MSP430F6779A Datasheet, PDF (50/176 Pages) Texas Instruments – Polyphase Metering SoCs

MSP430F6779A, MSP430F6778A, MSP430F6777A, MSP430F6776A, MSP430F6775A
MSP430F6769A, MSP430F6768A, MSP430F6767A, MSP430F6766A, MSP430F6765A
MSP430F6749A, MSP430F6748A, MSP430F6747A, MSP430F6746A, MSP430F6745A
SLAS982 – MAY 2014
www.ti.com
5.8.7 LCD_C
Table 5-37. LCD_C Recommended Operating Conditions
PARAMETER
V_{CC,LCD_C,CP en,3.6}
V_{CC,LCD_C,CP en,3.3}
V_{CC,LCD_C,int. bias}
Supply voltage range, charge
pump enabled, V_LCD ≤ 3.6 V
Supply voltage range, charge
pump enabled, V_LCD ≤ 3.3 V
Supply voltage range, internal
biasing, charge pump disabled
V_{CC,LCD_C,ext. bias}
Supply voltage range, external
biasing, charge pump disabled
V_{CC,LCD_C,VLCDEXT}
Supply voltage range, external
LCD voltage, internal or
external biasing, charge pump
disabled
V_LCDCAP/R33
External LCD voltage at
LCDCAP/R33, internal or
external biasing, charge pump
disabled
C_LCDCAP
Capacitor on LCDCAP when
charge pump enabled
f_Frame
f_ACLK,in
C_Panel
V_R33
LCD frame frequency range
ACLK input frequency range
Panel capacitance
Analog input voltage at R33
V_R23,1/3bias
Analog input voltage at R23
CONDITIONS
LCDCPEN = 1, 0000 < VLCDx ≤ 1111
(charge pump enabled, V_LCD ≤ 3.6 V)
LCDCPEN = 1, 0000 < VLCDx ≤ 1100
(charge pump enabled, V_LCD ≤ 3.3 V)
LCDCPEN = 0, VLCDEXT = 0
LCDCPEN = 0, VLCDEXT = 0
LCDCPEN = 0, VLCDEXT = 1
LCDCPEN = 0, VLCDEXT = 1
LCDCPEN = 1, VLCDx > 0000
(charge pump enabled)
f_LCD = 2 × mux × f_FRAME
with mux = 1 (static), 2, 3, 4
100-Hz frame frequency
LCDCPEN = 0, VLCDEXT = 1
LCDREXT = 1, LCDEXTBIAS = 1,
LCD2B = 0
V_R13,1/3bias
Analog input voltage at R13
with 1/3 biasing
LCDREXT = 1, LCDEXTBIAS = 1,
LCD2B = 0
V_R13,1/2bias
V_R03
V_LCD-V_R03
V_LCDREF/R13
Analog input voltage at R13
with 1/2 biasing
LCDREXT = 1, LCDEXTBIAS = 1,
LCD2B = 1
Analog input voltage at R03
Voltage difference between
V_LCD and R03
External LCD reference voltage
applied at LCDREF/R13
R03EXT = 1
LCDCPEN = 0, R03EXT = 1
VLCDREFx = 01
MIN
NOM
2.2
2.0
2.4
2.4
2.0
2.4
4.7
4.7
0
30
32
2.4
V_R13
V_R03
V_R03
V_SS
V_R03 + 2/3
× (V_R33-
V_R03)
V_R03 + 1/3
× (V_R33-
V_R03)
V_R03 + 1/2
× (V_R33-
V_R03)
2.4
0.8
1.2
MAX UNIT
3.6 V
3.6 V
3.6 V
3.6 V
3.6 V
3.6 V
10 µF
100 Hz
40 kHz
10000 pF
V_CC+0.2 V
V_R33
V
V_R23
V
V_R33
V
V
V_CC+0.2 V
1.5 V
50
Specifications
Copyright © 2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: MSP430F6779A MSP430F6778A MSP430F6777A MSP430F6776A MSP430F6775A
MSP430F6769A MSP430F6768A MSP430F6767A MSP430F6766A MSP430F6765A MSP430F6749A
MSP430F6748A MSP430F6747A MSP430F6746A MSP430F6745A