Figure 5-2 Dc Characteristics Of The Lvds Interface; Table 5-12 Electrical Requirements For The Lvtm Interface In Lvds Mode - AMD 780E Technical Reference Manual

Table 5-12 Electrical Requirements for the LVTM Interface in LVDS Mode

Symbol
VCM Differential Output Common-mode Voltage
Differential Output Common-mode Voltage
DVCM
Ripple
VH Single-ended High Level Output Voltage
VL Single-ended Low Level Output Voltage
VSW Single-ended Output Swing
VOS Differential Output Overshoot (Ringing)
VUS Differential Output Undershoot (Ringing)
IDDLP Average Supply Current at LTPVDD18
IDDLV Average Supply Current at VDDLT18/33
IOL Output Low Current
IOH Output High Current
IPDLP Power Down Current at LTPVDD18
IPDLV Power Down Current at VDDLT18/33
Notes:
1 Differential termination is 100 ohms.
2 Measured under typical conditions, at minimum Differential Clock Frequency and maximum LVDS PLL VOC frequency.
3 Measured under typical conditions, based on typical leakage values.
4 Figure 5-2 below illustrates the DC Characteristics of the LVDS interface.
Single-ended Waveforms
Differential Waveform
45732 AMD 780E Databook 3.10
5-6
Parameter
VCM + 0.125
VSW
VSW

Figure 5-2 DC Characteristics of the LVDS Interface

Min Typical
1.125 –
– –
– VCM + 0.225
VCM - 0.225 – VCM - 0.125
257 –
– –
– –
– 10.0
– 100.0
– 2.5
– 4.5
– 10.0
– 10.0
© 2009 Advanced Micro Devices, Inc.
Electrical Characteristics
Max Unit Note
1.375 V
150 mV
V
V
454 mV
160 mV
160 mV
– mA
– mA
– mA
– mA
A
–
A
–
VCM = 1.125-
1.375V
Ground
+257 to
+454mV
0V
-257 to
-454mV
Proprietary
1
1
1
1
1
1
1
2
2
3
3