SI5374B-A-GL Datasheet, PDF (12/20 Pages) Silicon Laboratories – Timing Selector Guide

12 / CLOCK AND OSCILL ATOR SELEC TOR
Zero Delay Buffers
Silicon Labs’ zero delay clock buffers are used in applications that require zero propagation delay between the input and
output clocks. Silicon Labs’ zero delay buffers provide low power consumption and simplify the distribution of spread
spectrum clocks.
ZERO DELAY BUFFER FEATURES
• Low propagation delay
• Low output-to-output skew
• Low device-to-device skew
• Low output jitter
• Drive strength options
• Wide operation frequency from 10 to 220 MHz
• 3.3 V to 2.5 V power supply range
• Low power dissipation
Ethernet
Switch
Controller
25 MHz
XO
SL2305
Zero
Delay
Buffer
25 MHz
Quad Ethernet PHY
25 MHz
Quad Ethernet PHY
25 MHz
Quad Ethernet PHY
25 MHz
Quad Ethernet PHY
RJ-45 Port 1
RJ-45 Port 2
RJ-45 Port 15
RJ-45 Port 16
PART NUMBER
CLOCK
CONTROL INPUT/
OUTPUTS
INPUT
FREQUENCY
(MHz)
SL2305
Pin
1/5
1 - 140 MHz
OUTPUT
FREQUENCY (MHz)
PHASE
JITTER
(RMS)
1 - 140 MHz
—
VDD
3.3 V
SL2309
Pin
1/9
10 - 140 MHz
10 - 140 MHz
—
3.3 V
SL23EP04
Pin
1/4
10 - 220 MHz
10 - 220 MHz
— 2.5 V, 3.3 V
SL23EP05
Pin
1/5
10 - 220 MHz
10 - 220 MHz
— 2.5 V, 3.3 V
SL23EP08
Pin
1/8
10 - 220 MHz
10 - 220 MHz
— 2.5 V, 3.3 V
SL23EP09
Pin
1/9
10 - 220 MHz
10 - 220 MHz
— 2.5 V, 3.3 V
VDDO
—
—
—
—
—
—
OUTPUT
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
LVCMOS
PACK AGE
TSSOP8/SOIC8
TSSOP16/SOIC16
SOIC8
TSSOP8/SOIC8
TSSOP16/SOIC16
TSSOP16/SOIC16