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參數(shù)資料
| 型號： | KAD5514P-12Q72 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 24/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT 125MSPS SGL 72-QFN |
| 產(chǎn)品培訓(xùn)模塊： | High-Speed Analog-to-Digital Converters |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | FemtoCharge™ |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 125M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 376mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 72-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 72-QFN（10x10） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
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30
FN6804.2
September 10, 2009
72 Pin/48 Pin Package Options
The KAD5514 is available in both 72 pin and 48 pin
packages. The 48 pin package option supports LVDS DDR
only. A reduced set of pin selectable functions are available
in the 48 pin package due to the reduced pinout;
(OUTMODE, OUTFMT, and CLKDIV pins are not available).
Table 17 shows the default state for these functions for the
48 pin package. Note that these functions are available
through the SPI, allowing a user to set these modes as they
desire, offering the same flexibility as the 72 pin package
option. DC and AC performance of the ADC is equivalent for
both package options.
.
ADC Evaluation Platform
Layout Considerations
Split Ground and Power Planes
Data converters operating at high sampling frequencies
require extra care in PC board layout. Many complex board
designs benefit from isolating the analog and digital
sections. Analog supply and ground planes should be laid
out under signal and clock inputs. Locate the digital planes
under outputs and logic pins. Grounds should be joined
under the chip.
Clock Input Considerations
Use matched transmission lines to the transformer inputs for
the analog input and clock signals. Locate transformers and
terminations as close to the chip as possible.
Exposed Paddle
The exposed paddle must be electrically connected to
analog ground (AVSS) and should be connected to a large
copper plane using numerous vias for optimal thermal
performance.
Bypass and Filtering
Bulk capacitors should have low equivalent series
resistance. Tantalum is a good choice. For best
performance, keep ceramic bypass capacitors very close to
device pins. Longer traces will increase inductance, resulting
in diminished dynamic performance and accuracy. Make
sure that connections to ground are direct and low
impedance. Avoid forming ground loops.
LVDS Outputs
Output traces and connections must be designed for 50
Ω
(100
Ω differential) characteristic impedance. Keep traces
direct and minimize bends where possible. Avoid crossing
ground and power-plane breaks with signal traces.
LVCMOS Outputs
Output traces and connections must be designed for 50
Ω
characteristic impedance.
Unused Inputs
Standard logic inputs (RESETN, CSB, SCLK, SDIO, SDO)
which will not be operated do not require connection to
ensure optimal ADC performance. These inputs can be left
floating if they are not used. Tri-level inputs (NAPSLP,
OUTMODE, OUTFMT, CLKDIV) accept a floating input as a
valid state, and therefore should be biased according to the
desired functionality.
FIGURE 49. VCM_OUT OUTPUT
Equivalent Circuits (Continued)
VCM
AVDD
0.535V
+
–
TABLE 17. 48 PIN SPI - ADDRESSABLE FUNCTIONS
FUNCTION
DESCRIPTION
DEFAULT STATE
CLKDIV
Clock Divider
Divide by 1
OUTMODE
Output Driver
Mode
LVDS, 3mA (DDR)
OUTFMT
Data Coding
Two’s Complement
KAD5514P
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KAD5514P-17Q48 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:14-Bit, 250/210/170/125MSPS ADC |
| KAD5514P-17Q72 | 制造商:Intersil Corporation 功能描述:14-BIT, 170MSPS SINGLE-CHANNEL ADC, PROGRAMMABLE LVDS/LVCMOS - Rail/Tube 制造商:Intersil Corporation 功能描述:IC ADC 14BIT 170MSPS SGL 72-QFN |
| KAD5514P-21Q48 | 制造商:Intersil Corporation 功能描述:14-BIT, 210MSPS SINGLE-CHANNEL ADC, PROGRAMMABLE LVDS/LVCMOS - Rail/Tube 制造商:Intersil Corporation 功能描述:IC ADC 14BIT 210MSPS SGL 48-QFN |
| KAD5514P-21Q72 | 制造商:Intersil Corporation 功能描述:14-BIT, 210MSPS SINGLE-CHANNEL ADC, PROGRAMMABLE LVDS/LVCMOS - Rail/Tube 制造商:Intersil Corporation 功能描述:IC ADC 14BIT 210MSPS SGL 72-QFN |
| KAD5514P-25Q48 | 制造商:Intersil Corporation 功能描述:14-BIT, 250MSPS SINGLE-CHANNEL ADC, PROGRAMMABLE LVDS/LVCMOS - Rail/Tube 制造商:Intersil Corporation 功能描述:IC ADC 14BIT 250MSPS SGL 48-QFN 制造商:Intersil Corporation 功能描述:IC, ADC, 14BIT, Resolution (Bits):14bit, Sampling Rate:250MSPS, Supply Voltage T 制造商:Intersil Corporation 功能描述:IC, ADC, 14BIT, Resolution (Bits):14bit, Sampling Rate:250MSPS, Supply Voltage Type:Single, Supply Voltage Min:1.7V, Supply Voltage Max:1.9V, Supply Current:170mA, Digital IC Case Style:QFN, No. of Pins:48, Data Interface:SPI, MSL:- , RoHS Compliant: Yes |
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