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參數(shù)資料
| 型號： | DAC8814IBDB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quad, Serial Input 16-Bit Multiplying Digital-to-Analog Converter |
| 中文描述： | 四，串行輸入16位乘法數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 27/31頁 |
| 文件大?。?/td> | 264K |
| 代理商： | DAC8814IBDB |
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P
PCB LAYOUT
In printed circuit board (PCB) layout, all analog ground A
GND
X should be tied together.
DAC8814
SBAS338–JANUARY 2005
Table 1. Control Logic Truth Table
(1)
CS
CLK
LDAC
RS
MSB
SERIAL SHIFT REGISTER
INPUT REGISTER
DAC REGISTER
H
X
H
H
X
No effect
Latched
Latched
L
L
H
H
X
No effect
Latched
Latched
L
↑
+
H
H
H
X
Shift register data advanced one bit
Latched
Latched
L
H
H
X
No effect
Latched
Latched
↑
+
L
H
H
X
No effect
Selected DAC updated with current SR con-
tents
Latched
H
X
L
H
X
No effect
Latched
Transparent
H
X
H
H
X
No effect
Latched
Latched
H
X
↑
+
H
H
X
No effect
Latched
Latched
H
X
L
0
No effect
Latched data = 0000h
Latched data = 0000h
X
↑
+
H
L
H
No effect
Latched data = 8000h
Latched data = 8000h
(1)
↑
+
= Positive logic transition;
X
= Do not care
Table 2. Serial Input Register Data Format, Data Loaded MSB First
(1)
B17
(MSB)
B0
Bit
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
(LSB)
Data
A1
A0
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
(1)
Only the last 18 bits of data clocked into the serial register (address + data) are inspected when the CS line positive edge returns to
logic high. At this point an internally-generated load strobe transfers the serial register data contents (bits D15-D0) to the decoded
DAC-input-register address determined by bits A1 and A0. Any extra bits clocked into the DAC8814 shift register are ignored, only the
last 18 bits clocked in are used. If double-buffered data is not needed, the LDAC pin can be tied logic low to disable the DAC registers.
Table 3. Address Decode
A1
0
0
1
1
A0
0
1
0
1
DAC DECODE
DAC A
DAC B
DAC C
DAC D
27
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| DAC8814IBDBR | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Ser Inp Multiplying Cnvtr RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8814IBDBRG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Serial Input Mult DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8814IBDBT | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Ser Inp Multiplying Cnvtr RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8814IBDBTG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 16-Bit Quad Serial Input Mult DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8814ICDB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Quad, Serial Input 16-Bit Multiplying Digital-to-Analog Converter |
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