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STLC30R80 Datasheet(PDF) 3 Page - STMicroelectronics |
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STLC30R80 Datasheet(HTML) 3 Page - STMicroelectronics |
3 / 13 page PIN DESCRIPTION Pins Name Description 1 CSOUT Chip-Select for output control bits DET and GDK . Active Low. (*) 2 CSIN Chip-Select for input control bits latches D0 D1 D2 R0 R1 . Active Low. (*) 3 D0 Control Interface input bit 0. (*) 4 D1 Control Interface input bit 1. (*) 5 D2 Control Interface input bit 2. (*) 6 N.C. Not connected 7 N.C. Not connected 8 RES Reset Input; active low. After activation the SLIC is put in Power Down state 9VDD Control interface Power Supply. VDD = 3.3V or VDD = VCC. 10 VCC Positive Power Supply (+5V). 11 CRT Ring-Trip time constant capacitor. 12 N.C. Not connected 13 N.C. Not connected 14 SW Internal switch/limiting current programming pin. 15 AGND Analog Ground 16 VBAT Negative Battery Supply. 17 TX 4 wires output stage (Transmitting Port). 18 ZB Cancelling input of Balance Network for 2 to 4 wires conversion. 19 RS Protection resistors image. The image resistor is connected between this node and ZAC. 20 ZAC AC impedance synthesis. 21 ZAC1 RX buffer output/ AC impedance is connected between this node and ZAC. 22 RX 4 wires input stage (Receiving Port). A 100K external resistor must be connected to AGND to bias the input stage. 23 TTXIN Metering Signal Input (AC) and Line Voltage Drop Programming (DC). If not used must be connectd to AGND. 24 CAC AC feedback input/ AC-DC split capacitor is connected between this node and ILTF. 25 RDC DC current feedback input. The RDC resistor is connected between this node and ILTF. 26 ILTF Transversal Line Current Image. 27 RT2 Input pin to sense ringing current , for Ring-Trip detection. 28 RT1 Input pin to sense ringing current , for Ring-Trip detection. 29 AGND Analog ground. 30 RTH Off-Hook threshold programming pin. 31 RLIM Limiting current programming pin. 32 IREF Voltage reference output to generate internal reference current. 33 CREV Reverse polarity transition time programming. 34 CSVR Battery supply filter capacitor. 35 BASE Driver of the external transistor. Connected to the base. 36 VREG Regulated voltage. Provides the negative supply to the power line drivers. It is connected to the emitter of the external transistor. 37 BGND Battery ground. 38 RING B wire termination output. IB is the current sunk into this pin. 39 TIP A wire termination output. IA is the current sourced from this pin. 40 AGND Analog ground. STLC30R80 3/13 |
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Similar Description - STLC30R80 |
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