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參數(shù)資料
| 型號： | ADE7753 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Active and Apparent Energy Metering IC with di/dt sensor interface |
| 中文描述： | 主動與迪視電能計量IC / dt的傳感器接口 |
| 文件頁數(shù)： | 29/38頁 |
| 文件大?。?/td> | 449K |
| 代理商： | ADE7753 |
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ADE7753
–29–
REV. PrF 10/02
PRELIMINARY TECHNICAL DATA
Figure 52 – Serial Interface Write Timing Diagram
Figure 53—12 bit Serial Write Operation
AD E 7753 Serial Read Operation
During a data read operation from the ADE7753 data is
shifted out at the DOUT logic output on the rising edge of
SCLK . As was the case with the data write operation, a data
read must be preceded with a write to the Communications
register.
With the ADE7753 in communications mode (i.e.
CS
logic
low) an eight bit write to the Communications register first
takes place. T he MSB of this byte transfer is a 0, indicating
that the next data transfer operation is a read. T he LSBs of
this byte contain the address of the register which is to be
read. T he ADE7753 starts shifting out of the register data on
the next rising edge of SCLK – see Figure 54. At this point
the DOUT logic output leaves its high impedance state and
starts driving the data bus. All remaining bits of register data
are shifted out on subsequent SCLK rising edges. T he serial
interface also enters communications mode again as soon as
the read has been completed. At this point the DOUT logic
output enters a high impedance state on the falling edge of the
last SC L K pulse. T he read operation may be aborted by
bringing the
CS
logic input high before the data transfer is
complete. T he DOUT output enters a high impedance state
on the rising edge of
CS
.
When an ADE7753 register is addressed for a read operation,
the entire contents of that register are transferred to the serial
port. T his allows the AD E 7753 to modify its on-chip
registers without the risk of corrupting data during a multi
byte transfer.
Note when a read operation follows a write operation, the
read command (i.e., write to communications register)
should not happen for at least 4μs after the end of the write
operation. If the read command is sent within 4μs of the write
operation, the last byte of the write operation may be lost.
T he is given as timing specification t
9
.
Figure 54– Serial Interface Read Timing Diagram
CS
SCLK
DIN
A4 A3 A2
A1 A0
DB7
Most Significant Byte
t
1
t
2
t
3
t
4
t
5
t
8
1
DB0
DB7
DB0
t
6
Least Significant Byte
t
7
t
7
0
0
Command Byte
SCLK
X
X
X
X
DB11 DB10
DB9
DB8
DIN
Most Significant Byte
DB3
DB2
DB1
DB0
DB7
DB6
DB5
DB4
Least Significant Byte
CS
SCLK
DIN
A4 A3 A2
A1 A0
t
1
t
11
t
11
t
9
DB7
DOUT
t
12
DB0
DB0
DB7
t
10
t
13
Most Significant Byte
Least Significant Byte
0
0
0
Command Byte
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| ADE7753ARS | Active and Apparent Energy Metering IC with di/dt sensor interface |
| ADE7753ARSRL | Active and Apparent Energy Metering IC with di/dt sensor interface |
| ADE7754 | ADE7754 |
| ADE7754AR | ADE7754 |
| ADE7754ARRL | ADE7754 |
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| ADE7753ARSZ | 功能描述:IC ENERGY METERING 1PHASE 20SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 能量測量 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:* |
| ADE7753ARSZ | 制造商:Analog Devices 功能描述:ENERGY METERING IC |
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