85357AG-01LF IDT, 85357AG-01LF Datasheet

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85357AG-01LF

Manufacturer Part Number
85357AG-01LF
Description
Clock Drivers & Distribution
Manufacturer
IDT
Datasheet

Specifications of 85357AG-01LF

Product Category
Clock Drivers & Distribution
Rohs
yes
Part # Aliases
ICS85357AG-01LF

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
85357AG-01LFT/85357AG-01
Manufacturer:
ST
Quantity:
115
B
XT ALOUT1
XT ALOUT2
XT ALOUT3
G
The
Oscillator-to-3.3V LVPECL / ECL Multiplexer . The ICS85357-
11 has 4 selectable crystal inputs. The device can support
10MHz to 27MHz parallel resonant crystals by connecting
external capacitors between XTALIN/XTALOUT and ground.
The select pins have internal pulldown resistors and leaving
one input unconnected (pulled to logic low by the internal
resistor) will transform the device into a 2:1 multiplexer. The
SEL1 lead is the most significant line and the binary number
applied to the select pins will select the same numbered data
input (i.e., 00 selects XTALIN0/XTALOUT0).
XT ALOUT0
85357AG-11
XTALIN1
XTALIN2
XTALIN3
XTALIN0
LOCK
ENERAL
ICS85357-11
D
OSC
OSC
OSC
OSC
IAGRAM
D
ESCRIPTION
is
a
00
11
01
10
SEL1
4:1
SEL0
or
2:1,
Crystal
www.idt.com
1
Q0
nQ0
F
P
4:1
One differential 3.3V LVPECL output
4:1 or 2:1 Crystal Oscillator Multiplexer
Supports parallel resonant crystals with a frequency range
of 10MHz to 27MHz. The oscillator circuit is optimized for
parallel resonant mode, and will require external capacitance
Maximum output frequency: 27MHz
LVCMOS/LVTTL SEL0 and SEL1 inputs have
internal pulldown resistors
LVPECL mode operating voltage supply range:
V
ECL mode operating voltage supply range:
V
0°C to 70°C ambient operating temperature
Industrial temperature information available upon request
Available in both standard (R0HS 5) and lead-free
(RoHS 6) packages
EATURES
IN
CC
CC
= 3.135V to 3.465V, V
= 0V, V
OR
A
4.40mm x 6.50mm x 0.92mm body package
SSIGNMENT
2:1, C
EE
= -3.135V to -3.465V
XTALOUT0
XTALOUT1
XTALOUT2
XTALOUT3
XTALIN0
XTALIN1
XTALIN2
XTALIN3
LVPECL / ECL M
V
RYSTAL
V
ICS85357-11
20-Lead TSSOP
CC
EE
G Package
Top View
1
2
3
4
5
6
7
8
9
10
EE
= 0V
O
20
19
18
17
16
15
14
13
12
11
ICS85357-11
SCILLATOR
V
SEL1
SEL0
V
Q0
nQ0
V
nc
nc
V
CC
CC
CC
EE
REV. D OCTOBER 4, 2010
ULTIPLEXER
-
TO
-3.3V

Related parts for 85357AG-01LF

85357AG-01LF Summary of contents

Page 1

... OSC XT ALOUT1 XTALIN2 OSC 10 XT ALOUT2 XTALIN3 11 OSC XT ALOUT3 SEL1 85357AG-11 4 EATURES or 2:1, Crystal One differential 3.3V LVPECL output 4:1 or 2:1 Crystal Oscillator Multiplexer Supports parallel resonant crystals with a frequency range of 10MHz to 27MHz. The oscillator circuit is optimized for parallel resonant mode, and will require external capacitance ...

Page 2

... 85357AG-11 4 ...

Page 3

... C OR 4.6V NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the + 0 device. These ratings are stress specifications only. Functional + 0.5V operation of product at these conditions or any conditions be- ...

Page 4

... UTPUT OAD EST IRCUIT nQ0 Q0 Pulse Width t PERIOD t PW odc = t PERIOD UTPUT UTY YCLE ULSE IDTH 85357AG-11 4 EASUREMENT SCOPE Qx Clock 20% nQx Outputs O R UTPUT ISE ERIOD www.idt.com 4 ICS85357-11 2: RYSTAL SCILLATOR TO LVPECL / ECL M ULTIPLEXER NFORMATION ...

Page 5

... ESULTS OF RYSTAL Crystal Frequency C1 (MHz) (pF) 14.31818 22 15.00 22 16.66 22 19.44 22 24.00 22 85357AG-11 4:1 2: PPLICATION NFORMATION suitable for most applications. Additional accuracy can be achieved by adding two small capacitors C1 and C2 as shown in Figure 1 . Typical results using parallel 18pF crystals are shown in Table 7. XTAL_IN C1 22p X1 XTAL_OUT ...

Page 6

... 2A. LVPECL O IGURE UTPUT 85357AG-11 4:1 2: transmission lines. Matched impedance techniques should be used to maximize operating frequency and minimize signal distortion. Figures 2A and 2B show two different layouts which are recommended only as guidelines. Other suitable clock lay- outs may exist and it would be recommended that the board designers simulate to guarantee compatibility across all printed circuit and clock component process variations ...

Page 7

... ABLE HERMAL ESISTANCE FOR JA Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs. 85357AG-11 4:1 2: OWER ONSIDERATIONS = 3. 3.465V, which gives worst case results. ...

Page 8

... Pd_L is the power dissipation when the output drives low. Pd_H = [(V – 2V))/ OH_MAX CC_MAX L [(2V - 0.9V)/ 0.9V = 19.8mW Pd_L = [(V – 2V))/ OL_MAX CC_MAX L [(2V - 1.7V)/ 1.7V = 10.2mW Total Power Dissipation per output pair = Pd_H + Pd_L = 30mW 85357AG-11 4:1 2: LVPECL RIVER IRCUIT AND – 0.9V CC_MAX – 1.7V CC_MAX - V ...

Page 9

... Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs RANSISTOR OUNT The transistor count for ICS85357-11 is: 413 85357AG-11 4:1 2: ELIABILITY NFORMATION ...

Page 10

... ACKAGE UTLINE UFFIX FOR T ABLE Reference Document: JEDEC Publication 95, MO-153 85357AG-11 4:1 2: TSSOP EAD 10 ACKAGE IMENSIONS ...

Page 11

... Any other applications such as those requiring high reliability, or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. 85357AG-11 4:1 ...

Page 12

... 85357AG-11 4 ...

Page 13

... Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT, the IDT logo, ICS and HiPerClockS are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA 85357AG-11 4:1 2: ...

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