P1727DG-08-SR [PULSECORE]
PLL Based Clock Driver, 1727 Series, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, 0.150 INCH, GREEN, SOIC-8;
| 型号： | P1727DG-08-SR |
| 厂家： | 
PulseCore Semiconductor |
| 描述： | PLL Based Clock Driver, 1727 Series, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, 0.150 INCH, GREEN, SOIC-8 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总9页 (文件大小：327K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
P1727
Low Power Notebook LCD
Panel EMI Reduction IC
Features
FCC approved method of EMI attenuation
wide reduction of EMI of down stream (clock and data
dependent signals). The P1727 allows significant
system cost savings by reducing the number of circuit
board layers and shielding that are traditionally required
to pass EMI regulations.
Generates a low EMI spread spectrum of the input
clock frequency
Optimized for frequency range: P1727X: 20MHz to
40MHz
The P1727 modulates the output of a single PLL in
order to “spread” the bandwidth of a synthesized clock,
thereby decreasing the peak amplitudes of its
harmonics. This result in significantly lower system EMI
compared to the typical narrow band signal produced
by oscillators and most clock generators. Lowering EMI
by increasing a signal’s bandwidth is called spread
spectrum clock generation.
Internal loop filter minimizes external components
and board space
8 different frequency deviations ranging from +/-
0.625% to –3.50%
Low inherent Cycle-to-cycle jitter
3.3V Operating Voltage
Supports notebook VGA and other LCD timing
controller applications
The P1727 uses the most efficient and optimized
modulation profile approved by the FCC and is
implemented by using a proprietary all-digital method.
Available in 8 pin SOIC and TSSOP
Qualified for Industrial Temp Spec. (-40°C to
+85°C)
Applications
The P1727 is targeted towards notebook LCD displays,
other displays using an LVDS interface, PC peripheral
devices and embedded systems.
Product Description
The P1727 is a versatile spread spectrum frequency
modulator designed specifically for a wide range of
clock frequencies. The P1727 reduces electromagnetic
interference (EMI) at the clock source, allowing system
Block Diagram
VDD
PDB
PLL
Modulation
CLKIN
Frequency
Divider
Phase
Detector
ModOUT
REFOUT
Loop
Filter
VCO
Output
Divider
Feedback
Divider
VSS
©2010 SCILLC. All rights reserved.
Publication Order Number:
JANUARY 2010 – Rev. 1
P1727/D
P1727
Pin Configuration
PDB
NC
1
2
3
4
8
7
6
5
VDD
P1727
NC
VSS
ModOUT
REFOUT
Table 1 – Power Down Selection
PDB
Spread Spectrum
ModOUT
Disabled
Normal
PLL
Mode
Power Down
Normal
0
1
N/A
ON
Disabled
Normal
Table 2 – Frequency Deviation Selection
P/ N
Deviation
-1.25%
P/N
Deviation
P1727A
P1727B
P1727C
P1727D
P1727E
P1727F
P1727G
P1727H
+/-0.625%
+/-0.875%
+/-1.25%
+/-1.75%
-1.75%
-2.50%
-3.50%
Pin Description
Pin#
Pin Name
Type
Description
External reference frequency input. Connect to externally generated
reference signal.
1
CLKIN
I
2
3
4
5
6
7
8
VDD
VSS
P
P
Connect to +3.3V.
Ground Connection. Connect to system ground.
Spread Spectrum Clock output.
Reference output.
ModOUT
REFOUT
NC
O
O
No connect.
NC
No connect.
PDB
I
Powerdown Pin. Pull low to disable spread spectrum clock output.
Rev. 1 | Page 2 of 9 | www.onsemi.com
P1727
Schematic for notebook VGA application
27MHz Pixel Clock input
Tie low to enable
Powerdown mode.
PDB
NC
1
8
7
6
5
VDD
VDD
VSS
2
3
P1727
0.1 µF
NC
REFOU
ModOut Clock
4
ModOUT
Reference Clock O/P
Absolute Maximum Ratings
Symbol
Parameter
Rating
-0.5 to +7
-65 to +125
260
Unit
V
VDD, VIN
TSTG
Ts
Voltage on any pin with respect to Ground
Storage temperature
°C
Max. Soldering Temperature (10 sec)
Junction Temperature
°C
TJ
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.
Rev. 1 | Page 3 of 9 | www.onsemi.com
P1727
DC Electrical Characteristics
Symbol
Parameter
Min
VSS – 0.3
2.0
Typ
Max
Unit
VIL
VIH
IIL
Input Low voltage
Input High voltage
Input Low current
Input High current
Output Low current
Output High current
0.8
V
VDD +0.3
-35
V
µA
µA
V
IIH
35
VOL
VOH
IDD
VDD = 3.3V, IOL = 20mA
VDD = 3.3V, IOH = 20mA
0.4
2.5
3.0
0
V
Static Supply Current (CLKIN, PDB pulled Low)
Dynamic Supply Current (No Load)
Operating Voltage
2
mA
mA
V
ICC
14
3.3
0.18
50
18
3.6
VDD
tON
ZOUT
TA
Power up time (first locked clock cycle after power up)
Clock Output impedance
mS
Ω
Operating temperature
70
°C
AC Electrical Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
fIN
Input Frequency:
Output Frequency:
Output Rise time
Output Fall time
P1727X
20
20
40
40
MHz
MHz
nS
fOUT
P1727X
1
tLH
Measured from 0.8V to 2.0V
Measured from 2.0V to 0.8V
0.7
0.6
0.9
0.8
225
50
1.1
1.0
325
55
1
tHL
nS
tJC
tD
Jitter (Cycle-to-cycle)
Output Duty cycle
pS
45
%
Note: 1. tLH and tHL are measured with a capacitive load of 15pF.
