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参数资料
| 型号： | TLV5639IPWG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 3.5 us SETTLING TIME, 12-BIT DAC, PDSO20 |
| 封装： | GREEN, PLASTIC, TSSOP-20 |
| 文件页数： | 3/23页 |
| 文件大小： | 477K |
| 代理商： | TLV5639IPWG4 |
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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| TLV5639IPWR | 功能描述:数模转换器- DAC Low Power 12-Bit DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| TLV5639IPWRG4 | 功能描述:数模转换器- DAC Low Power 12-Bit DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| TLV5639QDW | 制造商:Texas Instruments 功能描述:DAC 1CH RES-STRING 12-BIT 20SOIC - Rail/Tube |
| TLV5639QDWR | 制造商:Texas Instruments 功能描述:DAC 1CH RES-STRING 12-BIT 20SOIC - Tape and Reel |
| TLV571 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2.7 V TO 5.5 V, 1-CHANNEL, 8-BIT, PARALLEL ANALOG-TO-DIGITAL CONVERTER |
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