P letronics, Inc.
19013 36 Ave. West PO Box 2607 Lynnwood, Washington 98036 U.S.A. T: 1-425-776-1880 F: 1-425-776-2760 E: ple-sales@pletronics.com www.pletronics.com
th
Effective January 1, 2008 PE11xxBY PE33xxBY PE37xxBY Devices are OBSOLETE
This has been discontinued because: • the difficulty of the older design to assemble well in the newer RoHS compliant high temperature reflow processes. • the cover assembly was not meeting some of the cleaning and assembly needs of the newer processes. • the components needed to make these parts are no longer available. This requirement is best met by using a PE99xxDV oscillator and a -3.3V regulator and operating the device from the 5.0V supply.
Pl tronics., Inc.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
Differential PECL Series
Differential PECL Output, Some with Enable/ Disable Function Available in 9 Different Package/Configurations, See Next Pages
Standard Specifications Overall Frequency Stability Operating Temperature Range Storage Temperature Range Supply Voltage (Vcc) Supply Current (Icc) Output High Level ± 50 PPM, ± 25 PPM, ± 20 PPM over Operating Temperature Range 0 to +80°C is standard, but can be extended to - 40 to +85°C - 55 to +125°C 3.3 volts ± 5% standard, but 5.0 volts or 2.5 volts also available. See Test Cirucit 5. < 250 MHz = 90 mA maximum, 250 MHz and above = 100 mA maximum 2.275 V minimum referenced to Ground, Vcc = 3.300V, 0.975 V minimum referenced to termination voltage, - 1.025 V minimum referenced to Vcc 1.680 V maximum referenced to Ground, Vcc = 3.300V, 0.380 V maximum referenced to termination voltage, - 1.620 V maximum referenced to Vcc 45/55% referenced to 50% of amplitude 1.0 nS maximum when Vth is 10% and 90% of waveform 1 pS RMS maximum measured from 12 kHz to 20 MHz from Fnominal 50 kohm minimum to Vcc 0.3 Vcc maximum referenced to Ground 0.7 Vcc minumum referenced to Ground
Output Low Level
Output Symmetry Output Rise & Fall (Tr & Tf) Jitter E/D Internal Pullup V disable V enable
PE7745D only Output Enable / Disable High Level Input Current -20 uA maximum at Enable / Disable Pin = 0.7 Vcc Low Level Input Current -200 uA maximum at Enable / Disable Pin = 0 V Output Enable Time 200 nS maximum at output enable or 1 mS maximum at output enabled and stable Output Disable Time 200 nS maximum at output disable Vcc Supply Current disabled < 1 mA. Both outputs are high impedance when disabled. All other models Output Enable/Disable (E/D) Output Enable Time 100 nS maximum Output Disable Time 100 nS maximum When Disabled Q Output = Logic Low, QN Output = Logic High. Both Outputs are active
Note 1: PECL and ECL are identical circuits.
ECL has the most positive pin as ground and is ideally terminated by 50 ohms to - 2.00 V PECL has the most negative pin as ground and is ideally terminated by 50 ohms to the most (positive voltage less 2.00 V) Mechanical: See Next Pages
D Package
J Package Replacement
B Package
M Package
Mar 2004
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple -sales@pletronics.com, www.pletronics.com
1
PECL, LVDS, OCXO Page 1 - 7
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
B Package PECL Series
PE1145T, PE1145B, PE3345B, PE3745B
Differential PECL Output with Enable/ Disable Function, 5.0 Vcc or 3.3 Vcc 6 Pad 14x10x3mm Leadless Surface Mount Clock Oscillator
Part Numbering Guide
Portions of the part number that appear after the frequency may not be marked on part (C of C provided) PE11 45 B V - 70.0M - XXX (Internal Code or blank)
1.50 MHz
– 650.00 MHz
Model Series > 120.0 MHz to 650 MHz (5.0 Vcc) > 180.0 MHz to 650 MHz (3.3 Vcc) PE1145T = E/D on pin2
Packaging Tube or 24mm tape, 16mm pitch
Frequency in MHz Special Specifications (choose all that apply) E: Extended Operating Temperature Range (- 40 to +85°C) F: 47.5 /52.5% Symmetry at 50% of Vcc V: Supply Voltage of 3.3 volts ± 10% Y: Supply Voltage of 5.0 volts ± 10% Frequency Stability 45 = ± 50 PPM 44 = ± 25 PPM 20 = ± 20 PPM
1.5 MHz to 120 MHz (5.0 Vcc) 1.5 MHz to 180 MHz (3.3 Vcc) PE1145B = E/D on pin2, QN on pin 1 PE3345B = E/D on pin 2, QN on pin 5 PE3745B = E/D on pin 1, QN on pin 5
Consult factory for available frequencies and specs. Not all options available for all frequencies. A special part number may be assigned. Frequency Stability is inclusive of frequency shifts due to calibration, temperature, supply voltage, shock, vibration and load
Mechanical: inches (mm)
not to scale
Solder Pads
0.200 (5.08)
Due to part size and factory abilities, part marking may vary from lot to lot and may contain our part number or an internal code.
