Signal Processing Systems : Audio Transformers : Jensen Transformers, Inc. - JT-16-A

Microphone Input Transformer with 0.025% Distortion Ratio

Model: JT-16-A

Wide bandwidth -3dB at 0.45Hz and 220kHz
Excellent time domain performance DLP +1° typical
Transformer related noise figure only 1.7dB
High common-mode rejection 117dB at 60Hz

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JT-16-A transformer, with its 750ohms secondary source impedance, will produce the best signal-to-noise performance with ultra-low en amplifiers such as the Jensen JT-990-C module. The primary is fully balanced and its leads may be reversed to invert polarity, if required. A 30dB magnetic shield package is standard.

Wide bandwidth -3dB at 0.45Hz and 220kHz
Excellent time domain performance DLP +1° typical
Transformer related noise figure only 1.7dB
High common-mode rejection 117dB at 60Hz

Audio Transformer Type - Input Transformer
Spec Sheet available - Yes

Operating Temperature (Maximum): 158 F
Operating Temperature (Minimum): 32 F
Maximum Bandwidth: 220 kHz (-3dB)
Impedance Ratio: 150:600
Input Impedance: 1.61 kohms (1kHz, -20dBu, test circuit 1)
Voltage Gain: 5.70 dB (1kHz, -20dBu, test circuit 1)
Deviation from linear phase (DLP): +1.1/-0 ° (20Hz to 20kHz, -20dBu, test circuit 1)
Distortion (THD): 0.025 % (20Hz, -20dBu, test circuit 1)
Maximum 20Hz input level: +9.7 dBu (1% THD, test circuit 1)
Common-mode Rejection Ratio (CMRR) 150ohms Balanced Source: 117 dB (60Hz, test circuit 2)
Output Impedance: 742 ohms (1kHz, test circuit 1)
Primary DC resistances: 23.5 ohms
Secondary DC resistances: 148.7 ohms
Capacitances at 1kHz: 355 pF (secondary to shield (BLK) and case (WHI))
Turns Ratio: 1:2.000