参数资料
型号: MSC8256SVT800B
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 数字信号处理
英文描述: 0-BIT, OTHER DSP, PBGA783
封装: 29 X 29 MM, LEAD FREE, PLASTIC, FCBGA-783
文件页数: 28/68页
文件大小: 910K
代理商: MSC8256SVT800B
MSC8256 Six-Core Digital Signal Processor Data Sheet, Rev. 3
Electrical Characteristics
Freescale Semiconductor
34
Table 16 describes the SGMII SerDes receiver AC-coupled DC electrical characteristics.
Figure 10. SGMII Transmitter DC Measurement Circuit
Table 16. SGMII DC Receiver Electrical Characteristics5
Parameter
Symbol
Min
Typ
Max
Unit
Notes
DC Input voltage range
N/A
1
Input
differential
voltage
SRDSnCR4[EICE{12:10}] = 0b001 for SGMII1
SRDSnCR4[EICF{4:2}] = 0b001 for SGMII2
VRX_DIFFp-p
100
1200
mV
2, 4
SRDSnCR4[EICE{12:10}] = 0b100 for SGMII1
SRDSnCR4[EICF{4:2}] = 0b100 for SGMII2
175
Loss of
signal
threshold
SRDSnCR4[EICE{12:10}] = 0b001 for SGMII1
SRDSnCR4[EICF{4:2}] = 0b001 for SGMII2
VLOS
30
100
mV
3, 4
SRDSnCR4[EICE{12:10}] = 0b100 for SGMII1
SRDSnCR4[EICF{4:2}] = 0b100 for SGMII2
65
175
Receiver differential input impedance
ZRX_DIFF
80
120
W
Notes:
1.
Input must be externally AC-coupled.
2.
VRX_DIFFp-p is also referred to as peak-to-peak input differential voltage.
3.
The concept of this parameter is equivalent to the Electrical Idle Detect Threshold parameter in the PCI Express interface.
Refer to the PCI Express Differential Receiver (RX) Input Specifications section of the PCI Express Specification document.
for details.
4.
The values for SGMII1 and SGMII2 are selected in the SRDS control registers.
5.
The supply voltage is 1.0 V.
50
Ω
Transmitter
SR[1–2]_TXn
50
Ω
Vos
VOD
SGMII SerDes
Interface
50
Ω
50
Ω
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