參數(shù)資料
型號(hào): MCP4362T-104E/ST
廠商: Microchip Technology
文件頁(yè)數(shù): 53/59頁(yè)
文件大?。?/td> 0K
描述: IC DGTL POT QUAD 100K 14TSSOP
標(biāo)準(zhǔn)包裝: 2,500
系列: WiperLock™
接片: 257
電阻(歐姆): 100k
電路數(shù): 4
溫度系數(shù): 標(biāo)準(zhǔn)值 150 ppm/°C
存儲(chǔ)器類型: 非易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 14-TSSOP
包裝: 帶卷 (TR)
Micrel, Inc.
KSZ9021GQ
September 2010
57
M9999-091010-1.2
Reference Clock – Connection & Selection
A crystal or external clock source, such as an oscillator, is used to provide the reference clock for the KSZ9021GQ. The
reference clock is 25 MHz for all operating modes of the KSZ9021GQ.
The following figure and table shows the reference clock connection to XI (pin 124) and XO (pin 123) of the KSZ9021GQ,
and the reference clock selection criteria.
25MHz OSC
+/-50ppm
NC
XI
XO
XI
XO
22pF
25MHz XTAL
+/-50ppm
Figure 16. 25MHz Crystal / Oscillator Reference Clock Connection
Characteristics
Value
Units
Frequency
25
MHz
Frequency tolerance (max)
±50
ppm
Table 17. Reference Crystal/Clock Selection Criteria
Magnetics Specification
A 1:1 isolation transformer is required at the line interface. An isolation transformer with integrated common-mode chokes
is recommended for exceeding FCC requirements.
The following tables provide recommended magnetic characteristics and a list of qualified magnetics for the KSZ9021GQ.
Parameter
Value
Test Condition
Turns ratio
1 CT : 1 CT
Open-circuit inductance (min.)
350
μH
100mV, 100kHz, 8mA
Insertion loss (max.)
1.0dB
0MHz – 100MHz
HIPOT (min.)
1500Vrms
Table 18. Magnetics Selection Criteria
Magnetic Manufacturer
Part Number
Auto MDI-X
Number of Port
Pulse
H5007NL
Yes
1
TDK
TLA-7T101LF
Yes
1
Table 19. Qualified Single Port 10/100/1000 Magnetics
相關(guān)PDF資料
PDF描述
MS27497E16A35SC CONN RCPT 55POS WALL MNT W/SCKT
MCP4362T-103E/ST IC DGTL POT QUAD 10K 14TSSOP
MCP4361T-503E/ST IC DGTL POT QUAD 50K 20TSSOP
GTC06A-24-79SX CONN PLUG 5POS STRAIGHT W/SCKT
VI-BNW-MY-F2 CONVERTER MOD DC/DC 5.5V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP4362T-502E/ST 功能描述:數(shù)字電位計(jì) IC 5k SPI Qd Ch 8-Bit Nonvolatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4362T-503E/ST 功能描述:數(shù)字電位計(jì) IC 50k SPI Qd Ch 8-Bit Nonvolatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP43XXEV 功能描述:數(shù)字電位計(jì)開(kāi)發(fā)工具 MCP43XX Eval Board RoHS:否 制造商:Arduino 產(chǎn)品:TinkerKit Rotary Potentiometers 工具用于評(píng)估:TinkerKit 電阻:4.7 kOhms 工作電源電壓:0 V to 5 V
MCP4431-103E/ML 功能描述:數(shù)字電位計(jì) IC 10k I2Cquad Ch Pot 7bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel
MCP4431-103E/ST 功能描述:數(shù)字電位計(jì) IC 10k I2Cquad Ch Pot 7bit volatile memory RoHS:否 制造商:Maxim Integrated 電阻:200 Ohms 溫度系數(shù):35 PPM / C 容差:25 % POT 數(shù)量:Dual 每 POT 分接頭:256 弧刷存儲(chǔ)器:Volatile 緩沖刷: 數(shù)字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作電源電壓:1.7 V to 5.5 V 電源電流:27 uA 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFN-16 封裝:Reel