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PIN
PORT
NO
NAME
28
PWM0
23
PWM1
33
PWM2
6.3
Audio Amplifier (TDA2822M)
TDA2822M is a dual low-voltage power amplifier in 8-lead minidip package. It is used in bridge
configuration in 17mb27. The features of this amplifier are:
• Supply voltage down to 1.8 V
• Low crossover distortion
• Low quiescent current
• Bridge or stereo configuration
6.4
Headphone Amplifier (TDA1308T)
TDA1308T is an integrated class AB stereo headphone driver contained in an SO8, DIP8, or a TSSOP8
plastic package. SO8 package is used in 17mb27. The device is fabricated in a 1mm CMOS process. The
main features of this IC are:
• Wide temperature range
• No switch ON/OFF clicks
• Power supply ripple rejection
• Low power consumption
• Short-circuit resistance
• High performance
– high signal-to-noise ratio
– high slew rate
– low distortion
SIGNAL NAME TYPE FUNCTION
AN/DIG_DIM
O
BKL_ON/OFF
O
PVCC_ON/OFF
O
PC/HDMI_SW O
Table 6.2.1: MST5x7A-M port allocation
Figure 6.3.1: TDA2822M package
19
Analog or digital dimming control
Backlight On/Off Control
Panel Logic Power On/Off control
Video switching control
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