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参数资料
型号： MPC8314EVRAGDA
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： MICROPROCESSOR, PBGA620
封装： 29 X 29 MM, LEAD FREE, PLASTIC, TEPBGA-620
文件页数： 34/106页
文件大小： 1253K
代理商： MPC8314EVRAGDA
MPC8314E PowerQUICC II Pro Processor Hardware Specifications, Rev. 0
Freescale Semiconductor
33
Ethernet: Three-Speed Ethernet, MII Management
9.5.3
SGMII Transmitter and Receiver DC Electrical Characteristics
Table 35 and Table 36 describe the SGMII SerDes transmitter and receiver AC-Coupled DC electrical
characteristics. Transmitter DC characteristics are measured at the transmitter outputs (SD_TX[n] and
SD_TX[n]) as depicted in Figure .
Table 35. SGMII DC Transmitter Electrical Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
Notes
Supply Voltage
XCOREVDD
0.95
1.0
1.05
V
—
Output high voltage
VOH
—
XCOREVDD-Typ/2
+ |VOD|-max/2
mV
1
Output low voltage
VOL
XCOREVDD-Typ/2
- |VOD|-max/2
——
mV
1
Output ringing
VRING
——
10
%
—
Output differential voltage2, 3, 5
|VOD|
323
500
725
mV
Equalization
setting: 1.0x
296
459
665
Equalization
setting: 1.09x
269
417
604
Equalization
setting: 1.2x
243
376
545
Equalization
setting: 1.33x
215
333
483
Equalization
setting: 1.5x
189
292
424
Equalization
setting: 1.71x
162
250
362
Equalization
setting: 2.0x
Output offset voltage
VOS
425
500
575
mV
1, 4
Output impedance (single-ended)
RO
40
—
60
Ω
—
Mismatch in a pair
RO
——
10
%
—
Change in VOD between “0” and “1”
|VOD|—
—
25
mV
—
Change in VOS between “0” and “1”
VOS
——
25
mV
—
Output current on short to GND
ISA, ISB
——
40
mA
—
Note:
1. This will not align to DC-coupled SGMII. XCOREVDD-Typ=1.0V.
2. |VOD| = |VTXn - VTXn|. |VOD| is also referred as output differential peak voltage. VTX-DIFFp-p = 2*|VOD|.
3. The |VOD| value shown in the table assumes the following transmit equalization setting in the TXEQA (for SerDes lane A) or
TXEQE (for SerDes lane E) bit field of MPC8315E’s SerDes Control Register 0:
The LSbits (bit [1:3]) of the above bit field is set based on the equalization setting shown in table.
4. VOS is also referred to as output common mode voltage.
5. The |VOD| value shown in the Typ column is based on the condition of XCOREVDD-Typ=1.0V, no common mode offset variation
(VOS = 500 mV), SerDes transmitter is terminated with 100-Ω differential load between TX[n] and TX[n].
Δ
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