44
27” TFT TV Service Manual
05/09/2005
13.4.
TSH22
13.4.1. General
Description
The TSH22 is a dual bipolar operational amplifier offering a single supply operation from 3V to 30V with
very good performances: medium speed (25MHz), unity gain stability and low noise.
The TSH 22 is therefore an enhanced replacement of standard dual operational amplifiers.
13.4.2. Pin
Connections
13.5.
CS4334
13.5.1. General
Description
The CS4334 family members are complete, stereo digital-to-analogue output systems including
interpolation, 1-bit D/A conversion and output analogue filtering in an 8-pin package. The
CS4334/5/6/7/8/9 support all major audio data interface formats and the individual devices differ only in
the supported interface format.
The CS4334 family is based on delta-sigma modulation, where the modulator output controls the
reference voltage input to an ultra-linear analogue low-pass filter. This architecture allows for infinite
adjustment of sample rate between 2 kHz and 100 kHz simply by changing the master clock frequency.
The CS4334 family contains on-chip digital de-emphasis, operates from a 5V power supply,
and requires minimal support circuitry. These features are ideal for portable CD players and other
portable playback systems.
13.5.2. Features
•
Complete Stereo DAC System: Interpolation, D/A, Output Analogue Filtering
•
24-Bit
Conversion
•
96 dB Dynamic Range
•
Low
Distortion
•
Low Clock Jitter Sensitivity
•
Single 5 V Power Supply
•
Filtered Line Level Outputs
•
On-Chip
Digital
De-emphasis
•
Soft Ramp to Quiescent Output Voltage
•
Functionally Compatible with CS4330/31/33
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