M1020-13I167.3316LF
| Model | M1020-13I167.3316LF |
| Description | Support Circuit, 1-Func, CQCC36, 9 X 9 MM, CERAMIC, LCC-36 |
| PDF file | Total 10 pages (File size: 440K) |
| Chip Manufacturer | IDT |
See Table 6, Example External Loop Filter Component
PLL bandwidth is affected by loop filter component
values, the “M” value, and the “PLL Loop Constants”
listed in AC Characteristics on pg. 9.
The
MR_SEL3:0
settings can be used to actively change
PLL loop bandwidth in a given application. See “M and
M1020/21
VCSO B
ASED
C
LOCK
PLL
Product Data Sheet
PLL Simulator Tool Available
For guidance on device or loop filter implementa-
tion, contact CMBU (Commercial Business Unit)
Product Applications at (508) 852-5400.
Example External Loop Filter Component Values
1
for M1020-yz-155.5200 and M1021-yz-155.5200
VCSO Parameters: K
VCO
= 200kHz/V, R
IN
= 100kΩ (pin NBW = 0), VCSO Bandwidth = 700kHz.
Device Configuration
Example External Loop Filter Comp. Values
F
VCSO
MR_SEL3:0 MDiv NBW
R
LOOP
C
LOOP
R
POST
C
POST
(MHz)
Nominal Performance Using These Values
(MHz)
F
REF
PLL Loop
Bandwidth
315
Hz
270
Hz
315
Hz
250
Hz
270
Hz
266
Hz
Damping Passband
Factor Peaking
(dB)
5.4
6.7
5.4
6.0
6.7
6.2
0.07
0.05
0.07
0.05
0.05
0.05
19.44
2
38.88
3
77.76
4
77.76
5
155.52
4
155.52
5
155.52
155.52
155.52
155.52
155.52
155.52
0000
0101
8
8
0
0
0
0
0
0
6.8
kΩ
12
kΩ
6.8
kΩ
22
kΩ
12
kΩ
47
kΩ
10
µF
10
µF
10
µF
4.7
µF
10
µF
2.2
µF
82
kΩ
82k
Ω
82k
Ω
82k
Ω
82k
Ω
82k
Ω
1000
pF
1000
pF
1000
pF
1000
pF
1000
pF
1000
pF
0 0 0 1 16
0 1 1 0 32
1 0 1 0 16
1 0 1 1 64
Table 6: Example External Loop Filter Component Values
Note 1: K
VCO
, VCSO Bandwidth, M Divider Value, and External Loop Filter Component Values determine Loop Bandwidth, Damping Factor,
and Passband Peaking. For PLL Simulator software, go to www.icst.com.
Note 2: This row is for the M1020 only.
Note 3: This row is for the M1021 only.
Note 4: Optimal for system clock filtering.
Note 5: Optimal for loop timing mode (LOL or Hitless Switching should not be used).
A
BSOLUTE
M
AXIMUM
R
ATINGS1
Symbol Parameter
Rating
Unit
V
I
V
O
V
CC
T
S
Inputs
Outputs
Power Supply Voltage
Storage Temperature
-
0.5
to V
CC
+
0.5
-
0.5
to V
CC
+
0.5
4.6
V
V
V
o
C
-
45
to +
100
Table 7: Absolute Maximum Ratings
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifications only. Functional operation of product at these conditions
or any conditions beyond those listed in Recommended Conditions of Operation, DC Characteristics, or
may affect product reliability.
R
ECOMMENDED
C
ONDITIONS OF
O
PERATION
Symbol Parameter
Min
3.135
Typ
3.3
Max
3.465
Unit
V
CC
T
A
Positive Supply Voltage
Ambient Operating Temperature
Commercial
Industrial
V
o
C
o
C
0
-40
+
70
+
85
Table 8: Recommended Conditions of Operation
M1020/21 Datasheet Rev 1.0
I n t e g r a t e d C i r c u i t S y s t e m s, I n c .
●
7 of 10
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Revised 28Jul2004
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tel (508) 852-5400
