ETC SSDCP1108AF

SSDCP1108AF
Spectrum Device
General Purpose Peak EMI reduction IC
General Features
选
择
deviations depending upon the value of an external resistor
connected between SSEXTR and GND. Charge Pump (CP)
control selects one of the two different Charge Pump
current settings.
Analog Deviation Selection
Spread Spectrum Enable/Disable
Supply Voltage: 2.5V±0.2V
3.3V±0.3V
•
8pin TDFN(2X2) COL Packages
•
Commercial temperature range
佳
•
•
•
SSDCP1108AF has an SSEXTR pin to select different
最
•
function.
SSDCP1108AF operates from a 3.3V/2.5V supply, and is
available in an 8 pin TDFN(2X2) COL
的
•
modulated clock output. SSDCP1108AF has a SSON pin for
enabling and disabling Timing-Safe™ Spread Spectrum
1x, LVCMOS Peak EMI Reduction
Incorporates the latest Timing-Safe™ technology
which allows the spread of analog video signal
Input frequency:
10MHz - 35MHz @ 2.5V
10MHz - 40MHz @ 3.3V
Output frequency :
10MHz - 35MHz @ 2.5V
10MHz - 40MHz @ 3.3V
packages, over Commercial temperature range.
案
•
•
DC coupled to XIN/CLKIN) and locks on to it delivering a 1x
C方
Application
Functional Description
• SSDCP1108AF is targeted for consumer electronics
EM
SSDCP1108AF is a versatile, 3.3V/2.5V Peak EMI reduction
application such as MFP, STB, DSC, MID,HDMI,LCD panel
Camcorder,and other timing sensitive analog video imaging applications
IC. SSDCP1108AF accepts an input clock either from a
• Applications of HDMI, RJ45 port has good compatibility
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—
fundamental Crystal or from an external reference (AC or
SSON
CP
VDD
韬
略
科
Block Diagram
XIN/CLKIN
XOUT
Crystal
Oscillator
GND
ModOUT
PLL
SSEXTR
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SSDCP1108AF
Spectrum Device
Pin Configuration
XIN / CLKIN 1
8
VDD
7
SSEXTR
3
6
CP
GND 4
5
ModOUT
XOUT 2
SSDCP1108A
佳
选
择
SSDCP1108AF
SSON
最
Pin Description
Description
Pin Name
Pin Type
1
XIN / CLKIN
I
Crystal connection or External reference clock input.
2
XOUT
O
Crystal connection. If using an external reference, this pin should be left open.
3
SSON
I
Spread Spectrum ON/OFF. Spread Spectrum function enabled when HIGH, disabled
when LOW. Has an internal pull-up resistor inside.
4
GND
P
Ground
5
ModOUT
O
6
CP
I
Modulated clock output
Charge Pump current Select. When LOW selects Low CP current. Selects High CP
current when pulled HIGH. Has an internal pull-up resistor inside.
7
SSEXTR
I
Analog Deviation Selection through external resistor to GND.
8
VDD
P
2.5V / 3.3V supply Voltage.
案
C方
EM
—
技
Frequency (MHz)
韬
2.5
略
VDD (V)
科
Frequency Selection table
的
Pin #
3.3
15-35
15-40
Operating Conditions
Parameter
VDD
Description
Supply Voltage
Min
Max
Unit
2.3
3.6
V
0
TA
Operating Temperature (Ambient Temperature)
+70
°C
CL
Load Capacitance
10
pF
CIN
Input Capacitance
7
pF
2/9
SSDCP1108AF
Spectrum Device
Absolute Maximum Rating
Symbol
Rating
Unit
Voltage on any input pin with respect to Ground
-0.5 to +4.6
V
Storage temperature
-65 to +125
°C
°C
°C
Parameter
VDD, V IN
TSTG
Max. Soldering Temperature (10 sec)
TJ
Junction Temperature
150
TDV
Static Discharge Voltage (As per JEDEC STD22- A114-B)
择
Ts
260
2
KV
佳
选
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.
