Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not
used.
No connect.
External reference clock input.
Power supply for the entire chip.
Spread spectrum clock output.
Ground connection.
Rev. 2 | Page 2 of 11 | www.onsemi.com
ASM3P2669A
Pin Configuration (8-pin SOIC and TSSOP Package)
CLKIN
1
NC
2
8
7
VDD
NC
ModOUT
VSS
ASM3P2669A
6
5
PD
3
NC
4
Pin Description
Pin#
1
2
3
4
5
6
7
8
Pin Name
CLKIN
NC
PD
NC
VSS
ModOUT
NC
VDD
Type
I
External reference clock input.
No Connect.
I
Description
Power-down control pin. Pull low to enable power-down mode. Connect to VDD if not
used.
No connect.
P
O
Ground connection.
Spread spectrum clock output.
No connect.
P
Power supply for the entire chip
Specifications
VDD (V)
2.5
3.3
Frequency Range (MHz)
6-12
6-13
Modulation Rate
F
IN
/256
Absolute Maximum Ratings
Symbol
VDD, V
IN
T
STG
T
A
T
s
T
J
T
DV
Storage temperature
Operating temperature
Parameter
Rating
-0.5 to +4.6
-65 to +125
-40 to +85
260
150
2
Unit
V
°C
°C
°C
°C
KV
Voltage on any pin with respect to Ground
Max. Soldering Temperature (10 sec)
Junction Temperature
Static Discharge Voltage
(As per JEDEC STD22- A114-B)
Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect
device reliability.
Rev. 2 | Page 3 of 11 | www.onsemi.com
ASM3P2669A
DC Electrical Characteristics for 2.5V Supply
Symbol
Parameter
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
I
DD
I
CC
VDD
t
ON
Z
OUT
Input low voltage
Input high voltage
Input low current
Input high current
Output low voltage (VDD = 2.5 V, I
OL
= 8mA)
Output high voltage (VDD = 2.5 V, I
OH
= 8mA)
Static supply current
Operating voltage
Power-up time (first locked cycle after power-up)
Output impedance
2
1
Min
VSS-0.3
2.0
Typ
Max
0.8
VDD+0.3
-35
35
0.6
Unit
V
V
µA
µA
V
V
uA
mA
V
mS
Ω
1.8
10
2
2.375
2.5
40
2.5
2.625
5
Dynamic supply current (Unloaded Output)
Notes: 1. XIN / CLKIN pin and PD pin are pulled low.
2. V
DD
and XIN / CLKIN input are stable, PD pin is made high from low.
AC Electrical Characteristics for 2.5V Supply
Symbol
CLKIN
ModOUT
Input frequency
Output frequency
CLKIN = 6MHz
f
d
1
1
Parameter
Min
6
6
Typ
Max
12
12
Unit
MHz
MHz
±1.25
±1
±0.9
0.9
0.6
45
1.7
1
50
±250
2.5
1.5
55
±400
nS
nS
%
pS
%
Frequency Deviation
CLKIN = 10MHz
CLKIN = 12MHz
t
LH
t
HL
Output Rise time (measured from 0.7V to 1.7V)
Output Fall time (measured from 1.7V to 0.7V)
Output Duty Cycle
Cycle-to-Cycle Jitter
t
D
t
JC
Note: 1. t
LH
and t
HL
are measured into a capacitive load of 15pF.
Rev. 2 | Page 4 of 11 | www.onsemi.com
ASM3P2669A
DC Electrical Characteristics for 3.3V Supply
Symbol
Parameter
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
I
DD
I
CC
VDD
t
ON
Z
OUT
Input low voltage
Input high voltage
Input low current
Input high current
Output low voltage (VDD = 3.3 V, I
OL
= 8mA)
Output high voltage (VDD = 3.3 V, I
OH
= 8mA)
Static supply current
Operating voltage
Power-up time (first locked cycle after power-up)
Output impedance
2
1
Min
VSS-0.3
2.0
Typ
Max
0.8
VDD+0.3
-35
35
0.4
Unit
V
V
µA
µA
V
V
uA
mA
V
mS
Ω
2.5
2.5
2.7
3.3
35
-
10
3
3.6
5
Dynamic supply current (Unloaded Output)
Notes: 1. XIN / CLKIN pin and PD pin are pulled low.
2. V
DD
and XIN / CLKIN input are stable, PD pin is made high from low.
AC Electrical Characteristics for 3.3V Supply
Symbol
CLKIN
ModOUT
Input frequency
Output frequency
CLKIN = 6MHz
f
d
Frequency Deviation
CLKIN = 10MHz
CLKIN = 13MHz
t
LH
t
HL
1
1
Parameter
Min
6
6
Typ
Max
13
13
Unit
MHz
MHz
±1.25
±1
±0.9
0.7
0.6
45
1.3
0.9
50
±300
1.7
1.3
55
±450
nS
nS
%
pS
%
Output Rise time (measured from 0.8V to 2.0V)
Output Fall time (measured at 2.0V to 0.8V)
Output Duty Cycle
Cycle - Cycle Jitter
t
D
t
JC
Note: 1. t
LH
and t
HL
are measured into a capacitive load of 15pF.
Note: All parameters are at an Extended Industrial temperature range unless otherwise stated.
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