- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1931 > KSZ8051MLLI TR (Micrel Inc)TXRX PHY 10/T100 3.3V MII 48LQFP PDF資料下載
參數(shù)資料
| 型號： | KSZ8051MLLI TR |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 38/51頁 |
| 文件大?。?/td> | 0K |
| 描述： | TXRX PHY 10/T100 3.3V MII 48LQFP |
| 特色產(chǎn)品： | KSZ8051/8031/8021 Series |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | PHY 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | MII |
| 電源電壓： | 1.8V，2.5V，3.3V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應(yīng)商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 配用： | 576-3864-ND - BOARD EVALUATION FOR KSZ8051MLL |
| 其它名稱： | 576-3888-6 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁當(dāng)前第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁
2009 Microchip Technology Inc.
DS22147A-page 43
MCP4017/18/19
6.2
Resistor Configurations
6.2.1
RHEOSTAT CONFIGURATION
When used as a rheostat, two of the three digital
potentiometer’s terminals are used as a resistive
element in the circuit. With terminal W (wiper) and
either terminal A or terminal B, a variable resistor is
created. The resistance will depend on the tap setting
of the wiper (and the wiper’s resistance). The
resistance is controlled by changing the wiper setting
The unused terminal (B or A) should be left floating.
Figure 6-2 shows the two possible resistors that can be
used. Reversing the polarity of the A and B terminals
will not affect operation.
FIGURE 6-2:
Rheostat Configuration.
This allows the control of the total resistance between
the two nodes. The total resistance depends on the
“starting” terminal to the Wiper terminal. So at the code
00h, the RBW resistance is minimal (RW), but the RAW
resistance in maximized (RAB + RW). Conversely, at the
code 3Fh, the RAW resistance is minimal (RW), but the
RBW resistance in maximized (RAB + RW).
The resistance Step size (RS) equates to one LSb of
the resistor.
The pinout for the rheostat devices is such that as the
wiper register is incremented, the resistance of the
resistor will increase (as measured from Terminal B to
the W Terminal).
6.2.2
POTENTIOMETER
CONFIGURATION
When used as a potentiometer, all three terminals of
the device are tied to different nodes in the circuit. This
allows the potentiometer to output a voltage
proportional to the input voltage. This configuration is
sometimes
called
voltage
divider
mode.
The
potentiometer is used to provide a variable voltage by
adjusting the wiper position between the two endpoints
as shown in Figure 6-3. Reversing the polarity of the A
and B terminals will not affect operation.
FIGURE 6-3:
Potentiometer
Configuration.
The temperature coefficient of the RAB resistors is
minimal by design. In this configuration, the resistors all
change uniformly, so minimal variation should be seen.
The Wiper resistor temperature coefficient is different
to the RAB temperature coefficient. The voltage at node
V3 (Figure 6-3) is not dependent on this Wiper
resistance, just the ratio of the RAB resistors, so this
temperature coefficient in most cases can be ignored.
Note:
To avoid damage to the internal wiper
circuitry in this configuration, care should
be taken to insure the current flow never
exceeds 2.5 mA.
A
B
W
Resistor
RAW
RBW
or
Note:
To avoid damage to the internal wiper
circuitry in this configuration, care should
be taken to insure the current flow never
exceeds 2.5 mA.
A
B
W
V1
V3
V2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KSZ8051MNLI | TXRX PHY 10/T100 3.3V 32QFN |
| KSZ8051RNLI TR | TXRX PHY 10/T100 3.3V RMII 32QFN |
| KSZ8692XPB | IC ARM9 PHY 10/100MBPS 400-PBGA |
| KSZ8695P | IC ARM9 W/MMU PHY 10/100 289PBGA |
| KSZ8695X | IC SWITCH 10/100 5PORT 208PQFP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KSZ8051MNL | 功能描述:TXRX PHY 10/T100 3.3V MII 32-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,140 系列:AU 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:CAN 電源電壓:5.3 V ~ 27 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SO 包裝:管件 其它名稱:935267940512AU5790D14AU5790D14-ND |
| KSZ8051MNL TR | 功能描述:以太網(wǎng) IC 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ MII Support (32-QFN) 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 |
| KSZ8051MNL-EVAL | 功能描述:以太網(wǎng)開發(fā)工具 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ MII Support (32-QFN) - 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: |
| KSZ8051MNLI | 功能描述:TXRX PHY 10/T100 3.3V 32QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,140 系列:AU 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:CAN 電源電壓:5.3 V ~ 27 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SO 包裝:管件 其它名稱:935267940512AU5790D14AU5790D14-ND |
| KSZ8051MNLI TR | 功能描述:以太網(wǎng) IC 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver with MII support (32-QFN, 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。