HC5503CBZ Intersil, HC5503CBZ Datasheet
HC5503CBZ
Specifications of HC5503CBZ
Available stocks
Related parts for HC5503CBZ
HC5503CBZ Summary of contents
Page 1
... TEMP. PART NUMBER RANGE (°C) PACKAGE HC5503CB SOIC 24 Ld SOIC (Pb-free) M24.3 HC5503CBZ (Note SOIC (Pb-free) M24.3 HC5503CBZ96 (Note) NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations ...
Page 2
Block Diagram RD RFS C 2 TIP TF RING RF V BAT V CC BIAS AGND BGND DGND 2 HC5503 RING RELAY DRIVER RING TRIP DETECTOR 2-WIRE LOOP CURRENT INTERFACE DETECTOR THERMAL LIMIT 4-WIRE TX INTERFACE VF SIGNAL RX PATH ...
Page 3
Absolute Maximum Ratings (Note 1) Maximum Continuous Supply Voltages ( ...
Page 4
Electrical Specifications Unless Otherwise Specified 25°C. Min-Max Parameters are Over Operating Temperature Range. (Continued) A PARAMETER Dial Pulse Distortion Receive Input Impedance Transmit Output Impedance 2-Wire Return Loss Longitudinal ...
Page 5
Electrical Specifications Unless Otherwise Specified 25°C. Min-Max Parameters are Over Operating Temperature Range. (Continued) A PARAMETER Power Supply Rejection Ratio V to 2-Wire Transmit 2-Wire BAT V to Transmit BAT V ...
Page 6
... Thus, the DC output at ring feed is: V (DC Volts RF BAT For a -24V battery -20V. Hence, the nominal battery RF feed across the loop provided by the SLIC is 16V. When the subscriber goes off-hook this DC feed causes current (metallic current) to flow around the loop. ∆ TIP B1 TIP FEED 150Ω ...
Page 7
The value of Va result of feedback through R T output, is given in Equation 1. Equation voltage X divider equation between resistors R 2 combination of resistors and the internal 90kΩ ...
Page 8
... For optimum 2-wire return loss, the input impedance of the SLIC (Z ) must equal the load impedance (Z O Equations going further assume The loop current ∆IL is the total voltage across the loop divided by the total resistance of the loop. The total voltage across the loop is the sum of the tip feed voltage (V ...
Page 9
The Transversal Amplifier (TA) Whereas the feed amplifiers perform the 4-wire to 2-wire transmission function, the transversal amplifier acts as the 2-wire to 4-wire hybrid. The summing amplifier configured to reject common mode signals. It will reject ...
Page 10
HC5503 LOOP 533 R (Ω) LOOP FIGURE 4. DC LOOP CURRENT CHARACTERISTICS The longitudinal amplifier’s principal function is Ring Trip Detection. The ...
Page 11
... R The most stringent line fault condition that the SLIC has to 5 withstand is that of the lightning induced surge. The Intersil monolithic SLIC, in conjunction with a simple low - + cost diode bridge, can achieve up to 450V of isolation between the loop and switch. The level of isolation is a ...
Page 12
... AG must be applied first. 12 HC5503 DESCRIPTION is typically 5V Typical value is 0.3µF, 16V. BAT is typically -24V. Frequently referred to as “battery”. BAT ) input, as long as the SLIC is not in the power denial state ( the Failure may result in premature failure of the part user CC BAT ...
Page 13
... RFS BAT BG 12 RING RS TRIP RC RING CONTROL RD TIP 150Ω BAT BATTERY FEED BG RF LOOP CURRENT LIMITER 150Ω RING PD SLIC MICROCIRCUIT FIGURE N N/C 18 N N/C 13 SHD SHD SWITCH HOOK DETECTION LOOP MONITORING DIFF TX AMP TRANSMIT + - OUTPUT +1 LINE DRIVERS RX RECEIVE ...
Page 14
Schematic Diagram A-400 TIP FEED TF AMP V BAT TIP D36 RING 9 FEED V BAT ...
Page 15
... Current Protection The SLIC device, in conjunction with an external protection bridge, will withstand high voltage lightning surges and power line crosses. High voltage surge conditions are as specified in Table 1. The SLIC will withstand longitudinal currents maximum or 10mA , 5mA per leg, without any RMS RMS performance degradation ...
Page 16
Application Circuit TIP PRIMARY 4 PROTECTION MUST LIMIT INPUT VOLTAGE TO LESS THAN 450V RING PTC V BAT -24V NOTES ...
Page 17
... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...