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| LVPECL Terminators Technical Data Sheet RoHS Compliant Parts Available Description These integrated termination networks provide high performance line termination for LVPECL busses. Specifically designed shielding inside the package combined with a ceramic substrate virtually eliminates cross talk between channels that is common in other termination networks and resistor arrays. The BGA packaging has been proven to reduce rework and improve reliability. Style G 3 Features * * * * * * * 8 Bit Thevinin Termination Set Compliant for LVPECL Termination Excellent High Frequency Performance Slim BGA Package 1% Resistor Tolerance Low Channel to Channel Cross Talk RoHS Compliant Designs Available * Compatible with both lead and leadfree processes LVPECL Thevenin Termination VCC R1 R1 Zo R2 2 R2 1 A B C D E F G H Zo = 50 Ohms VC C = 3.3 Volts VEE = 0 Volts Thevenin Vtt = 1.3Volts R1 = 127 Ohms R2 = 82.5 Ohms VEE Electrical Specifications Resistor Tolerance: TCR Operating Temperature Range Maximum Resistor Power: R1 R2 Maximum Package Power: Process Requirements: Maximum Re-flow Temperature 1.0% 200 ppm/C -55C to +125C B6-1.27mm Pitch 96mw 96mw 1.0 Watt at 70C Typical Application LVPECL DRIVERS VEE VC C R2 R1 LVPECL RECEVERS B7-1.00mm Pitch 60mW 66mW Per IPC/JEDEC J-STD-020C CTS RT2250 Ordering Information Standard Part No. RT1250B6* R1 127 R2 82.5 Bits 8 Pitch (mm) 1.27 RoHS Part No. RT2250B6* Packaging Information Suffix Tape Width Carrier Pitch Reel Diameter Parts/Reel TR7 24 mm 8 mm 7 inch 1,000 TR13 24mm 8 mm 13 inch 4,000 RT1250B7 127 82.5 8 1.00 RT2250B7 *Indicates available Top Probe-able part numbers. Refer to the following link for detailed Top Side Probe-able information: www.ctscorp.com/components/clearone/TopProveClearOne.pdf Part Number Coding 7 inch reel, Add TR7 to part number, example RT2250B7TR7 13 inch reel, Add TR13 to part number, example RT2250B7TR13 (Bulk packaging is not available) Direction of Feed CTS Electronic Components www.ctscorp.com (c) 2006 CTS Corporation. All rights reserved. Information subject to change. Page 1 LVPECL Terminators March 06 Recommended Land Pattern Outline of Substrate BGA Routing Scheme Blind vias to VEE reference plane layer recommended on every other row as shown. Blind vias to V CC reference plane layer recommended on every other row as shown. PCB Pad Diameter 1.00mm Pitch (B7) = 0.51mm/.020 inch (minimum) 1.27mm pitch (B6) = 0.64mm/.025 inch (minimum) Solder Mask Dia = Pad Diameter +.15mm (.006 inch) Signal Lines 9 mil trace width or similar to achieve controlled 50 Ohm transmission line impedance Zo. For .006" Thick Solder Paste Stencil, Aperture Opening Should be Equal to the PCB Pad Diameter. Refer to www.ctscorp.com/components/clearone.asp for additional PCB design information Mechanical Diagram L H W RT_250B_ CTS YRWK A1 Identifier P (Pitch) P (Pitch) K D 1.00mm Pitch RT1250B7 RT2250B7 RT1250B6 RT2250B6 mm inch mm inch L 8.000.15 .315.006 W 3.000.15 .118.006 H 1.190.15 .047.006 P 1.000.25 .039.010 D 0.640.05 .025.002 K 0.500.25 .020.010 1.27mm Pitch L 10.160.15 .400.006 W 3.810.15 .150.006 H 1.320.15 .052.006 P 1.270.25 .050.010 D 0.760.05 .030.002 K 0.640.25 .025.010 Complete ClearONE Product, Processing, and Application Information can be found at the following link: http://www.ctscorp.com/components/clearone.asp CTS Electronic Components www.ctscorp.com (c) 2006 CTS Corporation. All rights reserved. Information subject to change. Page 2 LVPECL Terminators March 06 |
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