Rainbow Electronics DS21458 - Manual (Page 175)

DS21455/DS21458 Quad T1/E1/J1 Transceivers
175 of 270
25.9 Component Specifications
Table 25-6. TRANSFORMER SPECIFICATIONS
SPECIFICATION RECOMMENDED VALUE
Turns Ratio (3.3V Applications) 1:1 (receive) and 1:2 (transmit) ±2%
Primary Inductance 600 mH minimum
Leakage Inductance 1.0 mH maximum
Intertwining Capacitance 40pF maximum
Transmit Transformer DC Resistance
Primary (Device Side)
Secondary
1.0Ω maximum
2.0Ω maximum
Receive Transformer DC Resistance
Primary (Device Side)
Secondary
1.2Ω maximum
1.2Ω maximum