stlc3075 STMicroelectronics, stlc3075 Datasheet
stlc3075
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stlc3075 Summary of contents
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... BCDIIIS 90V technology ■ -40 °C to +85°C operating range Description The STLC3075 is a SLIC device specifically designed for WLL (Wireless Local Loop), and ISDN terminal adaptors and VoIP applications. One distinctive characteristic of this device is its ability to operate with a single supply voltage (from +4 ...
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... Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Appendix A Measurement configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 A.1 STLC3075 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Appendix B Over voltage protection Appendix C Typical state diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 2/36 Power down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 High impedance feeding (HI- Active . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Ringing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Layout recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 External components list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 STLC3075 ...
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... STLC3075 1 Block diagram Figure 1. Block diagram GAIN SETTING Status and functions TX RX ZAC1 ZAC RS ZB CKTTX CTTX1 CTTX2 FTTX INPUT LOGIC AND DECODER SUPERVISION AC PROC TTX PROC REFERENCE RTTX CAC ILTF RD IREF RLIM RTH Block diagram DET OUTPUT LOGIC ...
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... Pin description Figure 2. Pin connection GAIN SET 6 N.C. 7 DET 8 CKTTX 9 CTTX1 CTTX2 10 RTTX 11 4/ STLC3075 ILTF RTH 30 IREF 29 RLIM 28 AGND 27 CVCC 26 VPOS 25 RSENSE 24 GATE 23 CLK D00TL488 ...
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... STLC3075 Table 1. Pin description N° Pin Gain SET 6, 22, 38, NC 39, 40 DET 8 CKTTX 9 CTTX1 10 CTTX2 11 RTTX 12 FTTX ZAC1 15 ZAC CAC CLK Function Control interface: input bit 0 Control interface: input bit 1 Control interface: input bit 2 Power down input ...
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... Reverse polarity transition time control. A proper capacitor connected between this pin and AGND is setting the reverse polarity transition time. This is the same transition time used to shape the ’trapezoidal ringing’ during ringing injection. Frame connection. Must be shorted to VBAT STLC3075 resistor should be connected SENSE ...
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... DC/DC converter controller to meet the WLL and ISDN-TA design requirements. The SLIC performs the standard feeding, signalling and transmission functions. STLC3075 can be set in three different operating modes via the D0, D1, D2 pins of the control logic interface (0 to 3.3V logic levels). The loop status is carried out on the DET pin (active low) ...
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... The power down mode can be selected in emergency condition when it is necessary to cut any current delivered to the line. The power down mode is also forced by STLC3075 in case of thermal overload (T In this case the device goes back to the previous status as soon as the junction temperature decrease under the hysteresis threshold ...
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... DC characteristics & supervision When this mode is selected the STLC3075 provides both DC feeding and AC transmission. The STLC3075 feeds the line with a constant current fixed by RLIM (20mA to 40mA range). The on-hook voltage is typically 40V allowing on-hook transmission; the self generated Vbat is -50V typical. ...
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... Table Active normal polarity 1 Active reverse polarity 0 Active TTX injection (N.P.) 1 Active TTX injection (R.P.) Figure 5 ). The transition time is controlled by an external capacitor GND 4V typ. TIP dV/dT set by CREV RING STLC3075 Impedance synthesis scale factor Operating mode 40V typ ON-HOOK ...
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... STLC3075 Metering pulse injection (TTX) The metering pulses circuit consists of a burst shaping generator that generates a square shaped wave and a low pass filter to reduce the harmonic distortion of the output signal. The metering pulse is obtained from two logic signals: ● CKTTX square wave at the TTX frequency (12 or 16KHz) that must be permanently applied to the CKTTX pin or at least for all the duration of the TTX pulse (including rising and decay phases) ...
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... Ringing When this mode is selected, the STLC3075 self generates a higher negative battery (-70V typ.) in order to allow a balanced ringing signal of typically 65V peak. In this condition both the DC and AC feedback loops are disabled and the SLIC line drivers operate as voltage buffers. The ring waveform is obtained by toggling the D2 control bit at the desired ring frequency. This bit in fact controls the line polarity (0=direct ...
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... RTH, RLIM, VF first recommendation the components CV, L, T1, D1, CV should be kept as close as possible to each other and isolated from the other components. Additional improvements can be obtained – by decoupling the center of the star from the analog ground of STLC3075 using small chokes – by adding a capacitor in the range of 100nF between V ...
