DS64BR401 Datasheet, PDF (7/30 Pages) National Semiconductor (TI) – Quad Bi-Directional Transceiver with Equalization and De-Emphasis

Symbol
Parameter
Conditions
R_ITD
Input Differential Impedance DC tested, (Note 2)
between
IN+ and IN-
R_ITIB
Input Differential Impedance DC tested, (Note 2)
Imbalance
R_ICM
Input Common Mode
Impedance
DC tested, (Note 2)
V_RX-DIFF
Differential Rx peak to peak DC voltage,
voltage
SD_TH = 20 kΩ to GND
V_{RX-SD_TH}
Electrical Idle detect
threshold (differential)
SD_TH = Float, (Note 6), Figure 5
LPDS OUTPUTS (OUT_n+, OUT_n-)
V_OD
Output Voltage Swing
R_L = 50 Ω ±1% to GND (AC coupled with 10
nF), 6.4 Gbps, (Note 5)
DEMx = 0 dB,
VOD[1:0] = 00
VOD[1:0] = 11
V_OCM
Output Common-Mode
Voltage
Single-ended measurement DC-Coupled
with 50Ω termination,
(Note 2)
T_TX-RF
Transmitter Rise/ Fall Time 20% to 80% of differential output voltage,
measured within 1” from output pins, (Notes
2, 5), Figure 1
T_RF-DELTA
Tx rise/fall mismatch
20% to 80% of differential output voltage,
(Notes 2, 5)
RL_TX-DIFF
Tx Differential Return Loss
(SDD22),
(Note 2)
Repeating 1100b (D24.3) pattern,
VOD = 1.0 Vp-p,
150 MHz – 1.5 GHz
150 MHz – 3.0 GHz
150 MHz – 6.0 GHz
RL_TX-CM
Tx Common Mode Return
Loss
(SCC22)
Repeating 1100b (D24.3) pattern,
VOD = 1.0 Vp-p, (Note 2)
50 MHz – 3.0 GHz
R_TX-IB
Tx Impedance Balance
(SDC22)
Repeating 1100b (D24.3) pattern,
VOD = 1.0 Vp-p, (Note 2)
50 MHz – 3.0 GHz
I_TX-SHORT
Tx Output Short Circuit
Current Limit
OA/B_n = GND
R_OTD
Output Differential
DC tested, (Note 2)
Impedance between OUT+
and OUT-
R_OTIB
Output Differential
Impedance Imbalance
DC tested, (Note 2)
R_OCM
Output Common Mode
Impedance
DC tested, (Note 2)
V_TX-CM-DELTA
Common Mode Voltage
(Note 7)
Delta between active burst
and electrical Idle of an OOB
signal
T_DI
Max time to transition to valid VIN = 800 mVp-p, repeating 1100b (D24.3)
electrical idle after leaving pattern at 3 Gbps,
active burst in OOB signaling SD_TH = Float, Figure 3
Min
85
20
0.1
40
500
1100
85
20
Typ
100
25
600
1265
V_DD –
1.4
67
-11
-10
-5
-10
-30
100
25
6.5
Max
115
5
35
1.2
175
700
1450
85
0.1
90
125
5
35
±40
9.5
Units
Ω
Ω
Ω
V
mVp-p
mV_P-P
mV_P-P
V
ps
UI
dB
dB
dB
mA
Ω
Ω
Ω
mV
ns
7
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