ES9038Q2M

PCM1794 ↔ ES9038Q2M

PCM1794: 24-bit 192kHz Advanced Segment DAC, 132dB SNR, THD+N -113dB, 8x oversampling digital filter, differential current output, hardware/software control, operating 5V analog/3.3V digital, SSOP-28. ES9038Q2M: 32-bit mobile DAC, HyperStream III, 129dB SNR (mono), THD+N -122dB, programmable digital filter, integrated I/V converter, I2C/SPI control, QFN-32. Отличия: PCM1794 — legendary Hi-Fi DAC с current output (требует внешний I/V + post-amp), ES9038Q2M — voltage output с integrated I/V. Разрядность: PCM1794 24-bit effective (marketing 32-bit), ES9038Q2M true 32-bit processing. SNR: PCM1794 132dB (mono), ES9038Q2M 129dB — comparable. Sampling: PCM1794 до 192kHz, ES9038Q2M до 768kHz PCM / 22.4MHz DSD. Output: PCM1794 differential current (2.5mA p-p), ES9038Q2M single-ended/differential voltage. Control: PCM1794 simple pin control + SPI, ES9038Q2M I2C/SPI. Критично: полностью разные схемы включения — PCM1794 требует транзисторный I/V stage, ES9038Q2M может работать напрямую.