mk2058-01 Integrated Device Technology, mk2058-01 Datasheet - Page 4

• Manufacturer Part Number: mk2058-01
• Description: Communications Clock Jitter Attenuator
• Manufacturer: Integrated Device Technology

Referencing the External Component Schematic on this
page, the external loop filter is made up of the components
R
and therefore influences loop filter characteristics.
Design aid tools for configuring the loop filter can be found
at www.icst.com, including on-line and PC-based
calculators.
Recommended Loop Filter Values Vs. Output Frequency Range Selection
IDT™ / ICS™ COMMUNICATIONS CLOCK JITTER ATTENUATOR
Z
MK2058-01
COMMUNICATIONS CLOCK JITTER ATTENUATOR
, C
1
Note: For SEL input pin programming: 0 = GND, 1 = VDD, M = Floating
SEL2 SEL1 SEL0
and C
M
M
M
M
0
0
0
0
1
1
1
1
2
. R
0
0
1
1
0
0
1
1
0
0
1
1
SET
establishes PLL charge pump current
0
1
0
1
0
1
0
1
0
1
0
1
Multiplier
Crystal
3072
2048
1716
384
128
(N)
16
10
6
4
3
2
1
120 kΩ
1.4 MΩ
1.4 MΩ
1.4 MΩ
540 kΩ
540 kΩ
1.4 MΩ
1.4 MΩ
1.4 MΩ
1.4 MΩ
1.4 MΩ
1.4 MΩ
R
SET
750 kΩ
160 kΩ
130 kΩ
100 kΩ
1.2 MΩ
1.1 MΩ
820 kΩ
470 kΩ
82 kΩ
68 kΩ
56 kΩ
39 kΩ
R
S
4
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
0.1 µF
External Component Schematic
C
S
C
(Refer to Crystal
Tuning section)
P
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
4.7 nF
C
P
R
C
S
S
Bandwidth
(-3dB point)
CHGP
120 Hz
130 Hz
160 Hz
225 Hz
GND
GND
GND
8.5 Hz
ISET
VDD
VDD
VDD
14 Hz
60 Hz
75 Hz
95 Hz
12 Hz
20 Hz
Loop
9 Hz
VIN
X1
C
R
L
SET
VCXO AND SYNTHESIZER
1
2
3
4
5
6
7
8
9
10
Crystal
MK2058-01
Damping
Factor
1
1
1
1
1
1
1
1
1
1
1
1
20
19
18
17
16
15
14
13
12
11
C
L
REV E 072205
GND
ISEL
ICLK1
ICLK2
SEL0
CLK
NC
SEL1
SEL2
X2