HC5503T INTERSIL | Alldatasheet

Document overview

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Technical content

Features

  • Monolithic Integrated Device
  • Controlled Supply of Battery Feed Current for Short Loops (30mA)
  • Single +5V Supply
  • Allows Interfacing With All Ringing Systems
  • Switch Hook Detection
  • Compatible With Worldwide PBX Performance Requirements
  • Low Power Consumption During Standby

Applications

  • PBX Switches (Analog, Digital or ISDN)
  • Key Telephone Systems (KTS)
  • ISDN PC Plug in Modems
  • ISDN Small Office / Home Office (SOHO) Terminal Adapters (TA)
  • CTI (Computer Telephony Integration) Products Block Diagram

Ordering Information

TEMP. RANGE ( oC) PACKAGE PKG. NO. HC5503TCP 0 to 75 22 Ld PDIP E22.4 HC5503TCB 0 to 75 24 Ld SOIC M24.3 LOOP FEED SPEECH CIRCUIT LOOP DETECTOR BIAS VCC AGND DGND VBAT RF TF BGND TIP RING C1 TX RX SHD RS Data Sheet J une 1998 File Number 4506

Absolute Maximum Ratings(Note 1) Thermal Information Maximum Continuous Supply Voltages Operating Conditions Temperature Range Thermal Resistance (Typical, Note 2) θJA (oC/W) (SOIC - Lead Tips Only) Die Characteristics CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operationo ft h e device at these or any other conditions above those indicated in the operational sections of this specification is not implied. NOTES: 1. Absolute maximum ratings are limiting values, applied individually, beyond which the serviceability of the circuit may be impaired. Functional operability under any of these conditions is not necessarily implied. 2. θJA is measured with the component mounted on an evaluation PC board in free air. Electrical SpecificationsUnless Otherwise Specified, VBAT = -48V, VCC = 5V, AG = BG = DG = 0V, Typical Parameters TA = 25oC. Min-Max Parameters are Over Operating Temperature Range PARAMETER CONDITIONS MIN TYP MAX UNITS Off Hook IB+R L = 600Ω, TA = 25oC - - 5.3 mA Off Hook IB-R L = 600Ω - - 39 mA Off Hook Loop Current R L = 1200Ω -2 1- m A Off Hook Loop Current R L = 1200Ω , VBAT = -42V, TA = 25oC 17.5 - - mA Off Hook Loop Current R L = 200Ω 25.5 30 34.5 mA Switch Hook Detection Threshold SHD = VOL 10 - - mA SHD = VOH --5 m A Dial Pulse Distortion 0-5 µs Longitudinal Balance 1V RMS 200Hz - 3400Hz, (Note 3) IEEE Method 0oC ≤ TA ≤ 75oC2-Wire Off Hook -6 5-d B 2-Wire On Hook -6 3-d B Tip and Ring to TX, Off Hook -5 8-d B Insertion Loss At 1kHz, 0dBm Input Level, Referenced 600 Ω - ±0.05 ±0.2 dB2-Wire to TX, RX to 2-Wire Frequency Response 200 - 3400Hz Referenced to Absolute Loss at 1kHz and 0dBm Signal Level (Note 3) - ±0.02 ±0.05 dB Idle Channel Noise (Note 3) - 1 5 dBrnC2-Wire to TX, RX to 2-Wire - -89 -85 dBm0p Trans Hybrid Loss RX to TX Balance Network Set Up for 600Ω Termination at 1kHz - 40 - dB Overload Level, 2-Wire to TX, RX to 2-Wire VCC = +5V, (Note 3) 2.5 - - V Peak HC5503T

2-Wire to TX, RX to 2-Wire At 1kHz, (Note 3) Referenced to 0dBm Level +3 to -40dBm - - ±0.05 dB -40 to -50dBm - - ±0.1 dB -50 to -55dBm - - ±0.3 dB Power Supply Rejection Ratio (Note 3) VCC to 2-Wire 200 - 3400kHz, R L = 600Ω -4 0-d B VCC to Transmit -4 0-d B VBAT to 2-Wire -4 0-d B VBAT to Transmit -4 0-d B Logic Input Current (RS,RC) 0V ≤ VIN ≤ 5V - - ±100 µA Logic Inputs (RS,RC) Logic ‘0’ VIL - - 0.8 V Logic ‘1’ VIH 2.0 - 5.5 V Logic Output (SHD) Logic ‘0’ VOL ILOAD 800µA, VCC = 5V - 0.1 0.5 V Logic ‘1’ VOH ILOAD 40µA, VCC = 5V 2.7 - 5.0 V NOTES: 3. These parameters are controlled by design or process parameters and are not directly tested. These parameters are characterized upon initial design release, upon design changes which would affect these characteristics, and at intervals to assure product quality and specification com- pliance. Electrical SpecificationsUnless Otherwise Specified, VBAT = -48V, VCC = 5V, AG = BG = DG = 0V, Typical Parameters TA = 25oC. Min-Max Parameters are Over Operating Temperature Range (Continued) PARAMETER CONDITIONS MIN TYP MAX UNITS HC5503T (PDIP) TOP VIEW HC5503T (SOIC) TOP VIEW TIP RING DGND RS N/C RF VBAT TX N/C N/C AGND C1 RX N/C N/C SHD TF VCC BGND TIP RING DGND RS TF RF BGND TX N/C N/C AGND N/C RX N/C N/C N/C SHD N/C VCC VBAT HC5503T

