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參數(shù)資料
| 型號(hào)： | TLV5614MPWREP |
| 廠(chǎng)商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 9 us SETTLING TIME, 12-BIT DAC, PDSO16 |
| 封裝： | GREEN, PLASTIC, TSSOP-16 |
| 文件頁(yè)數(shù)： | 5/32頁(yè) |
| 文件大小： | 674K |
| 代理商： | TLV5614MPWREP |
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TLV5614EP
2.7V TO 5.5V 12BIT 3 s QUADRUPLE DIGITALTOANALOG CONVERTER
WITH POWER DOWN
SGLS355 JUNE 2006
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
general function
The TLV5614 is a 12-bit single-supply DAC based on a resistor string architecture. The device consists of a
serial interface, speed and power-down control logic, a reference input buffer, a resistor string, and a rail-to-rail
output buffer.
The output voltage (full scale determined by external reference) is given by:
2REF
CODE
2n
[V]
where REF is the reference voltage and CODE is the digital input value within the range of 010 to 2n1, where
n = 12 (bits). The 16-bit data word, consisting of control bits and the new DAC value, is illustrated in the data
format section. A power-on reset initially resets the internal latches to a defined state (all bits zero).
serial interface
Explanation of data transfer: First, the device has to be enabled with CS set to low. Then, a falling edge of FS
starts shifting the data bit per bit (starting with the MSB) to the internal register on the falling edges of SCLK.
After 16 bits have been transferred or FS rises, the content of the shift register is moved to the DAC latch, which
updates the voltage output to the new level.
The serial interface of the TLV5614 can be used in two basic modes:
D Four wire (with chip select)
D Three wire (without chip select)
Using chip select (four-wire mode), it is possible to have more than one device connected to the serial port of
the data source (DSP or microcontroller). The interface is compatible with the TMS320 DSP family. Figure 16
shows an example with two TLV5614s connected directly to a TMS320 DSP.
TMS320
DSP
XF0
XF1
FSX
DX
CLKX
TLV5614
CS FS DIN SCLK
TLV5614
CS FS DIN SCLK
Figure 16. TMS320
E Interface
TMS320 is a trademark of Texas Instruments.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV5614PW | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2.7-V TO 5.5-V 12-BIT 3-mS QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN |
| TLV5614Y | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2.7-V TO 5.5-V, 12-BIT QUAD DAC IN WAFER CHIP SCALE PACKAGE |
| TLV5616 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN |
| TLV5616_12 | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2.7-V TO 5.5-V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN |
| TLV5616C | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN |
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