Parameter
Description
的
Test Conditions
Input LOW Voltage
VIH
Input HIGH Voltage
Min
Typ
Max
Unit
2.3
2.5
2.7
V
0.7
V
1.7
V
C方
VIL
案
Supply Voltage
VDD
最
DC Electrical Characteristics for 2.5V
Input LOW Current
VIN = 0V
25
µA
Input HIGH Current
VIN = VDD
25
µA
VOL
Output LOW Voltage
IOL = 8mA
0.6
V
VOH
Output HIGH Voltage
IOH = -8mA
ICC
Static Supply Current
XIN / CLKIN pulled low
EM
IIL
IIH
V
—
1.8
Dynamic Supply Current
Zo
Output Impedance
Unloaded Output
技
IDD
50
µA
12
mA
Ω
科
35
略
Switching Characteristics for 2.5V
Max
Unit
35
MHz
55
%
Measured between 20% to 80%
2.2
nS
Measured between 80% to 20%
2
nS
Test Conditions
韬
Parameter
Input Frequency* /
ModoUT
Duty Cycle
1, 2
Output Rise Time
Output Fall Time
1,2
Cycle-to-Cycle Jitter
PLL Lock Time
2
2
Typ
10
Measured at V DD /2
1, 2
Min
45
Unloaded output with SSEXTR OPEN @ 27MHz
Stable power supply, valid clock presented on
XIN / CLKIN
Note: 1. All parameters are specified with 10pF loaded outputs.
2. Parameter is guaranteed by design and characterization. Not 100% tested in production
* Functionality with Crystal is guaranteed by design and characterization. Not 100% tested in production.
3/9
50
±175
pS
3
mS
SSDCP1108AF
Spectrum Device
DC Electrical Characteristics for 3.3V
Parameter
VDD
Description
Test Conditions
Supply Voltage
VIL
Input LOW Voltage
VIH
Input HIGH Voltage
IIL
Input LOW Current
VIN = 0V
IIH
Input HIGH Current
VIN = VDD
Output LOW Voltage
IOL = 8mA
XIN / CLKIN pulled low
IDD
Dynamic Supply Current
Unloaded Output
Zo
Output Impedance
3.6
V
0.8
V
25
µA
25
µA
0.4
V
50
µA
16
mA
V
Min
Typ
10
45
50
—
Measured at V DD /2
3, 4
Measured between 20% to 80%
3, 4
技
Measured between 80% to 20%
4
科
Unloaded output with SSEXTR OPEN @ 27MHz
Stable power supply, valid clock presented on
PLL Lock Time 4
Ω
30
的
EM
Input Frequency* /
ModOUT
V
案
Test Conditions
Parameter
Output Fall Time
3.3
2.4
C方
Switching Characteristics for 3.3V
Cycle-to-Cycle Jitter
3.0
择
IOH = -8mA
Static Supply Current
Output Rise Time
Unit
最
Output HIGH Voltage
ICC
3, 4
Max
2.0
VOH
Duty Cycle
Typ
佳
选
VOL
Min
略
XIN / CLKIN
韬
Note: 3. All parameters are specified with10pF loaded outputs.
4. Parameter is guaranteed by design and characterization. Not 100% tested in production.
* Functionality with Crystal is guaranteed by design and characterization. Not 100% tested in production.
4/9
Max
Unit
40
MHz
55
%
1.8
nS
1.6
±150
nS
pS
3
mS
SSDCP1108AF
Spectrum Device
Typical Crystal Specifications
Fundamental AT cut parallel resonant crystal
27MHz
Frequency tolerance
± 50 ppm or better at 25°C
Operating temperature range
0°C to +70°C
Storage temperature
-40°C to +85°C
Load capacitance(CP)
18pF
Shunt capacitance
7pF maximum
ESR
25 Ω
佳
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择
Nominal frequency
Note: C L is the Load Capacitance and Rx is used to prevent oscillations at overtone frequency of the Fundamental frequency.
