Sharp AQUOS LC-42LE40E, Руководство по обслуживанию

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LC-32LE40E-LC-42LE40E
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DVB-C Demodulator Features
ETSI 300 429, ITU J.83 Annex A, NorDig Unified, and C-Book compliant
Wide symbol rate support: 1 to 7 Msps
Supporting 16-, 32-, 64-, 128-, and 256-QAM
Full-digital timing/frequency with wide acquisition range
Automatic symbol rate and modulation type detection for fast channel scan
Excellent narrow-band interference rejection capability
Applications
Set-top boxes
Integrated digital televisions (iDTV)
Network Interface Modules (NIMs)
2.4 U602(TAS5717LPHPR)
General Description
The TAS5717/TAS5719 is a 10-W/15-W, efficient, digital audio-power amplifier for driving stereo bridge-tied speakers. One serial data input allows
processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a
wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers.
The TAS5717/9 is a slave-only device receiving all clocks from external sources. The TAS5717/TAS5719 operates with a PWM carrier between a 384-kHz
switching rate and a 352-KHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat
noise floor and excellent dynamic range from 20 Hz to 20 kHz.
Features
• Audio Input/Output
– TAS5717 Supports 2×10 W and TAS5719Supports 2×15 W Output
– Wide PVDD Range, From 4.5 V to 26 V
– Efficient Class-D Operation Eliminates Need for Heatsinks
– Requires Only 3.3 V and PVDD
– One Serial Audio Input (Two AudioChannels)
– I2C Address Selection via PIN (Chip Select)
– Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)
– External Headphone-Amplifier Shutdown Signal
– Integrated CAP-Free Headphone Amplifier
– Stereo Headphone (Stereo 2-V RMS Line Driver) Outputs DESCRIPTION
• Audio/PWM Processing
– Independent Channel Volume Controls With 24-dB to Mute
– Programmable Two-Band Dynamic Range Control
– 14 Programmable Biquads for Speaker EQ
– Programmable Coefficients for DRC Filters
– DC Blocking Filters
– 0.125-dB Fine Volume Support
• General Features
– Serial Control Interface Operational Without MCLK
– Factory-Trimmed Internal Oscillator for Automatic Rate Detection
– Surface Mount, 48-Pin, 7-mm × 7-mm HTQFP Package
– AD, BD, and Ternary PWM-Mode Support
– Thermal and Short-Circuit Protection
• Benefits
– EQ: Speaker Equalization Improves Audio Performance
– DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables Speaker Protection, Easy Listening, Night-Mode Listening
– DirectPath Technology: Eliminates Bulky DC Blocking Capacitors