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| LMH0384 Datasheet, PDF (6/29 Pages) National Semiconductor (TI) – 3 Gbps HD/SD SDI Extended Reach and Configurable Adaptive Cable Equalizer | |||
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LMH0384
SNLS308G â APRIL 2009 â REVISED JUNE 2015
www.ti.com
DC Electrical Characteristics (continued)
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified.(1)(2)(3)(4)
PARAMETER
TEST CONDITIONS
MIN
VSSP-P
Differential Output Voltage, P-P (SDO,
SDO)
500
VOD
Differential Output Voltage (SDO, SDO)
250
ÎVOD
Change in Magnitude of VOD for
Complementary Output States (SDO,
SDO)
100-⦠load, default values(6),
see Figure 1
VOS
ÎVOS
Offset Voltage (SDO, SDO)
Change in Magnitude of VOS for
Complementary Output States (SDO,
SDO)
1.125
IOS
Output Short Circuit Current (SDO, SDO)
MUTEREF MUTEREF DC Voltage (floating)
MUTEREF Range
VOH
Output Voltage High Level (CD, MISO) IOH = -2 mA
2.4
VOL
Output Voltage Low Level (CD, MISO) IOL = +2 mA
Normal operation, equalizing cable <
140m (Belden 1694A)(7)
ICC
Supply Current
Normal operation, equalizing cable >
140 m (Belden 1694A)
Power save mode
TYP
700
350
MAX UNIT
900 mVP-P
450 mV
50 mV
1.25 1.375 V
50 mV
30 mA
1.3
V
0.8
V
V
0.4 V
70
85 mA
90
110 mA
10
14 mA
(6) The differential output voltage and offset voltage are adjustable through the SPI.
(7) The equalizer automatically shifts equalization stages at cable lengths less than 140 m (Belden 1694A) to reduce power consumption.
This power savings is also achieved by setting Extended 3G Reach Mode = 1 through the SPI.
6.6 AC Electrical Characteristics
Over Supply Voltage and Operating Temperature ranges, unless otherwise specified (1).
PARAMETER
TEST CONDITIONS
MIN
BRMIN
Minimum Input Data Rate (SDI,
SDI)
125
BRMAX
Maximum Input Data Rate (SDI,
SDI)
270 Mbps, Belden 1694A,
0 to 350 meters(2)
270 Mbps, Belden 1694A,
350 to 400 meters
TJRAW
Jitter for Various Cable Lengths
1.485 Gbps, Belden 1694A,
0 to 170 meters(2)
1.485 Gbps, Belden 1694A,
170 to 200 meters
2.97 Gbps, Belden 1694A,
0-110 meters(2)
2.97 Gbps, Belden 1694A,
110 to 140 meters
tr,tf
Output Rise Time, Fall Time
(SDO, SDO)
20% to 80%, 100-⦠load(3),
see Figure 1
Mismatch in Rise/Fall Time (SDO,
SDO)
See
(3)
tOS
Output Overshoot (SDO, SDO) See (3)
TYP
MAX UNIT
Mbps
2970 Mbps
0.2
0.2
0.25
UI
0.3
0.3
0.35
80
130
ps
2
15
ps
1%
5%
(1) Typical values are stated for VCC = +3.3 V and TA = +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 ST RP 184, ST RP 192, and the applicable serial data transmission standard: ST 424, ST 292, or ST 259.
(3) Specification is ensured by characterization.
6
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