HC5503T ® Data Sheet June 2004 Balanced PBX / Key System SLIC, Subscriber Line Interface Circuit Features • Monolithic Integrated Device The Intersil HC5503T is a low cost Subscriber Line Interface Circuit (SLIC) that replaces the components of a discrete Transformer Analog circuit design. The monolithic integrated design provides improved performance and system reliability. • Controlled Supply of Battery Feed Current for Short Loops (30mA) • Single +5V Supply • Allows Interfacing With All Ringing Systems The HC5503T provides: Current limited DC feed to the subscriber loop, maintains a flat frequency response over the voice band and beyond, has self resetting thermal protection that allows conversation to continue while the fault is present, provides a TTL subscriber off hook indication even in the presence of longitudinal currents, and limits system power consumption on short loops. • Switch Hook Detection • Compatible With Worldwide PBX Performance Requirements • Low Power Consumption During Standby • Pb-free Available Applications The HC5503T provides balanced 2-wire transmission and has excellent longitudinal balance, while providing on hook transmission and longitudinal current rejection in both the on-hook or off-hook conditions. • PBX Switches (Analog, Digital or ISDN) • Key Telephone Systems (KTS) • ISDN PC Plug in Modems The SLIC needs only one +5V supply in addition to the main battery supply for loop current and operates over a range of battery voltages (-24V to -58V). • ISDN Small Office/Home Office (SOHO) Terminal Adapters (TA) • CTI (Computer Telephony Integration) Products Available in 24SO packaging. The HC5503T is ideally suited as a replacement for discrete line circuits in low cost analog PABXs, small Office/Home Office products or Small Key Systems. Ordering Information PART NUMBER Block Diagram BGND TIP RING C1 TX TF RF SPEECH CIRCUIT LOOP FEED FN4506.2 RX VBAT TEMP. RANGE (°C) PACKAGE PKG. DWG. # HC5503TCB 0 to 75 24 Ld SOIC M24.3 HC5503TCBZ (Note) 0 to 75 24 Ld SOIC (Pb-free) M24.3 HC5503TCBZ96 (Note) 0 to 75 24 Ld SOIC M24.3 Tape & Reel (Pb-free) 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. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J Std-020B. LOOP DETECTOR SHD BIAS RS VCC 1 AGND DGND CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Harris Corporation 1996, Copyright Intersil Americas Inc. 2003, 2004. All Rights Reserved All other trademarks mentioned are the property of their respective owners. HC5503T Absolute Maximum Ratings (Note 1) Thermal Information Maximum Continuous Supply Voltages (VBAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -60 to 0.5V (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to 7V (VCC - VBAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75V Relay Drive Voltage (VRD). . . . . . . . . . . . . . . . . . . . . . . . -0.5 to 15V Thermal Resistance (Typical, Note 2) θJA (°C/W) SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Maximum Junction Temperature (Plastic Package) . . . . . . . . 150°C Maximum Storage Temperature Range . . . . . . . . . . -65°C to 150°C Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300°C (SOIC - Lead Tips Only) Operating Conditions Die Characteristics Temperature Range HC-5503T-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 75°C Positive Supply Voltage (VCC). . . . . . . . . . . . . . . . . . 4.75V to 5.25V Negative Supply Voltage (VBAT) . . . . . . . . . . . . . . . . . . -24V to -58V High Level Logic Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 2.4V Low Level Logic Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 0.6V Transistor Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 Diode Count. