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參數資料
| 型號： | TLV5616IDG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 9 us SETTLING TIME, 12-BIT DAC, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數： | 5/28頁 |
| 文件大小： | 698K |
| 代理商： | TLV5616IDG4 |
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TLV5616C, TLV5616I
2.7V TO 5.5V LOW POWER 12BIT DIGITALTOANALOG
CONVERTERS WITH POWER DOWN
SLAS152D DECEMBER 1997 REVISED APRIL 2004
13
WWW.TI.COM
APPLICATION INFORMATION
TLV5616 interfaced to TMS320C203 DSP
hardware interfacing
Figure 17 shows an example how to connect the TLV5616 to a TMS320C203 DSP. The serial interface of the
TLV5616 is ideally suited to this configuration, using a maximum of four wires to make the necessary
connections. In applications where only one synchronous serial peripheral is used, the interface can be
simplified even further by pulling CS low all the time as shown in the figure.
FS
DIN
SCLK
OUT
REFIN
CS AGND
VDD
REF
FS
DX
CLKX
TMS320C203
TLV5616
RLOAD
Figure 17. TLV5616 to DSP Interface
software
No setup procedure is needed to access the TLV5616. The output voltage can be set using just a single
command.
out
data_addr, SDTR
where data_addr points to an address location holding the control bits and the 12 data bits providing the output
voltage data. SDTR is the address of the transmit FIFO of the synchronous serial port.
The following code shows how to use the timer of the TMS320C203 as a time base to generate a voltage ramp
with the TLV5616.
A timer interrupt is generated every 205
s. The corresponding interrupt service routine increments the output
code (stored at 0x0064) for the DAC, adds the DAC control bits to the four most significant bits, and writes the
new code to the TLV5616. The resulting period of the saw waveform is:
π = 4096 × 205 E-6 s = 0.84 s
;***************************************************************************************
;* Title
: Ramp generation with TLV5616
*
;* Version : 1.0
*
;* DSP
: TI TMS320C203
*
;*
(1998) Texas Instruments Incorporated
*
;***************************************************************************************
; I/O and memory mapped regs
.include ”regs.asm”
; vectors
.ps
0h
b
start
b
INT1
b
INT23
b
TIM_ISR
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相關代理商/技術參數 |
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| TLV5616IDGK | 功能描述:數模轉換器- DAC 12bit DAC w/Pwr D 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 |
| TLV5616IDGKG4 | 功能描述:數模轉換器- DAC 2.7-5.5 V Low Power 12-Bit 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 |
| TLV5616IDGKR | 功能描述:數模轉換器- DAC 2.7-5.5 V Low Power 12-Bit 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 |
| TLV5616IDGKRG4 | 功能描述:數模轉換器- DAC 2.7-5.5 V Low Power 12-Bit 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 |
| TLV5616IDR | 功能描述:數模轉換器- DAC 2.7-5.5 V Low Power 12-Bit 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 |
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