MAX9491ETP095+ Maxim Integrated Products, MAX9491ETP095+ Datasheet

IC FACT-PROG PLL CLK GEN 20-TQFN

MAX9491ETP095+

Manufacturer Part Number
MAX9491ETP095+
Description
IC FACT-PROG PLL CLK GEN 20-TQFN
Manufacturer
Maxim Integrated Products
Type
PLL Clock Generatorr
Datasheet

Specifications of MAX9491ETP095+

Pll
Yes
Input
LVCMOS, Crystal
Output
LVCMOS
Number Of Circuits
1
Ratio - Input:output
1:1
Differential - Input:output
No/No
Frequency - Max
200MHz
Divider/multiplier
No/No
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Frequency-max
200MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-3942; Rev 0; 1/06
The MAX9491 multipurpose clock generator is ideal for
communication applications. It offers a factory-program-
mable PLL output that can be set to almost any frequency,
ranging from 4MHz to 200MHz. The MAX9491 uses a
one-time-programmable (OTP) ROM to program the PLL
output. The MAX9491 also features an integrated volt-
age-controlled crystal oscillator (VCXO) that is tuned by a
DC voltage. The VCXO output is used as the PLL input.
The VCXO has a wide ±200ppm (typ) tuning range. The
OTP on the MAX9491 is factory preset, based upon the
customer request. Contact the factory for samples with
preferred frequencies.
The device operates from a 3.3V supply and is speci-
fied over the -40°C to +85°C extended temperature
range. The MAX9491 is available in 14-pin TSSOP and
20-pin TQFN (5mm x 5mm) packages.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
TOP VIEW
Telecommunications
Data Networking Systems
Home Entertainment Centers
SOHO
V
I.C.
I.C.
DD
X2
X1
16
17
18
19
20
________________________________________________________________ Maxim Integrated Products
TQFN (5mm x 5mm)
15
1
General Description
14
MAX9491
2
13
3
12
4
Factory-Programmable, Single PLL
11
5
Applications
10
9
8
7
6
GND
I.C.
I.C.
I.C.
I.C.
♦ 5MHz to 35MHz for Crystal-Clock Reference
♦ 5MHz to 50MHz for a Driver Clock Reference
♦ One Fractional-N PLL with Buffered Output
♦ 4MHz to 200MHz Output Frequency Range
♦ Low RMS Jitter PLL (< 13ps) at 197 MHz
♦ Integrated VCXO with ±200ppm Tuning Range
♦ Available in 14-Pin TSSOP and 20-Pin TQFN
♦ +3.3V Supply
♦ -40°C to +85°C Temperature Range
*Future product—contact factory for availability.
**EP = Exposed pad.
MAX9491ETP
MAX9491EUD*
Packages
PART
TOP VIEW
CLK_OUT
Clock Generator
TUNE
GND
V
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
I.C.
I.C.
X1
DD
1
2
3
4
5
6
7
Ordering Information
MAX9491
Pin Configurations
TSSOP
PIN-
PACKAGE
20 TQFN-EP**
14 TSSOP
14
12
10
13
11
9
8
X2
PD
V
GND
I.C.
GND
I.C.
DD
Features
T2055-5
CODE
U14-2
PKG
1

Related parts for MAX9491ETP095+

MAX9491ETP095+ Summary of contents

Page 1

... TQFN (5mm x 5mm) ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ♦ 5MHz to 35MHz for Crystal-Clock Reference ♦ 5MHz to 50MHz for a Driver Clock Reference ♦ One Fractional-N PLL with Buffered Output ♦ ...

Page 2

Factory Programmable Single PLL Clock Generator ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +4. AGND ......................................................-0.3V to +4.0V DDA All Other Pins to GND ..................................-0. Short-Circuit Duration (all LVCMOS outputs)..............................................Continuous ESD Protection (Human Body ...

Page 3

Factory Programmable Single PLL AC ELECTRICAL CHARACTERISTICS ( +3.0V to +3.6V 10pF and T DD DDA L otherwise noted.) (Note 2) PARAMETER SYMBOL OUTPUT CLOCK (CLK_OUT) Minimum Frequency Range Maximum Frequency Range Clock Rise Time ...

Page 4

Factory Programmable Single PLL Clock Generator ( +3.3V +25° DDA A IN SUPPLY CURRENT vs. TEMPERATURE 13MHz 45MHz OUT -40 -15 10 ...

Page 5

Factory Programmable Single PLL ( +3.3V +25° 13MHz clock DDA A IN VCXO ACCURACY vs. VCXO TUNING RANGE 300 f = 27MHz 45MHz OUT 200 100 0 -100 ...

Page 6

Factory Programmable Single PLL Clock Generator OR REFERENCE INPUT PIN NAME TQFN TSSOP 1 5 TUNE 2 — — AGND 4, 10 GND 5 7 CLK_OUT 6–9, 14, 19 ...

Page 7

Factory Programmable Single PLL should be less than 10pF, including board parasitic capacitance. To achieve up to ±200ppm pullability, make sure the crystal-loading capacitance is less than 14pF. The VCXO is a free-running oscillator. It starts oscillating 27.0405 +150ppm 27.00 ...

Page 8

Factory Programmable Single PLL Clock Generator Board Layout Considerations and The MAX9491’s high-frequency oscillator requires proper layout to ensure stability. For best performance, place components as close as possible to the device. Digital or AC transient signals on GND can ...

Page 9

Factory Programmable Single PLL (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) _______________________________________________________________________________________ Clock Generator Package Information PACKAGE OUTLINE, TSSOP 4.40mm BODY 1 21-0066 G ...

Page 10

Factory Programmable Single PLL Clock Generator (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) D D/2 MARKING AAAAA PIN # 1 I.D. C -DRAWING NOT ...

Page 11

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 11 © 2006 Maxim Integrated Products ...

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