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參數(shù)資料
| 型號： | DAC8544I |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | QUAD, 16-BIT, RAIL-TO-RAIL VOLTAGE OUTPUT, PARALLEL INTERFACE, DIGITAL-TO-ANALOG CONVERTER |
| 中文描述： | 四，16位，軌到軌電壓輸出，并行接口，數(shù)字模擬轉換器 |
| 文件頁數(shù)： | 16/20頁 |
| 文件大?。?/td> | 476K |
| 代理商： | DAC8544I |
www.ti.com
FEEDBACK PINS
For regular operation, the feedback pins (V
FBA
through V
FBD
) must be tied to their corresponding output pins
(V
OUTA
through V
OUTD
) at the load. For higher current applications sensitive to gain error, the feedback pin should
be routed to the target node, to sense the node voltage accurately (DAC8544 gain error is typically low, around 1
mV).
HOST PROCESSOR INTERFACING
DAC8544 to MSP430 Microcontroller
V
DD
0.1 F
10 F
V
DD
IOV
DD
0.1 F
10 F
IOV
DD
VFB
V
OUT
V
REF
+
0.1 F
1 to 10 F
V
REF
GND
IOGND
V
REF
A0
A1
PD
LDAC
RST
R/W
CS
16 Bits
8 Bits
8 Bits
D[15:0]
(Other Pins Omitted for Clarity)
P4[0:7]
P5[0:7]
P2:0
P2:1
P2:2
P2:4
P2:5
P2:6
P2:7
MSP430F149
DAC8544
V
OUT
DAC8544 to TMS320C5402 DSP
Figure 33 shows the connections between the DAC8544 and the TMS320C5402 digital signal processor. Data is
provided via the parallel data bus of the DSP while the DAC CS control input is derived from the decoded I/O
strobe signal. The IOSTRB in addition to the R/W and XF(I/O) signals control the data transmission to and from
the DAC as well as the LDAC control. With additional decoding, multiple DAC8544s can be connected to the
same parallel data bus of the DSP.
DAC8544
SLAS420–MAY 2004
Figure 32 shows a typical parallel interface connection between the DAC8544 and a MSP430 microcontroller.
The setup for the interface shown uses ports 4 and 5 of the MSP430 to send or receive the 16-bit data while bits
0-7 of port 2 provides the control signals for the DAC. When data is to be transmitted to the DAC8544, the data
is made available to the DAC via P4 and P5, and P2.1 is taken low. The MSP430 then toggles P2.0 from
high-to-low and back to high, transferring the 16-bit data to the DAC. This data is loaded into the DAC register by
applying a rising edge to P2.4. The remaining five I/O signals of P2 shown in the figure control the reset,
power-down, and data format functions of the DAC. Depending on the specific requirements of a given
application, these pins may be tied to IOGND or IOV
DD
, enabling the desired mode of operation.
Figure 32. DAC8544 to MSP430 Microcontroller
16
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DAC8544IPFB | 功能描述:數(shù)模轉換器- DAC Quad 16-Bit R-to-R Vltg Out Paral Intfc RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8544IPFBG4 | 功能描述:數(shù)模轉換器- DAC Quad 16-Bit R-to-R Vltg Out Paral Intfc RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8544IPFBR | 功能描述:數(shù)模轉換器- DAC Quad 16-Bit R-to-R Vltg Out Paral Intfc RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8544IPFBRG4 | 功能描述:數(shù)模轉換器- DAC Quad 16-Bit R-to-R Vltg Out Paral Intfc RoHS:否 制造商:Texas Instruments 轉換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| DAC8550 | 制造商:BB 制造商全稱:BB 功能描述:16-BIT, ULTRA-LOW GLITCH, VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER |
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