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參數資料
| 型號： | TLV5639CDWRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 3.5 us SETTLING TIME, 12-BIT DAC, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數： | 3/22頁 |
| 文件大小： | 444K |
| 代理商： | TLV5639CDWRG4 |
www.ti.com
APPLICATION INFORMATION
GENERAL FUNCTION
2 REF
CODE
0x1000
[V]
PARALLEL INTERFACE
Address
Decoder
A(0–15)
IS
WE
D(0–15)
CS
LDAC
WE
D(0–11)
TMS320C2XX, 5X
TLV5639
Address
Decoder
A(0–15)
TCLK0
R/W
D(0–15)
CS
LDAC
WE
D(0–11)
TMS320C3X
TLV5639
IOSTROBE
REG
> = 1
REG
DATA FORMAT
TLV5639C
TLV5639I
SLAS189C – MARCH 1999 – REVISED JANUARY 2004
The TLV5639 is a 12-bit, single supply DAC, based on a resistor string architecture. It consists of a parallel
interface, a speed and power down control logic, a programmable internal reference, a resistor string, and a
rail-to-rail output buffer. The output voltage (full scale determined by reference) is given by:
Where REF is the reference voltage and CODE is the digital input value in the range 0x000 to 0xFFF. A power-
on reset initially puts the internal latches to a defined state (all bits zero).
The device latches data on the positive edge of WE. It must be enabled with CS low. Whether the data is written
to the DAC holding latch or the control register depends on REG. REG = 0 selects the DAC holding latch,REG =
1 selects the control register. LDAC low updates the DAC with the value in the holding latch. LDAC is an
asynchronous input and can be held low, if a separate update is not necessary. However, to control the DAC
using the load feature, there should be approximately a 5 ns delay after the positive WE edge before driving
LDAC low.
Figure 11.
The TLV5639 writes data either to the DAC holding latch or to the control register, depending on the level of the
REG input.
Data destination:
REG = 0
→ DAC holding latch
REG = 1
→ control register
11
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV5639CPW | 功能描述:數模轉換器- DAC Low Power 12-Bit 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 |
| TLV5639CPWG4 | 功能描述:數模轉換器- DAC Low Power 12-Bit 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 |
| TLV5639CPWR | 功能描述:數模轉換器- DAC Low Power 12-Bit 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 |
| TLV5639CPWRG4 | 功能描述:數模轉換器- DAC Low Power 12-Bit 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 |
| TLV5639I | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7 V TO 5.5 V LOW POWER 12-BIT DIGITAL-TO-ANALOG CONVERTERS WITH INTERNAL REFERENCE AND POWER DOWN |
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