View ABX0239QC_1205326.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's
FEATURES
* * Selectable 750kHz to 800MHz range. Low phase noise output (@ 10kHz frequency offset, -140dBc/Hz for 19.44MHz, -127dBc/Hz for 106.25MHz, -125dBc/Hz for 155.52MHz, 110dBc/Hz for 622.08MHz). CMOS (ABX0237), PECL (ABX0235 and ABX0238) or LVDS (ABX0239) output. 12 to 25MHz crystal input. No external load capacitor required. Output Enable selector. Selectable 1/16 to 32x frequency multiplier. 3.3V operation. Available in 16-Pin (TSSOP or 3x3mm QFN).
PIN CONFIGURATION (Top View)
VDD XIN XOUT SEL3^ SEL2^ OE GND GND 1 2 16 15 SEL0^ SEL1^ GND CLKC VDD CLKT GND GND
ABX023x
* * * * * * *
3 4 5 6 7 8
14 13 12 11 10 9
DESCRIPTION
The ABX0235 (PECL with inverted OE), ABX0237 (CMOS), ABX0238 (PECL), and ABX0239 (LVDS) are high performance and low phase noise XO IC chips. They provide phase noise performance as low as -125dBc at 1kHz offset (at 155MHz) and a typical RMS jitter of 4pS RMS ( at 155MHz ). They accept fundamental parallel resonant mode crystals from 12 to 25MHz.
XIN
SEL0^ / VDD*
10
VDD / GND*
XOUT SEL3^ SEL2^ OE
13 14 15 16
12
11
SEL1^
9
8 7 6 5
GND CLKC VDD CLKT
ABX023x
1 2 3 4
GND
GND
GND
BLOCK DIAGRAM
SEL OE
PLL (Phase Locked Loop)
^: *:
Internal pull-up On 3x3 package, ABX0235/38 do not have SEL0 available: Pin 10 is VDD, pin 11 is GND. However, ABX0237/39 have SEL0 (pin 10), and pin 11 is VDD. See pin assignment table for details.
OUTPUT ENABLE LOGICAL LEVELS
Part # ABX0238 ABX0235 ABX0237 ABX0239 OE 0 (Default) 1 0 1 (Default) State Output enabled Tri-state Tri-state Output enabled
Q Q
XIN XOUT
Oscillator Amplifier
PLL by-pass
OE input: Logical states defined by PECL levels for ABX0238 Logical states defined by CMOS levels for ABX0235/37/39
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1
GND
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's
FREQUENCY SELECTION TABLE
SEL3 SEL2 SEL1 SEL0 Selected Multiplier
0 0 0 1 1 1 1 1 1 1
0 1 1 0 0 0 1 1 1 1
1 1 1 0 1 1 0 0 1 1
1 0 1 1 0 1 0 1 0 1
Fin x 32 Fin / 8 Fin x 2 Fin / 2 Fin / 16 Fin x 4 Fin / 4 Fin x 8 Fin x 16 No multiplication
Note: SEL0 is not available (always "1") for ABX0235 and ABX0238 in 3x3mm package
PIN DESCRIPTIONS ABX0235 and ABX0238 (see next page of ABX0237/39)
Name
XIN XOUT OE GND CLKT CLKC SEL0 SEL1 SEL2 SEL3 VDD
TSSOP Pin number
2 3 6 7,8,9,10,14 11 13 16 15 5 4 1, 12
3x3mm QFN Pin number
12 13 16 1,2,3,4,8,11 5 7 Not available 9 15 14 6,10
Type
I I I P O O I I I I P
Description
Crystal input. See Crystal Specifications on page 3. Crystal output. See Crystal Specifications on page 3. Output enable pin (see OE logic state table on page 1). Ground. True output PECL Complementary output PECL. Multiplier selector pins. These pins have an internal pull-up that will default SEL to `1' when not connected to GND. Power Supply.
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's
PIN DESCRIPTIONS ABX0237/39 (see previous page of ABX0235/38)
Name
XIN XOUT OE GND CLKT CLKC SEL0 SEL1 SEL2 SEL3 VDD
TSSOP Pin number
2 3 6 7,8,9,10,14 11 13 16 15 5 4 1, 12
3x3mm QFN Pin number
12 13 16 1,2,3,4,8 5 7 10 9 15 14 6,11
Type
I I I P O O I I I I P
Description
Crystal input. See Crystal Specifications on page 3. Crystal output. See Crystal Specifications on page 3. Output enable pin (see OE logic state table on page 1). Ground. True output LVDS (ABX0239) (N/C for ABX0237) Complementary output LVDS (ABX0239) (CMOS out for ABX0237). Multiplier selector pins. These pins have an internal pull-up that will default SEL to `1' when not connected to GND. Power Supply.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings PARAMETERS
Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model
SYMBOL
VDD VI VO TS TA TJ
MIN.
-0.5 -0.5 -65 -40
MAX.
4.6 VDD+0.5 VDD+0.5 150 85 125 260 2
UNITS
V V V C C C C kV
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. * Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.
2. Crystal Specifications PARAMETERS
Crystal Resonator Frequency Crystal Loading Rating Recommended ESR
SYMBOL
FXIN CL (xtal) RE
CONDITIONS
Parallel Fundamental Mode AT cut
MIN.
12
TYP.
20
MAX.
25 30
UNITS
MHz pF
