TDA7521 end equivalent, analog front end.
the functions ments an I2C-like protocol). Housed in a TQFP 44, 10 shown in figure below. TDA7521 uses the HF4CMOS technology and is supplied @5Vdc.
May 1998
This is pre.
Four input signals (AC*, BD*, E* and F*), coming from the pick-up (whose laser diode is driven and controlled by the de.
1.1 Clock source and generation The master clock to operate the device is 768 ×Fs (High Frequency mode, HFM) or 384 ×Fs (Low Frequency mode, LFM). Fs=44.1KHz for CD applications. In either case, the clock is generated by TDA7522: an internal low-jitt.
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