ICS2059-02 Datasheet, PDF (2/11 Pages) Integrated Circuit Systems – Clock Multiplier and Jitter Attenuator

ICS2059-02
Clock Multiplier and Jitter Attenuator
Pin Assignment
X1 1
VDD 2
VDD 3
VDD 4
VIN 5
GND 6
GND 7
CHGP 8
16 X2
15 ISEL
14 ICLK1
13 ICLK2
12 SEL0
11 CLK
10 SEL1
9 ISET
16- pin( 173mil) TSSOP
Output Frequency Select Table
Input
SEL1 SEL0
N
Output Clock Crystal Used
(MHz)
(MHz)
8 kHz
0 0 1296 10.368
20.736
8 kHz
0 1 2430 19.44
19.44
15.625 kHz 1 0 1728
27
27
15.734265 kHz 1 1 1716
27
27
151.875 kHz M 0 128 19.44
19.44
27 MHz
M1 1
27
27
Note: For SEL input pin programming:
0 = GND, 1 = VDD, M = Floating
Pin Descriptions
Pin
Number
1
2
3
4
5
Pin
Name
X1
VDD
VDD
VDD
VIN
6
GND
7
GND
8
CHGP
9
ISET
10
SEL1
11
CLK
12
SEL0
13
ICLK2
14
ICLK1
15
ISEL
16
X2
Pin
Type
—
Power
Power
Power
Input
Power
Power
Output
—
Input
Output
Input
Input
Input
Input
—
Pin Description
Crystal Input. Connect this pin to the specified crystal.
Power Supply. Connect to +3.3 V.
Power Supply. Connect to +3.3 V.
Power Supply. Connect to +3.3 V.
VCXO Control Voltage Input. Connect this pin to CHGP pin and the
external loop filter as shown in this data sheet.
Connect to ground.
Connect to ground.
Charge Pump Output. Connect this pin to the external loop filter and to
pin VIN.
Charge pump current setting node, connection for setting resistor.
Output Frequency Selection Pin 1. Determines output frequency as
per table above. Includes mid-level input.
Clock Output.
Output Frequency Selection Pin 0. Determines output frequency as
per table above. Internal pull-up resistor.
Input Clock Connection 2. Connect an input reference clock to this pin.
If unused, connect to ground.
Input Clock Connection 1. Connect an input reference clock to this pin.
If unused, connect to ground.
Input Selection. Used to select which reference input clock is active.
Low input level selects ICLK1, high input level selects ICLK2. Internal
pull-up resistor.
Crystal Output. Connect this pin to the specified crystal.
MDS 2059-02 C
2
Revision 031605
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