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's 3. General Electrical Specifications PARAMETERS
Supply Current, Dynamic (with Loaded Outputs) Operating Voltage Output Clock Duty Cycle Short Circuit Current
SYMBOL
IDD VDD
CONDITIONS
PECL/LVDS/CMOS Fout<24MHz 24MHzMIN.
TYP.
MAX.
25/25/15 65/45/30 100/80/40 3.63 55 55 55
UNITS
mA V % mA
2.97 @ 50% VDD (CMOS) @ 1.25V (LVDS) @ V DD - 1.3V (PECL) 45 45 45 50 50 50 50
4. Jitter Specifications PARAMETERS CONDITIONS
With capacitive decoupling between VDD and GND. Over 10,000 cycles.
FREQUENCY
19.44MHz 77.76MHz 155.52MHz 622.08MHz 19.44MHz 77.76MHz 155.52MHz 622.08MHz 155.52MHz 622.08MHz
MIN.
TYP.
2.2 3.5 4.3 5.0 17 25 27 35 2.6 2.5
MAX.
UNITS
Period jitter RMS 1
ps
Period jitter Peak-toPeak 1
With capacitive decoupling between VDD and GND. Over 10,000 cycles. Integrated 12 kHz to 20 MHz
ps
Integrated jitter RMS 2
4 4
ps
5. Phase Noise Specifications PARAMETERS
Phase Noise 2 relative to carrier (typical)
FREQUENCY
19.44MHz 77.76MHz 155.52MHz 622.08MHz
@10Hz
-80 -72 -65 -55
@100Hz
-108 -103 -95 -85
@1kHz
-132 -122 -120 -109
@10kHz
-142 -130 -125 -115
@100kHz
-150 -125 -121 -110
UNITS
dBc/Hz
6. CMOS Electrical Characteristics PARAMETERS
Output drive current Output Clock Rise/Fall Time
SYMBOL
IOH IOL
CONDITIONS
VOH= VDD-0.4V, VDD=3.3V VOL = 0.4V, VDD = 3.3V 0.3V ~ 3.0V with 15 pF load
MIN.
10 10
TYP.
MAX.
UNITS
mA mA ns
2.4
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's 7. LVDS Electrical Characteristics PARAMETERS
Output Differential Voltage VDD Magnitude Change Output High Voltage Output Low Voltage Offset Voltage Offset Magnitude Change Power-off Leakage Output Short Circuit Current
SYMBOL
VOD VOD VOH VOL VOS VOS IOXD IOSD
CONDITIONS
MIN.
247 -50
TYP.
355 1.4 1.1 1.2 3 1 -5.7
MAX.
454 50 1.6 1.375 25 10 -8
UNITS
mV mV V V V mV uA mA
RL = 100 (see figure)
0.9 1.125 0
Vout = VDD or GND VDD = 0V
8. LVDS Switching Characteristics PARAMETERS
Differential Clock Rise Time Differential Clock Fall Time
LVDS Levels Test Circuit
OUT
SYMBOL
tr tf
CONDITIONS
RL = 100 CL = 10 pF (see figure)
MIN.
0.2 0.2
TYP.
0.7 0.7
MAX.
1.0 1.0
UNITS
ns ns
LVDS Switching Test Circuit
OUT
50
CL = 10pF
VOD
VOS
VDIFF
RL = 100
50 CL = 10pF OUT OUT
LVDS Transistion Time Waveform
OUT 0V (Differential) OUT
80% VDIFF 20% 0V
80%
20%
tR
tF
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 5
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's 9. PECL Electrical Characteristics PARAMETERS
Output High Voltage Output Low Voltage
SYMBOL
VOH VOL
CONDITIONS
RL = 50 to (VDD - 2V) (see figure)
MIN.
VDD - 1.025
MAX.
VDD - 1.620
UNITS
V V
10. PECL Switching Characteristics PARAMETERS
Clock Rise Time Clock Fall Time Duty Cycle
SYMBOL
tr tf
CONDITIONS
0.8V ~ 2.0V 2.0V ~ 0.8V Measured @ 1.4V
MIN.
TYP.
MAX.
1.5 1.5 60
UNITS
ns ns %
40
50
PECL Levels Test Circuit
OUT VDD OUT
PECL Output Skew
50
2.0V 50%
50 OUT OUT tSKEW
PECL Transistion Time Waveform
DUTY CYCLE
45 - 55%
55 - 45%
OUT 80% 50% 20% OUT tR tF
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 6
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's PACKAGE INFORMATION
16 PIN TSSOP ( mm )
Symbol A A1 B C D E H L e Min. Max. 1.20 0.05 0.15 0.19 0.30 0.09 0.20 4.90 5.10 4.30 4.50 6.40 BSC 0.45 0.75 0.65 BSC E H
D
A A1 e B C L
3x3mm QFN
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 7
ABX0235/37/38/39
750kHz - 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC's
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
ABX023x
PART NUMBER
OC
TEMPERATURE C=COMMERCIAL I=INDUSTRAL PACKAGE TYPE O=TSSOP Q=QFN
Order Number ABX0235OC-T ABX0235OC ABX0235QC-T ABX0235QC ABX0237OC-T ABX0237OC ABX0237QC-T ABX0237QC ABX0238OC-T ABX0238OC ABX0238QC-T ABX0238QC ABX0239OC-T ABX0239OC ABX0239QC-T ABX0239QC
Marking ABX0235OC ABX0235OC ABX0235QC ABX0235QC ABX0237OC ABX0237OC ABX0237QC ABX0237QC ABX0238OC ABX0238OC ABX0238QC ABX0238QC ABX0239OC ABX0239OC ABX0239QC ABX0239QC
Package Option TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube TSSOP - Tape and Reel TSSOP - Tube QFN - Tape and Reel QFN - Tube
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 03/21/05 Page 8

▲Up To Search▲

Price & Availability of ABX0239QC

	To Download ABX0239QC Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .