| Part No.： | AD1938 |
| Page： | 32 Pages |
| Size： | 456 KB |
| Manufacturer： | Analog Devices, Inc. |
| Logo： |  |
| Views： | 1 |
| Update Time： | 2024-11-19 09:52:40 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| AD1938YSTZ | Tray | 250 | 3 | 48 | -40°C ~ 105°C | 48-Lead LQFP (7mm x 7mm) | ||
| AD1938YSTZRL | Reel | 2000 | 3 | 48 | -40°C ~ 105°C | 48-Lead LQFP, 13” Tape and Reel | ||
| AD1938WBSTZ | Tray | 250 | 3 | 48 | -40°C ~ 105°C | 48-Lead LQFP (7mm x 7mm) | ||
| AD1938WBSTZ-RL | Reel | 2000 | 3 | 48 | -40°C ~ 105°C | 48-Lead LQFP, 13” Tape and Reel |
The AD1938 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with input and eight digital-to-analog converters (DACs) with single-ended output using the Analog Devices, Inc., patented multibit sigma-delta (Σ-Δ) architecture. An SPI port is included, allowing a microcontroller to adjust volume and many other parameters.
The AD1938 operates from 3.3 V digital and analog supplies. The AD1938 is available in a 48-lead (single-ended output) LQFP package. Other members of this family include a differential DAC output and I2C® control port version.
The AD1938 is designed for low EMI. This consideration is apparent in both the system and circuit design architectures. By using the on-board PLL to derive the master clock from the LR clock or from an external crystal, the AD1938 eliminates the need for a separate high frequency master clock and can also be used with a suppressed bit clock. The DACs and ADCs are designed using the latest Analog Devices continuous time architectures to further minimize EMI. By using 3.3 V supplies, power consumption is minimized, further reducing emissions.
