参数资料
型号: LCMXO2280C-5T100C
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: PLD
中文描述: FLASH PLD, 3.6 ns, PQFP100
封装: 14 X 14 MM, TQFP-100
文件页数: 30/96页
文件大小: 1389K
代理商: LCMXO2280C-5T100C
3-10
DC and Switching Characteristics
Lattice Semiconductor
MachXO Family Data Sheet
Table 3-2. BLVDS DC Conditions
1
Over Recommended Operating Conditions
LVPECL
The MachXO family supports the differential LVPECL standard through emulation. This output standard is emu-
lated using complementary LVCMOS outputs in conjunction with a parallel resistor across the driver outputs on all
the devices. The LVPECL input standard is supported by the LVDS differential input buffer on certain devices. The
scheme shown in Figure 3-3 is one possible solution for point-to-point signals.
Figure 3-3. Differential LVPECL
Table 3-3. LVPECL DC Conditions
1
Over Recommended Operating Conditions
Nominal
Symbol
Description
Zo = 45
Zo = 90
Units
ZOUT
Output impedance
100
Ohms
RTLEFT
Left end termination
45
90
Ohms
RTRIGHT
Right end termination
45
90
Ohms
VOH
Output high voltage
1.375
1.48
V
VOL
Output low voltage
1.125
1.02
V
VOD
Output differential voltage
0.25
0.46
V
VCM
Output common mode voltage
1.25
V
IDC
DC output current
11.2
10.2
mA
1. For input buffer, see LVDS table.
Symbol
Description
Nominal
Units
ZOUT
Output impedance
100
Ohms
RP
Driver parallel resistor
150
Ohms
RT
Receiver termination
100
Ohms
VOH
Output high voltage
2.03
V
VOL
Output low voltage
1.27
V
VOD
Output differential voltage
0.76
V
VCM
Output common mode voltage
1.65
V
ZBACK
Back impedance
85.7
Ohms
IDC
DC output current
12.7
mA
1. For input buffer, see LVDS table.
Transmission line, Zo = 100 ohm differential
100 ohms
16mA
100 ohms
Off-chip
On-chip
VCCIO = 3.3V
+
-
150 ohms
On-chip
Off-chip
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