The AD1934 is a high-performance single-chip that provides eight digital-to-analog converters (DACs) with single-ended outputs that can be controlled via SPI and support 24 bits and 8 kHz to 192 kHz sample rates.
The AD1934 is an eight‑channel, single‑ended output digital‑to‑analog converter that operates from a 3.3 V supply and includes an on‑chip PLL for master‑clock generation. It offers low EMI design, log‑volume control, click‑less mute, and SPI‑controlled configuration, making it suitable for automotive and consumer audio applications.
The document provides detailed specifications such as supply voltages, dynamic range, output voltage, and timing parameters, along with functional block diagrams, pin descriptions, and absolute maximum ratings. Test conditions and performance data are presented for temperatures from –40 °C to +125 °C.
| Supply Voltage (AVDD, DVDD) | 3.3 V |
|---|---|
| Word Width | 24 bits |
| Master Clock | 12.288 MHz |
| Dynamic Range | 108 dB |
| Full‑Scale Output Voltage | 0.88 Vrms (2.48 Vpp) |
| Operating Temperature Range | –40 °C to +125 °C |
The AD1934 operates from 3.3 V digital and analog supplies.
Yes, the device is qualified for automotive applications.
The AD1934 provides a dynamic range of 108 dB.
The master clock is 12.288 MHz (48 kHz sampling, 256×fs mode).