Crystal connection or external reference clock input.
Crystal connection. If using an external reference, this pin should be left open.
Frequency Select.Pull LOW to select Low Frequency range. Selects High Frequency
range when pulled HIGH. Has an internal pull-up resistor (see
Frequency Selection Table
for
details).
Ground.
Buffered Modulated clock output.
Modulation Rate Select. When LOW selects Low Modulation Rate.
Selects High Modulation Rate when pulled HIGH. Has an internal pull-down resistor.
Analog Spread Selection through external resistor to GND.
3.3V / 2.5V supply Voltage
Frequency Selection table
VDD(V)
2.5V
1
0
3.3V
1
20-70
20-60
10-27
FS
0
Frequency (MHz)
10-20
Rev. 1 | Page 2 of 12 | www.onsemi.com
PCS3P73U00A
Absolute Maximum Rating
Symbol
V
DD
T
STG
T
s
T
J
T
DV
Storage temperature
Max. Soldering Temperature (10 sec)
Junction Temperature
Static Discharge Voltage (As per JEDEC STD22- A114-B)
Parameter
Rating
-0.5 to +4.6
-65 to +125
260
150
2
Unit
V
°C
°C
°C
KV
Voltage on any pin with respect to Ground
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.
Operating Conditions
Parameter
V
DD(3.3V)
V
DD(2.5V)
T
A
C
L
C
IN
Supply Voltage
Supply Voltage
Operating Temperature (Ambient Temperature)
Load Capacitance
Input Capacitance
Description
Min
3.0
2.3
0
Max
3.6
2.7
+70
10
7
Unit
V
V
°C
pF
pF
Electrical Characteristics for 3.3V Supply voltage
Parameter
V
DD
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
I
CC
I
DD
Z
o
Description
Supply Voltage
Input LOW Voltage
Input HIGH Voltage
Input LOW Current
Input HIGH Current
Output LOW Voltage
Output HIGH Voltage
Static Supply Current
Dynamic Supply Current
Output Impedance
V
IN
= 0V
V
IN
= V
DD
I
OL
= 8mA
Test Conditions
Min
3.0
Typ
3.3
Max
3.6
0.8
Unit
V
V
V
2.0
-50
50
0.4
2.4
750
8
12
30
µA
µA
V
V
µA
mA
:
I
OH
= -8mA
XIN / CLKIN pulled to GND
Unloaded outputs
FS=0; @ 12MHz
FS=1; @ 48MHz
Rev. 1 | Page 3 of 12 | www.onsemi.com
PCS3P73U00A
Switching Characteristics for 3.3 Supply Voltage
Parameter
Input Frequency
FS=0
FS=1
FS=0
FS=1
1,2
Test Conditions
Min
10
20
10
20
45
Typ
12
48
12
48
50
1.1
0.7
±150
Max
27
70
27
70
55
Unit
MHz
ModOUT
Duty Cycle
Measured at V
DD
/2
Measured between 20% to 80%
Measured between 80% to 20%
%
nS
nS
pS
Rise Time
1,2
Fall Time
1,2
PLL Lock Time
2
Notes:
Cycle-to-Cycle Jitter
1,2
Loaded outputs
Stable power supply, valid clock presented on XIN / CLKIN pin
1. All parameters are specified with 10pF loaded outputs.
2. Parameter is guaranteed by design and characterization. Not 100% tested in production.
3
mS
Electrical Characteristics for 2.5V Supply voltage
Parameter
V
DD
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
I
CC
I
DD
Z
o
Description
Supply Voltage
Input LOW Voltage
Input HIGH Voltage
Input LOW Current
Input HIGH Current
Output LOW Voltage
Output HIGH Voltage
Static Supply Current
Dynamic Supply Current
Output Impedance
V
IN
= 0V
V
IN
= V
DD
I
OL
= 8mA
Test Conditions
Min
2.3
Typ
2.5
Max
2.7
0.7
Unit
V
V
V
1.7
-50
50
0.6
1.8
500
5
8
40
µA
µA
V
V
µA
mA
:
I
OH
= -8mA
XIN / CLKIN pulled to GND
Unloaded outputs
FS=0; @ 12MHz
FS=1; @ 48MHz
Switching Characteristics for 2.5V Supply Voltage
Parameter
Input Frequency
FS=0
FS=1
FS=0
FS=1
Measured at V
DD
/2
Measured between 20% to 80%
Measured between 80% to 20%
Test Conditions
Min
10
20
10
20
45
Typ
12
48
12
48
50
1.6
0.8
±200
Max
20
60
20
60
55
Unit
MHz
ModOUT
Duty Cycle
1,2
Rise Time
1,2
Fall Time
1,2
PLL Lock Time
2
Notes:
%
nS
nS
pS
Cycle-Cycle Jitter
1,2
Loaded outputs
Stable power supply, valid clock presented on XIN / CLKIN pin
3
mS
1. All parameters are specified with 10pF loaded outputs.
2. Parameter is guaranteed by design and characterization. Not 100% tested in production.
Rev. 1 | Page 4 of 12 | www.onsemi.com
PCS3P73U00A
R
Crystal
R1 = 510
C1 = 27 pF
C2 = 27 pF
Fig. 1:
Typical Crystal Interface Circuit
Note: For AC Coupled Interface refer to Application Brief: CT100801.
Typical Crystal Specifications
Fundamental AT cut parallel resonant crystal
Nominal frequency
Frequency tolerance
Operating temperature range
Storage temperature
Load capacitance
Shunt capacitance
ESR
48MHz
±50ppm or better at 25°C
-25°C to +85°C
-40°C to +85°C
18pF
7pF maximum
25
:
R
Compliance
The value of the compliance resistor, R
Compliance
sets the
USB2.0 signaling rate (frequency) deviation to 1000ppm
peak-to-peak (+/-500ppm). It causes a -4dB peak power
EMI reduction at the 480MHz fundamental USB2.0
frequency. Higher harmonics are reduced more.
If the R
Compliance
is set to a lower value than its compliance
limit, it will set the USB2.0 signaling rate (frequency)
deviation to above 1000ppm peak-to-peak. For settings
above 1000ppm the USB2.0 compliance pass/fail
becomes gradually intermittent. USB2.0 functionality is
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