Description
Line Input Transformer VTXLIN21
10kΩ 2 : 1+1
High performance Line Input Transformer VTXLIN21 – Used in audio systems to interface line-level signals with the input stages of amplifiers, mixers, or other equipment.
Its primary purpose is to;
- optimise signal transfer
- provide electrical isolation
- minimise noise and interference in audio systems
Transformer Data Sheet – Click to open and DOWNLOAD
LINE Input Transformer VTXLIN21
- 10k line input transformer
Input +20dBu max. (20Hz) <1%THD
+29dBu max. (50Hz) <1% THD - Fitted with multiple electrostatic screens
Low distortion Mu-metal core
Mu-metal screening can reduces electrical noise by up to 30dB - Hi-pot, primary to secondaries: 500VDC
Windings to screens+can: 500VDC - Operating temperature range: 0 to +70 C
Storage temperature range: -25 C to +120 C - Mass = 0.1kg
Tolerance on can dimensions: +/- 0.5mm
LINE Input Transformer VTXLIN21 Electrical characteristics
Specification (test circuit 1):
Turns ratio: 1 to 1
DC resistance (Ω+/-15%)
Primary (1 – 5): 1650
Secondary (10 – 6): 1650
Input impedance (Ω): 13k (typ.) @ 1kHz
Output impedance (Ω): 3.28kΩ (typ.) @ 1kHz
Voltage gain @ 1kHz, 0dBu: -2.56dBu (typ.)
Maximum input @ 20Hz,<1% THD: +20dBu
Insertion loss: 2.5dB (typ.)
Leakage inductance
- (1 – 5) @ 1kHz: 29mH (typ.)
- (10 – 6) @ 1kHz: 29mH (typ.)
Capacitance @ 10kHz, 0.1V:
- Cp-s: 78pF (typ.) or 5pF (typ.) with screen earthed
- Cp-scr: 140pF (typ.)
- Cs-scr: 150pF (typ.)
Specification (test circuit 2)
Turns ratio: 2 to 1
DC resistance (Ω+/-15%)
Primary (1 – 5):1645
Secondary: 400 (windings in parallel)
Input impedance (Ω): 13k (typ.) @ 1kHz
Output impedance (Ω): 948Ω (typ.) @ 1kHz
Voltage gain @ 1kHz, 0dBu: -7.4Bu (typ.)
Maximum input @ 20Hz, <1% THD: +20dBu
Insertion loss: 2.4dB (typ.)
Leakage inductance
- (1 – 5) @ 1kHz: 29mH (typ.)
- (9+10) – (6+7): 7.4mH (typ.)
Capacitance @ 10kHz, 0.1V:
- Cp-s: 120pF (typ.) or 5pF (typ.) with screen earthed
- Cp-scr: 230pF (typ.)
- Cs-scr: 230pF (typ.)
