lm4921itlx National Semiconductor Corporation, lm4921itlx Datasheet - Page 14

• Manufacturer Part Number: lm4921itlx
• Description: Low Voltage I2s 16-bit Stereo Dac With Stereo Headphone Power Amplifiers And Volume Control
• Manufacturer: National Semiconductor Corporation

LM4921ITL DEMO BOARD OPERATION
The LM4921ITL demo board is a complete evaluation platform (Note 10), designed to give easy access to the control pins of the
part and comprise all the necessary external passive components. There are separate analog and digital supply connectors, SPI
interface bus (J1) for the control lines, I
2
S interface bus (J2) for full-range digital audio, stereo headphone output (J3), and an
external MCLK input (P1) for use in place of the crystal on the demoboard.
200486g2
FIGURE 2. LM4921ITL Demo Board Schematic
Note 10: Parallel Port SPI Interface Card and control software available.
www.national.com
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