ABRACON ABPX1130

Preliminary
ABPX1130
Advanced Programmable Clock
FEATURES
•
•
•
•
•
•
Advanced programmable PLL design
Very low Jitter and Phase Noise (< 40ps Pk-Pk typical)
Output frequency up to 375MHz CMOS.
Supports differential CMOS output to produce PECL, LVDS XIN/FIN
inputs.
GND
Crystal inputs:
CLK0
o Fundamental crystal: 10MHz-30MHz
CLK1
o 3 RD overtone crystal: Up to 75MHz
o Reference input: Up to 200MHz
Accepts <1.0V reference signal input voltage
One programmable I/O pin can be configured as
Output Enable (OE), or Frequency Selection input
(FSEL), or Reference clock.
Single 3.3V ± 10% power supply
Operating temperature range from -40°C to 85°C
Available in 8-pin MSOP/SOIC, 6-pin SOT Green/RoHS compliant
packages.
1
2
3
4
ABPX1130
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•
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PIN CONFIGURATION
8
XOUT
7
CLK2, OE, FSEL
6
DNC
5
VDD
SOP-8
MSOP-8
DESCRIPTION
The ABPX1130 is a low-cost general purpose frequency synthesizer and a member of Abracon’s Advanced
Programmable Clock family. Abracon’s ABPX1130 product family can generate any output frequency up to 375
MHz from fundamental crystal input between 10 MHz - 30 MHz, or a 3rd overtone crystal of up to 75Mhz. The
ABPX1130 produces differential CMOS outputs to support PECL, LVDS, and CMOS inputs.
BLOCK DIAGRAM
XIN/FIN
XOUT
Xtal
OSC
FRef
R- counter
Phase
Detector
Charge
Pump
Loop
Filter
M -counter
( 6 -bit)
OE
CLoad
Programming
Logic
FSEL
FVCO = F Ref. * (2 * M /R)
VCO
P-counter
(5-bit)
FOut = FVCO / (2 * P)
Programmable Function
/1, /2
CLK[0:1]
CLK2
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 1
Preliminary
ABPX1130
Advanced Programmable Clock
KEY PROGRAMMING PARAMETERS
CLK[ 0:2 ]
Output Frequency
Fout = FIN * M / (R * P)
where M= 6 bit
R= 1
P= 5 bit
1. CLK[0:1]= VCO / 2 * P
2. CLK[2]= FIN or FIN/2
Output Drive
Strength
Std: 10mA
(default)
High: 24mA
Crystal
Load
Programmable
Input/Output (pin #7)
# of
Register
Banks
+/- 200ppm One output pin can be
tuning.
configured as
1. CLK2 = FIN or FIN/2
2. FSEL - input
3. OE - input
2
Charge-Pump
Current
4 levels of pump
current setting
PIN DESCRIPTION
Name
Pin #
(M)SOP-8
Type
Description
XIN/FIN
1
I
Crystal or Reference input pin
GND
2
P
GND connection
CLK[0:1]
3,4
O
Programmable Clock Output [note:CLK0=~CLK1]
VDD
5
P
VDD connection
DNC
6
-
Do No Connect
This programmable I/O pin can be configured as CLK2
(FIN or FIN/2) output, or OE input, or Frequency
Selection (FSEL) input pin. This pin has an internal 60KΩ
pull up resistor.
CLK2, OE, FSEL
7
B
State
0
1 (default)
XOUT
8
O
OE
FSEL
Tristate
Select Bank ’0’
ROM
CLK[0:1]
Normal
mode
Select Bank ‘1’
ROM
Crystal output pin
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 2
Preliminary
ABPX1130
Advanced Programmable Clock
ELECTRICAL SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
SYMBOL
MIN.
MAX.
UNITS
V DD
- 0.5
4.6
V
Input Voltage Range
VI
- 0.5
V DD + 0.5
V
Output Voltage Range
VO
- 0.5
V DD + 0.5
V
Supply Voltage Range
Data Retention @ 85º C
10
Years
260
°C
-65
150
°C
-40
+85
°C
Soldering Temperature
Storage Temperature
TS
Ambient Operating Temperature
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device
and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above
the operational limits noted in this specification is not implied.
AC SPECIFICATIONS
PARAMETERS
MAX.
UNITS
30
MHz
3 rd Overtone Crystal
75
MHz
Settling Time
At power-up (after VDD increases over
1.62V)
10
ms
VDD Sensitivity
Frequency vs. VDD+/-10%
2
ppm
Crystal Input Frequency
Output Rise Time
Output Fall Time
CONDITIONS
Fundamental Crystal
MIN.
TYP.
10
-2
15pF Load, 10/90%VDD, Standard drive
2.5
3.5
ns
15pF Load, 10/90%VDD, High drive
1.0
1.5
ns
15pF Load, 90/10%VDD, Standard drive
2.5
3.5
ns
15pF Load, 90/10%VDD, High drive
1.0
1.5
ns
50
55
%
500
ps
Duty Cycle
At VDD/2
Max. output skew between
same frequency clocks
Equal loading (15 pF). Equal frequency
& drive strength
Period Jitter, peak-to-peak*
(measured from 10,000
samples)
With capacitive decoupling between VDD
and GND. Operating only one output.
