MST720A-A Просмотр технического описания (PDF) - Unspecified
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MST720A-A Datasheet PDF : 127 Pages
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Doc. No.: 2006050041
Switching Power and PWM Interface
MST720A/MST720A-A
Small Size LCD TV Processor with Video Decoder
Preliminary Data Sheet Version 0.3
Pin Name
PWMOUT2
FB2
SENSE2
PWMOUT1
FB1
SENSE1
CP2_FB
CP2_N
CP2_P
CP1_FB
CP1_N
CP1_P
REF_PWM
PGOOD
Pin Type
Output
Analog Input
Analog Input
Output
Analog Input
Analog Input
Analog Input
Output
Output
Analog Input
Output
Output
Output
Function
Pin
Switching Pulse Output for DC-DC Converter
26
Error Voltage Feedback Input Pin for PWM2;
27
voltage = 1.2V
Sense Circuit Connection for PWM2
28
Switching Pulse Output for DC-DC Converter
29
Error Voltage Feedback Input Pin for PWM1;
30
voltage = 1.2V
Sense Circuit Connection for PWM1
31
Error Voltage Feedback Input Pin for CP2; voltage = 1.2V 32
Charge Pump Negative Pulse for DC-DC Negative Voltage 33
Converter
Charge Pump Positive Pulse for DC-DC Negative Voltage 34
Converter
Error Voltage Feedback Input Pin for CP1; voltage = 1.2V 35
Charge Pump Negative Pulse for DC-DC Negative Voltage 36
Converter
Charge Pump Positive Pulse for DC-DC Negative Voltage 37
Converter
PWM Reference; voltage = 2.4V
38
Power Good Detector
39
Internal MCU Interface with Serial Flash Memory
Pin Name
SAR2
SAR1
SAR0
SCK
SDI
SDO
CSN
GPIO_P00
GPIO_P01
GPIO_P05
INT
SDA
Pin Type
Analog Input
Analog Input
Analog Input
Output
Output
Input w/ 5V-tolerant
Output
I/O w/ 5V-tolerant
I/O w/ 5V-tolerant
I/O w/ 5V-tolerant
Input
I/O w/ 5V-tolerant
Function
Pin
SAR Low Speed ADC Input 2
42
SAR Low Speed ADC Input 1
41
SAR Low Speed ADC Input 0
40
SPI Interface Sampling Clock
43
SPI Interface Data-In
44
SPI Interface Data-Out
45
SPI Interface Chip Select
46
General Purpose Input/Output; 4mA driving strength 57
General Purpose Input/Output; 4mA driving strength 58
General Purpose Input/Output; 4mA driving strength 56
Interrupt Input for IR Receiver
48
3-Wire Serial Bus Data
49
Doc. No.: 2006050041
-6-
Copyright © 2006 MStar Semiconductor, Inc. All rights reserved.
3/16/2006
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