器件名称:
7442
功能描述:
TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR
文件大小:
154.29KB 共17页
简 介:
TDA7442 TDA7442D TONE CONTROL AND SURROUND DIGITALLY CONTROLLED AUDIO PROCESSOR 1 ■ ■ ■ ■ FEATURES 4 STEREO INPUTS INPUT ATTENUATION CONTROL IN 0.5dB STEP TREBLE AND BASS CONTROL TWO SURROUND MODE AVAILABLE WITH 4 SELECTABLE RESPONSES: – MUSIC – SIMULATED STEREO TWO SPEAKER ATTENUATORS: – 2 INDEPENDENT SPEAKER CONTROLS IN 1dB STEPS FOR BALANCE FACILITY – INDEPENDENT MUTE FUNCTION ALL FUNCTIONS PROGRAMMABLE VIA SERIAL BUS 2 MONITOR OUTPUT (ONLY FOR TDA7442) Figure 1. Packages SO-28 SDIP-32 Table 1. Order Codes Part Number TDA7442 TDA7442D TDA7442D013TR Package SDIP-32 SO-28 Tape & Reel ■ ■ ■ mable phase shifter. Control of all the functions is accomplished by serial bus. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. Thanks to the BIPOLAR/CMOS Technology used, Low Distortion, Low Noise and DC stepping are obtained. 2 DESCRIPTION The TDA7442/42D is volume tone (bass and treble) balance (Left/Right) processors for quality audio applications in TV and Hi-Fi systems. It reproduces surround sound by using a programFigure 2. Pin Connections (Top views) R-IN2 R_IN3 R_IN2 R_IN1 L_IN1 L_IN2 L_IN3 L_IN4 MUXOUTL IN(L) MUXOUT(R) IN(R) BIN(R) BOUT(R) BIN(L) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 D98AU948 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D01AU1247 32 31 30 29 28 27 26 R-IN3 R-IN4 L-OUT R-OUT AGND VS CREF SDA SCL DIGGND TREBLE-R N.C. TREBLE-L PS1 LP BOUT(L) 28 27 26 25 24 23 R_IN4 LOUT ROUT AGND VS CREF SDA SCL DIG-G……
