DLL-057R-0.94G DELAY LINE PRELIMINARY REV: 008, 06/07/05 TECHNICAL DESCRIPTION MULTI-MIX® DELAY LINES APPLICATIONS • GSM • BASE STATION POWER AMPLIFIER LINEARIZATION NETWORKS • FEED FORWARD • PRE-DISTORTION • ADAPTIVE INTERFERENCE CANCELLATION FEATURES • 925 - 960 MHz • LOW LOSS • LOW VSWR • SURFACE MOUNT • LOW COST The DLL-057R-0.94G, a member of the Multi-Mix® DLL family of delay lines, provides a mean delay of 5.68 nS in the GSM band and features low insertion loss and low VSWR. The DLL-057R-0.94G exhibits excellent phase linearity and amplitude flatness over the 925 - 960 MHz frequency range. The Multi-Mix® DLL-057R-0.94G is intended for use in power amplifier linearization networks such as feedforward and predistortion. DLL delay lines are fusion bonded multilayer stripline structures. The DLL series offers an excellent alternative to expensive coaxial and delay filter structures. The fusion bonding process yields a homgeneous monolithic dielectric structure with reliability, ruggedness and electrical and thermal performance that is superior to conventional adhesive bonding techniques. GENERAL SPECIFICATIONS FREQUENCY RANGE MHz MEAN DELAY* (nS) PHASE DEVIATION (DEGREES MAX) AMPLITUDE FLATNESS (dB p-p) 925 - 960 5.68 ± 0.11 ± 1.0 0.1 RETURN LOSS (dB MIN) INSERTION LOSS (dB MAX) POWER HANDLING (WATTS) RF INTERFACE SIZE/OUTLINE (Inches - l,w,h) 20 2.6 15 Surface Mount 1.0 x 1.0 x 0.09 Specifications are based upon unit mounted on printed circuit board with 50 Ohm nominal impedance. *Mean delay refers to the group delay of the applied input signal through the network. The specified tolerance relates to unit-unit group delay variation. PACKAGE OUTLINE HOT VIA 1.000 [25.40] HOT VIA GND 0.070 [1.78] SQ 0.848 [21.54] 3X 0.037 [0.94] 1.000 [25.40] 0.087 [2.21] 2 1 ORIENTATION MARKER DENOTES PIN LOCATION GND PIN 2 0.848 [21.54] PIN 1 THE MULTI-MIX MICROTECHNOLOGY® GROUP IS ISO 9001:2000 REGISTERED U.S. Patent 6,099,677 and other Patents Pending. Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: [email protected] / www.merrimacind.com Transmission vs. Frequency 1.0 0.00 0.8 -0.25 0.6 -0.50 0.4 -0.75 Magnitude (dB) Phase (Deg) Deviation from Linear Phase vs. Frequency 0.2 0.0 -0.2 -0.4 -1.00 -1.25 -1.50 -1.75 -0.6 -2.00 -0.8 -2.25 -1.0 0.925 0.930 0.935 0.940 0.945 0.950 0.955 -2.50 0.925 0.960 0.930 0.935 0.940 Frequency (GHz) 0.945 0.950 0.955 0.960 0.950 0.955 0.960 Frequency (GHz) Return vs. Frequency Amplitude Flatness vs. Frequency 0 0.05 0.04 0.03 Magnitude (dB) -10 Series1 Series2 -20 -30 0.02 0.01 0.00 -0.01 -0.02 -0.03 -0.04 -40 0.925 -0.05 0.930 0.935 0.940 0.945 0.950 0.955 0.925 0.960 0.930 0.935 0.940 0.945 Frequency (GHz) Frequency (GHz) Group Delay vs. Frequency 6.230 6.120 6.010 5.900 Delay (nS) 5.790 5.680 5.570 5.460 5.350 5.240 5.130 0.925 0.930 0.935 0.940 0.945 0.950 0.955 0.960 Frequency (GHz) MOUNTING CONFIGURATION GROUND PLANE OF UNIT SHOULD BE SOLDERED TO GROUND PLANE OF CIRCUIT BOARD FOR OPTIMUM PERFORMANCE. 2X 0.848 [21.54] 2X 0.848 [21.54] 0.037 TYP [0.94] 2X 0.069 [1.77] 4X 0.076 [1.93] 4X 0.076 [1.93] Magnitude (dB) DLL-057R-0.94G TYPICAL PERFORMANCE 50 OHM LINE .032 DIELECTRIC THICKNESS ER = 3.38 GROUND PLANE Merrimac Industries / 41 Fairfield Place, West Caldwell, NJ 07006 Tel: 1.888.434.MMFM / Fax: 973.882.5990 / Email: [email protected] / www.merrimacind.com