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參數(shù)資料
| 型號(hào)： | SM5879AV |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | 3rd-order , 2-channel D/A Converter |
| 中文描述： | 第三階，2通道D / A轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 17/20頁(yè) |
| 文件大?。?/td> | 137K |
| 代理商： | SM5879AV |
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SM5879AV
NIPPON PRECISION CIRCUITS—17
Attenuation
The SM5879AV loads the attenuation factor with
serial data by means of the microcontroller interface,
thus enabling attenuation operation.
The attenuation computation is performed by multi-
plying the output of the internal 7-bit UP/DOWN
counter output data by the signal data. When the con-
tents of the counter are DATT, gain can be expressed
by the following equations.
L channel
R channel
When DATT = 0, this becomes -
∞
.
When the attenuation factor is changed, it is
smoothly changed from the previous setting until it
reaches the value of the new setting as expressed by
the above equations. The time required to change
gain is approximately 1024 fs
≈
23.2 msec when the
time required to change one step of the attenuation
factor is approximately 8 / fs
≈
181.4 μsec over the
range 0 dB to -
∞
.
Figure 7. Method of setting the attenuation factor
MLEN
MCK
MDT
A0
(LSB)
A1
A2
A3
A4
A5
A6
(MSB)
0
D0
D1
D2
D3
D4
D5
D6
D7
Gain
20
DATT
127
log
×
[dB]
=
Gain
20
DATT
127
log
×
[dB]
=
Figure 8. Example of attenuation gain
Setting1
Setting2
Setting3
Setting5
Time
Setting4
(Gain)
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| SM5882-006-D-B-TR | 功能描述:板上安裝壓力/力傳感器 RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類型:Dual Radial Barbed, Same sides |
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