參數資料
型號: KS8993FL
廠商: Micrel Inc
文件頁數: 98/99頁
文件大小: 0K
描述: IC CONV MED 10/100 SGL 128PQFP
標準包裝: 66
系列: *
類型: *
應用: *
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應商設備封裝: 128-PQFP(14x20)
包裝: 管件
配用: 576-1012-ND - BOARD EVAL EXPERIMENT KS8993F
KS8993F
Micrel
August 26, 2004
Revision 1.0
- 98 -
7
Selection of Isolation Transformer
An 1:1 isolation transformer is required at the line interface. An isolation transformer with integrated common-mode
choke is recommended for exceeding FCC requirements.
The following table gives recommended transformer
characteristics.
Table 24: Transformer Selection Criteria
Parameter
Value
Test Condition
Turns Ratio
1 CT : 1 CT
Open-Circuit Inductance (min.)
350 uH
100 mV, 100 kHz, 8 mA
Leakage Inductance (max.)
0.4 uH
1 MHz (min.)
Inter-Winding Capacitance (max.)
12 pF
D.C. Resistance (max.)
0.9 Ohms
Insertion Loss (max.)
1.0 dB
0-65 MHz
HIPOT (min.)
1500 Vrms
The following are recommended transformers for the KS8993F.
Table 25: Qualified Single Port Magnetic
Magnetic Manufacturer
Part Number
Auto MDI-X
Pulse
H1102
Yes
Pulse (low cost)
H1260
Yes
Transpower
HB726
Yes
Bel Fuse
S558-5999-U7
Yes
Delta
LF8505
Yes
LanKom
LF-H41S
Yes
8
Selection of Crystal/Oscillator
A crystal or oscillator with the following typical characteristics is recommended.
Table 26: Crystal/Oscillator Selection Criteria
Charateristics
Value
Units
Frequency
25.00000
MHz
Frequency Tolerance (max)
±50
ppm
Load Capacitance (max)
20
pF
Series Resistance
25
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相關代理商/技術參數
參數描述
KS8993FL-EVAL 功能描述:BOARD EVAL EXPERIMENT KS8993F RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理,電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板
KS8993I 功能描述:IC SWITCH 10/100 3PORT 128PQFP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調幀器 應用:數據傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA(27x27) 包裝:散裝
KS8993M 功能描述:IC SWITCH 10/100 3PORT 128PQFP RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調幀器 應用:數據傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA(27x27) 包裝:散裝
KS8993M_11 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Integrated 3-Port 10/100 Managed Switch with PHYs
KS8993MA5 功能描述:IC SWITCH 3-PORT 10/100 128-PQFP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調幀器 應用:數據傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA(27x27) 包裝:散裝