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ViewSonic Corporation
Confidential - Do Not Copy
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8
c) Analog to Digital Converter
The TSUM16AK-LF-1 chip has three ADC's (analog-to-digital converters), one for each color (red, green
and blue) . The analog RGB signals are connected to TSUM16AK-LF-1 as described below
Pin Name
Pin Number
Red +
59
Red -
58
Green +
56
Green -
55
Blue +
54
Blue -
53
d) OSD
:
The TSUM16AK-LF-1 has a fully programmable, high-quality OSD controller. The on-chip static RAM(256
different fonts at size of 12X18) stores the cell map and the cell definitions.
e) Panel Power Sequencing (VDDCTRL_2, on_BACKLIGHT) ( Pin 74~20)
The TSUM16AK-LF-1 has two dedicated outputs VDDCTRL_2 and on_backlight( Pin74 and Pin20) to
control LCD power sequencing once data and control signals are stable.
f) Inverter Brightness control (PWM1) (Pin 21)
The TSUM16AK-LF-1 has one PWM output PWM1 (Pin21) to control Inverter Brightness
Range.
g) Panel LVDS interface (Pin105~114, Pin118~127)
The TSUM16AK-LF-1 driver interface is highly programmable. It supports LVDS port for panel.
6.1.2 Audio controller TDA7496L (AU1)
The TDA7496L is a 2 channel audio power amplifier capable of delivering 2W of continuous average power
to an 8 ohms with less than 3% (THD) from a 12 V power supply. TDA7496L can directly drive 8 ohms
speaker , Features of the TDA7496L include linear volume(pin6), Stand-by(pin11) and mute(pin12)
functions.
Audio line-in are feed into pin 4,9 of the TDA7496L. The output power is controlled by the DC voltage of
AQ1.
Summary of Contents for Optiquest VS11578
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