HIGH FREQUENCY MAGNETICS Surface Mount Wideband Signal Splitter • Surface-mount, equal-ratio 3-port hybrid transformer designed for both analog and digital applications requiring signal splitting or combining • Extremely wide frequency response • Very fast rise time • Operating temperature range -40° C to +85° C • Meets IEC 695, 2-2 flammability requirements TM00152 • PWB Process Capability: standard printed wiring board assembly techniques, total-immersion cleaning • Reliability testing: shock, vibration, temperature cycling, temperature - humidity - bias • Tape and reel packaging: 24 mm wide by 16 mm pitch; 13 inch OD, 4 inch ID; 350 transformers per reel, max Meets ANSI/EIA 481-2 Carrier Tape Standards for JEDEC SO package ELECTRICAL SPECIFICATIONS at 25°C Impedance Ratio Nominal Signal Split dB 3dB Bandwidth typ (1-6) : (3-6) + (4-6) (1-6) to (3-6) (1-6) to (4-6) (1-6) to (3-6) (1-6) to (4-6) 75W : 75W + 75W 3.0 20 kHz - 800 MHz Part Number S553-6500-93 Return Loss (RL) typ Pulse Rise Time ns typ 0.5 Transhybrid Loss (THL) typ Port RL>20 db RL>30 db A 100 kHz - 500 MHz 400 kHz - 200 MHz B 200 kHz - 500 MHz 2 MHz - 300 MHz C 200 kHz - 500 MHz 2 MHz - 300 MHz Port THL>20 db THL>30 db B to C 100 kHz - 800 MHz 300 kHz - 500 MHz Port A = ASIG to GND Port B = BSIG to GND Port C = CSIG to GND SCHEMATIC S553-6500-93 3 BSIG ASIG 1 5 2 GND 6 4 CSIG ©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T1-121 HIGH FREQUENCY MAGNETICS Surface Mount Wideband Signal Splitter TM00152 MECHANICAL S553-6500-93 0.060 (1.52) 6 PHOSPHOR BRONZE, SOLDER COATED 4 5 0.280 (7.11) MAX 0.189 (4.80) 2 1 0.076 (1.93) 3 0.340 (8.64) MAX 0.268 (6.81) 0.268 (6.81) 0.004 (0.10) 6 SURFACES 0.670 (17.02) MAX 0.268 (6.81) 0.090 (2.29) 6 5 4 1 2 3 0.434 0.139 (11.02) (3.53) SUGGESTED PCB PAD LAYOUT Unless otherwise specified, dimensions are nominal and in inches (millimeters). ©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T1-122 0.404 (10.26) MAX HIGH FREQUENCY MAGNETICS Surface Mount Wideband Signal Splitter TM00152 PIN DIAGRAM APPLICATIONS NOTES The S553-6500-93 hybrid transformer operates with 75Ω terminations over an extremely wide frequency spectrum (3 dB response: 20 kHz to 800 MHz). It can also be used as a pulse transformer with very fast pulses (typical rise time: 0.5 ns). The transformer operates as either a signal splitter or a signal combiner. As a signal splitter, the transformer provides two identical output signals (which are in phase with each other) from a single input. Each of the two output signals is 3 dB down from the input signal (half the power of the input signal). There is a high degree of separation or transhybrid loss between the two output signals. As a signal combiner, the transformer provides a single output signal from two identical input signals (which are in phase with each other). The output signal has twice the power of either input signal. 2689J2 ASIG 1 6 GND COM1 2 5 COM2 BSIG 3 4 CSIG SIGNAL SPLITTER INPUT 2689J2 75 LINE ASIG OUTPUT 75 LINE BSIG COM1 R1 OUTPUT COM2 PIN DESCRIPTIONS AND TERMINATIONS 75 LINE CSIG C1 GND Pin 1 Symbol Name and Function ASIG A signal. Input for splitter configuration. Output for combiner application. 2 COM1 Common point of transformer 1. SIGNAL COMBINER Must be connected externally to COM2. 3 BSIG B signal. Output for splitter configuration. 4 CSIG C signal. Output for splitter configuration. Input for combiner application. 5 COM2 INPUT 75 LINE Ground. Connect to circuit ground. R1 162Ω external resistor. C1 BSIG Common point of transformer 2. GND 7 pF external capacitor. 75 LINE ASIG COM1 R1 Must be connected externally to COM1. 6 OUTPUT 2689J2 Input for combiner application. 75 LINE INPUT CSIG COM2 C1 GND ©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 Bel Fuse Inc. 198 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com T1-123 HIGH FREQUENCY MAGNETICS TM00152 Surface Mount Wideband Signal Splitter This page intentionally left blank. ©2000 Bel Fuse Inc. Specifications subject to change without notice. 09.00 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 198 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com Bel Fuse Ltd. 8F / 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com T1-124