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... RD = 100/I RTH 2K < RD < > 30 RLIM = 1300/Ilim 32.5k < RLIM < 65k RTH = 290/I TH 27k < RTH < 52k CREV = ((1/3750) · STLC3075 . In case of low LOTTX RTH in ring mode (max value BATR ’IPK’. POS Typ. value 100k 5% 26k 1% 1.5nF 10% 100V 4.12k 1%@ IRTH = 24mA 22 F 20% 15V @ ...
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... STLC3075 Table 6. External components for buckboost configuration (continued) Name Function Positive supply filter capacitor CV with low impedance for switch POS mode power supply Battery supply filter capacitor CV with low impedance for switch mode power supply CVB High frequency noise filter (3) CRD High frequency noise filter DC/DC converter switch P ch ...
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... RDS(ON) 0.05 , VDSS = 30V VDG=30V 6.5A Low threshold drive V > 350V, t 80ns r RR Flyback transformer 4W, turns ratio 1:16 for V range from 4.5V to POS 8.5V STLC3075 Typ. value 100k 5% 26k 1% 1.5nF 10% 100V 4.12k 1% @ IRTH = 24mA 22 F 20% 15V @ RD = 4.12k 50 1% 52. Ilim = 25mA 32. 9mA TH 22nF 10% 10V @ 12V/ms 100k ...
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... STLC3075 Table 8. External components for flyback configuration Name Function T1 DC/DC converter transformer Negative battery RF1 programming level Negative battery RF2 programming level 1. CV should be defined depending on the power supply current capability and maximum allowable ripple. POS 2. For low ripple application use 2x47m F in parallel. ...
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... RTTX = 50Re (Zlttx+2Rp) CTTX = 1/{50 2 fttx [- lm(Zlttx)]} 3· RLV = 63.3·10 · ·V LOTTX = (|Zlttx + 2Rp|/|Zlttx /(2 RLV) fttx RLV) STLC3075 Typ. value 25k 600 30k 600 30k 600 120pF 10% 10V @ 120pF 10% 10V 15k @ Zlttx = 200 real ...
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... STLC3075 Table 12. External components @gain set = 1 Name Function RS Protection resistance image ZAC Two wire AC impedance SLIC impedance balancing (1) ZA network Line impedance balancing (1) ZB network AC feedback loop CCOMP compensation Trans-hybrid Loss frequency CH compensation Pulse metering cancellation (2) RTTX resistor Pulse metering cancellation ...
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... CRD D04TL625A VPOS CVPOS CVCC VPOS GATE N-ch RSF RSENSE R CSF SENSE VBAT CVB RF1 VF CZ RF2 CZ CLK CLK RP TIP TIP RP RING RING CSVR CREV CREV CSVR RTH RLIM IREF RREF RLIM RTH RD RD CRD D04TL626 STLC3075 T1 Q1 SENSE ...
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... SYSTEM GND SUGGESTED GROUND LAY-OUT RX TX RRX RX TX AGND BGND RS RS ZAC CCOMP ZAC1 ZAC VDD GAIN SET RDD STLC3075 DET CKTTX RLV CTTX1 CS RLV CTTX2 FTTX RTTX CAC CFL RTTX AGND CTTX CAC BGND PGND Functional description ...
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... RTTX CAC ILTF AGND CAC BGND PGND VPOS CVCC CVPOS RSENSE CVCC VPOS RSENSE GATE VBAT CVB RF1 VF RF2 CLK CLK RP TIP TIP RP RING RING CSVR CREV CREV CSVR RTH RLIM IREF RREF RLIM RTH RD RD CRD D01TL494B STLC3075 Q1 P- ...
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... STLC3075 4 Electrical characteristics Test conditions: V External components as listed in the ’Typical values’ column of the above external components tables. Note: Testing of all parameters is performed at 25°C. Characterization as well as design rules used allow correlation of tested performances at other temperatures. All parameters listed here are met in the operating range of: -40 to +85°C. ...
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... L 300 to 3400Hz 20Log|VRX/VTX| Active N. P 600 (*) L At line terminals on ref. imped. Active N. P 600 (*) L Active N. P 600 (*) L 0dBm @ 1020Hz Active N. P 600 (*) L 0dBm @ 1020Hz Active N. P 600 (*) L STLC3075 Min. Typ. Max. Unit - ...
