71M6531D_10 Datasheet, PDF (102/120 Pages) Teridian Semiconductor Corporation – Energy Meter IC

Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
5.4.9 Crystal Oscillator
Table 78: Crystal Oscillator Performance Specifications
Parameter
Maximum Output Power to Crystal ⁴
XIN to XOUT Capacitance ¹
Capacitance to GNDD ¹
XIN
XOUT
Condition
Crystal connected
RTCA_ADJ[6:0] = 0
Min Typ Max Unit
1
μW
3
pF
5
pF
5
pF
5.4.10 LCD DAC
Table 79: LCD DAC Performance Specifications
Parameter
Condition
Min Typ Max Unit
VLCD Voltage
V_LCD = V3P3⋅ (1− 0.059 ⋅ LCD_DAC) − 0.019V 1 ≤ LCD_DAC[2:0] ≤ 7
-10
+10
%
5.4.11 LCD Drivers
The information in Table 80 applies to all COM and SEG pins with LCD_DAC[2:0] = 000.
Table 80: LCD Driver Performance Specifications
Parameter
VLC2 Voltage
VLC1 Voltage^†,
Condition
With respect to VLCD¹
Min Typ
-0.1
⅓ bias
½ bias
With respect to 2*VLC2/3
-3
With respect to VLC2/2
-3
½ bias, minimum output level
VLC0 Voltage,
⅓ bias
With respect to VLC2/3
-4
VLC1 Impedance
∆ILOAD = 100 µA (Isink)
9
∆ILOAD = -100 µA (Isource)
9
VLC0 Impedance
∆ILOAD = 100 µA (Isink)
9
∆ILOAD = -100 µA (Isource)
9
1_{VLCD is V3P3SYS in MISSION mode and VBAT in BROWNOUT and LCD modes.}
† _{Specified as percentage of VLC2, the maximum LCD voltage.}
Max
+0.1
+2
+2
1.0
+1
15
15
15
15
Unit
V
% VLC2
% VLC2
V
%
kΩ
kΩ
5.4.12 Optical Interface
Table 81: Optical Interface Performance Specifications
Parameter
Condition
Min Typ
OPT_TX VOH (V3P3D-OPT_TX)
ISOURCE =1 mA
OPT_TX VOL
ISINK = 20 mA
Max
0.4
0.7
Unit
V
V
102
© 2005-2010 TERIDIAN Semiconductor Corporation
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