P0528 Terasic Technologies Inc, P0528 Datasheet - Page 40

• Manufacturer Part Number: P0528
• Description: BOARD DEV DE1 ALTERA
• Manufacturer: Terasic Technologies Inc
• Type: FPGAr

Specifications of P0528

• Contents: DE1 Board, Power Supply, USB Cable, Plastic cover and software
• For Use With/related Products: Cyclone II 2C20
• For Use With: P0033 - BOARD ADAPTER HSMC TO GPIOP0006 - BOARD ADAPTER THDB-SUMP0001 - MODULE DIGITAL CAMERA 5MP (D5M)P0307 - KIT DEV 4.3" LCD TOUCH PANEL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DE1

4.7 Using the 24-bit Audio CODEC
The DE1 board provides high-quality 24-bit audio via the Wolfson WM8731 audio CODEC
(enCOder/DECoder). This chip supports microphone-in, line-in, and line-out ports, with a sample
rate adjustable from 8 kHz to 96 kHz. The WM8731 is controlled by a serial I2C bus interface,
which is connected to pins on the Cyclone II FPGA. A schematic diagram of the audio circuitry is
shown in Figure 4.15, and the FPGA pin assignments are listed in Table 4.9. Detailed information
for using the WM8731 codec is available in its datasheet, which can be found on the manufacturer's
web site, and from the Datasheet folder on the DE1 System CD-ROM.
VGA_B[0]
VGA_B[1]
VGA_B[2]
VGA_B[3]
VGA_HS
VGA_VS
Figure 4.15. Audio CODEC schematic.
Table 4.8. ADV7123 pin assignments.
PIN_D11
PIN_A10
PIN_B10
PIN_A11
PIN_B11
PIN_A9
38
VGA H_SYNC
VGA V_SYNC
VGA Blue[0]
VGA Blue[1]
VGA Blue[2]
VGA Blue[3]
DE1 User Manual