STLC3065Q STMicroelectronics, STLC3065Q Datasheet
STLC3065Q
Specifications of STLC3065Q
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STLC3065Q Summary of contents
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... OUTPUT LOGIC Status and functions LINE SUPERVISION DRIVER AC PROC Vcc TTX PROC REFERENCE Vss Agnd RTTX CAC ILTF RD IREF RLIM RTH STLC3065 TQFP44 ORDERING NUMBERS: STLC3065Q STLC3065QTR DET2 BGND TIP1 LINE TIP2 SWITCH RING1 RING2 CREV DC PROC CSVR CLK RSENSE DC/DC GATE CONV ...
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STLC3065 DESCRIPTION (continued) MOS switch. The self generated battery voltage tracks the line resistance. In this way the power dissipation in- side the device is low enough to allow the use of small SMD package (TQFP44). Other useful characteristics for ...
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OPERATING RANGE Symbol V Positive Supply Voltage pos A/BGND AGND to BGND V Pin D0, D1, D2, DET, DET1, DET2, CKTTX, P dig T Ambient Operating Temperature Range op (1) V Self Generated Battery Voltage bat (1) Vbat is self ...
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... The three possible SLIC core operating modes are: Power Down (PWD) 4/27 Function Active Ringing Table 1 shows how to set the different SLIC core operating modes. Table 1. SLIC core operating modes Operating Mode 0 0 ...
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... DC/DC converter 300 A controller a fixed DC current (programmable via RLIM) opti- mising in this way the power dissipation. The Dual Port allows to connect the SLIC core to one of the two possible 2W ports (TIP1/RING1, TIP2/RING2). Dual port concept One switches array integrated in STLC3065 al- lows to connect the TIP and RING output of the SLIC core to one of the two 2W (TIP1/RING1 or TIP2/RING2) ...
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STLC3065 Figure 1. Dual Port Concept. Tip Line Driver Ring R1 = 1500 ohm Table 2. Dual Port control ...
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... VBAT by a 1500 to detect the off-hook . "To Buffer": the TIP(n) wire and RING(n) wire are connected to the SLIC core line driver and the off- hook detection is performed using the SLIC core supervision circuit that drives the DET output. "300 A bias": ...
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... This can be pre- vented via a proper software control that should avoid to keep as a steady condition both lines in off-hook and HI-Z mode. Typical operation is to set the SLIC core in active mode as soon as off- hook is detected. Figure 2. DC characteristic in HI-Z mode. IL ...
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... The balance imped- ance can be real or complex, the proper can- cellation is obtained by means of two external impedance ZA and ZB. Once in Active mode (D1=1) the SLIC core can operate in different states setting properly D0 and D2 control bits (see also Table3 ...
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... The SLIC core is set in ring mode via the control inputs D0 and D1 set respectively to 0 and 1. In this condition both the DC and AC feedback loop are disabled and the SLIC core line drivers operate as voltage buffers ...
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Depending on the P1,P2 control bits the ring waveform can be applied to both 2W ports (TIP1/RING1 and TIP2/RING2 one of the two (see also table2). The ring trip detection is performed sensing the variation of the AC ...
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... External Components List In order to properly define the external compo- nents value the following system parameters have to be defined: The AC input impedance shown by the SLIC at the line terminals "Zs" to which the return loss measurement is referred. It can be real (typ. 600 ) or complex. The AC balance impedance the equiva- lent impedance of the line " ...
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... Ring Trip threshold setting resistor CAC AC/DC split capacitance RP Line protection resistor RS Protection and series switches resistance image ZAC Two wire AC impedance ZA (1) SLIC impedance balancing network ZB (1) Line impedance balancing network CCOMP AC feedback loop compensation CH Trans-Hybrid Loss frequency compensation RLIM Current limiting programming ...
