adau1381 Analog Devices, Inc., adau1381 Datasheet - Page 29

• Manufacturer Part Number: adau1381
• Description: Low-noise Stereo Codec With Enhanced Recording And Playback Processing
• Manufacturer: Analog Devices, Inc.

The ADC and DAC sampling rate can be set in Register 16407
(0x4017), Converter Control 0, Bits[2:0], converter sampling
rate. The sound engine sampling rate and serial port sampling
rate are similarly set in Register 16619 (0x40EB), sound engine
frame rate, Bits[3:0], sound engine frame rate, and Register
16632 (0x40F8), serial port sampling rate, Bits[2:0], serial port
control sampling rate, respectively.
Table 18 and Table 19 depict example sampling rate settings.
The (1 × 256) case is the base sampling rate.
Rev. A| Page 29 of 84
Table 18. Sampling Rates for 256 × 48 kHz Core Clock
Core Clock
12.288 MHz
Table 19. Sampling Rates for 256 × 44.1 kHz Core Clock
Core Clock
11.2896 MHz
Sampling Rate Divider
(1 × 256)
(6 × 256)
(4 × 256)
(3 × 256)
(2 × 256)
(1.5 × 256)
(0.5 × 256)
Sampling Rate Divider
(1 × 256)
(6 × 256)
(4 × 256)
(3 × 256)
(2 × 256)
(1.5 × 256)
(0.5 × 256)
Sampling Rate
48 kHz
8 kHz
12 kHz
16 kHz
24 kHz
32 kHz
96 kHz
Sampling Rate
44.1 kHz
7.35 kHz
11.025 kHz
14.7 kHz
22.05 kHz
29.4 kHz
88.2 kHz
ADAU1381