最
Typical Crystal Interface Circuit
SSDCP1108A
C方
案
的
R
XIN/CLKIN
EM
Crystal
CL
XOUT
Rx
—
CL
科
技
CL = 2*(CP – CS),
Where CP = Load capacitance of crystal from crystal vendor datasheet
CS = Stray capacitance due to CIN, PCB, Trace etc.
略
Switching Waveforms
韬
Duty Cycle Timing
t1
t2
VDD/2
VDD/2
OUTPUT
Output Rise/Fall Time
80%
80%
20%
20%
OUTPUT
t3
t4
5/9
VDD/2
SSDCP1108AF
Spectrum Device
Application Schematic
Noise Reduction Filter
VDD
R
SSDCP1108AF
1 XIN/CLKIN
CL
C
VDD 8
择
CL is the load capacitance
for proper XTAL operation
External Deviation Control
XOUT
3
SSON
4
GND
SSEXTR
CP
7
VDD
R1
佳
选
2
VDD
SSEXTR can be Pulled HIGH
to turn OFF Deviation
6
SSON
Control
最
CP Control
的
ModOUT 5
C方
案
Note: SSON (Pin#3) CP (Pin#6): Connect to VDD or GND
Refer to Pin Description table for Functionality details
Note: For AC Coupled Interface refer to Application Brief: CT100801
—
EM
Deviation Vs SSEXTR resistance Charts at 27MHz
Deviation Vs SSEXTR Resistance @ 27MHz
CP=1
技
2.5
科
MR=1
韬
略
Deviation(±%)
2.0
1.5
1.0
0.5
0.0
0
50
100 150 200 250 300 350 400 450 500 550 600 650
Resistance(KΩ)
6/9
Analog Deviation Control
SSDCP1108AF
Spectrum Device
Deviation Vs SSEXTR Resistance @ 27MHz
2.5
CP=0
MR=0
择
1.5
1.0
佳
选
Deviation(±%)
2.0
0.5
0
50
100
150
200
韬
略
科
技
—
EM
C方
案
的
Resistance(KΩ)
7/9
250
最
0.0
300
SSDCP1108AF
Spectrum Device
韬
略
科
技
—
EM
C方
案
的
最
佳
选
择
TDFN COL 2x2 8L package Outline drawing
Dimensions
Symbol
A
A3
b
D
Inches
Max
Min
0.027
0.0315
Millimeters
Max
Min
0.70
0.008 BSC
0.008
0.012
0.80
0.203 BSC
0.20
0.079 BSC
0.30
2.00 BSC
E
0.078 BSC
2.00 BSC
e
0.020 BSC
0.50 BSC
L
0.020
0.024
8/9
0.50
0.60
SSDCP1108AF
Spectrum Device
Ordering Code
Marking
DA
SSDCP1108AF-08-CR
Temperature
Package
8- pin 2-mm TDFN COL - TAPE & REEL, Green
Device Ordering Information
佳
F - 08 - C R
最
SSD C P 1 108A
0 °C to +70 °C
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择
Part Number
EM
C方
案
的
R = Tape & Reel, T = Tube or Tray
O = TSOT23
S = SOIC
T = TSSOP
A = SSOP
V = TVSOP
B = BGA
Q = QFN
U = MSOP
E = TQFP
L = LQFP
U = MSOP
P = PDIP
D = QSOP
X = SC-70
J=TSOT26
C=TDFN (2X2) COL
DEVICE PIN COUNT
技
—
F = LEAD FREE AND RoHS COMPLIANT PART
G = GREEN PACKAGE, LEAD FREE, and RoHS
PART NUMBER
科
I= Industrial
(-40 °C to +85 °C )
韬
略
A = Clock Generator
B = Non PLL based
C = EMI Reduction
D = DDR support products
E = STD Zero Delay Buffer
P or n/c = Commercial
(0 °C to +70 )°C
F = Power Management
G = Power Management
H = Power Management
I = Hi Performance
J = Reserved
Spread Spectrum Device CO.,LTD
Copyright All rights reserved by Spread Spectrum Device
Part Number:SSDCP1108AF
EMAIL:[email protected]
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ande 13510990352