Custom Clock Generator for Display Systems

PCS3P7100A
Custom Clock Generator for
Display Systems
Features
frequencies. The device addresses the need of a low EMI
clock generator for use in display systems covering wide
choice of pixel frequencies.
• Custom Clock Generator for Display Systems
• Wide Operating Frequency Range covering most of
the pixel frequencies
PCS3P7100A reduces electromagnetic interference
(EMI) at the clock source, allowing system wide reduction
of EMI of all clock dependent signals. PCS3P7100A
allows significant system cost savings by reducing the
number of circuit board layers, ferrite beads, shielding
that are traditionally required to pass EMI regulations.
• Generates a low EMI 1x Output
• 4 Spread Deviation selection options
• Supply voltage : 3.3V ± 0.3V
2.5V ± 0.125V
• Frequency range:
3.3V: 20 MHz-130 MHz
The Supply Voltage of the Device is 3.3V/2.5V. It has two
Spread Selection Pins, SS1% and SS2%. Refer to the
Spread Deviation Selection Table for details.The Device
is available in 6L-TSOT23 Package.
2.5V: 30 MHz-130 MHz
• 6L-TSOT23 (6L- SOT26) package
Product Description
Application
PCS3P7100A is a versatile spread spectrum modulator
designed specifically for a wide range of clock
PCS3P7100A is targeted for use in Display Systems.
Block Diagram
VDD
SS1%
PLL
CLKIN
SS2%
ModOUT
VSS
©2010 SCILLC. All rights reserved.
NOVEMBER 2010 – Rev. 1.1
Publication Order Number:
PCS3P7100/D
PCS3P7100A
Pin Configuration (6L-TSOT23 Package)
CLKIN
1
VSS
2
ModOUT
PCS3P7100A
3
6
VDD
5
SS2%
4
SS1%
Pin Description
Pin#
Pin Name
Type
Description
1
CLKIN
I
External Reference Input frequency.
2
VSS
P
Ground to entire chip.
3
ModOUT
O
Modulated Frequency Output.
4
SS1%
I
5
SS2%
I
6
VDD
P
Spread Deviation Selection Pin -1. Refer to Spread Deviation Selection Table
for details. Has an Internal pull-up resistor.
Spread Deviation Selection Pin -2. Refer to Spread Deviation Selection Table
for details. Has an Internal pull-up resistor.
Power to entire chip.
Spread Deviation Selection Table
SS2% Pin
SS1% Pin
Spread Deviation @ 72MHz
L
L
±1.50%
L
H
±1.25%
H
L
±0.75%
H
H
±1.00%
Rev. 1 | Page 2 of 8 | www.onsemi.com
PCS3P7100A
Absolute Maximum Ratings
Symbol
VDD, VIN
TSTG
Parameter
Rating
Unit
Voltage on any pin with respect to Ground
-0.5 to +4.6
V
Storage temperature
-65 to +125
°C
Ts
Max. Soldering Temperature (10 sec)
260
°C
TJ
Junction Temperature
150
°C
TDV
Static Discharge Voltage (As per JEDEC STD22- A114-B)
2
KV
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 for 2.5V and 3.3V Supply Voltage
Parameter
VDD(2.5)
VDD(3.3)
Description
Supply Voltage
TA
Operating Temperature (Ambient Temperature)
CL
Load Capacitance
DC Electrical Characteristics for 2.5V Supply
Symbol
Parameter
Min
Min
Max
2.375
2.625
3.0
3.6
-40
+85
°C
15
pF
Max
Unit
Typ
Unit
V
VIL
Input low voltage
VSS - 0.3
0.7
V
VIH
Input high voltage
1.7
VDD + 0.3
V
IIL
Input low current
-35
µA
IIH
Input high current
35
µA
VOL
Output low voltage (VDD = 2.5V, IOL = 8mA)
VOH
Output high voltage (VDD = 2.5V, IOH = -8mA)
IDD
Static supply current
0.6
1.8
1
4
ICC
Dynamic supply current (2.5V and no load)
VDD
Operating voltage
tON
Power-up time (first locked cycle after power-up)
11
2.375
V
V
2.5
mA
mA
2.625
V
5
mS
CIN
Input Capacitance
5
pF
ZOUT
Output Impedance
40
Ω
Note: 1. CLKIN pin is pulled low.
Rev. 1 | Page 3 of 8 | www.onsemi.com
PCS3P7100A
AC Electrical Characteristics for 2.5V Supply
Symbol
CLKIN
ModOUT
1
tLH
tHL
1
Parameter
Min
Typ
Max
Unit
Input frequency
30
130
MHz
Output frequency
30
130
MHz
Output rise time (measured from 0.7V to 1.7V)
2.2
nS
Output fall time (measured from 1.7V to 0.7V)
1.2
nS
±250
pS
tJC
Jitter (Cycle-to-cycle)
tD
Output duty cycle
40
50
60
%
Note: 1. tLH and tHL are measured into a capacitive load of 15pF.
