85314AGI-11LFT IDT, 85314AGI-11LFT Datasheet

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85314AGI-11LFT

Manufacturer Part Number
85314AGI-11LFT
Description
Clock Drivers & Distribution Low Skew 1-to-5 Diff -to-2.5V/3.3V LVPECL
Manufacturer
IDT
Datasheet

Specifications of 85314AGI-11LFT

Rohs
yes
Part # Aliases
ICS85314AGI-11LFT
Block Diagram
nCLK_EN
General Description
clock enable is internally synchronized to eliminate runt clock pulses
on the outputs during asynchronous assertion/deassertion of the
clock enable pin.
Guaranteed output and part-to-part skew characteristics make the
ICS85314I-11 ideal for those applications demanding well defined
performance and repeatability.
CLK_SEL
ICS85314AGI-11 REVISION E MAY 4, 2010
HiPerClockS™
ICS
nCLK0
nCLK1
CLK0
CLK1
Pulldown
Pulldown
Pullup
Pullup
Pulldown
Pulldown
The ICS85314I-11 is a low skew, high performance
1-to-5 Differential-to-2.5V/3.3V LVPECL fanout buffer.
The ICS85314I-11 has two selectable differential clock
inputs. The CLK0, nCLK0 and CLK1, nCLK1 pairs can
accept most standard differential input levels. The
0
1
Low Skew, 1-to-5 Differential-to-2.5V, 3.3V
LVPECL Fanout Buffer
CK
D
Q
Q0
nQ0
Q1
nQ1
Q2
nQ2
Q3
nQ3
Q4
nQ4
1
Features
Five differential 2.5V/3.3V LVPECL outputs
Selectable differential CLKx, nCLKx inputs
CLK0, nCLK0 and CLK1, nCLK1 pairs can accept the following
differential input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL
Maximum output frequency: 700MHz
Translates any single-ended input signal to 3.3V
LVPECL levels with resistor bias on nCLK input
Output skew: 30ps (maximum)
Propagation delay: 1.8ns (maximum)
RMS phase jitter @ 155.52MHz (12kHz - 20MHz):
0.05ps (typical)
LVPECL mode operating voltage supply range:
V
-40°C to 85°C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6)
packages
CC
= 2.375V to 3.8V, V
6.5mm x 4.4mm x 0.92mm package body
7.5mm x 12.8mm x 2.3mm package body
Pin Assignment
nQ0
nQ1
nQ2
nQ3
nQ4
20-Lead TSSOP
Q0
Q2
Q3
Q4
Q1
20-Lead SOIC
ICS85314I-11
ICS85314I-11
EE
G Package
M Package
Top View
Top View
= 0V
1
2
3
4
5
6
7
8
9
10
©2010 Integrated Device Technology, Inc.
20
19
18
17
16
15
14
13
12
11
V
nCLK_EN
V
nCLK1
CLK1
RESERVED
nCLK0
CLK_SEL
V
CC
CC
EE
ICS85314I-11
DATA SHEET

Related parts for 85314AGI-11LFT

85314AGI-11LFT Summary of contents

Page 1

... Pulldown CLK1 Pullup 1 nCLK1 Pulldown CLK_SEL ICS85314AGI-11 REVISION E MAY 4, 2010 Features • Five differential 2.5V/3.3V LVPECL outputs • Selectable differential CLKx, nCLKx inputs • CLK0, nCLK0 and CLK1, nCLK1 pairs can accept the following differential input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL • ...

Page 2

... IN R Input Pullup Resistor PULLUP R Input Pulldown Resistor PULLDOWN ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER Type Description Differential output pair. LVPECL interface levels. Differential output pair. LVPECL interface levels. Differential output pair. LVPECL interface levels. Differential output pair. LVPECL interface levels. ...

Page 3

... Q[0:4] Figure 1. nCLK_EN Timing Diagram Table 3B. Clock Input Function Table Inputs CLK0 or CLK1 nCLK0 or nCLK1 ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER Selected Source CLK0, nCLK0 CLK1, nCLK1 CLK0, nCLK0 CLK1, nCLK1 Disabled Outputs Q[0:4] nQ[0:4] LOW HIGH ...

Page 4

... Peak-to-Peak Voltage; NOTE Common Mode Range; NOTE 1, 2 CMR NOTE 1: V should not be less than -0.3V IL NOTE 2: Common mode voltage is defined as V ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER Rating 4.6V -0. 50mA 100mA 46.2°C/W (0 lfpm) 73.2°C/W (0 lfpm) -65° ...