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Die Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137 x 102 Substrate Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connected Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bipolar-DI CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the 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 Specifications Unless Otherwise Specified, VBAT = -48V, VCC = 5V, AG = BG = DG = 0V, Typical Parameters TA = 25°C. Min-Max Parameters are Over Operating Temperature Range PARAMETER CONDITIONS MIN TYP MAX UNITS Off Hook IB+ RL = 600Ω, TA = 25°C - - 5.3 mA Off Hook IB- RL = 600Ω - - 39 mA Off Hook Loop Current RL = 1200Ω - 21 - mA Off Hook Loop Current RL = 1200Ω, VBAT = -42V, TA = 25°C 17.5 - - mA Off Hook Loop Current RL = 200Ω 25.5 30 34.5 mA Switch Hook Detection Threshold SHD = VOL 10 - - mA SHD = VOH - - 5 mA 0 - 5 µs - 65 - dB 2-Wire On Hook - 63 - dB Tip and Ring to TX, Off Hook - 58 - dB - ±0.05 ±0.2 dB - ±0.02 ±0.05 dB - 1 5 dBrnC - -89 -85 dBm0p - 40 - dB 2.5 - - VPEAK Dial Pulse Distortion Longitudinal Balance 1VRMS 200Hz - 3400Hz, (Note 3) IEEE Method 0°C ≤ TA ≤ 75°C 2-Wire Off Hook Insertion Loss At 1kHz, 0dBm Input Level, Referenced 600Ω 2-Wire to TX, RX to 2-Wire Frequency Response 200 - 3400Hz Referenced to Absolute Loss at 1kHz and 0dBm Signal Level (Note 3) Idle Channel Noise (Note 3) 2-Wire to TX, RX to 2-Wire Trans Hybrid Loss, RX to TX Balance Network Set Up for 600Ω Termination at 1kHz Overload Level, 2-Wire to TX, RX to 2-Wire VCC = +5V, (Note 3) 2 HC5503T Electrical Specifications Unless Otherwise Specified, VBAT = -48V, VCC = 5V, AG = BG = DG = 0V, Typical Parameters TA = 25°C. Min-Max Parameters are Over Operating Temperature Range (Continued) PARAMETER CONDITIONS MIN TYP MAX UNITS +3 to -40dBm - - ±0.05 dB -40 to -50dBm - - ±0.1 dB -50 to -55dBm - - ±0.3 dB - 40 - dB VCC to Transmit - 40 - dB VBAT to 2-Wire - 40 - dB VBAT to Transmit - 40 - dB - - ±100 µA Logic ‘0’ VIL - - 0.8 V Logic ‘1’ VIH 2.0 - 5.5 V Level Linearity 2-Wire to TX, RX to 2-Wire At 1kHz, (Note 3) Referenced to 0dBm Level Power Supply Rejection Ratio (Note 3) VCC to 2-Wire 200 - 3400kHz, RL = 600Ω 0V ≤ VIN ≤ 5V Logic Input Current (RS, RC) Logic Inputs (RS, RC) 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 NOTE: 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 compliance. Pinout HC5503T (SOIC) TOP VIEW 3 TIP 1 24 TX RING 2 23 AGND VCC 3 22 N/C N/C 4 21 RX C1 5 20 T3 DGND 6 19 T2 RS 7 18 T1 N/C 8 17 N/C TF 9 16 N/C RF 10 15 N/C VBAT 11 14 N/C BGND 12 13 SHD HC5503T Pin Descriptions 24 PIN SOIC SYMBOL DESCRIPTION 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 RING An analog input connected to the RING (more negative) side of the subscriber loop through a 150Ω feed resistor. Functions with the Tip terminal to receive voice signals from the telephone and for loop monitoring purposes. 3 VCC Positive Voltage Source - Most positive supply. VCC is typically 5V. 4 N/C No Connect. For proper operation this pin should be left floating. 5 C1 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. 6 DGND 7 RS This pin should be tied to 5V. 8 N/C No Connect. For proper operation this pin should be left floating. 9 TF Tip Feed - A low impedance analog output connected to the TIP terminal through a 150Ω feed resistor. Provides voice signals to the telephone set and sink longitudinal current. 10 RF Ring Feed - 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 longitudinal current. 11 VBAT Negative Voltage Source - Most negative supply. VBAT has an operational range of -24V to -58V. Frequently referred to as “battery”. 