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... STLC3075 Table 16. Electrical characteristics (continued) Symbol Parameter G24f TX gain variation vs. frequency G24f RX gain variation vs. freq. Idle channel noise at line 0dB gain V2Wp set Idle channel noise at line 0dB gain V2Wp set Idle channel noise at line 0dB gain V4Wp set Idle channel noise at line 0dB gain ...
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... Active mode, RTH = 32.4k 1% (Prog. ITH = 9mA mode, RTH = 32.4k 1% (Prog. ITH = 9mA mode, RTH = 32.4k 1% (Prog. ITH = 9mA mode, RTH = 32.4k 1% (Prog. ITH = 9mA mode, RTH = 32.4k 1% (Prog. ITH = 9mA) RING RING Active mode Iol = 1mA STLC3075 Min. Typ. Max. Unit 10 10.5 ...
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... STLC3075 Table 16. Electrical characteristics (continued) Symbol Parameter PSRR and power consumption Power supply rejection V PSERRC 2W port Ivpos V supply current @ POS (1) Ipk Peak current limiting accuracy 1. Buck-Boost configuration Test condition Vripple = 100mVrms to POS 50 to 4000Hz HI-Z on-hook Active on-hook RING (line open) ...
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... TQFP4410 STLC3075 OUTLINE AND MECHANICAL DATA TQFP44 ( 1.4mm 0.10mm .004 Seating Plane C K 0076922 D ...
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... Date 04-Oct-2004 04-Nov-2004 09-Feb-2005 22-Apr-2005 14-Jul-2005 07-Feb-2007 09-Mar-2007 Part number E-STLC3075 Revision 1 Initial release Removed all max. values of the ‘Line voltage’ parameter on page 16/26. 2 Changed the unit from mA to% of the ‘Ilima’ parameter on page 16/26. Added pin applications and block diagram. ...
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... Measurement configurations Appendix A Measurement configurations A.1 STLC3075 test circuits Referring to the application diagram as shown on channel and using the typical values from configuration and configuration for each measurement. All measurements requiring DC current termination should be performed using ’Wandel & Glittering’ DC Loop Holding Circuit GH-1’ or equivalent. ...
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... Zin = 100K 200 to 6kHz 100 F POS W&G GH1 100 F 100mA Vl DC max 600ohm Zin = 100K 200 to 6kHz 100 F Measurement configurations TX Vtx STLC3075 application circuit RX TIP TX STLC3075 application circuit RX RING Vrx to 2W port PSSRC = 20Log|Vn/Vl | TIP TX STLC3075 application circuit RX RING VPOS ~ Vn 31/36 ...
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... F 300ohm 100 F 100mA DC max Impedance matching better than 0.1% Zin = 100K 200 to 6kHz Vcm 100 F 300ohm 100 F TIP STLC3075 Vlttx application 200ohm circuit RING CKTTX fttx (12 or 16kHz) STLC3075 TIP TX STLC3075 application Vl circuit RX RING TIP TX STLC3075 application circuit RX RING Vrx TX RX ...
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... STLC3075 Figure 21. V2Wp and W4Wp: Idle channel sophometric noise at line and TX. V2Wp = 20Log|Vl/0.774l|; V4Wp = 20Log|Vtx/0.774l | Vl psophometric filtered W&G GH1 TIP 100 F 100mA DC max 600ohm Zin = 100K 200 to 6kHz 100 F RING Measurement configurations TX Vtx STLC3075 psophometric filtered application circuit RX 33/36 ...
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... Figure 23. Standard over voltage protection configuration for K20 compliance 34/36 STPR120A BGND STLC3075 RP1 RP2 TIP RP1 RP2 RING VBAT STPR120A RP1 = 30ohm: RP2 =Fuse or PTC > 18ohm BGND STLC3075 RP1 RP2 TIP LCP1521S RP1 RP2 RING VBAT RP1 = 30ohm: RP2 =Fuse or PTC > 18ohm STLC3075 TIP RING TIP RING ...
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... STLC3075 Appendix C Typical state diagram Figure 24. Typical state diagram for STLC3075 operation Tj>Tth PD=1, D0=D1=0 On Hook Condition Note: all state transitions are under the microprocessor control. Normally used for On Hook Transmission PD=0, D0=D1=0 Power Down Ring Burst Ring Burst D0=1, D1=0, D2=0/1 On Hook Detection for T>Tref HI-Z Feeding Active ...
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