TDA8444is the D / A ( digital / analog ) converter IC produced by Philips, and it is used to convert digital signals to analog signals. 1. pin functions and dataTDA8444 IC uses 16-pin double-row package, andpin functions and data are shown in Table 1. 2. Typical application circuitTDA8444 and LM1036Nare matched byCPU to control the tone,
volume,two-channel electronic balance. The the typical application circuit isshown in Figure 1.