參數(shù)資料
型號(hào)： DAC5674EVM
廠商： Texas Instruments
文件頁(yè)數(shù)： 13/39頁(yè)
文件大小： 0K
描述： EVAL MODULE FOR DAC5674
產(chǎn)品培訓(xùn)模塊： Data Converter Basics
標(biāo)準(zhǔn)包裝： 1
系列： CommsDAC™
DAC 的數(shù)量： 1
位數(shù)： 14
采樣率（每秒）： 400M
數(shù)據(jù)接口： 并聯(lián)
設(shè)置時(shí)間： 20ns
DAC 型： 電流
工作溫度： -40°C ~ 85°C
已供物品： 板
已用 IC / 零件： DAC5674
相關(guān)產(chǎn)品： DAC5674IPHPRG4-ND - IC DAC 14BIT 400MSPS 48-HTQFP
DAC5674IPHPR-ND - IC DAC 14BIT 400MSPS 48-HTQFP
DAC5674IPHPG4-ND - IC DAC 14BIT 400MSPS 48-HTQFP
296-15726-ND - IC DAC 14BIT 400MSPS 48-HTQFP
其它名稱： 296-30860
DAC5674EVM-ND
DAC5674
SLWS148A SEPTEMBER 2003 REVISED OCTOBER 2005
www.ti.com
20
PLLVDD
PLLGND
CLKGND
CLKVDD
CLK
CLKC
PFD
VCO
/1
/2
/4
/8
/2
D[13:0]
DIV[1:0]
PLLVDD
X4
PLLVDD
PLLLOCK
LPF
s
1
0
Clk
Buffer
Clk_4
y
DAC5674
Charge
Pump
s
1
0
Clk_2
y
Clk_1
y
Data
Figure 21. Clock Generation Functional Diagram
Table 4. Clock Mode Configuration
CLOCK MODE
PLLVDD
DIV[1:0]
X4
DATA RANGE (MHz)
PLLLOCK PIN FUNCTION
External 2
×
0 V
XX
0
DC to 200
External clock/2
External 4
×
0 V
XX
1
DC to 100
External clock/4
Internal 2
×
3.3 V
00
0
100 to 200
Internal PLL lock indicator
Internal 2
×
3.3 V
01
0
50 to 100
Internal PLL lock indicator
Internal 2
×
3.3 V
10
0
25 to 50
Internal PLL lock indicator
Internal 2
×
3.3 V
11
0
12 to 25
Internal PLL lock indicator
Internal 4
×
3.3 V
00
1
50 to 100
Internal PLL lock indicator
Internal 4
×
3.3 V
01
1
25 to 50
Internal PLL lock indicator
Internal 4
×
3.3 V
10
1
12 to 25
Internal PLL lock indicator
Internal 4
×
3.3 V
11
1
5 to 12
Internal PLL lock indicator
Low-Pass Filter
The PLL consists of a type four phase-frequency detector (PFD), charge pump, external low-pass loop filter,
voltage to current converter, and current controlled oscillator (ICO) as shown in Figure 22. The DAC5674
evaluation board comes with component values R = 200, C1 = 0.01
F, and C2 = 100 pF. These values have
been designed to give the phase margins and loop bandwidths listed in Table 5 for the five divide down factors
of prescaling and interpolation. Note that the values derived were based on a charge pump current output of
1 mA and a VCO gain of 300 MHz/V (nominal at Fvco = 400 MHz). With this filter, the settling time from a phase
or frequency disturbance is about 2.5
s. If different PLL dynamics are required, DAC5674 users can design
a second order filter for their application; see the Designing the PLL Loop Filter section of this data sheet.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DAC5674IPHP 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 400 CommsDAC 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(shí)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
DAC5674IPHPG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 400 CommsDAC 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(shí)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
DAC5674IPHP-ND 制造商: 功能描述: 制造商:undefined 功能描述:
DAC5674IPHPR 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 400 CommsDAC 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(shí)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
DAC5674IPHPRG4 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit 400 CommsDAC 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(shí)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
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