TEA6420DT STMicroelectronics

TEA6420 BUS-CONTROLLED AUDIO MATRIX SWITCH 5 Stereo Inputs 4 Stereo Ouputs Gain Control 0/2/4/6dB/Mute for each Output cascadable (2 different addresses) Serial Bus Controlled Very low Noise Very low Distorsion DESCRIPTION SHRINK DIP 24 The TEA6420 switches 5 stereo audio inputs on (Plastic Package) 4stereo outputs. All the switching possibilities are changed through ORDER CODE: TEA6420 2 the I C bus. SO28 (Plastic Micropackage) ORDER CODE: TEA6420D Figure 1. PIN CONNECTIONS GND 1 28 SDA GND 1 24 SDA 27 CAPACITANCE 2 SCL CAPACITANCE 2 23 SCL 3 26 ADDR V S V 3 22 ADDR S L1 4 25 R1 L1 4 21 R1 L2 5 24 R2 L2 5 20 R2 L3 6 23 R3 L3 6 19 R3 NC 7 22 NC L4 7 18 R4 NC 8 21 NC L4 9 20 R4 L5 8 17 R5 L5 10 19 R5 LOUT1 9 16 ROUT4 LOUT1 11 18 ROUT4 ROUT1 10 15 LOUT4 ROUT1 12 17 LOUT4 LOUT2 11 14 ROUT3 13 LOUT2 16 ROUT3 ROUT2 12 13 LOUT3 ROUT2 14 15 LOUT3 February 2006 1/7 1 6420-01.eps - 6420-02.epsTEA6420 Figure 2. BLOCK DIAGRAM RIGHT INPUTS T GAIN = 0/2/4/6dB E A 6 4 RIGHT 2 OUTPUTS 0 V SDA S C SUPPLY BUS DECODER SCL GND ADDR LEFT OUTPUTS GAIN = 0/2/4/6dB LEFT INPUTS 2/7 1 6420-03.eps