LC8900KQ

Ordering number : EN4128B CMOS LSI LC8900KQ Digital Audio Interface Receiver Preliminary Overview The LC8900KQ is a CMOS LSI circuit chip that can be used to enable the EIAJ CP-1201 formatted data transmission between digital audio equipment. It is used by the receiving end and operates synchronously with input signals. This chip demodulates input signals into normally-formatted signals. Applicational and Functional Concept Features On-chip PLL circuit: enables the LSI operation to be synchronous to the transmitted EIAJ format input signals. Four input pins and one output pin: The output pin enables the input data to be sent as they are. Two data output function modes: 20-bit data LSB first mode and 16-bit data MSB first mode. Four output clocks: Bit clock, LRCK, 384Fs and 256Fs. All these clocks are synchronized to the data. Various signal outputs: copy inhibit, emphasis on:off control, user’s bit, validity flag and sampling frequency. LPF time constant select mode: This function can be used in the PLL lock-up state. Error detect signal output: If an input data error is detected, this LSI circuit chip outputs the error signal. In this case, the previous data will be output by the chip. Lock-up signal output: This signal is output when the internal PLL (Phase Locked Loop) block of the LSI circuit chip is locked. The chip has the pin to receive a signal for stopping the PLL operation. Control and processing mode via microcontroller interface: input pin ...