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8T39S04A PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 8T39S04A
部品説明 Crystal or Differential to Differential Clock Fanout Buffer
メーカ IDT
ロゴ IDT ロゴ 



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8T39S04A Datasheet, 8T39S04A PDF,ピン配置, 機能
Crystal or Differential to
Differential Clock Fanout Buffer
8T39S04A
Datasheet
General Description
The 8T39S04A is a high-performance clock fanout buffer. The input
clock can be selected from two differential inputs or one crystal input.
The internal oscillator circuit is automatically disabled if the crystal
input is not selected. The crystal pin can be driven by a single-ended
clock.The selected signal is distributed to four differential outputs
which can be configured as LVPECL, LVDS or HSCL outputs. In
addition, an LVCMOS output is provided. All outputs can be disabled
into a high-impedance state. The device is designed for a signal
fanout of high-frequency, low phase-noise clock and data signal. The
outputs are at a defined level when inputs are open or tied to ground.
It is designed to operate from a 3.3V or 2.5V core power supply, and
either a 3.3V or 2.5V output operating supply.
Block Diagram
PullDown
PullDown
Features
Two differential reference clock input pairs
Differential input pairs can accept the following input levels:
LVPECL, LVDS, HCSL, HSTL and Single-ended
Crystal Oscillator Interface
Crystal input frequency range: 10MHz to 40MHz
Maximum Output Frequency
LVPECL - 2GHz
LVDS - 2GHz
HCSL - 250MHz
LVCMOS - 250MHz
Two banks, each has two differential output pairs that can be
configured as LVPECL or LVDS or HCSL
One single-ended reference output with synchronous enable to
avoid clock glitch
Output skew: 80ps (maximum), Bank A and Bank B at the same
output level
Part-to-part skew: 200ps (typical), design target
Additive RMS phase jitter @ 156.25MHz, (12kHz - 20MHz):
34.7fs (typical), 3.3V/ 3.3V
Supply voltage modes:
VDD/VDDO
3.3V/3.3V
3.3V/2.5V
2.5V/2.5V
-40°C to 85°C ambient operating temperature
Lead-free (RoHS 6) packaging
Pin Assignment
REFOUT
24 23 22 21 20 19 18 17
nc 25
16
nCLK1 26
15
CLK1 27
14
VDD 28
REFOUT 29
8T39S04A
13
12
VDDOREF 30
11
OE_SE 31
10
SMODE1 32
9
12345678
REF_SEL1
nCLK0
CLK0
REF_SEL0
XTAL_OUT
XTAL_IN
VDD
SMODE0
©2016 Integrated Device Technology, Inc.
32-pin, 5mm x 5mm VFQFN Package
1 May 20, 2016

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Crystal or Differential to Differential Clock Fanout Buffer

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