參數(shù)資料
型號(hào): KSZ8041RNL-EVAL
廠商: Micrel Inc
文件頁(yè)數(shù): 49/54頁(yè)
文件大小: 0K
描述: BOARD EVALUATION FOR KSZ8041RNL
標(biāo)準(zhǔn)包裝: 1
主要目的: 接口,以太網(wǎng) PHY
嵌入式:
已用 IC / 零件: KSZ8041RNL
主要屬性: 單芯片 PHY,10BASE-T/100BASE-TX
已供物品:
相關(guān)產(chǎn)品: 576-3979-2-ND - IC TXRX PHY 10/100 3.3V 32MLF
576-3745-6-ND - TXRX PHY 100BASE TX 3.3V 32QFN
576-3745-1-ND - TXRX PHY 100BASE TX 3.3V 32QFN
576-3745-2-ND - TXRX PHY 100BASE TX 3.3V 32QFN
576-3623-6-ND - TXRX PHY 10-T/100-TX 3.3V 32MLF
576-3623-1-ND - TXRX PHY 10-T/100-TX 3.3V 32MLF
576-3623-2-ND - TXRX PHY 10-T/100-TX 3.3V 32MLF
576-3503-ND - TXRX 10/100 3.3V PHY RMII 32-MLF
其它名稱: 576-3863
Micrel, Inc.
KSZ8041NL/RNL
September 2010
53
M9999-090910-1.4
Selection of Isolation Transformer
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 Table 17 gives recommended transformer characteristics.
Parameter
Value
Test Condition
Turns ratio
1 CT : 1 CT
Open-circuit inductance (min.)
350
μH
100mV, 100kHz, 8mA
Leakage inductance (max.)
0.4
μH
1MHz (min.)
Inter-winding capacitance (typ.)
12pF
D.C. resistance (typ.)
0.9
Ω
Insertion loss (max.)
-1.0dB
0MHz – 65MHz
HIPOT (min.)
1500Vrms
Table 17. Transformer Selection Criteria
Magnetic Manufacturer
Part Number
Auto MDI-X
Number of Port
Bel Fuse
S558-5999-U7
Yes
1
Bel Fuse (Mag Jack)
SI-46001
Yes
1
Bel Fuse (Mag Jack)
SI-50170
Yes
1
Delta
LF8505
Yes
1
LanKom
LF-H41S
Yes
1
Pulse
H1102
Yes
1
Pulse (low cost)
H1260
Yes
1
Transpower
HB726
Yes
1
TDK (Mag Jack)
TLA-6T718
Yes
1
Table 18. Qualified Single Port Magnetics
Selection of Reference Crystal
Characteristics
Value
Units
Frequency
25
MHz
Frequency tolerance (max)
±50
ppm
Load capacitance
20
pF
Series resistance
40
Ω
Table 19. Typical Reference Crystal Characteristics
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