71M6531D Datasheet, PDF (99/115 Pages) Teridian Semiconductor Corporation – Energy Meter IC

FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
5.4.9 Crystal Oscillator
Table 72: Crystal Oscillator Performance Specifications
Parameter
Maximum Output Power to Crystal ⁴
XIN to XOUT Capacitance ¹
Capacitance to DGND ¹
XIN
XOUT
Condition
Crystal connected
RTCA_ADJ = 0
Min Typ Max Unit
1
μW
3
pF
5
pF
5
pF
5.4.10 LCD DAC
Table 73: LCD DAC Performance Specifications
Parameter
Condition
VLCD Voltage
1 ≤ LCD_DAC ≤ 7
V_LCD = V3P3⋅ (1− 0.059 ⋅ LCD_DAC) − 0.019V
Min Typ Max Unit
-10
+10
%
5.4.11 LCD Drivers
The information in Table 74 applies to all COM and SEG pins with LCD_DAC[2:0] = 000.
Table 74: 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 75: Optical Interface Performance Specifications
Parameter
OPT_TX VOH (V3P3D-OPT_TX)
OPT_TX VOL
Condition
ISOURCE =1 mA
ISINK = 20 mA
Min Typ Max Unit
0.4
V
0.7
V
v1.2
© 2005-2009 TERIDIAN Semiconductor Corporation
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