LMH0387SL Datasheet, PDF (8/23 Pages) Texas Instruments – LMH0387 3 Gbps HD/SD SDI Configurable I/O Adaptive Cable Equalizer / Cable Driver

LMH0387
SNLS315G – APRIL 2010 – REVISED APRIL 2013
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Output Mode (Cable Driver) AC Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified⁽¹⁾.
Symbol Parameter
Conditions
Reference
Min
DR_MAX
t_jit
Maximum Input Data Rate
Additive Jitter
2.97 Gbps⁽²⁾
1.485 Gbps⁽²⁾
270 Mbps⁽²⁾
SDI, SDI
BNC_IO
t_r, t_f
Output Rise Time, Fall Time SD/HD = 0, 20% – 80%
SD/HD = 1, 20% – 80%
400
Δt_r, Δt_f Mismatch in Rise/Fall Time
SD/HD = 0
SD/HD = 1
Duty Cycle Distortion
SD/HD = 0⁽³⁾
SD/HD = 1⁽³⁾
t_OS
Output Overshoot
SD/HD = 0⁽³⁾
SD/HD = 1⁽³⁾
RL_OUT Output Return Loss
5 MHz - 1.5 GHz⁽³⁾⁽⁴⁾
15
1.5 GHz - 3.0 GHz⁽³⁾⁽⁴⁾
10
Typ
Max
2970
20
18
15
65
130
800
30
50
30
100
10
8
(1) Typical values are stated for V_CC = +3.3V and T_A = +25°C.
(2) Cable driver additive jitter is measured with the input AC coupled.
(3) Specification is ensured by characterization.
(4) Return loss is dependent on board design. The LMH0387 exceeds this specification on the SD387 evaluation board.
Units
Mbps
ps_P-P
ps_P-P
ps_P-P
ps
ps
ps
ps
ps
ps
%
%
dB
dB
Input Mode (Equalizer) SPI Interface AC Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified ⁽¹⁾.
Symbol Parameter
Conditions
Reference
Min
Typ
Max
Units
Recommended Input Timing Requirements
f_SCK
SCK Frequency
SCK
t_PH
SCK Pulse Width High
Figure 2, Figure 3
40
20
MHz
% SCK
period
t_PL
SCK Pulse Width Low
40
% SCK
period
t_SU
MOSI Setup Time
Figure 2, Figure 3
MOSI
4
ns
t_H
MOSI Hold Time
4
ns
t_SSSU
SS Setup Time
Figure 2, Figure 3
SS
4
ns
t_SSH
SS Hold Time
4
ns
t_SSOF
SS Off Time
10
ns
Switching Characteristics
t_ODZ
MISO Driven-to-Tristate Time Figure 3
t_OZD
MISO Tristate-to-Driven Time
t_OD
MISO Output Delay Time
MISO
15
ns
15
ns
15
ns
(1) Typical values are stated for V_CC = +3.3V and T_A = +25°C.
8
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