TC9465F Karaoke Single-chip LSI Circuit

Published:2011/4/25 2:49:00 Author:TaoXi | Keyword: Karaoke, Single-chip, LSI | From:SeekIC

The TC9465F is one kind of Karaoke Single-chip LSIwhich is produced by the Toshiba company, and this device is designed for the LD/CD sing stereo equipment and VTR. 1.TC9465F's block diagram and pin function The TC9465F Manifold-circuit has three analog channels and a digital stereo input port and two simulation and output ports; the DAC using the Σ-△ modulation and oversampling mode; the built-channel ADC is the pre-filter amplifier with the 64Kbit delay RAM and the digital signal processor (DSP).etc. The TC9465F's inside block diagram and typical application circuit is shown as figure 1. This IC is in the 44-pin QFP package, the integrated circuit's pin functions and data are listed in Table 1. Table 1. The Pin Functions Of The TC9465F IC Figure 1. The TC9465F's inside block diagram and typical application circuit 2. The main electrical parameters of TC9465F The TC9465F IC built-in ADC's total harmonic distortion is THD=-65dB, the SNR is S/N = 78dB (typical); the TC9465F's 2-channel digital to analog converter (DAC) has the third analog filter with THD=-85dB, S/N=93dB(typical). The TC9465FR's input voltage (V(IN)) range is from -0.3V to (V(DD)+0.3) V, and the maximum power (Po) is 5mW. The operating voltage is 5±0.5V, the supply current is 48mA (typical value). 3.TC9465F typical application circuit The TC9465 manifold's typical application circuit is shown in Figure 1.



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