LMH0341_09 Datasheet, PDF (9/28 Pages) National Semiconductor (TI) – 3 Gbps, HD, SD, DVB-ASI SDI Deserializer with Loopthrough and LVDS Interface

FIGURE 2. SMBus Timing Parameters
30017205
SDI Output Switching Characteristics (LMH0341 / LMH0041 / LMH0071)
Over supply and Operating Temperature ranges unless otherwise specified. (Note 2)
Symbol
Parameter
Condition
Min
SDI Output Datarate
270
t_r
SDI Output Rise Time
DR=2.97 Gbps(Note 7)
DR=1.485 Gbps(Note 7)
DR=270 Mbps(Note 7)
400
t_f
SDI Output Fall Time
DR=2.97 Gbps(Note 7)
DR=1.485 Gbps(Note 7)
DR = 270 Mbps(Note 7)
400
Δt_t
Mismatch between Rise and Fall
2.97 Gbps(Note 7)
times
1.485 Gbps(Note 7)
270 Mbps(Note 7)
t_SD
Propagation Delay Latency
t_J
Peak to Peak Output Jitter
2.97 Gbps(Note 7, Note 6)
1.485 Gbps(Note 7, Note 6)
270 Mbps(Note 7, Note 6)
V_OD
SDI Output Voltage(Loopthrough
Into 75Ω Load
720
Output)
RL
Output Return Loss
Measured 5 MHz to 1483 MHz
(Note 7)
t_OS
Output Overshoot
(Note 7)
Typ
Max
2970
135
145
1000
135
145
1000
25
30
100
t_CIP
25
40
35
50
65
110
800
880
15
5
Units
MHz
ps
ps
ps
ps
ps
ps
ps
ns
mV
dB
%
Note 1: “Absolute Maximum Ratings” are the ratings beyond which the safety of the device cannot be guaranteed. It is not implied that the device will operate up
to these limits.
Note 2: Typical Parameters measured at V_DD=3.3V, T_A=25°C. They are for reference purposes and are not production tested.
Note 3: Recommended value—Parameter is not tested.
Note 4: Recommended maximum capacitance load per bus segment is 400 pF.
Note 5: Maximum termination voltage should be identical to the device supply voltage.
Note 6: Measured in accordance with SMPTE RP184.
Note 7: Specification Guaranteed by characterization
Note 8: Specification Characterized at 2.97 Gbps, 1.485 Gbps and 270 Mbps, production tested at 270 Mbps only
Note 9: Specification Guaranteed by Characterization for LMH0341, other variants production tested
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