Sharp LC-26SB25E Service Manual page 58

LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
· Support triple offset
· On-chip high-performance 10-bit ADC
· Excellent adjacent Channel interference (ACI) rejection capability
· Excellent Co-Channel interference (CCI) rejection capability
· MPEG-2 transport stream output in parallel or serial format
· Build-in PID filters
· Very low power consumption < 180mW
· Controlled by I2C interface
· Package : QFN48
1.9. U602 (WM8521H9GED/RV SOIC-14)
DESCRIPTION
The WM8521 is a 96kHz stereo DAC with an integrated output op-amp stage, designed to generate a 2.0Vrms output signal directly, so reducing external
component requirements in digital audio applications.
WM8521 comes into two variants WM8521HC and WM8521H9 which offers different line drive output capabilities. WM8521HC outputs 2Vrms at 12V
supply, while WM8521H9 outputs 2.0Vrms at 9V supply. WM8521HC/H9 are designed for cost sensitive consumer digital audio applications requiring
2Vrms line output.
A 24-bit multi-bit sigma delta DAC is used with oversampling digital interpolation filters. Digital audio input word lengths from 16-32 bits and sampling rates
from 8kHz to 96kHz are supported.
2
The audio interface supports I
The devices are controlled via a hardware interface which provides access to features including de-emphasis, mute and data formats. These devices are
pin equivalent and are available in a 14-pin SOIC package.
FEATURES
· Audio Performance
- DAC SNR 98dB ('A' weighted @ 48kHz)
- THD -81dB ('A' weighted @ 48kHz)
· DAC Sampling Frequency: 8kHz – 96kHz
· Pin Selectable Audio Data Interface Format
2
- I S, 16-bit Right Justified or 16bit DSP
· 2.0 Vrms output at 12V or 9V supply
· 8.2V to 13.2V Analogue, 2.7V to 3.6 Digital Supply
· 14-pin SOIC Package
APPLICATIONS
· Consumer digital audio applications requiring 2 Vrms output
- DVD Players
- Digital TV
- Digital Set Top Boxes
- A/V Receivers
1.10. U401 (MT8295AE LQFP-128)
FEATURES
■ PCMCIA/CI Interface
· Single slot PC Card interface
· Single slot CI interface
· 512 byte embedded buffer
■ Host Interface
· NAND flash interface
· Interrupt capability
· 3.3V logic levels
■ Transport Stream Interface
· MPEG2 compliant TS
· One parallel or two serial TS interface from demodulator
· Serial TS interface to MPEG2 decoder
· Parallel TS interface from/to CAM
· Supports serial to parallel TS conversion
· Supports parallel to serial TS conversion
■ Miscellaneous
· 27 MHz crystal
· 60 MHz clock input
· Integrated PLL
· 3.3/1.8V process
· 5V compatible I/Os for PC Card interface
· Supports additional 15 GPIOs
· LQFP 128-pin package
1.11. U390 (MX25L3205DMI-12G SOP-16)
S, Right Justified and DSP digital audio formats.
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