8523AGI-03LNT IDT, 8523AGI-03LNT Datasheet

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8523AGI-03LNT

Manufacturer Part Number
8523AGI-03LNT
Description
Clock Drivers & Distribution
Manufacturer
IDT
Datasheet

Specifications of 8523AGI-03LNT

Rohs
yes
Part # Aliases
ICS8523AGI-03LNT

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Part Number
Manufacturer
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Part Number:
8523AGI-03LNT
Manufacturer:
IDT
Quantity:
20 000
B
8523AGI-03
G
The ICS8523I-03 is a low skew, high performance 1-to-4
Differential-to-LVHSTL fanout buffer. The ICS8523I-03 has
two selectable clock inputs.The input pairs can accept most
standard differential input levels. The clock enable is
internally synchronized toeliminate runt pulses on the
outputs during asynchronousassertion/deassertion of the
clock enable pin.
Guaranteed output and part-to-part skew characteristics
make the ICS8523I-03 ideal for those applications
demanding well defined performance and repeatability.
LOCK
ENERAL
CLK_SEL
CLK_EN
nCLK0
nCLK1
CLK0
CLK1
D
IAGRAM
D
ESCRIPTION
0
1
D
LE
Q
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
www.idt.com
1
F
P
D
4 differential LVHSTL compatible outputs
Selectable differential CLK0, nCLK0 and CLK1, nCLK1
clock inputs
Clock input pairs can accept the following differential
input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL
Maximum output frequency: 650MHz
Translates any single-ended input signal to LVHSTL
levels with resistor bias on nCLK input
Output skew: 50ps (maximum)
Part-to-part skew: 400ps (maximum)
Propagation delay: 1.2ns (typical)
V
3.3V core, 1.8V output operating supply
Lead-Free package available
-40°C to 85°C ambient operating temperature
EATURES
IN
IFFERENTIAL
OH
= 1V (maximum)
A
SSIGNMENT
6.5mm x 4.4mm x 0.92mm body package
CLK_SEL
CLK_EN
nCLK0
nCLK1
-
CLK0
CLK1
TO
GND
V
nc
nc
DD
ICS8523I-03
20-Lead TSSOP
-LVHSTL F
G Package
Top View
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
ICS8523I-03
L
OW
Q0
nQ0
V
Q1
nQ1
Q2
nQ2
V
Q3
nQ3
DDO
DDO
ANOUT
S
REV. A AUGUST 12, 2010
KEW
, 1-
B
UFFER
TO
-4

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8523AGI-03LNT Summary of contents

Page 1

... IAGRAM D CLK_EN Q LE CLK0 0 nCLK0 CLK1 1 nCLK1 CLK_SEL 8523AGI- -LVHSTL F IFFERENTIAL TO F EATURES 4 differential LVHSTL compatible outputs Selectable differential CLK0, nCLK0 and CLK1, nCLK1 clock inputs Clock input pairs can accept the following differential input levels: LVDS, LVPECL, LVHSTL, SSTL, HCSL ...

Page 2

... 8523AGI-03 D IFFERENTIAL ...

Page 3

... 8523AGI-03 D IFFERENTIAL T ABLE ...

Page 4

... D IFFERENTIAL 4.6V NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the -0. 0.5V CC device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions be- 50mA yond those listed in the DC Characteristics or AC Character- 100mA istics is not implied ...

Page 5

... 8523AGI-03 D IFFERENTIAL , V = 3.3V±5 1.8V±0.2V DDO ...

Page 6

... Q0: ROPAGATION ELAY nQ0:nQ3 Q0:Q3 Pulse Width t PERIOD t PW odc = t PERIOD UTPUT UTY YCLE ULSE IDTH 8523AGI-03 D IFFERENTIAL M I EASUREMENT V DD SCOPE Qx nCLK0, nCLK1 V PP CLK0, CLK1 nQx GND C D EST IRCUIT IFFERENTIAL PART 1 nQx Qx PART 2 nQy Qy ...

Page 7

... Figure 2 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF = V generated by the bias resistors R1, R2 and C1. This bias circuit should be located as close as possible to the input pin. The ratio Single Ended Clock Input F IGURE 8523AGI-03 D IFFERENTIAL A I PPLICATION NFORMATION ...

Page 8

... CLK/ CLK I D IGURE N NPUT RIVEN BY 3.3V LVPECL D RIVER WITH 8523AGI-03 D IFFERENTIAL examples only. Please consult with the vendor of the driver and V must meet component to confirm the driver termination requirements. For OH example in Figure 4A, the input termination applies for LVHSTL drivers. If you are using an LVHSTL driver from another vendor, use their termination recommendation ...

Page 9

... ICS8523I-03 LVHSTL buffer. Figure 3 shows a schematic ex- ample of the ICS8523I-03 LVHSTL Clock buffer. In this example, 1. Ohm Ohm LVHSTL Driver R9 R10 IGURE XAMPLE 8523AGI-03 D IFFERENTIAL the input is driven by an LVHSTL driver. CLK_EN is set at logic low to select CLK0/nCLK0 input. 3.3V R12 GND Q0 2 ...

Page 10

... 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. 8523AGI-03 D IFFERENTIAL P C OWER ONSIDERATIONS = 3. 3.465V, which gives worst case results. ...

Page 11

... Pd_L is the power dissipation when the output drives low. Pd_H = ( OH_MAX L DDO_MAX OH_MAX Pd_L = ( OL_MAX L DDO_MAX OL_MAX Pd_H = (1V/ (2V - 1V) = 20mW Pd_L = (0.4V/ (2V - 0.4V) = 12.8mW Total Power Dissipation per output pair = Pd_H + Pd_L = 32.8mW 8523AGI-03 D IFFERENTIAL V DDO Q1 5. LVHSTL D C RIVER IRCUIT AND ) ) www.idt.com 11 ICS8523I- KEW ...

Page 12

... 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 ICS8523I-03 is: 472 8523AGI-03 D IFFERENTIAL R I ELIABILITY NFORMATION 20 L ...

Page 13

... ACKAGE UTLINE UFFIX FOR T ABLE Reference Document: JEDEC Publication 95, MS-153 8523AGI-03 D IFFERENTIAL TSSOP EAD ACKAGE IMENSIONS ...

Page 14

... 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. 8523AGI-03 D ...

Page 15

... " " 8523AGI-03 D IFFERENTIAL ...

Page 16

... 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 8523AGI-03 D IFFERENTIAL Sales ...

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