Read Sharp LC-52X20E (serv.man5) Service Manual online
modulation, including sound AM and FM processing.
A/D converter capable of accepting direct IF integrated digital filtering and requires only a single 8 MHz channel SAW filter for 6, 7 and 8 MHz COFDM
signal reception, plus a 7-bit ADC for RF level indication.
ize the wide dynamic range. The DAC adopts the newly-developed advanced multi-bit architecture to achieve wider dynamic range and low outband
noise. It also incorporates the digital audio receiver (DIR) and transmitter (DIT) compatible with 192kHz and 24bit. The DIR automatically detects
Non-PCM data stream such as Dolby Digital (AC-3). For the digital audio output, ADC output or external digital input can be selected. The control is
set through the serial
level, it is possible to prevent sudden volume change. It is also provided with the “power limiter” which can set the output limit.
nal loop compensation. It is also provided with the stabilized 10V gate drive power supply for the boot strap charging circuit of the high-side N channel
MOSFET and the driver for the low-side synchronous rectification MOSFET.
clocks from a low-frequency crystal input. Using ICS’ VersaClockTM software to configure PLLs and outputs, the ICS275 contains a One-Time Pro-
grammable (OTP) ROM for field programmability. Programming features include VCXO, eight selectable configuration registers and up to two sets of
two low-skew outputs.