参数资料
| 型号： | EVAL-ADE7878EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 16/100页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADE7878 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 是，DSP |
| 已用 IC / 零件： | ADE7878 |
| 次要属性： | USB 接口 |
| 已供物品： | 板 |
| 其它名称： | Q4472972 Q4684026 Q5015773 |
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ADE7854/ADE7858/ADE7868/ADE7878
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Data Sheet
NC 1
PM0 2
PM1 3
30
29
28
NC
IRQ0
CLKOUT
RESET 4
DVDD 5
DGND 6
IAP 7
IAN 8
IBP 9
NC 10
ADE78xx
TOP VIEW
(Not to Scale)
27
26
25
24
23
22
21
CLKIN
VDD
AGND
AVDD
VAP
VBP
NC
NOTES
1. NC = NO CONNECT.
2. CREATE A SIMILAR PAD ON THE PCB UNDER THE
EXPOSED PAD. SOLDER THE EXPOSED PAD TO
THE PAD ON THE PCB TO CONFER MECHANICAL
STRENGTH TO THE PACKAGE. CONNECT THE
PADS TO AGND AND DGND.
Figure 9. Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
1, 10, 11, 20,
21, 30, 31, 40
2
3
4
5
6
7, 8
9, 12
13, 14
15, 16
17
Mnemonic
NC
PM0
PM1
RESET
DVDD
DGND
IAP, IAN
IBP, IBN
ICP, ICN
INP, INN
REF IN/OUT
Description
No Connect. These pins are not connected internally. It is recommended to ground these pins.
Power Mode Pin 0. This pin, combined with PM1, defines the power mode of the
Reset Input, Active Low. In PSM0 mode, this pin should stay low for at least 10 μs to trigger a
hardware reset.
2.5 V output of the digital low dropout regulator (LDO). Decouple this pin with a 4.7 μF capacitor in
parallel with a ceramic 220 nF capacitor. Do not connect external active circuitry to this pin.
Ground Reference. This pin provides the ground reference for the digital circuitry.
Analog Inputs for Current Channel A. This channel is used with the current transducers and is
referenced in this document as Current Channel A. These inputs are fully differential voltage inputs
with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones
on Channel B and Channel C.
Analog Inputs for Current Channel B. This channel is used with the current transducers and is
referenced in this document as Current Channel B. These inputs are fully differential voltage inputs
with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones
on Channel C and Channel A.
Analog Inputs for Current Channel C. This channel is used with the current transducers and is
referenced in this document as Current Channel C. These inputs are fully differential voltage inputs
with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones
on Channel A and Channel B.
Analog Inputs for Neutral Current Channel N. This channel is used with the current transducers and
is referenced in this document as Current Channel N. These inputs are fully differential voltage
inputs with a maximum differential level of ±0.5 V. This channel also has an internal PGA, different
from the ones found on the A, B, and C channels. The neutral current channel is available in the
ADE7878 and ADE7868 . In the ADE7858 and ADE7854 , connect these pins to AGND.
This pin provides access to the on-chip voltage reference. The on-chip reference has a nominal
value of 1.2 V. An external reference source with 1.2 V ± 8% can also be connected at this pin. In
either case, decouple this pin to AGND with a 4.7 μF capacitor in parallel with a ceramic 100 nF
capacitor. After reset, the on-chip reference is enabled.
Rev. H | Page 16 of 100
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