LMH0318_15 Datasheet, PDF (10/57 Pages) Texas Instruments – LMH0318 3 Gbps HD/SD SDI Reclocker with Integrated Cable Driver

LMH0318
SNLS508 – SEPTEMBER 2015
Electrical Characteristics (continued)
Over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
CLOCK DATA RECOVERY
D_{DATA_RATE}
SMPTE 424⁽⁸⁾
SMPTE 292⁽⁸⁾
P_{PLL_BW}
J_TOL
T_LOCK
T_{TEMP_LOCK}
SMPTE 259M⁽⁸⁾
PLL bandwidth at -3 dB
Measured with 0.2UI S_J at
2.97 Gbps
Measured with 0.2UI S_J at
1.485 Gbps
Measured with 0.2UI S_J at
270 Mbps
Total input jitter tolerance
Lock time⁽³⁾⁽⁹⁾
TJ = D_J + R_J + S_J,
D_J+R_J = 0.15 UI
S_J/P_J, low to high upward
sweep (10 kHz to 10 MHz)
From signal detected to
the lock asserted,
HEO/VEO lock monitor
disable, same setting for
2.97G, 1.485G and 270
MHz data rates
CDR lock with temperature Temperature Lock Range,
ramp
5ºC per minute ramp up
and down, -40ºC to 85ºC
operating range
MIN
TYP
2.970
2.967
1.485
1.4835
270
5
3
1
0.65
<5
125
(8) Data rate tolerance is within ±1000 ppm
(9) The total CDR lock time depends on number of rate settings enabled and application data rate
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MAX
UNIT
Gbps
Gbps
Mbps
MHz
MHz
MHz
UI
ms
°C
10
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