Princeton Technology Corp.
Electronic Volume Controller IC
Tel: 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2253B
APPLICATION CIRCUIT 4
Single Power Supply
Note: Since the Buffer Amp between Att-1 and Att-2 is already 10dB Voltage Gain, higher input
level may cause OP Amp’s Output Clipping. To avoid unwanted distortion, the input signal level
applied at IN-1 should not be over 1 Vrms.
PT2253B v 1.7
Page 6
Revised October 1999