參數(shù)資料
型號(hào): TLV5604PW
廠商: Texas Instruments, Inc.
英文描述: 2.7-V TO 5.5-V 10-BIT 3-mS QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS WITH POWER DOWN
中文描述: 2.7 V至5.5 V的10位3毫秒翻兩番數(shù)字至模擬與電源降壓轉(zhuǎn)換器
文件頁數(shù): 12/27頁
文件大小: 359K
代理商: TLV5604PW
TLV5604
2.7-V TO 5.5-V 10-BIT 3-
μ
S QUADRUPLE DIGITAL-TO-ANALOG CONVERTERS
WITH POWER DOWN
SLAS176A – DECEMBER 1997 – REVISED SEPTEMBER 1998
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
general function
The TLV5604 is a 10-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:
2 REF0x1000[V]
Where REF is the reference voltage and CODE is the digital input value within the range of 0x000 to 0xFFF.
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 TLV5604 can be used in two basic modes:
Four wire (with chip select)
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 family. Figure 15 shows
an example with two TLV5604s connected directly to a TMS320 DSP.
TMS320
DSP
XF0
XF1
FSX
DX
CLKX
TLV5604
CS
FS DIN SCLK
TLV5604
CS
FS DIN SCLK
Figure 15. TMS320 Interface
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