Datasheet

Data Sheet ADE7758
Rev. E | Page 17 of 72
TEST CIRCUITS
REF
IN/OUT
33nF
1kΩ
100nF
33nF
1kΩ
10µF
V
DD
VN
IAN
IBP
IBN
ICP
ICN
VAP
AVDD DVDD
VBP
VCP
AGND DGND
DOUT
SCLK
APCF
CLKOUT
CLKIN
CS
DIN
IRQ
10MHz
22pF
22pF
PS2501-1
13 11 2
1
TO FREQ.
COUNTER
14
23
20
IAP
RB
SAME AS
I
AP
, I
AN
9
8
7
10
16
15
14
100nF
10µF
33nF
1kΩ
1MΩ
220
V
33nF
1kΩ
825Ω
I
TO SPI BUS
34
19
5
6
24
23
21
22
18
12
SAME AS
I
AP
, I
AN
SAME AS V
AP
SAME AS V
AP
ADE7758
CURRENT
TRANSFORMER
17
VARCF
CT TURN RATIO 1800:1
CHANNEL 2 GAIN = +1
CHANNEL 1 GAIN R
B
110Ω
25Ω
42.5Ω
81.25Ω
04443-034
Figure 34. Test Circuit for Integrator Off
REF
IN/OUT
33nF
1kΩ
33nF
1kΩ
33nF
1kΩ
33nF
1kΩ
100nF
10µF
V
DD
VN
IAN
IBP
IBN
ICP
ICN
VAP
AVDD DVDD
VBP
VCP
AGND DGND
DOUT
SCLK
APCF
CLKOUT
CLKIN
CS
DIN
IRQ
10MHz
22pF
22pF
PS2501-1
13 11 2
1
TO FREQ.
COUNTER
14
23
20
IAP
SAME AS
I
AP
, I
AN
9
8
7
10
16
15
14
100nF
10µF
33nF
1kΩ
1MΩ
220
V
33nF
1kΩ
825Ω
TO SPI BUS
34
19
5
6
24
23
21
22
18
12
SAME AS
I
AP
, I
AN
SAME AS V
AP
SAME AS V
AP
ADE7758
I
di/dt SENSOR
17
VARCF
CHANNEL 1 GAIN = +8
CHANNEL 2 GAIN = +1
04443-035
Figure 35. Test Circuit for Integrator On