22 PIN

24 PIN

1 1 TIP An analog input connected to the TIP (more positive) side of the subscriber loop through a 150Ω feed resistor. Functions with the Ring terminal to receive voice signals from the telephone and for loop monitoring purposes. 2 2 RING An analog input connected to the RING (more negative) side of the subscriber loop through a 150Ω feed re- sistor. Functions with the Tip terminal to receive voice signals from the telephone and for loop monitoring purposes. 33 V CC Positive Voltage Source - Most positive supply. VCC is typically 5V. 4 N/C No Connect. For proper operation this pin should be left floating. 45 C 1 Capacitor - An external capacitor to be connected between this terminal and analog ground. Required for proper operation of the voice band hybrid. Typical value is 0.3µF , 30V. 5 6 DGND Digital Ground - To be connected to zero potential and serves as a reference for all digital inputs and outputs on the SLIC microcircuit. 6 7 RS This pin should be tied to 5V. 7 8 N/C No Connect. For proper operation this pin should be left floating. 8 9 T F T i pF e e d-Al o w impedance analog output connected to the TIP terminal through a 150Ω feed resistor. Pro- vides voice signals to the telephone set and sink longitudinal current. 9 10 RF Ring Fee d - A low impedance analog output connected to the RING terminal through a 150Ω feed resistor. Functions with the TF terminal to provide loop current, feed voice signals to the telephone set, and sink lon- gitudinal current. 10 11 V BAT Negative Voltage Source - Most negative supply. VBAT has an operational range of -24V to -58V. Frequently referred to as “battery”. 11 12 BGND Battery Ground - To be connected to zero potential. All loop current and some quiescent current flows into this ground terminal. 12 13 SHD Switch Hook Detectio n-Al o wactive LS TTL - compatible logic output. This output is enabled for loop cur- rents exceeding 10mA and disabled for loop currents less than 5mA. 13 14 N/C No Connect. For proper operation this pin should be left floating. 15 N/C No Connect. For proper operation this pin should be left floating. 14 16 N/C No Connect. For proper operation this pin should be left floating. 15 17 N/C No Connect. For proper operation this pin should be left floating. 16 18 T1 Used during production testing. For proper operation this pin should be connected to pin T2. 17 19 T2 Used during production testing. For proper operation this pin should be connected to pin T1. 18 20 T3 Used during production testing. For proper operation this pin should be connected to Analog Ground pin AGND. 19 21 RX Receive Input - A high impedance analog input which is internally biased. Capacitive coupling to this input is required. AC signals appearing at this input differentially drive the Tip feed and Ring feed terminals, which in turn drive tip and ring through 300Ω of feed resistance on each side of the line. 20 22 N/C No Connect. For proper operation this pin should be left floating. 21 23 AGND Analog Ground - To be connected to zero potential and serves as a reference for the transmit output (TX) and receive input (RX) terminals. 22 24 TX Transmit Output - A low impedance analog output which represents the differential voltage across Tip and Ring. This output is unbalanced and referenced to analog ground. Since the DC level of this output varies with loop current, capacitive coupling to the next stage is essential. NOTE: All grounds (AGND, BGND, and DGND) must be applied before V CC or VBAT. Failure to do so may result in premature failure of the part. If a user wishes to run separate grounds off a line card, the AG must be applied first. HC5503T

All Intersil semiconductor products are manufactured, assembled and tested underISO9000 quality systems certification. from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. PTC used as ring generator ballast.

  1. Secondary protection diode bridge recommended is a 2A, 200V type.
  2. All grounds (AG, BG, and DG) must be applied before V

to run separate grounds off a line card, the AG must be applied first.

  1. Application shows Ring Injected Ringing.

PIN NUMBERS GIVEN FOR SOIC PACKAGE. FIGURE 1. TYPICAL LINE CIRCUIT APPLICATION WITH THE MONOLITHIC SLIC