- 您現(xiàn)在的位置：買賣IC網 > PDF目錄385934 > TLV5619DW (Texas Instruments, Inc.) 2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN PDF資料下載
參數資料
| 型號： | TLV5619DW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN |
| 中文描述： | 2.7 V至5.5 V 12位并行數字至模擬轉換器與電源向下 |
| 文件頁數： | 14/18頁 |
| 文件大小： | 251K |
| 代理商： | TLV5619DW |
TLV5619
2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER
WITH POWER DOWN
SLAS172C – DECEMBER 1997 – REVISED APRIL 2000
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
TLV5619 interfaced to TMS320C203 DSP
hardware interface
Figure 13 shows an example of the connection between the TLV5619 and the TMS320C203 DSP. The only
other device that is needed in addition to the DSP and the DAC is the 74AC138 address decoding circuit . Using
this configuration, the DAC address is 0x0084 within the I/O memory space of the TMS320C203.
LDAC is held low so that the output voltage is updated with the rising WE edge. The power down mode is
deactivated permanently by pulling PD to V
DD
.
A2
A3
A4
A6
IS
D(0–11)
5 V
A
B
C
G1
G2A
G2B
CS
D(0–11)
Y1
VDD
PD
WE
REFIN
Output
REF191
OUT
LDAC
WE
RLOAD
TMS320C203
74AC138
TLV5619
12
Figure 13. TLV5619 to TMS320C203 DSP Interface Connection
software
No setup procedure is needed to access the TLV5619. The output voltage can be set using one command:
out data_addr, DAC_addr
Where
data_addr
points to the address location (in this example 0x0060) holding the new output voltage data
and
DAC_addr
is the I/O space address of the TLV5619 (in this example 0x0084).
The following code shows, how to use the timer of the TMS320C203 as a time base to generate a voltage ramp
with the TLV5619. A timer interrupt is generated every 205
μ
s. The corresponding interrupt service routine
increments the output code (stored at 0x0060) for the DAC and writes the new code to the TLV5619. Only the
12 LSBs of the data in 0x0060 are used by the DAC, so that the resulting period of the saw waveform is:
τ
= 4096
×
205 E-6 s = 0.84 s
相關PDF資料 |
PDF描述 |
|---|---|
| TLV5619PW | 2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN |
| TLV5620C | QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS |
| TLV5620I | QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS |
| TLV5628C | OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS |
| TLV5628I | OCTAL 8-BIT DIGITAL-TO-ANALOG CONVERTERS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV5619-EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7 V TO 5.5 V 12-BIT PARALLEL DIGITAL-TO-ANALOG CONVERTER WITH POWER DOWN |
| TLV5619IDW | 功能描述:數模轉換器- DAC 12bit CMOS DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
| TLV5619IDWG4 | 功能描述:數模轉換器- DAC 12-Bit Sngl Channel DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
| TLV5619IDWR | 功能描述:數模轉換器- DAC 12-Bit Sngl Channel DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
| TLV5619IDWRG4 | 功能描述:數模轉換器- DAC 12-Bit Sngl Channel DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量: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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。