參數(shù)資料
型號： KSZ8863FLL
廠商： Micrel Inc
文件頁數(shù)： 60/106頁
文件大?。?/td> 0K
描述： IC ETHERNET SW 3PORT 48-LQFP
產(chǎn)品培訓模塊： KSZ8863 Ethernet Switch
特色產(chǎn)品： KSZ8863MLL, KSZ8863RLL and KSZ8863FLL Series
標準包裝： 250
控制器類型： 以太網(wǎng)開關控制器
接口： MII
電源電壓： 1.8V，2.5V，3.3V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應商設備封裝： 48-LQFP（7x7）
包裝： 托盤
產(chǎn)品目錄頁面： 1081 (CN2011-ZH PDF)
配用： 576-3866-ND - BOARD EVALUATION FOR KSZ8863FLL
其它名稱： 576-3576
PIC16C72 Series
DS39016A-page 56
Preliminary
1998 Microchip Technology Inc.
9.1
A/D Acquisition Requirements
For the A/D converter to meet its specied accuracy,
the charge holding capacitor (CHOLD) must be allowed
to fully charge to the input channel voltage level. The
analog input model is shown in Figure 9-4. The source
impedance (RS) and the internal sampling switch (RSS)
impedance directly affect the time required to charge
the capacitor CHOLD. The sampling switch (RSS)
impedance varies over the device voltage (VDD). The
source impedance affects the offset voltage at the ana-
log input (due to pin leakage current). The maximum
recommended impedance for analog sources is 10
k
. After the analog input channel is selected
(changed) this acquisition must be done before the
conversion can be started.
To calculate the minimum acquisition time, TACQ, see
the PICmicro Mid-Range MCU Reference Manual,
DS33023. This equation calculates the acquisition time
to within 1/2 LSb error (512 steps for the A/D). The 1/2
LSb error is the maximum error allowed for the A/D to
meet its specied accuracy.
FIGURE 9-4:
ANALOG INPUT MODEL
CPIN
VA
Rs
ANx
5 pF
VDD
VT = 0.6V
I leakage
RIC
≤ 1k
Sampling
Switch
SS
RSS
CHOLD
= DAC capacitance
VSS
6V
Sampling Switch
5V
4V
3V
2V
5 6 7 8 9 10 11
( k
)
VDD
= 51.2 pF
± 500 nA
Legend CPIN
VT
I leakage
RIC
SS
CHOLD
= input capacitance
= threshold voltage
= leakage current at the pin due to
= interconnect resistance
= sampling switch
= sample/hold capacitance (from DAC)
various junctions
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相關代理商/技術參數(shù)
參數(shù)描述
KSZ8863FLL-EVAL 功能描述:以太網(wǎng)開發(fā)工具 3-Port 10/100 Ethernet Switch with 1x FX Port and 1x TX Port - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8863FLLI 功能描述:以太網(wǎng) IC 3-Port 10/100 Ethernet Switch w/ 1x FX Port and 1x TX Port (Industrial Grade) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8863MLL 功能描述:以太網(wǎng) IC 3-Port Copper 10/100 Ethernet Switch with 1x MII Interface (Lead Free) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8863MLL-EVAL 功能描述:以太網(wǎng)開發(fā)工具 3-Port Copper 10/100 Ethernet Switch with 1x MII Interface - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8863MLLI 功能描述:以太網(wǎng) IC 3-Port Copper 10/100 Ethernet Switch w/ 1x MII Interface (Industrial Grade) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
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