参数资料
| 型号： | EVAL-ADE7953EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 49/72页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADE7953 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 已用 IC / 零件： | ADE7953 |
| 主要属性： | 3 通道 |
| 次要属性： | USB 接口 |
| 已供物品： | 2 板，CD |
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Data Sheet
ALTERNATIVE OUTPUT FUNCTIONS
ADE7953
The ADE7953 includes three output pins that are configured by
default to output power quality information.
Table 8. Alternative Outputs
Function
See This Section
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Pin 1 (ZX) provides a voltage channel zero-crossing signal,
as described in the Voltage Channel Zero Crossing section.
Pin 21 (ZX_I) provides a current channel zero-crossing
section.
Pin 20 (REVP) provides polarity information, as described
in the Reverse Power section.
Zero-crossing detection
(voltage channel)
Zero-crossing detection
(current channels)
Reverse power indication
Voltage sag detection
Active energy no-load
detection (Current Channel A)
To provide flexibility and to accommodate a variety of design
requirements, the ADE7953 can be configured to output a
variety of alternative power quality signals on any of these
three outputs. Alternative functions are configured using the
ALT_OUTPUT register (Address 0x110).
Pin 21, an d Pin 20. Note that the default functions of ZX, ZX_I,
and REVP can be configured to output on any one of Pin 1,
Pin 21, or Pin 20.
Active energy no-load
detection (Current Channel B)
Reactive energy no-load
detection (Current Channel A)
Reactive energy no-load
detection (Current Channel B)
Waveform sampling, data ready
Interrupt output (Current
Channel B)
As described in Table 8, the description of each function can be
found in the corresponding section of this data sheet. If an alter-
native output function is enabled on Pin 1, Pin 21, or Pin 20, the
function can be configured and will be performed as described
in the corresponding section. The alternative function will, how-
ever, appear as an unlatched output on Pin 1, Pin 21, or Pin 20.
To enable an alternative function, the ZX_ALT, ZXI_ALT, and
REVP_ALT bits in the ALT_OUTPUT register must be set. The
interrupt enable associated with the alternative output does not
need to be enabled in order for it to be present on Pin 1, Pin 21,
or Pin 20. Enabling an alternative output does not affect the
primary function of the feature.
Rev. B | Page 49 of 72
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