PCM1808PWR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | ADC, Audio |
| Number of Channels | 2 |
| Supplier Device Package | 14-TSSOP |
| Voltage - Supply | 2.7V ~ 3.6V, 4.5V ~ 5.5V |
| Voltage Supply Source | Analog and Digital |
| Data Interface | Serial |
| Resolution (Bits) | 24 b |
| Sampling Rate (Per Second) | 96k |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | PCM1808 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
PCM1808PWR ADC, Audio 24 b 96k Serial 14-TSSOP
The PCM1808PWR from Texas Instruments is a high-performance, low-cost, 24-bit stereo analog-to-digital converter (ADC) featuring a delta-sigma architecture with 64-times oversampling. This single-chip solution supports a sampling rate range of 8 kHz to 96 kHz and delivers exceptional audio fidelity with a typical SNR of 99 dB and THD+N of -93 dB. Designed for flexibility, it operates with dual power supplies (5V analog, 3.3V digital) and includes an on-chip high-pass filter for DC offset removal. The device offers a versatile PCM audio interface, supporting both master and slave modes with selectable data formats (24-bit I²S and Left-Justified). Its integrated analog anti-alias filter and clock-halt power-down/reset functionality make it ideal for space-constrained consumer audio applications requiring robust performance .
Built on an advanced CMOS process, the PCM1808PWR integrates a complete stereo ADC path into a compact 14-pin TSSOP package. Its architecture utilizes a delta-sigma modulator coupled with a digital decimation filter to achieve high-resolution conversion. The device accepts single-ended analog voltage inputs with a full-scale range of 3 Vp-p, simplifying the external signal conditioning circuitry. Key features include a flexible system clock input that supports frequencies of 256fs, 384fs, or 512fs, and an oversampling decimation filter with minimal pass-band ripple (±0.05 dB) and high stop-band attenuation (-65 dB). This combination ensures precise signal acquisition while minimizing external component count, providing a cost-effective solution for high-quality audio digitization .
Alternative Audio ADC IC Models
● PCM1808-Q1: Automotive-grade version of the PCM1808, offering enhanced reliability and qualification for automotive audio systems.
● PCM1802: A pin-compatible alternative from Texas Instruments, providing similar stereo ADC functionality with single-ended inputs.
● PCM1803/PCM1803A: Family variants offering comparable performance with slight variations in feature sets or packaging options.
● PCM1807: Another TI alternative featuring a delta-sigma architecture optimized for audio applications with specific performance tweaks.
