement. The confirmed PCM1807PWG4 option matches the 14-pin package, terminals, and functional characteristics, while other devices may use different power rails, clocking, or serial formats. Also maintain the specified 3 Vp-p analog input range and account for the DC-removal high-pass filter when the input contains significant sub-audio content.
Coordinate the serial interface and clock source with the connected digital controller so the PCM1807PW operates correctly in either master or slave mode. Keep clock routing controlled and provide a low-impedance ground beneath the relevant signal paths where the board stack-up permits. Validate sampling-edge timing and data validity at the intended 96kSPS operating condition rather than relying only on nominal protocol descriptions.
Informações de conformidade
RoHS-compliant status is identified in the Mouser listing for PCM1807PW. Other environmental and material-compliance fields require confirmation from the manufacturer or transaction documentation.