MK2049-45SI IDT, Integrated Device Technology Inc, MK2049-45SI Datasheet - Page 2

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MK2049-45SI

Manufacturer Part Number
MK2049-45SI
Description
IC CLK PLL COMM 3.3V 20-SOIC
Manufacturer
IDT, Integrated Device Technology Inc
Type
PLL Clock Synthesizerr
Datasheet

Specifications of MK2049-45SI

Pll
Yes
Input
Clock
Output
Clock
Number Of Circuits
1
Ratio - Input:output
1:3
Differential - Input:output
No/No
Frequency - Max
49.152MHz
Divider/multiplier
Yes/Yes
Voltage - Supply
3.15 V ~ 3.45 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-SOIC
Frequency-max
49.152MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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Pin Assignment
Pin Descriptions
IDT™ / ICS™ 3.3 VOLT COMMUNICATIONS CLOCK PLL
MK2049-45
3.3 VOLT COMMUNICATIONS CLOCK PLL
Number
Pin
CLK/2
FCAP
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
GND
VDD
VDD
CLK
FS1
X2
X1
8k
1
2
3
4
5
6
7
8
9
10
Name
FCAP
CLK/2
CAP1
GND
ICLK
GND
GND
VDD
VDD
VDD
CLK
Pin
FS1
FS2
FS3
X2
X1
8k
20
19
18
17
16
15
14
13
12
11
Output
Output
Output
Power
Power
Power
Power
Power
Power
Type
Input
Input
Input
Input
Input
Input
Loop
Filter
Pin
-
FS0
RES
CAP2
GND
CAP1
VDD
GND
ICLK
FS3
FS2
Frequency select 1. Determines CLK input/outputs per table on page 2.
Internal pull-up resistor.
Crystal connection. Connect to a MHz crystal as shown in table on page 2.
Crystal connection. Connect to a MHz crystal as shown in table on page 2.
Power supply. Connect to +3.3V.
Filter capacitor. Connect a 1000 pF ceramic capacitor to ground.
Power supply. Connect to +3.3V.
Connect to ground
Clock output determined by status of FS3:0 per tables on page 2.
Clock output determined by status of FS3:0 per tables page 2. Always 1/2 of
CLK.
Recovered 8 kHz clock output.
Frequency select 2. Determines CLK input/outputs per table on page 2.
Internal pull-up resistor.
Frequency select 3. Determines CLK input/outputs per table on page 2.
Internal pull-up resistor.
Input clock connection. Connect to 8 kHz backplane or MHz clock.
Connect to ground.
Power Supply. Connect to +3.3V.
Connect the loop filter capacitors and resistor between this pin and CAP2.
Connect to ground.
2
Pin Description
VCXO AND SYNTHESIZER
MK2049-45
REV G 101904

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