Link Port Low Voltage, Differential-Signal (Lvds) Electrical Characteristics, And Timing - Analog Devices TigerSHARC ADSP-TS201S Specifications

ADSP-TS201S
Link Port Low Voltage, Differential-Signal (LVDS)
Electrical Characteristics, and Timing
Table 30 and Table 31 with Figure 16
characteristics for the LVDS link ports. The LVDS link port sig-
nal definitions represent all differential signals with a V
level and use signal naming without N (negative) and P (posi-
tive) suffixes (see Figure 17).
Table 30. Link Port LVDS Transmit Electrical Characteristics
Parameter Description
V Output Voltage High, V
OH
V Output Voltage Low, V
OL
|V | Output Differential Voltage
OD
I Short-Circuit Output Current
OS
V Common-Mode Output Voltage
OCM
Table 31. Link Port LVDS Receive Electrical Characteristics
Parameter Description
|V | Differential Input Voltage
ID
V Common-Mode Input Voltage
ICM
V
O_P
R
L
V
O_N
Figure 16. Link Ports—Transmit Electrical Characteristics
DIFFERENTIAL PAIR WAVEFORMS
Lx<PIN>P
Lx<PIN>N
DIFFERENTIAL VOLTAGE WAVEFORM
Lx<PIN>
V = 0V
OD
Figure 17. Link Ports—Signals Definition
provide the electrical
= 0 V
OD
or V
O_P O_N
or V
O_P O_N
V = (V – V )
OD O_P O_N
(V + V )
O_P O_N
V =
OCM
2
V
O_ N
V
O_ P
V = V – V
OD O_ P O_ N
Rev. C | Page 30 of 48 | December 2006
Test Conditions
= 100 Ω
R
L
= 100 Ω
R
L
= 100 Ω
R
L
V or V = 0 V
O_P O_N
V = 0 V
OD
Test Conditions
≥ 0.20 ns
t /t
LDIS LDIH
≥ 0.25 ns
t /t
LDIS LDIH
≥ 0.30 ns
t /t
LDIS LDIH
≥ 0.35 ns
t /t
LDIS LDIH
Min Max
1.85
0.92
300 650
+5/– 55
±10
1.20 1.50
Min Max
250 850
217 850
206 850
195 850
0.6 1.57
Unit
V
V
mV
mA
mA
V
Unit
mV
mV
mV
mV
V