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| 83905-01 Datasheet, PDF (1/20 Pages) Integrated Device Technology – Outputs able to drive 12 series terminated lines | |||
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Low Skew, 1:6 Crystal-to-LVCMOS
Fanout Buffer
83905-01
DATA SHEET
General Description
The 83905-01 is a low skew, 1-to-6 LVCMOS Fanout Buffer. The low
impedance LVCMOS outputs are designed to drive 50ï series or
parallel terminated transmission lines. The effective fanout can be
increased from 6 to 12 by utilizing the ability of the outputs to drive
two series terminated lines.
The 83905-01 is characterized at full 1.8V, 1.5V, and 1.2V, mixed
1.8V/1.5V, 1.8V/1.2V and 1.5V/1.2V output operating supply mode.
Guaranteed output skew characteristics along with the 1.2V output
capabilities makes the 83905-01 ideal for high performance, single
ended applications that also require a limited output voltage.
Pin Assignments
20
GND 1
GND 2
BCLK0 3
19
18
17
83905-01
16
15 BCLK5
14 VDDO
13 BCLK4
Features
⢠Six LVCMOS outputs
⢠Outputs able to drive 12 series terminated lines
⢠Crystal Oscillator Interface
⢠Crystal input frequency range: 10MHz to 40MHz
⢠Output skew: 95ps (maximum)
⢠RMS phase jitter @ 25MHz, (100Hz â 1MHz): 0.17ps (typical)
Offset
Noise Power
100Hz................. -115 dBc/Hz
1kHz ................... -138 dBc/Hz
10kHz ................. -154 dBc/Hz
100kHz ............... -160 dBc/Hz
⢠Synchronous output enables
⢠Power supply modes: Full 1.8V, 1.5V, 1.2V
Mixed 1.8V core/1.5V output operating supply
Mixed 1.8V core/1.2V output operating supply
Mixed 1.5V core/1.2V output operating supply
⢠0°C to 70°C ambient operating temperature
⢠Available in lead-free (RoHS 6) package
VDDO 4
12 GND
BCLK1 5
11 GND
6
7
8
9
10
Block Diagram
BCLK0
20-pin, 4mm x 4mm VFQFN Package
XTAL_OUT 1
ENABLE2 2
GND 3
BCLK0 4
VDDO
5
BCLK1 6
GND 7
BCLK2 8
16 XTAL_IN
15 ENABLE1
14 BCLK5
13
VDDO
12 BCLK4
11 GND
10 BCLK3
9
VDD
XTAL_IN
XTAL_OUT
ENABLE 1
ENABLE 2
SYNCHRONIZE
SYNCHRONIZE
BCLK1
BCLK2
BCLK3
BCLK4
BCLK5
83905-01
16-pin, 4.4mm x 5.0mm TSSOP Package
83905-01 REVISION 1 05/01/15
1
©2015 Integrated Device Technology, Inc.
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