8L30205 Datasheet, PDF (1/20 Pages) Integrated Device Technology – Crystal or Differential to LVCMOS/ LVTTL Clock Buffer

Crystal or Differential to LVCMOS/
LVTTL Clock Buffer
8L30205
DATA SHEET
General Description
The 8L30205 is a low skew, 1-to-5 LVCMOS / LVTTL Fanout Buffer.
The low impedance LVCMOS/LVTTL outputs are designed to drive
50 series or parallel terminated transmission lines.
The 8L30205 is characterized at full 3.3V and 2.5V, mixed 3.3V/2.5V,
3.3V/1.8V, 3.3V/1.5V, 2.5V/1.8V and 2.5V/1.5V output operating
supply modes. The input clock is selected with a differential clock
input or a crystal input. The differential input can be wired to accept
a single-ended input. The internal oscillator circuit is automatically
disabled if the crystal input is not selected.
Features
• Five LVCMOS / LVTTL outputs up to 200MHz
• Differential input pair can accept the following differential input
levels: LVPECL, LVDS, HCSL
• Crystal Oscillator Interface
• Crystal input frequency range: 10MHz to 40MHz
• Additive RMS phase jitter: 30fs (typical)
• Synchronous output enable to avoid clock glitch
• Power supply modes:
Core / Output
3.3V / 3.3V
2.5V / 2.5V
3.3V / 2.5V
3.3V / 1.8V
3.3V / 1.5V
2.5V / 1.8V
2.5V / 1.5V
• -40°C to 85°C ambient operating temperature
• Supports case temperature up to 105°C
• Available in lead-free (RoHS 6) package
Block Diagram
Pin Assignment
SEL
Pulldown
CLK
nCLK
Pulldown
Pullup/ Pulldown
0
XTAL_OUT
XTAL_IN
OSC
1
Bank A
Bank B
Q0
24 23 22 21 20 19
GND 1
18 V_DDO
Q1
V_DDO 2
17 Q4
Q0 3
GND 4
Q2
8L30205
16 GND
15 Q3
Q1 5
Q3
V_DDO 6
14 V_DDO
13 Q2
Q4
7 8 9 10 11 12
OE
Pulldown
SYNC
24-pin, 4mm x 4mm VFQFN Package
8L30205 REVISION 1 11/18/15
1
©2015 Integrated Device Technology, Inc.