Sharp LC-39LE650E Service Manual page 49

MAJOR ICs INFORMATION ( continued )
Sub channel mix into left and right channels.
Selectable high- or low-bandwidth noise-shaping topologies.
Selectable clock input ratio.
96-kHz internal processing sample rate.
Thermal overload and short-circuit protection technology
Video apps: 576 x fs input mode supported.
IC 2702: Headphone Amplifier.
Part number: TS488IQT (ST MICRO)
Sharp code : RH-IXD542WJZZY.
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00083715.pdf
Ω Ω
Ω
Features:
Pop and click noise protection circuitry.
Operating range from VCC = 2.2 V to 5.5 V.
Standby mode active low (TS488) or high (TS489).
Output power:
– 120 mW at 5 V, into 16 Ω with 0.1% THD+N max (1 kHz).
– 55 mW at 3.3 V, into 16 Ω with 0.1% THD+N max (1 kHz).
Low current consumption: 2.7 mA max at 5 V.
Ultra-low standby current consumption: 10 nA typical.
High signal-to-noise ratio.
High crosstalk immunity: 102 dB (F = 1 kHz).
PSRR: 70 dB typ. (F = 1 kHz), inputs grounded at 5 V.
Unity-gain stable.
Short-circuit protection circuitry.
IC9552: USB 2.0 Hi-Speed Hub Controller
Part number: USB2514B-AEZG (SMSC)
Sharp code: VHI2514BAEZ-1Q
http://www.smsc.com/Downloads/SMSC/Downloads_Public/Data_Sheets/251xb.pdf
The SMSC USB251x hub is a family of low-power, OEM
configurable, MTT (multi transaction translator) 1 hub controller
IC products for embedded USB solutions. The "x" in the part
number indicates the number of downstream ports available. The
SMSC hub supports low-speed, full-speed, and hi-speed (if
operating as a hi-speed hub) downstream devices on all of the
enabled downstream ports.
Features
Full power management with individual or ganged power
control of each downstream port.
Fully integrated USB termination and pull-up/pull-down
resistors.
Supports a single external 3.3 V supply source; internal
regulators provide 1.2 V or 1.8 V internal core voltage.
On-chip driver for 24 MHz crystal resonator or external 24/48
MHz clock input.
Customizable vendor ID, product ID, and device ID.
ESD protection up to 4 kilovolts on all USB pins.
Supports self- or bus-powered operation.
USB251xB2 and USB251xBi products support the USB Battery Charging specification.
Package: 36-pin QFN (6x6 mm).
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LC-39/50LE650
LC-39/50LE651
LC-39/50LE652