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ADE7978 データシート(PDF) 10 Page - Analog Devices

部品番号 ADE7978
部品情報  Isolated Energy Metering Chipset for Polyphase Shunt Meters
PDF  125 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
Logo AD - Analog Devices

ADE7978 データシート(HTML) 10 Page - Analog Devices

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ADE7978/ADE7933/ADE7932/ADE7923
Data Sheet
Rev. D | Page 10 of 125
ADE7978 SPECIFICATIONS
VDD = 3.3 V ± 10%, GND = DGND = 0 V, XTALIN = 16.384 MHz, TMIN to TMAX = −40°C to +85°C, TTYP = 25°C.
Table 2.
Parameter1, 2
Min
Typ
Max
Unit
Test Conditions/Comments
CLOCK INPUT
All specifications for CLKIN = 16.384 MHz
Input Clock Frequency (CLKIN)
16.22
16.384
16.55
MHz
Minimum = 16.384 MHz − 1%, maximum =
16.384 MHz + 1%
XTALIN Logic Inputs
Input High Voltage, V
INH
2.4
V
Input Low Voltage, V
INL
0.8
V
XTALIN Total Capacitance3
40
pF
XTALOUT Total Capacitance3
40
pF
CLOCK OUTPUT
Output Clock Frequency at CLKOUT Pin
4.096
MHz
Duty Cycle
50
%
Output High Voltage, V
OH
2.4
V
I
SOURCE
4.8
mA
Output Low Voltage, V
OL
0.4
V
I
SINK
4.8
mA
LOGIC INPUTS—MOSI/SDA, SCLK/SCL,
SS/HSA, DATA_A, DATA_B, DATA_C,
DATA_N
Input High Voltage, V
INH
2.4
V
VDD = 3.3 V ± 10%
Input Current, I
IN
2
40
nA
Input = VDD = 3.3 V
Input Low Voltage, V
INL
0.8
V
VDD = 3.3 V ± 10%
Input Current, I
IN
5
180
nA
Input = 0 V, VDD = 3.3 V
Input Capacitance, C
IN
10
pF
LOGIC INPUT—RESET
Input High Voltage, V
INH
2.4
V
VDD = 3.3 V ± 10%
Input Current, I
IN
80
160
nA
Input = VDD = 3.3 V
Input Low Voltage, V
INL
0.8
V
VDD = 3.3 V ± 10%
Input Current, I
IN
−8
+11
µA
Input = 0 V, VDD = 3.3 V
Input Capacitance, C
IN
10
pF
LOGIC OUTPUTS—IRQ0, IRQ1, MISO/HSD,
CLKOUT, SYNC, VT_A, VT_B, VT_C, VT_N,
ZX/DREADY, RESET_EN
VDD = 3.3 V ± 10%
Output High Voltage, V
OH
2.4
V
VDD = 3.3 V
I
SOURCE
4.8
mA
Output Low Voltage, V
OL
0.4
V
VDD = 3.3 V ± 10%
I
SINK
4.8
mA
CF1, CF2, CF3/HSCLK
Output High Voltage, V
OH
2.4
V
VDD = 3.3 V ± 10%
I
SOURCE
8
mA
Output Low Voltage, V
OL
0.4
V
VDD = 3.3 V ± 10%
I
SINK
8.5
mA
POWER SUPPLY
For specified performance
VDD Pin
2.97
3.63
V
Minimum = 3.3 V − 10%, maximum = 3.3 V
+ 10%
I
DD
10.6
15.5
mA
1 See the Typical Performance Characteristics section.
2 See the Terminology section for a definition of the parameters.
3 XTALIN/XTALOUT total capacitances refer to the net capacitances on each pin. Each capacitance is the sum of the parasitic capacitance at the pin and the capacitance
of the ceramic capacitor connected between the pin and GND. See the ADE7978, ADE7933/ADE7932, and ADE7923 Clocks section for more information.



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