12 BGND Battery Ground - To be connected to zero potential. All loop current and some quiescent current flows into this ground terminal. 13 SHD Switch Hook Detection - A low active LS TTL - compatible logic output. This output is enabled for loop currents exceeding 10mA and disabled for loop currents less than 5mA. 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. 16 N/C No Connect. For proper operation this pin should be left floating. 17 N/C No Connect. For proper operation this pin should be left floating. 18 T1 Used during production testing. For proper operation this pin should be connected to pin T2. 19 T2 Used during production testing. For proper operation this pin should be connected to pin T1. 20 T3 Used during production testing. For proper operation this pin should be connected to Analog Ground pin AGND. 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. 22 N/C No Connect. For proper operation this pin should be left floating. 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. 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. Digital Ground - To be connected to zero potential and serves as a reference for all digital inputs and outputs on the SLIC microcircuit. NOTE: All grounds (AGND, BGND, and DGND) must be applied before VCC 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. 4 HC5503T Applications Diagram SYSTEM CONTROLLER 13 5V 7 C5 SHD RS TX TIP K1A RB1 1 RB2 9 TIP RX TIP FEED SLIC HC5503T (NOTE 4) VBAT 10 RB4 2 K1A RB3 RING 19 T2 RING FEED 18 T1 RING VBAT 11 BGND DGND AGND C2 12 6 23 C1 VCC C3 C4 21 20 T3 PRIMARY SUBSCRIBER PROTECTION LOOP 24 5 3 C1 PTC VCC -48V PIN NUMBERS GIVEN FOR SOIC PACKAGE. Z1 RING GENERATOR -48V FIGURE 1. TYPICAL LINE CIRCUIT APPLICATION WITH THE MONOLITHIC SLIC Typical Component Values C1 = 0.3µF, 30V, ± 20%. C4 = 0.5µF, 20V, ± 20%. C2 = 0.01µF, 100V,± 20%. C5 = 0.5µF, 30V, ± 20%. C3 = 0.01µF, 20V, ± 20%. RB1 = RB2 = RB3 = RB4 = 150Ω. PTC used as ring generator ballast. NOTES: 4. Secondary protection diode bridge recommended is a 2A, 200V type. 5. All grounds (AG, BG, and DG) must be applied before VCC 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. 6. Application shows Ring Injected Ringing. 5 HC5503T Small Outline Plastic Packages (SOIC) M24.3 (JEDEC MS-013-AD ISSUE C) N 24 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE INDEX AREA 0.25(0.010) M H B M INCHES E -B1 2 3 L SEATING PLANE -A- h x 45o A D -C- e A1 B C 0.10(0.004) 0.25(0.010) M C A M SYMBOL MIN MAX MIN MAX NOTES A 0.0926 0.1043 2.35 2.65 - A1 0.0040 0.0118 0.10 0.30 - B 0.013 0.020 0.33 0.51 9 C 0.0091 0.0125 0.23 0.32 - D 0.5985 0.6141 15.20 15.60 3 E 0.2914 0.2992 7.40 7.60 4 e µα B S 0.05 BSC 1.27 BSC - H 0.394 0.419 10.00 10.65 - h 0.010 0.029 0.25 0.75 5 L 0.016 0.050 0.40 1.27 6 N α NOTES: MILLIMETERS 24 0o 24 8o 0o 1. Symbols are defined in the “MO Series Symbol List” in Section 2.2 of Publication Number 95. 7 8o Rev. 0 12/93 2. Dimensioning and tolerancing per ANSI Y14.5M-1982. 3. Dimension “D” does not include mold flash, protrusions or gate burrs. Mold flash, protrusion and gate burrs shall not exceed 0.15mm (0.006 inch) per side. 4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010 inch) per side. 5. The chamfer on the body is optional. If it is not present, a visual index feature must be located within the crosshatched area. 6. “L” is the length of terminal for soldering to a substrate. 7. “N” is the number of terminal positions. 8. Terminal numbers are shown for reference only. 9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch) 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 6