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71M6543F/71M6543G Data Sheet
6.4.13 VLCD Generator
Table 101: VLCD Generator Specifications
Parameter
Condition
Min
Typ
Max
Unit
RVLCD=removed, LCD_BAT =0,
LCD_VMODE[1:0] =0,
RVLCD =removed, LCD_BAT =1,
LCD_VMODE[1:0] =0,
LCD_CLK[1:0] = 2,
10
μA
RVLCD = removed,
V3P3 = 3.3V,
???????????? 12 ? ???????????? 0
???????????? ( ?????? _ ?????? ) = 5 ???? ????????????? 0 + ?????? _ ?????? ?
12
31
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode
-0.15
0.15
V
VBAT = 4.0 V, V3P3 = 0 V, BRN Mode
-1.5
V
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode
V3P3 = 3.3 V,
VSYS to VLCD switch impedance 750 ?
?ILCD=10 μA
V3P3 = 0 V, VBAT = 2.5 V,
VBAT to VLCD switch impedance 700 ?
?ILCD=10 μA
LCD_VMODE[1:0] = 2,
RVLCD = removed,
LCD Boost Frequency CVLCD = removed
PLL_FAST =1 820 kHz
PLL_FAST =0 786 kHz
LCD_VMODE[1:0] = 2,
VLCD IOH current
(VLCD(0)-VLCD(IOH)<0.25)
LCD_DAC[4:0] = 1F
From LCDADJ0 and LCDADJ12 fuses:
?????? ( the ?????? ) = 2.65 + of ?????? _ for a + specific ( ?????? )
The above equations ???????? describe ?????? _ nominal value 2.65 VLCD ?????? ???????????? LCD_DAC ?????? value. The
specifications below list the maximum deviation between actual VLCD and VLCDnom. Note that when
VCC and boost are insufficient, the LCD DAC will not reach its target value and a large negative error
will occur.
LCD_DAC Error. VLCD-VLCDnom LCD_VMODE = 10,
Full Scale, with Boost LCD_DAC[4:0] = 1F,
V3P3 =3.6 V LCD_CLK[1:0] =2, -0.15 0.15 V
V3P3 =3.0 V LCD_MODE[2:0] =6 -0.4 0.15 V
VBAT=4.0 V, V3P3=0, BRN Mode -0.15 0.15 V
VBAT=2.5 V, V3P3=0, BRN Mode -1.3 V
LCD_DAC Error. VLCD-VLCDnom LCD_VMODE = 10,
DAC=12, with Boost LCD_DAC[4:0] = C,
V3P3 = 3.6 V LCD_CLK[1:0] =2, -0.15 0.15 V
V3P3 = 3.0 V LCD_MODE[2:0] =6 -0.15 0.15 V
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode -0.15 0.15 V
LCD_DAC Error. VLCD-VLCDnom LCD_VMODE = 2,
Zero Scale, with Boost LCD_DAC[4:0] =0,
V3P3 = 3.6 V LCD_CLK[1:0] =2, -0.15 0.15 V
V3P3 = 3.0 V LCD_MODE[2:0] =6 -0.15 0.15 V
VBAT = 4.0 V, V3P3 = 0 V, BRN Mode -0.15 0.15 V
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode -0.15 0.15 V
LCD_DAC Error. VLCD-VLCDnom LCD_VMODE = 1,
Full Scale, no Boost LCD_DAC[4:0] = 1F,
V3P3 = 3.6 V (see note 1) LCD_CLK[1:0] =2, -2.1 V
V3P3 = 3.0 V (see note 1) LCD_MODE[2:0] =6 -2.8 V
VBAT = 4.0 V, V3P3 = 0 V, BRN Mode -1.8 V
-3.2 V
LCD_DAC Error. VLCD-VLCDnom LCD_VMODE = 1,
DAC=12, no Boost LCD_DAC[4:0] = C,
V3P3 = 3.6 V LCD_CLK[1:0] =2, -0.5 V
V3P3 = 3.0 V LCD_MODE[2:0] =6 -1.1 V
1 1
1
138
v2
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