DC Electrical Characteristics for 3.3V Supply
Symbol
Parameter
VIL
Min
Typ
Max
Unit
V
Input low voltage
VSS - 0.3
0.8
VIH
Input high voltage
2.0
VDD + 0.3
V
IIL
Input low current
-35
µA
IIH
Input high current
35
µA
VOL
Output low voltage (VDD = 3.3V, IOL = 8mA)
0.4
V
VOH
Output high voltage (VDD = 3.3V, IOH = -8mA)
2.5
V
1
IDD
Static supply current
ICC
Dynamic supply current (3.3V and no load)
4.5
VDD
Operating voltage
tON
Power-up time (first locked cycle after power-up)
CIN
Input Capacitance
5
pF
ZOUT
Output Impedance
40
Ω
14
3.0
mA
mA
3.3
3.6
V
5
mS
Note: 1. CLKIN pin is pulled low.
AC Electrical Characteristics for 3.3V Supply
Symbol
CLKIN
ModOUT
Parameter
Min
Typ
Max
Unit
Input frequency
20
130
MHz
Output frequency
20
130
MHz
tLH*
Output rise time (measured from 0.8 to 2.0V)
1.5
nS
tHL *
Output fall time (measured at 2.0V to 0.8V)
1.1
nS
±225
pS
tJC
Jitter (Cycle-to-cycle)
tD
Output duty cycle
45
Note: 1. *tLH and tHL are measured into a capacitive load of 15pF.
Rev. 1 | Page 4 of 8 | www.onsemi.com
50
55
%
PCS3P7100A
Deviation Charts
Deviation vs Output frequency (35MHz to 130 MHz) at 25C for VDD = 2.5V
2.80%
2.30%
Dev ( % )
1.80%
1.30%
0.80%
0.30%
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
Output ( MHz)
Figure 1
Deviation vs Output frequency (20MHz to 29 MHz) at 25C for VDD = 3.3V
2.50%
2.00%
Dev ( % )
1.50%
1.00%
0.50%
0.00%
20
21
22
23
24
25
26
27
28
29
Output ( MHz)
Figure 2
Deviation vs Output frequency (40MHz to 130 MHz) at 25C for VDD = 3.3V
2.50%
2.00%
Dev ( % )
1.50%
1.00%
0.50%
0.00%
40
45
Figure 3
50
55
60
65
70
75
80
85
90
95
100
Output (MHz)
Note: Transition band is 30MHz to 34MHz for VDD=2.5V at 25ºC. Deviation in this band is 2.5% ± 4%.
Transition band is 30MHz to 39MHz for VDD=3.3V at 25ºC. Deviation in this band is 1.8% ± 30%.
Rev. 1 | Page 5 of 8 | www.onsemi.com
105
110
115
120
125
130
PCS3P7100A
Deviation vs Output frequency (35 MHz to 130 MHz) across temperature for VDD 2.5V ± 5%
3.00%
2.7V(-40C)
2.50%
2.5V(25C)
Dev ( % )
2.00%
2.37V(85C)
1.50%
1.00%
0.50%
0.00%
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
Output ( MHz)
Figure 4
Deviation vs Output frequency (20 MHz to 29 MHz) across temperature for VDD 3.3V ± 0.3V
2.50%
3.6V(-40C)
3.3V(25C)
2.00%
3.0V(85C)
Dev ( % )
1.50%
1.00%
0.50%
0.00%
20
21
22
23
24
25
26
27
28
29
Output ( MHz)
Figure 5
Deviation vs Output frequency (40MHz to 130 MHz) across temperature for VDD = 3.3V ± 0.3V
3.00%
2.50%
3.6V(-40C)
3.3V(25C)
Dev ( %)
2.00%
3.0V(85C)
1.50%
1.00%
0.50%
0.00%
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
Output ( MHz)
Note: Transition band is 30MHz to 34MHz for VDD=2.5V ± 5%, across -40ºC to +85C. Deviation in this band is 1.93% ± 37%.
Transition band is 30MHz to 39MHz for VDD=3.3V ± 0.3V, across -40ºC to +85C. Deviation in this band is 1.8% ± 45%.
Rev. 1 | Page 6 of 8 | www.onsemi.com
125
130
130
PCS3P7100A
Package Information
6L-TSOT23
Symbol
A
Dimensions
Inches
Millimeters
Min
Max
Min
Max
0.0295
0.035
0.75
0.90
A1
0.00
0.0039
0.00
0.10
A2
0.0275
0.0314
0.70
0.80
b
0.0157
0.0197
0.40
0.50
b1
0.0118
0.0157
0.30
0.40
c
0.0031
0.0078
0.08
0.20
D
0.1141
2.90 REF
E
0.1023
0.1181
2.60
3.00
E1
0.0590
0.0069
1.50
1.70
e
0.0374
0.95 BSC
e1
0.0748
1.90 BSC
L
0.0118
0.0236
0.30
0.60
L1
0.0236 REF
0.60 REF
L2
0.0098 BSC
0.25 BSC
R
0.0039
…..
0.10
…..
R1
0.0039
0.0098
0.10
0.25
θ
0°
8°
0°
8°
y
….
0.0039
….
0.10
Rev. 1 | Page 7 of 8 | www.onsemi.com
PCS3P7100A
Ordering Codes
Part Number
PCS3I7100AG-06JR
Marking
AA2
Package Type
Temperature
6L-TSOT23 (6L-TSOT26), TAPE & REEL,
Green
-40°C to +85°C
A “microdot” placed at the end of last row of marking or just below the last row toward the center of package indicates Pb-free.
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