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参数资料
| 型号： | W3HG2128M72AEF665F2MBG |
| 厂商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分类： | DRAM |
| 英文描述： | 256M X 72 DDR DRAM MODULE, DMA240 |
| 封装： | ROHS COMPLIANT, DIMM-240 |
| 文件页数： | 3/18页 |
| 文件大小： | 348K |
| 代理商： | W3HG2128M72AEF665F2MBG |
11
W3HG2128M72AEF-Fx
June 2007
Rev. 3
ADVANCED
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
DIFFERENTIAL TRANSMITTER OUTPUT SPECIFICATIONS
Parameter
Symbol
Values
Units
Comments
Min
Max
Differential peak-to-peak output voltage for large voltage swing
VTX-DIFF p-p_L
900
1,300
mV
EQ 1, Note 1
Differential peak-to-peak output voltage for regular voltage swing
VTX-DIFF p-p_R
800
mV
EQ 1, Note 1
Differential peak-to-peak output voltage for small voltage swing
VTX-DIFFp-p_S
520
mV
EQ 1, Note 1
DC common code output voltage for large voltage swing
VTX-CM_L
375
mV
EQ 2, Note 1
DC common code output voltage for small voltage swing
VTX-CM_S
135
280
mV
EQ 2, Note 1, 2
De-emphasized differential output voltage ratio for -3.5 dB de-emphasis
VTX-CM-3.5-Ratio
-3.0
-4.0
dB
1, 3, 4
De-emphasized differential output voltage ratio for -6.0 dB de-emphasis
VTX-CM-6.0-Ratio
-5.0
-7.0
dB
1, 3, 4
AC peak-to-peak common mode output voltage for large swing
VTX-CM-AC p-p-L
90
mV
EQ3, Note 1, 5
AC peak-to-peak common mode output voltage for regular swing
VTX-CM-AC p-p-R
80
mV
EQ3, Note 1, 5
AC peak-to-peak common mode output voltage for small swing
VTX-CM-AC p-p-S
70
mV
EQ3, Note 1, 5
Maximum single-ended voltage in EI condition DC + AC
VTX-IDLE-SE-SE
50
mV
6
Maximum single-ended voltage in EI condition DC + AC
VTX-IDLE-SE-DC
20
mV
6
Maximum peak-to-peak differential voltage in EI condition
VTX-DIFF p-p
40
mV
Single-ended voltage (w.r.t. VSS) ON D+/D-
VTX-SE
-75
750
mV
1, 7
Minimum TX eye width, 3.2 and 4.0 Gb/s
TTX-EYE-MIN
0.7
Ul
1, 8
Minimum TX eye width 4.8 Gb/s
TTX-EYE-MIN 4.8
TBD
Ul
1, 8
Maximum TX deterministic jitter, 3.2 and 4.8 Gb/s
TTX-DJ-DD
0.2
Ul
1, 8, 9
Maximum TX eye width 4.8 Gb/s
TTX-DJ-DD-4.8
TBD
Ul
1, 8, 9
Instantaneous pulse width
TTX-PULSE
0.85
Ul
10
Differential TX outout rise/fall time
TTX-RISE TTX-FALL
30
90
ps
20-80% voltage,
Note 1
Mismatch between rise and fall times
TTX-RF-MISMATCH
20
ps
Differential return loss
RLTX-DIFF
8dB
1GHz - 2.4GHz
Note 11
Common mode return loss
RLTX-CM
6dB
1GHz - 2.4GHz
Note 11
Transmitter termination impender
RTX
41
55
12
D+/D- TX Impedance difference
RTX-MATCH -DC
4%
EQ; 4 Boundaries
are applied
separately to high
and low output
voltage states
Lane-to lane skew at Tx
LTX-SKEW 1
100 + 3Ul
ps
13, 15
Lane-to lane skew at TX
LTX-SKEW 2
100 + 2Ul
ps
14, 15
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| W3HG264M72EER665AD7XG | 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx72 DDR2 SDRAM REGISTERED, w/PLL, VLP Mini-DIMM |
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