Superior Magnetics Since 1979
Professional to HiFi Level Reduction Transformer
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Converts 600
S
S
S
S Professional Level to HiFi Level
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Very Good Bandwidth (essentially flat to 60 kHz; -3 dB at 120 kHz)
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Very Good CMRR: 112 dB at 60 Hz
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+18 dB nominal voltage step-down
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Low profile package; pc mount
The CineMag CM-99115 converts 600
S line level signals to consumer HiFi level, allowing the
HiFi system ground (which is also the frame ground) to be isolated from the 600
S common.
This helps avoid troublesome ground loops. The CM-99115 exhibits good bandwidth, excellent
common-mode rejection ratio (CMRR), and good distortion characteristics. It is encased in a
FMetal can which provides 30 dB of magnetic shielding. The wires from the internal foil shields
between windings are spot welded for maximum long term reliability, as is done with all
CineMag transformers.
This transformer’s secondary has moderately high impedance. Care must be exercised in the
design of the amplifier that it drives to obtain best results and to realize good bandwidth.
CM-99115
Parameter
Conditions
Typ
Turns Ratio
5.1 : 1
Voltage Gain
1 kHz, + 0.0 dBu 600
S input, 2.43K
secondary load impedance
-9.40 dB
Distortion (THD+N%)
1 kHz, +18 dBu
Test Circuit 1
20 Hz, +18 dBu
Test Circuit 1
0.0012%
0.25%
Max 20 Hz input level
0.5% THD;
Test Circuit 1
+19 dB
Response, ref 1 kHz
20 Hz
Test Circuit 1
20 kHz
Test Circuit 1
-3 dB
-0.1 dB
-0.07dB
190 kHz
Phase Shift at 20 Hz
Phase Shift at 20 kHz
Referenced to source generator
Test Circuit 1
0
E
-6
E
CMRR
60 Hz Test Circuit 2 per IEEE Std 389-1996 ¶19
1 kHz Test Circuit 2 per IEEE Std 389-1996 ¶19
120 dB
100 dB
Operating Temp Range
Operation and storage
0
E C Min
70
E C Max
9050 Independence Ave. Canoga Park, California 91304
F(818) 993-4644 J (818) 993-4604
http://www.cinemag.biz
CM-99115
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