45
40
ps
* Note: Jitter performance depends on the programming parameters.
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 3
Preliminary
ABPX1130
Advanced Programmable Clock
DC SPECIFICATIONS
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
15
mA
3.63
V
0.4
V
Supply Current, Dynamic,
with Loaded Outputs
I DD
Operating Voltage
V DD
Output Low Voltage
V OL
I OL = +4mA (Standard drive)
Output High Voltage
V OH
I OH = -4mA (Standard drive)
I OSD
V OL = 0.4V, V OH = 2.4V (Standard
drive)
10
mA
I OHD
V OL = 0.4V, V OH = 2.4V (High Drive)
24
mA
±50
mA
Output Current
Short-circuit Current
At 10MHz, load=15pF
2.25
V DD – 0.4
IS
V
CRYSTAL SPECIFICATIONS
PARAMETERS
SYMBOL
MIN.
Fundamental Crystal Resonator Frequency
F XIN
10
3rd Overtone Crystal Resonator Frequency
F XIN
Crystal Loading Rating
(The IC can be programmed for any value in this range.)
C L (xtal)
TYP.
5
Maximum Sustainable Drive Level
Operating Drive Level
MAX.
UNITS
30
MHz
75
MHz
20
pF
500
µW
µW
100
Crystal Shunt Capacitance
C0
6
pF
Effective Series Resistance, Fundamental, 10-30MHz
RS
30
Ω
Effective Series Resistance, 3 rd Overtone, 30-50MHz
[CO< 4pF, C L =5pF/8pF]
ESR
100/70
Ω
Effective Series Resistance, 3 rd Overtone, 50-65MHz,
[CO< 4pF, C L =5pF/8pF]
ESR
60/40
Ω
Effective Series Resistance, 3 rd Overtone, 65-75MHz
[CO< 4pF, C L =5pF/8pF
ESR
45/30
Ω
Note: A detailed crystal specification document is also available for this part
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 4
Preliminary
ABPX1130
Advanced Programmable Clock
Figure 1 below describes how to terminate the differential CMOS outputs of Abracon’s ABPX1130 Programmable QTC clock for
use with PECL or LVDS inputs.
The unique feature of differential CMOS outputs allows great flexibility for board designers. By standardizing on one termination
scheme you can use the ABPX1130 for all your LVDS and PECL clock requirements up to 375MHz.
+3.3V
CMOS Output
R1
50Ω line
R2
Input
R3
Complementary
CMOS Output
R1
50Ω line
3.3V
0V
R3
R2
+3.3V
Complementary
Input
PECL LVDS
2.35V 1.40V
1.59V 1.10V
Component selection
For PECL input
For LVDS input
Notes:
Place R1 as close to the CMOS outputs as
possible.
R1 = 130Ω
R2 = 82Ω
R3 = 130Ω
Place R2 and R3 as close to the PECL/LVDS
inputs as possible.
R1 = 360Ω
R2 = 82Ω
R3 = 130Ω
Figure 1
The above layout allows the ABPX1130 to drive either a PECL or LVDS input by simply changing the value of R1.
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 5
Preliminary
ABPX1130
Advanced Programmable Clock
PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT)
MSOP 8L
Symbol
A
A1
A2
B
C
D
E
H
L
e
Dimension in MM
Min.
Max.
--1.10
0.05
0.15
0.81
0.91
0.25
0.40
0.13
0.23
2.90
3.10
2.90
3.10
4.90 BSC
0.445
0.648
0.65 BSC
E
H
D
A2 A
A1
C
e
L
b
SOP 8L
Symbol
A
A1
A2
B
C
D
E
H
L
e
Dimension in MM
Min.
Max.
1.35
1.75
0.10
0.25
1.25
1.50
0.33
0.53
0.19
0.27
4.80
5.00
3.80
4.00
5.80
6.20
0.40
0.89
1.27 BSC
E
H
D
A2 A
A1
C
e
b
L
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 6
Preliminary
ABPX1130
Advanced Programmable Clock
ORDERING INFORMATION
For part ordering, please contact our Sales Department:
30332 Esperanza., Rancho Santa Margarita, Ca 92688
Ph: 949-546-8000 Fax: 949-546-8001
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
APBX1130-XXX X X-T
PART NUMBER
3 DIGIT ID Code *
NONE= TUBE
T=TAPE and REEL
PACKAGE TYPE
S=SOIC
M=MSOP
TEMPERATURE
C=COMMERCIAL
I = INDUSTRIAL
* PhaseLink will assign a unique 3-digit ID code for each approved programmed part number.
* PhaseLink offers Green Package Only for this product family.
Part / Order Number
ABPX1130-XXXSC
ABPX1130-XXXSC-T
ABPX1130-XXXMC
ABPX1130-XXXMC-T
Marking
A3XXX
A3XXX
A3XXX
A3XXX
Package Option
8-Pin SOIC (Tube)
8-Pin SOIC (Tape and Reel)
8-Pin MSOP (Tube)
8-Pin MSOP (Tape and Reel)
Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Abracon is believed to be accurate and reliable. However, Abracon makes no guarantee or warranty concerning the accuracy of said
information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY: Abracon’s products are not authorized for use as critical components in life support devices or systems without the express
written approval of the President of Abracon Corporation.
30332 Esperanza, Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 7