- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385935 > TLV5639C (Texas Instruments, Inc.) 2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH INTERNAL REFERENCE AND POWER DOWN PDF資料下載
參數(shù)資料
| 型號： | TLV5639C |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH INTERNAL REFERENCE AND POWER DOWN |
| 中文描述： | 2.7 V至5.5 V低功耗12位數(shù)字到模擬，具有內(nèi)部參考和斷電變換器 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大小： | 242K |
| 代理商： | TLV5639C |
TLV5639C, TLV5639I
2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG
CONVERTERS WITH INTERNAL REFERENCE AND POWER DOWN
SLAS189 – MARCH 1999
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
TLV5639 interfaced to TMS320C203 DSP
hardware interface
Figure 13 shows an example of the connection between the TLV5639 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 data is at address 0x0084 and the DAC control word is at address 0x0085 within
the I/O memory space of the TMS320C203.
LDAC is tied low so that the output voltage is updated on the rising WE edge.
A2
A3
A4
A6
IS
D(0–11)
5 V
A
B
C
G1
G2A
G2B
CS
REG
D(0–11)
Y1
WE
REF
To Other Devices Requiring
Voltage Reference
OUT
LDAC
WE
RLOAD
TMS320C203
74AC138
TLV5639
12
A0
Figure 13. TLV5639 to TMS320C203 DSP Interface Connection
software
Writing data or control information to the TLV5639 is done using a single command. For example, the line of
code which reads:
out 62h, dac_ctrl
writes the contents of address 0x0062 to the I/O address equated to
dac_ctrl
(0x0085, the address where
the DAC control register has been mapped).
The following code shows how to set the DAC up to use the internal reference and operate in FAST mode by
a write to the control register. Timer interrupts are then enabled and repeatedly generated every 205
μ
s to
provide a timebase for synchonizing the waveform generation. In this example, the waveform is generated by
simply incrementing a counter and outputting the counter value to the DAC data word once every timer interrupt.
This results in a saw waveform.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLV5639I | 2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH INTERNAL REFERENCE AND POWER DOWN |
| TLYE156P | InGaAlP Yellow Light Emission LED Lamp(銦砷化鋁磷黃色發(fā)光LED) |
| TLYE157P | InGaAlP Yellow Light Emission LED Lamp(銦砷化鋁磷黃色發(fā)光LED) |
| TLYE180P | InGaAlP Yellow Light Emission LED Lamp(銦砷化鋁磷黃色發(fā)光LED) |
| TLYH156F | LED |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV5639CDW | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12bit DAC w/V Ref 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 |
| TLV5639CDWG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12bit DAC w/V Ref 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 |
| TLV5639CDWR | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Low Power 12-Bit 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 |
| TLV5639CDWRG4 | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Low Power 12-Bit 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 |
| TLV5639CPW | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Low Power 12-Bit 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。