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ADE7978 Datasheet(PDF) 12 Page - Analog Devices

No. de pieza ADE7978
Descripción Electrónicos  Isolated Energy Metering Chipset for Polyphase Shunt Meters
PDF  120 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
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ADE7978 Datasheet(HTML) 12 Page - Analog Devices

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ADE7978/ADE7933/ADE7932
Data Sheet
Rev. 0 | Page 12 of 120
HSDC Interface Timing Parameters
VDD = 3.3 V ± 10%, GND = DGND = 0 V, XTALIN = 16.384 MHz, TMIN to TMAX = −40°C to +85°C.
Table 5.
Parameter
Symbol
Min
Max
Unit
HSA to HSCLK Edge
tSS
0
ns
HSCLK Period
125
ns
HSCLK Low Pulse Width
tSL
50
ns
HSCLK High Pulse Width
tSH
50
ns
Data Output Valid After HSCLK Edge
tDAV
40
ns
Data Output Fall Time
tDF
20
ns
Data Output Rise Time
tDR
20
ns
HSCLK Rise Time
tSR
10
ns
HSCLK Fall Time
tSF
10
ns
HSD Disable After HSA Rising Edge
tDIS
5
ns
HSA High After HSCLK Edge
tSFS
0
ns
MSB
LSB
INTERMEDIATE BITS
tSFS
tDIS
tSS
tSL
tDF
tSH
tDAV
tSR
tSF
tDR
HSD
HSCLK
HSA
Figure 7. HSDC Interface Timing
2mA
IOL
800µA
IOH
1.6V
TO OUTPUT
PIN
CL
50pF
Figure 8. Load Circuit for Timing Specifications



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