TDA744813TR STMicroelectronics

TDA7448 6 CHANNEL VOLUME CONTROLLER Figure 1. Package 1 FEATURES 6 CHANNEL INPUTS 6 CHANNEL OUTPUTS VOLUME ATTENUATION RANGE OF SO-20 0 TO -79dB VOLUME CONTROL IN 1.0dB STEPS Table 1. Order Codes 6 CHANNEL INDEPENDENT CONTROL Part Number Package ALL FUNCTION ARE PROGRAMMABLE VIA TDA7448 SO-20 SERIAL BUS TDA744813TR Tape & Reel 2 DESCRIPTION The TDA7448 is a 6 channel volume controller for Thanks to the used BIPOLAR/CMOS Technology, quality audio applications in Multi-Channels Audio Low Distortion, Low Noise and DC stepping are ob- Systems tained. Figure 2. Block Diagram 7 2 IN1 OUT1 VOLUME 50K 14 19 IN2 OUT2 VOLUME 50K 6 3 IN3 OUT3 VOLUME 50K 15 18 IN4 OUT4 VOLUME 50K 5 4 IN5 OUT5 VOLUME 50K 16 17 IN6 OUT6 VOLUME 50K 10 2 SCL 11 I C BUS GND 9 SUPPLY DECODER SDA 12 20 CREF ADDR 1 D02AU1396 V S REV. 3 June 2004 1/14TDA7448 Table 2. Absolute Maximum Ratings Symbol Parameter Value Unit V Operating Supply Voltage 10.5 V S T Operating Ambient Temperature 0 to 70 C amb T Storage Temperature Range -55 to 150 C stg Figure 3. Pin Connection (Top view) V 1 20 CREF S IN1 2 19 IN2 IN3 3 18 IN4 IN5 4 17 IN6 OUT5 5 16 OUT6 OUT3 6 15 OUT4 OUT1 7 14 OUT2 N.C. 8 13 N.C. SDA 9 12 ADDR SCL 10 11 GND D02AU1397 Table 3. Thermal Data Symbol Parameter Value Unit R thermal Resistance junction-pins 150 C/W th j-pin Table 4. Quick Reference Data Symbol Parameter Min. Typ. Max. Unit V Supply Voltage 4.75 9 10 V S V Max Input Signal Handling 2 Vrms CL THD Total Harmonic Distortion V = 1Vrms f =1KHz 0.01 0.1 % S/N Signal to Noise Ratio Vout = 1Vrms 100 dB S Channel Separation f = 1KHz 90 dB C Volume Control (1dB step) -79 0 dB Mute Attenuation 90 dB 2/14