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STLC3065 EXTERNAL COMPONENTS (continued) Name Function CRD (6) High frequency noise filter Q1 DC/DC converter switch P ch. MOS transistor D1 DC/DC converter series diode RSENSE DC/DC converter peak current limiting L (8) DC/DC converter inductor CF1 DC/DC converter feedback ...
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Figure 8. Application diagram. RS CCOMP ZAC VDD CH RDD DET DET1 DET2 CONTROL D0 INTERFACE TTX CLOCK RLV RLV CFL SUPPLY GND SUGGESTED GROUND LAY-OUT CVCC AGND BGND RS ZAC ZAC1 ...
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STLC3065 ELECTRICAL CHARACTERISTICS Test conditions 6.0V, AGND = BGND, Normal Polarity, T pos External components as listed in the "Typical Values" column of EXTERNAL COMPONENTS Table. Note: Testing of all parameter is performed at 25°C. Characterisation as well ...
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ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter G42f RX gain variation vs. freq. V2Wp Idle channel noise at line V2Wp Idle channel noise at line V4Wp Idle channel noise at line V4Wp Idle channel noise at line Thd Total Harmonic Distortion VTTX ...
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STLC3065 ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter IONTHI On/hook current threshold RONTHI On/hook loop resistance threshold Irt Ring Trip detector threshold range Irta Ring Trip detector threshold accuracy Trtd Ring trip detection time Td Dialling distortion Rlrt (1) Loop resistance ThAl ...
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STLC3065 Test Circuits Referring to the application diagram shown in fig the STLC3065 datasheet and using as external components the Typ. Values specified in the "External Components" Table (page 16) find below the proper configuration for each measurement. ...
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STLC3065 Figure A3. G24 Transmit Gain G24 = 20Log|2Vtx/E| 600ohm E Figure A4. G42 Receive Gain G42 = 20Log|Vl/Vrx| Vl 600ohm Figure A5. PSRRC Power supply rejection Vpos to 2W port PSSRC = 20Log|Vn/Vl| Vl 600ohm 20/27 W&G GH1 TIP1/TIP2 ...
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Figure A6. L/T Longitudinal to Transversal Conversion L/T = 20Log|Vcm/Vl| 300ohm Impedance matching better than 0.1% Vcm 300ohm Figure A7. T/L Transversal to Longitudinal Conversion T/L = 20Log|Vrx/Vcm| 300ohm Vcm 600ohm 300ohm Figure A8. VTTX Metering Pulse level on line ...
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STLC3065 Figure A9. V2Wp and W4Wp: Idle channel psophometric noise at line and TX. V2Wp = 20Log|Vl/0.774l|; V4Wp = 20Log|Vtx/0.774l| 600ohm Vl psophometric filtered Figure A10. AIS Isolation between 2 wire ports AIS = 20Log|Vais/Vl| 600ohm Vl Vais 22/27 W&G ...
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Figure A11. Vring, Vlis: Ring Voltage and port isolation Vring (true rms meter) Vlis (psophometric meter) TIP1/TIP2 STLC3065 1 F application circuit 1800ohm RING1/RING2 100 F TIP2/TIP1 600ohm 100 F RING2/RING1 D2 STLC3065 TX RX fring (25Hz) 23/27 ...
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STLC3065 STLC3065 OVERVOLTAGE PROTECTION Figure B1. Simplified configuration for indoor overvoltage protection STLC3065 Figure B2. Standard overloltage protection configuration for k20 compliance NOTE: RP2 should guarantee Ipeak < 10A: otherwise two LCP1511 maybe used 24/27 APPENDIX B BGND RP1 TIP1 ...
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Figure C1. Typical state diagram for the STLC3065 operation P1=0, P2=1 Tj>Tth D0=D1=P1=P2=0 Power Down, Power Down P1=P2=1 HI-Z Feeding, P1=1 HI-Z Feeding P2=0 Line1, HI-Z Feeding, Off Hook Power Down Line1On Hook, P1=1, P2=0 Line1Off Hook Ring Burst Line ...
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STLC3065 26/27 ...
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... STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. ...