YD5020

www.DataSheet4U.com YOUDA INTEGRATED CIRCUIT YD5020 LOW VOLTAGE COMPANDER—YD5020 DESCRIPTION The YD5020 contains two variable gain circuits configured for compressing and expanding the dynamic range of an audio signal. One circuit is configured as an expander, while the other circuit can be configured as a compressor or expander. Each circuit has a full wave rectifier to provide average value information to a variable gain cell located in either the input stage or the feedback path. FEATURES *Low voltage operation: Vopr=1.8～5.0V *Decreasing external component *Built in compressor and expander mute circuit *Unity gain level set a 100mVrms *Response time adjustable BLOCK DIAGRAM 14 Vcc 13 12 11 10 9 8 _ Mute Bais + _ Mute + VB VB Gain RECT Gain RECT Vref 1 2 3 VB 4 5 6 GND 7 WuXi YouDa Electronics Co., Ltd Tel: Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China 86-510-85205117 86-510-85205106 Fax: 86-510-85205110 Website: www.e-youda.com SHENZHEN OFFICE Tel： 86-755-83740369 Fax： 86-755-83741418 1 of 4 2006-08-11 Ver 5.0 www.DataSheet4U.com YOUDA INTEGRATED CIRCUIT PIN NO. 1 2 3 4 5 6 7 SYMBOL Vref EXP MUTE EXP FILTER EXP OUTPUT EXP INPUT VB GND PIN NO. 8 9 10 11 12 13 14 SYMBOL COM FEED COM CF COM INPUT COM OUTPUT COM FILTER COM MUTE Vcc YD5020 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Operating Temperature Storage Temperature (Tamb=25℃) VALUE 10 410 -20～+75 -55～+150 UNIT V mW ℃ ℃ SYMBOL Vcc PD Topr...