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HC-5504B1 Datasheet(PDF) 9 Page - Intersil Corporation |
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HC-5504B1 Datasheet(HTML) 9 Page - Intersil Corporation |
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9 / 9 page  60 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; 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 web site http://www.intersil.com Applications Diagram FIGURE 1. TYPICAL LINE CIRCUIT APPLICATION WITH THE MONOLITHIC SLIC Typical Component Values C2 = 0.15µF, 10V C3 = 0.3µF, 30V C4 = 0.5µF to 1.0µF, 10%, 20V (Should be nonpolarized) C5 = 0.5µF, 20V C6 = C7 = 0.5µF (10% Match Required) (Note 6) C8 = 0.01µF, 100V C9 = 0.01µF, 20V, ±20% R1 =R2 =R3 = 100kΩ (0.1% Match Required, 1% absolute value) ZB = 0 for 600Ω Terminations (Note 6). RB1 =RB2 =RB3 =RB4 = 150Ω (0.1% Match Required, 1% absolute value). RS1 = RS2 = 1kΩ, typically. CS1 =CS2 = 0.1µF, 200V typically, depending on VRING and line length. Z1 = 150V to 200V transient protection. PTC used as ring generator ballast. NOTES: 5. Secondary protection diode bridge recommended is a 2A, 200V type. 6. To obtain the specified transhybrid loss it is necessary for the three legs of the balance network, C6-R1 and R2 and C7-ZB-R3, to match in im- pedance to within 0.3%. Thus, if C6 and C7 are 1µF each, a 20% match is adequate. It should be noted that the transmit output to C6 sees a - 22V step when the loop is closed. Too large a value for C6 may produce an excessively long transient at the op amp output to the PCM Fil- ter/CODEC. A 0.5 µF and 100kΩ gives a time constant of 50ms. The uncommitted op amp output is internally clamped to stay within ±5.5V and also has current limiting protection. 7. All grounds (AG, BG, and DG) must be applied before VB+orVB-. 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. 8. Application shows Ring Injected Ringing, Balanced or Tip injected configuration may be used. RB4 K1B K1A RING RING FEED RING FEED SENSE TIP VB - SLIC HC-5504B1 RS1 RB2 RB1 PTC Z1 -48V 150VPEAK (MAX) RING GENERATOR RING RB3 RS2 CS2 SUBSCRIBER LOOP -48V SYSTEM CONTROLLER K1 8 1 9 10 3 2 TIP FEED TIP RD OP AMP RX TX +IN -IN OUT C2 C3 C4 NEG. BATT. BATT. GND. DIG. GND. ANA. GND. VB+ POWER DENIAL SWITCH HOOK DETECT GROUND KEY DETECT RING SYNC RING CMD 15 13 14 7 16 11 12 6 23 C9 4 VB + C8 C4 C3 C2 + + 21 24 20 19 18 17 5 22 C6 R1 R2 C7 C5 R3 BALANCE NETWORK PCM FILTER/ CODEC SWITCHING NETWORK ZB 5V TO 12V PRIMARY PROTEC- TION CS1 (NOTE 5) PIN NUMBERS GIVEN FOR DIP/SOIC PACKAGE. HC-5504B1 |
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