Sharp LC-52SE94U Service Manual page 67

LC-52SE94U/LC-52SE941U/LC-65SE94U
1.7. IC8001 (RH-iXC376WJQZQ)
This LSI is FULL HIGH-DEFINITION 1080P DIGITAL TV SYSTEM-ON-A-CHIP.
It combines a cable/terrestrial 4/1024-QAM and 8/16-VSB receiver, a transport processor, a digital audio processor, a high definition (HD) MPEG
video decoder, 2D graphics processing, digital processing of analog video and audio, analog video digitizer and DAC functions, stereo high-fidelity
audio DACs, two HDMI receivers for 1080p 60 inputs, a 330-MHz millions of instructions per second (MIPS) processor, and a peripheral control unit
providing a variety of television control functions.
The cable/terrestrial receiver directly samples a tuner output with an analog-to-digital converter (ADC).
The LSI digitally resamples and demodulates the signal with recovered clock and carrier timing, filters and equalizes the data, and passes soft deci-
sions to an ATSC A/53 and ITU-T J.83 Annex A/B/C-compatible decoder.
It has an MPEG-2 Digital Video Broadcasting (DVB)-compliant transport processor with advanced section filtering capability, DVB descrambler, and
an MPEG-2 (MP@HL profile) video decoder.
Audio support includes a BTSC and a Dolby AC3/MPEG-2 Layer 1, 2, audio decoder.
The LSI provides analog and digital audio/video outputs.
A SPDIF output and a pair of analog outputs (L-R) are provided via the integrated audio DACs.
The NTSC analog video decoder is supported by its own motion adaptive deinterlacing and 3D comb filtering, including 1080i deinterlacing.
The LSI includes advanced 2D graphics processing.
Two transport stream inputs are included.
The LSI incorporates a complete MIPS32(r)-based microprocessor subsystem including caches with bridging to memory and a local bus, where
external peripherals can be attached.
Integrated peripherals include two USB 2.0, three UARTs, counter/timers and GPIO controllers.
1.8. IC8451 (RH-iXC318WJQZY)
This is 8k-bit EEPROM device including the HDCP key data.
1.9. IC8452 (RH-iXC418WJQZQ)
The 256M-bit page mode flash memory device stores the main CPU program.
7 – 2