Rev. 1 | Page 4 of 9 | www.onsemi.com
P1727
Package Information
8-lead (150-mil) SOIC Package
H
E
D
A2
A
C
e
A1
L
B
Dimensions
Millimeters
Symbol
Inches
Min
Max
0.010
0.069
0.059
0.020
0.010
Min
0.10
1.35
1.25
0.31
0.18
Max
0.25
1.75
1.50
0.51
0.25
A1
A
0.004
0.053
0.049
0.012
0.007
A2
B
C
D
E
0.193 BSC
0.154 BSC
0.050 BSC
0.236 BSC
4.90 BSC
3.91 BSC
1.27 BSC
6.00 BSC
e
H
L
0.016
0°
0.050
8°
0.41
0°
1.27
8°
θ
Rev. 1 | Page 5 of 9 | www.onsemi.com
P1727
8-lead Thin Shrunk Small Outline Package (4.40-MM Body)
H
E
D
A2
A
C
e
A1
L
B
Dimensions
Symbol
Inches
Millimeters
Min
Max
Min
Max
A
A1
A2
B
0.043
0.006
0.037
0.012
0.008
0.122
0.177
1.10
0.002
0.033
0.008
0.004
0.114
0.169
0.05
0.85
0.19
0.09
2.90
4.30
0.15
0.95
0.30
0.20
3.10
4.50
c
D
E
e
0.026 BSC
0.252 BSC
0.65 BSC
6.40 BSC
H
L
0.020
0°
0.028
8°
0.50
0°
0.70
8°
θ
Rev. 1 | Page 6 of 9 | www.onsemi.com
P1727
Ordering Information
Part number
Marking
P1727AG
P1727AG
P1727AG
P1727AG
P1727BG
P1727BG
P1727BG
P1727BG
P1727CG
P1727CG
P1727CG
P1727CG
P1727DG
P1727DG
P1727DG
P1727DG
P1727EG
P1727EG
P1727EG
P1727EG
P1727FG
P1727FG
P1727FG
P1727FG
P1727GG
P1727GG
P1727GG
P1727GG
P1727HG
P1727HG
P1727HG
P1727HG
Package Configuration
8 PIN SOIC, TUBE, Green
Temperature Range
P1727AG-08ST
P1727AG-08SR
P1727AG-08TT
P1727AG-08TR
P1727BG-08ST
P1727BG-08SR
P1727BG-08TT
P1727BG-08TR
P1727CG-08ST
P1727CG-08SR
P1727CG-08TT
P1727CG-08TR
P1727DG-08ST
P1727DG-08SR
P1727DG-08TT
P1727DG-08TR
P1727EG-08ST
P1727EG-08SR
P1727EG-08TT
P1727EG-08TR
P1727FG-08ST
P1727FG-08SR
P1727FG-08TT
P1727FG-08TR
P1727GG-08ST
P1727GG-08SR
P1727GG-08TT
P1727GG-08TR
P1727HG-08ST
P1727HG-08SR
P1727HG-08TT
P1727HG-08TR
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
8 PIN SOIC, TUBE, Green
8 PIN SOIC, TAPE & REEL, Green
8 PIN TSSOP, TUBE, Green
8 PIN TSSOP, TAPE & REEL, Green
Rev. 1 | Page 7 of 9 | www.onsemi.com
P1727
Device Ordering Information
P 1 7 2 7 X G 0 8 - X X
SR - SOIC, T/R
TT – TSSOP, TUBE
TR - TSSOP, T/R
ST – SOIC, TUBE
Pin Count
F = LEAD FREE AND RoHS COMPLIANT PART
G = GREEN PACKAGE, LEAD FREE, and RoHS
Deviation (%) and Spread option Identifier
DEVICE NUMBER
Flow:
P = Commercial Temperature Range (0°C to 70°C)
I = Industrial Temperature Range (-40°C to 85°C)
Licensed under US patent #5,488,627, #6,646,463 and #5,631,920.
Rev. 1 | Page 8 of 9 | www.onsemi.com
P1727
Note: This product utilizes US Patent #6,646,463 Impedance Emulator Patent issued to PulseCore Semiconductor, dated 11-11-2003.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death
may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and
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was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. U.S Patent Pending; Timing-Safe
and Active Bead are trademarks of PulseCore Semiconductor, a wholly owned subsidiary of ON Semiconductor. This literature is subject to all applicable
copyright laws and is not for resale in any manner.
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