参数资料
型号: ICS1894K-32LF
厂商: IDT, Integrated Device Technology Inc
文件页数: 24/50页
文件大小: 0K
描述: PHYCEIVER LOW PWR 3.3V 32QFN
标准包装: 490
类型: PHY 收发器
规程: MII,RMII
电源电压: 3.14 V ~ 3.47 V
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 托盘
ICS1894-32
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
IDT 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
30
ICS1894-32
REV M 021512
Recommended Component Values
ICS1894-32 TCSR
Parameter
Minimum
Typical
Maximum
Tolerance
Units
TCSR Resistor Value
1.82k to GND
18.2k to VDD
–1%
Ω
LED Resistor Value
1k
Ω
Note:
1. The bias resistor network sets the 10baseT and 100baseTX output amplitude levels.
2. Amplitude is directly related to current sourced out of the TCSR pin.
3. Resistor values shown above are typical. User should check amplitudes and adjust for transformer effects.
4. The 18.2K resistor provides negative feedback to compensate for VDD changes. Reducing the value of
this resistor will lower the 100baseT amplitude. Reducing the value of the resistor to ground on the other
hand will increase the output signal amplitude.
ICS1894-32
78
VDD
TCSR
VDD
18.2K
Ω 1%
1.82K
Ω 1%
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