參數(shù)資料
型號: ICS1893BFLFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 10/133頁
文件大小: 0K
描述: PHYCEIVER LOW PWR 3.3V 48-SSOP
標準包裝: 1
系列: PHYceiver™
類型: PHY 收發(fā)器
規(guī)程: MII
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 48-BSSOP(0.295",7.50mm 寬)
供應商設(shè)備封裝: 48-SSOP
包裝: 標準包裝
產(chǎn)品目錄頁面: 1252 (CN2011-ZH PDF)
其它名稱: 800-1017-6
Chapter 9 DC and AC Operating Conditions
ICS1893BF, Rev. F, 5/13/10
May, 2010
107
ICS1893BF Data Sheet Rev. F - Release
Copyright 2009, IDT, Inc.
All rights reserved.
9.3 Recommended Component Values
There are two IEEE Std. 802.3 requirements that drive the tolerance for the frequency of the oscillator.
Clause 22.2.2.1 requires the MII TX_CLK to have an accuracy of ± 100 ppm.
Clause 24.2.3.4 is more stringent. It requires the code-bit timer to have an accuracy of 0.005% (that is, ±50 ppm).
Figure 9-1. ICS1893BF 10TCSR and 100TCSR
Table 9-3. Recommended Component Values for ICS1893BF
Parameter
Minimum
Typical
Maximum
Tolerance
Units
Oscillator Frequency
25
± 50 ppm
MHz
10TCSR Resistor Value
2.00k
1%
100TCSR Resistor Value
–1%
LED Resistor Value
510
1k
10k
Note:
1. The bias resistor networks set the 10baseT and 100baseTX output amplitude levels.
2. Amplitude is directly related to current sourced out of the 10TCSR and 100TCSR pins.
3. Resistor values shown above are typical. User should check amplitudes and adjust for transformer.
4. The VDD connection to the 12.1K resistor can connect to any VDD. The 12.1K resistor provides
negative feedback to compensate for VDD changes. Lowering the 12.1K value will lower the
100baseT amplitude.
5. The ICS1893BF 10baseT amplitude is below the IEEE spec but is adequate for 200m operation. This
is the effect of additional MUXes added for the Auto-MDIX function.
Typical Board Layouts
10TCSR and 100TCSR Bias Resistors
ICS1893BF
18
19
20
VDD
10TCSR
100TCSR
2.0K
1%
VDD
12.1 K
1%
10TCSR
1.54K
1%
100TCSR
相關(guān)PDF資料
PDF描述
IDT723631L20PF IC FIFO SYNC 512X36 120-TQFP
VE-26F-IW-F2 CONVERTER MOD DC/DC 72V 100W
MS27473T18F35SC CONN PLUG 66POS STRAIGHT W/SCKT
MS27467P17B35SA CONN PLUG 55POS STRAIGHT W/SCKT
MS27508E20B2P CONN RCPT 65POS BOX MNT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS1893BFT 功能描述:PHYCEIVER LOW PWR 3.3V 48-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:PHYceiver™ 標準包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
ICS1893BK 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:PHYceiver™ 標準包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
ICS1893BKI 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:PHYceiver™ 標準包裝:250 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
ICS1893BKILF 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:PHYceiver™ 標準包裝:1 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:RS422,RS485 電源電壓:4.5 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 其它名稱:ISL31470EIBZ-T7ACT
ICS1893BKILFT 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:PHYceiver™ 標準包裝:1 系列:- 類型:線路收發(fā)器 驅(qū)動器/接收器數(shù):5/3 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設(shè)備封裝:28-SOIC 包裝:Digi-Reel® 產(chǎn)品目錄頁面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6