0.400 (10.16) MAX
4
5
6
3
2
1
1 2 3
0.560 (14.23) MAX
0.125 (3.17) MAX
0.200 (5.08)
0.055 0 .145 (1.4) (3.68)
PE1145T
PIN 1 2 3 4 5 6 SIGNAL N.C. E/D GND Q OUT QN OUT Vcc
PE1145B
PIN 1 2 3 4 5 6 SIGNAL QN OUT E/D GND Q OUT N.C. Vcc
PE3345B
PIN 1 2 3 4 5 6 SIGNAL N.C. E/D GND Q OUT QN OUT Vcc
PE3745B
PIN 1 2 3 4 5 6 SIGNAL E/D N.C. GND Q OUT QN OUT Vcc
See page 6 for Layout Guidelines
> 180.0 MHz to 650.0 MHz (3.3 Vcc) > 120.0 MHz to 650.0 MHz (5.0 Vcc)
Jun 2004
1.5 MHz to 180.0 MHz (3.3 Vcc) 1.5 MHz to 120.0 MHz (5.0 Vcc)
2A
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple -sales@pletronics.com, www.pletronics.com
0.118 0.228 (5.8) (3.0)
6
5
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PECL, LVDS, OCXO Page 1 - 7
Pl tronics., Inc.
Pl tronics., Inc.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
PECL and LVDS Layout Guidelines
SUGGESTED PCB LAYOUTS
Solder Pad Layout which accommodates all PECL surface mount devices 0.200 (5.08) 0 .185 (4.7) 0 .087 (2.2)
'B Pkg' 5 x7 TOP SIDE BYPASS
BOTTOM SIDE BYPASS
0.055 0.100 (1.4) (2.54)
The output line should be designed with proper characteristic impedance. Pletronics recommends laying out for the larger 'B package' with pads long enough to accept the smaller 5 x 7mm device. This permits the best option for alternate sources of device. Pletronics also recommends connecting Pin 1 and Pin 2 together on the models with Q & QN OUT on pins 4 & 5. This allows having E/D on either pin 1 or pin 2.
MULTI LAYER BYPASS
For Optimum Jitter Performance, Pletronics recommends: A ground plane under the device with any other signals below the ground plane Minimize other RF signals near device No large transient signals (both current and voltage) should be routed under the device Do not layout near a large magnetic field such as a high frequency switching power supply Do not place near piezoelectric buzzers or mechancial fans
Reflow Cycle for lead free processing
250 Temperature °C 200 150 100 215°C ± 10°C 50 Seconds 175°C ± 10°C 120 to 160 Seconds 260°C max 10 Seconds max
T Rise= 4 Degree/second max Mar 2004
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple -sales@pletronics.com, www.pletronics.com
6
PECL, LVDS, OCXO Page 1 - 7
Pl tronics., Inc.
19013 36th Ave. W, Suite H Lynnwood, WA 98036 USA
Manufacturer of High Quality Frequency Control Products
PECL and LVDS Layout Guidelines Continued
PECL Terminations:
Suggested Terminations for 50 ohm impedance matched termination
Vcc Vcc
R1 Vcc Out Oscillator GND Vcc Out Oscillator GND
Thevenin Equivalent Termination Vcc 5.0 V 3.3 V 2.5 V R1 82 ohm 130 ohm 249 ohm R2 130 ohm 82 ohm 61.9 ohm
50 ohm Vcc - 2.00 V
R2
Simple termination for NON impedance matched termination
Vcc
Vcc Out Oscillator GND
R load
Vcc 5.0 V 3.3 V 2.5 V
R load 274 ohm 147 ohm 86.6 ohm
LVDS Terminations:
Vcc
Vcc
Q Out Oscillator GND QN Out
100 ohm
Design PCB traces for 50 ohm characteristic impedance
Mixed System Power Supply:
PECL ECL LVDS
To use multiple supply voltages requires level translation. Direct circuit connection is not valid. Mixed supply voltages are allowed. No translation is necessary. (ECL is returned to the most positive supply and this is common to all circuits) Mixed supply voltages are allowed. LVDS signal levels are power supply independent. 3.3 V LVDS oscillators properly interface 2.5 V Logic Arrays for example.
Mar 2004
6A
Pl tronics, Inc. (425) 776 -1880, Fax: (425) 776-2760, ple -sales@pletronics.com, www.pletronics.com