Datasheet
LMH0387
www.ti.com
SNLS315G –APRIL 2010–REVISED APRIL 2013
Output Mode (Cable Driver) DC Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified
(1)(2)
.
Symbol Parameter Conditions Reference Min Typ Max Units
V
CMOUT
BNC_IO V
CC
–
Output Common Mode Voltage V
V
OUT
V
OUT
Output Voltage Swing R
REF
= 715Ω 1% 720 800 880 mV
P-P
V
CMIN
SDI, SDI 0.9 + V
CC
–
Input Common Mode Voltage V
V
ID
/2 V
ID
/2
V
ID
Input Voltage Swing Differential 100 2200 mV
P-P
I
CC
Supply Current SD/HD = 0, equalizer in sleep
57 71 mA
mode
SD/HD = 1, equalizer in sleep
50 mA
mode
Power save mode (TX_EN = 0,
11 mA
equalizer in sleep mode)
Loopback mode (Tx and Rx both
117 mA
enabled), SD/HD = 0
(1) Current flow into device pins is defined as positive. Current flow out of device pins is defined as negative. All voltages are stated
referenced to V
EE
= 0 Volts.
(2) Typical values are stated for V
CC
= +3.3V and T
A
= +25°C.
Input Mode (Equalizer) AC Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified
(1)
.
Symbol Parameter Conditions Reference Min Typ Max Units
DR
MIN
Minimum Input Data Rate BNC_IO 125 Mbps
DR
MAX
Maximum Input Data Rate 2970 Mbps
t
jit
Equalizer Jitter for Various 270 Mbps, Belden 1694A, SDO, SDO
0.2 UI
Cable Lengths 0-350 meters
(2)(3)
270 Mbps, Belden 1694A,
0.2 UI
350-400 meters
(3)
1.485 Gbps, Belden 1694A,
0.25 UI
0-170 meters
(2)(3)
1.485 Gbps, Belden 1694A,
0.3 UI
170-200 meters
(3)
2.97 Gbps, Belden 1694A,
0.3 UI
0-100 meters
(2)(3)
2.97 Gbps, Belden 1694A,
0.35 UI
100-120 meters
(3)
t
r
, t
f
Output Rise Time, Fall Time 20% – 80%, 100Ω load,
80 130 ps
Figure 1
(4)
Δt
r
, Δt
f
Mismatch in Rise/Fall Time .
(4)
2 15 ps
t
OS
Output Overshoot 1 5 %
RL
IN
Input Return Loss 5 MHz - 1.5 GHz
(4)(5)
BNC_IO 15 dB
1.5 GHz - 3.0 GHz
(4)(5)
10 dB
(1) Typical values are stated for V
CC
= +3.3V and T
A
= +25°C.
(2) Based on design and characterization data over the full range of recommended operating conditions of the device. Jitter is measured in
accordance with SMPTE RP 184, SMPTE RP 192, and the applicable serial data transmission standard: SMPTE 424M, SMPTE 292M,
or SMPTE 259M.
(3) LMH0387 equalizer launch amplitude fine tuning set to nominal via the SPI by writing 30h (“00110000 binary”) to SPI register 02h.
(4) Specification is ensured by characterization.
(5) Return loss is dependent on board design. The LMH0387 exceeds this specification on the SD387 evaluation board.
Copyright © 2010–2013, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Links: LMH0387