LMH0387SL Datasheet, PDF (7/23 Pages) Texas Instruments – LMH0387 3 Gbps HD/SD SDI Configurable I/O Adaptive Cable Equalizer / Cable Driver

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
V_{CMOUT Output Common Mode Voltage}
BNC_IO
V_OUT
V_CMIN
Output Voltage Swing
Input Common Mode Voltage
R_REF = 715Ω 1%
SDI, SDI
V_ID
Input Voltage Swing
I_CC
Supply Current
Differential
SD/HD = 0, equalizer in sleep
mode
SD/HD = 1, equalizer in sleep
mode
Power save mode (TX_EN = 0,
equalizer in sleep mode)
Loopback mode (Tx and Rx both
enabled), SD/HD = 0
Min
720
0.9 +
V_ID/2
100
Typ
V_CC –
V_OUT
800
57
50
11
117
Max
880
V_CC –
V_ID/2
2200
71
Units
V
mV_P-P
V
mV_P-P
mA
mA
mA
mA
(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
DR_MIN
DR_MAX
t_jit
Minimum Input Data Rate
Maximum Input Data Rate
Equalizer Jitter for Various
Cable Lengths
BNC_IO
270 Mbps, Belden 1694A,
0-350 meters⁽²⁾⁽³⁾
SDO, SDO
270 Mbps, Belden 1694A,
350-400 meters⁽³⁾
1.485 Gbps, Belden 1694A,
0-170 meters⁽²⁾⁽³⁾
1.485 Gbps, Belden 1694A,
170-200 meters⁽³⁾
2.97 Gbps, Belden 1694A,
0-100 meters⁽²⁾⁽³⁾
2.97 Gbps, Belden 1694A,
100-120 meters⁽³⁾
t_r, t_f
Output Rise Time, Fall Time 20% – 80%, 100Ω load,
Figure 1⁽⁴⁾
Δt_r, Δt_f Mismatch in Rise/Fall Time
. ⁽⁴⁾
t_OS
RL_IN
Output Overshoot
Input Return Loss
5 MHz - 1.5 GHz⁽⁴⁾⁽⁵⁾
BNC_IO
15
1.5 GHz - 3.0 GHz⁽⁴⁾⁽⁵⁾
10
Typ
Max
Units
125
Mbps
2970
Mbps
0.2
UI
0.2
UI
0.25
UI
0.3
UI
0.3
UI
0.35
UI
80
130
ps
2
15
ps
1
5
%
dB
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.
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