hc5517b Intersil Corporation, hc5517b Datasheet
hc5517b
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hc5517b Summary of contents
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... Data Sheet Low Cost 3 REN Ringing SLIC for ISDN Modem/TA and WL The HC5517B low cost, 3 REN ringing SLIC is designed to accommodate a wide variety of short loop applications and provides the same degree of flexibility as the high performance HC5517. The flexible features include open circuit tip to ring DC voltages, user defined ringing waveforms, ring trip detection thresholds, and loop current limits that can be tailored for many applications ...
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... CC BAT Relay Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +15V Operating Conditions Temperature Range HC5517BCM, HC5517BCB . . . . . . . . . . . . . . . . . . . . 0 Relay Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V to +12V Positive Power Supply ( + Negative Power Supply (V ) ...
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... TIP to Ground (Note 3) RING to Ground TIP and RING to Ground (Note 3) Switch Hook Detection Threshold Ring Trip Comparator Voltage Threshold Thermal ALARM Output (Note 3) Dial Pulse Distortion (Note 3) 63 HC5517B = -24V +5V, AGND = BGND = 0V. All AC Parameters are specified BAT CC (Continued) ...
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... For transhybrid circuit as shown in Figure 3. 5. Application limitation based on maximum switch hook detect limit and metallic currents. Not a part limitation. 64 HC5517B = -24V +5V, AGND = BGND = 0V. All AC Parameters are specified ...
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... RD Active (unbalanced ringing Normal Loop feed The truth table for the internal logic of the HC5517B is provided in the above table. This family of ringing SLICs can be config- ured to support traditional unbalanced ringing and through SLIC balanced ringing. The device operating states used by through SLIC ringing applications are loop power denial and normal feed ...
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... The crest factor of the HC5517B ringing wave- form is independent of the ringing load (REN) and the loop length. Another robust feature of the HC5517B ringing SLIC is the ring trip detector circuit. The suggested values for the ring trip detector circuit cover quite a large range of applications. ...
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... The SLIC control pin F1 should always be a logic high during ringing. The control pin F0 will either be a constant logic high (two detector interface logic low (single detector interface). Figure 2 shows the control interface for the dual detector interface and the single detector interface. 67 HC5517B HC5517B CF RMS 1.25 45.9 1.30 44.1 1 ...
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... OUT1 HC5517B FIGURE 4. SINGLE SUPPLY CODEC INTERFACE 68 HC5517B The CODEC signal names may vary from different manufac- turers, but the function provided will be the same. The DC reference from the CODEC is used to bias the analog sig- nals between +5V and ground. The capacitors are required so that the DC gain is unity for proper biasing from the CODEC reference ...
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... V The negative battery source, all loop current flows into this terminal. BAT 28 RTI Ring Trip Input - This pin is connected to the external negative peak detector output for ring trip detection. 69 HC5517B DESCRIPTION /2 reference. BAT to set the short loop current limiting conditions. TX ...
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... Pinouts HC5517B (PLCC) TOP VIEW SHD 7 RTD 8 TST 9 ALM LIMIT Trapezoidal Ringing Application Circuit TIP RING BAT TST FIGURE 5. TRAPEZOIDAL RINGING APPLICATION CIRCUIT 70 HC5517B RING BGND RDO 21 RDI ...
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... HC5517B Trapezoidal Ringing Application Circuit Parts List COMPONENT VALUE TOLERANCE U1 - Ringing SLIC HC5517B 49 56.2k ZO IL1 R 49.9k RT1 R 1.5M RT2 R 51.1k RT3 R 45.3k RF All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with- out 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 ...