1 Features
• High-performance 1:2, 1:4, 1:6 and 1:8 LVCMOS
clock buffer
• Very low output skew:
– LMK1C1102-Q1 and LMK1C1104-Q1
• < 50ps
– LMK1C1106-Q1 and LMK1C1108-Q1
• < 55ps
• Extremely low additive jitter:
– LMK1C1102-Q1 and LMK1C1104-Q1
• 7.5fs typical at VDD = 3.3V
• 10fs typical at VDD = 2.5V
• 19.2fs typical at VDD = 1.8V
– LMK1C1106-Q1 and LMK1C1108-Q1
• 12fs typical at VDD = 3.3V
• 15fs typical at VDD = 2.5V
• 28fs typical at VDD = 1.8V
• Very low propagation delay < 3ns
• Synchronous output enable
• Supply voltage: 3.3V, 2.5V, or 1.8V
– 3.3V tolerant input at all supply voltages
– Fail-safe inputs
• fmax = 250MHz for 3.3V
fmax = 200MHz for 2.5V and 1.8V
• Automotive Grade 1 (–40°C to 125°C)
• AEC-Q100 qualified
• Available in:
– 14 and 16-Pin TSSOP Package
– 8-Pin WSON Package

2 Applications
• Automotive
– ADAS
– Infotainment & Cluster
– Radar

3 Description
The LMK1C110x-Q1 is a modular, high-performance,
low-skew, general-purpose clock buffer family from
Texas Instruments. The entire family is designed with
a modular approach in mind. Five different fan-out
variations, 1:2, 1:4, 1:6 and 1:8 are available.
All family members share the same high performing
characteristics such as low additive jitter, low skew,
and wide operating temperature range.
The LMK1C110x-Q1 supports a synchronous output
enable control (1G) which switches the outputs into
a low state when 1G is low. These devices have a
fail-safe input that prevents oscillation at the outputs
in the absence of an input signal and allows for input
signals before VDD is supplied.
The LMK1C110x-Q1 family are available in an
Automotive Grade 1 (–40°C to 125°C) and AEC-Q100
qualified.