Page 5

... NOTE 5: Defined as skew between outputs on different devices operating at the same supply voltage, same temperature, same frequency and with equal load conditions. Using the same type of inputs on each device, the outputs are measured at the differential cross points. ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER = 2.375V to 3.8V ...

Page 6

... ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER 12kHz to 20MHz = 0.05ps (typical) Raw Phase Noise Data Offset Frequency (Hz) 6 155.52MHz RMS Phase Jitter (Random) ©2010 Integrated Device Technology, Inc. ...

Page 7

... LVPECL Output Load AC Test Circuit nQx nQx nQy nQy tsk(o) Output Skew nCLK[0:1] CLK[0:1] nQ[0:4] Q[0: Propagation Delay ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER V CC SCOPE nCLK[0:1] Qx CLK[0:1] nQx V EE Differential Input Level Par t 1 nQx nQx Par t 2 ...

Page 8

... SET-UP HOLD Setup & Hold Time nQ[0:4] Q[0: PERIOD t PW odc = t PERIOD Output Duty Cycle ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER nQ[0:4] Q[0:4] Output Rise/Fall Time x 100% 8 80% 80% 20 ©2010 Integrated Device Technology, Inc 20% ...

Page 9

... All control pins have internal pull-ups or pull-downs; additional resistance is not required but can be added for additional protection. A 1kΩ resistor can be used. ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER line impedance. For most 50Ω applications, R3 and R4 can be 100Ω. ...

Page 10

... R1 50Ω *Optional – R3 and R4 can be 0Ω Figure 3E. CLK/nCLK Input Driven by a 3.3V HCSL Driver ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER with the vendor of the driver component to confirm the driver must meet the V and termination requirements. For example in Figure 3A, the input ...

Page 11

... Figure 4A. 3.3V LVPECL Output Termination ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER transmission lines. Matched impedance techniques should be used to maximize operating frequency and minimize signal distortion. Figures 4A and 4B show two different layouts which are recommended only as guidelines. Other suitable clock layouts may ...

Page 12

... Figure 5A. 2.5V LVPECL Driver Termination Example V = 2.5V CC 50Ω 50Ω 2.5V LVPECL Driver Figure 5C. 2.5V LVPECL Driver Termination Example ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER ground level. The R3 in Figure 5B can be eliminated and the termination is shown in Figure 5C. – very close to CC 2.5V 2.5V ...

Page 13

... Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB design use multi-layered boards. The data in the second row pertains to most designs. ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER = 3.8V, which gives worst case results. ...

Page 14

... OH_MAX CC_MAX [(2V – 0.9V)/50Ω] * 0.9V = 19.8mW Pd_L = [(V – (V – 2V))/R OL_MAX CC_MAX [(2V – 1.7V)/50Ω] * 1.7V = 10.2mW Total Power Dissipation per output pair = Pd_H + Pd_L = 30mW ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER V OUT RL 50Ω – 0.9V ...

Page 15

... Multi-Layer PCB, JEDEC Standard Test Boards NOTE: Most modern PCB design use multi-layered boards. The data in the second row pertains to most designs. Transistor Count The transistor count for ICS85314I-11 is: 674 ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER θ by Velocity ...

Page 16

... Basic L 0.45 0.75 α 0° 8° aaa 0.10 Reference Document: JEDEC Publication 95, MO-153 ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER Package Outline - M Suffix for 20 Lead SOIC Table 8B. Package Dimensions for 20 Lead SOIC 300 Millimeters All Dimensions in Millimeters Symbol Minimum Maximum ...

Page 17

... Ordering Information Table 9. Ordering Information Part/Order Number Marking 85314AGI-11 ICS85314AI11 85314AGI-11T ICS85314AI11 85314AGI-11LF ICS5314AI11L 85314AGI-11LFT ICS5314AI11L 85314AMI-11 ICS85314AI-11 85314AMI-11T ICS85314AI-11 85314AMI-11LF ICS85314AMI-11LF 85314AMI-11LFT ICS85314AMI-11LF NOTE: Parts that are ordered with an "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. ...

Page 18

... Ordering Information Table - added LF marking for SOIC package. Converted datasheet format Ordering Information Table - corrected package in the Package Column. ICS85314AGI-11 REVISION E MAY 4, 2010 LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-2.5V, 3.3V LVPECL FANOUT BUFFER Description of Change max from row, nCLKx to 5uA from 150uA. ...

Page 19

... IDT or any third parties. IDT’s products are not intended for use in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT ...

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