Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com 560N P.C. BOARD MOUNT - EPOXY POTTED AUDIO TRANSFORMER • • • • • • • Rugged black epoxy potted case with 9 pin connections (0.25” square by 0.5” long) Higher signal levels possible with reduced low frequency performance Electrostatic shield between primary & secondary connected to core and pin “SH” Humbucking construction Balanced split windings on primary & secondary for circuit versatility Primaries and secondaries can be reversed for impedance matching Overall dimensions 1.64” x 1.33” x 0.85” high max Shipping weight 4 oz Power level: 0dbm @ 30 Hz. to 30 Khz. -Freq. range @ +0 dbm is 30 Hz. to 30 Khz. +/- 1.0db max -Freq. range @ +10 dbm is 30 Hz. to 30 Khz. -Freq. range @ +27 dbm is 30 Hz. to 30 Khz. -Freq. measurements with no D.C. saturation. 150/600 Ω 1 560N 8 7 6 5 SH 4 3 2 1 5 10K/40K Ω • 2 3 6 7 4 8 SH MADE IN CANADA 0dbm 30-30000Hz DATE ELECTRICAL SPECIFICATIONS Typical 150/600 Ω 10/40 KΩ 0 dbm 21.72 Ω 496.4 Ω @ 1.0 kHz, 1.0 V OC 0.733 H 48.90 H Leakage Inductance 0.614 mH 0.780 1.650 1.330 0.170 0.370 0.200 0.200 0.200 0.200 0.200 0.200 0.200 0.370 0.370 0.175 Impedance Primary Secondary 1.300 0.175 @ 1.0 kHz, 1.0 V OC 10.95 KΩ 642.0 KΩ SCHEMATIC DIAGRAM PRIMARY ±1.0db from 30Hz to 30KHz 8.185:1 500 Vrms -40 To 105°C** 1 5 2 3 6 7 4 SH 8 PCB LAYOUT Ø0.080 Ø0.045 0.200 TYP. 150/600 Ω Frequency Response Turns ratio Dielectric Strength Temperature Range SECONDARY 1.300 10K/40K Ω Characteristic Input Impedance Output Impedance Output Power DCR Primary 1-4 Secondary 5-8 Inductance Primary Secondary Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com **The epoxy that is used to cast these parts has a workable temperature range of –40°C to +105°C Under a normal rate of change, this does not include thermal shock. Variations in the transformer materials and environmental conditions may reduce the workable temperature range. This drawing and the information in it is the property of Hammond Manufacturing. It may not be reproduced, transmitted or used in any manner whatsoever without the written permission of Hammond Manufacturing. Data subject to change without notice. Hammond Mfg. Co. Ltd., Electronics Division www.hammondmfg.com TYPICAL TEST CIRCUIT Measurement instruments Hp4192a impedance analyzer Hp3456a DVM Keithley 2002 DVM D scope series iii audio analyzer PRIMARY R S/ SECONDARY 2 RL R S/ 2 OUT