l3037 STMicroelectronics, l3037 Datasheet
l3037
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l3037 Summary of contents
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... PQFP44) INTEGRATED THERMAL PROTECTION PIN TO PIN COMPATIBLE WITH L3035/36 DESCRIPTION The L3037 subscriber line interface circuit is a bi- polar device in 70V technology developed for cen- tral office / loop carrier and private applications. The L3037 is pin to pin and function compatible with L3035/36. One particular pin (reserved in L3035/36) is now used for reverse polarity transi- tion time programming ...
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... L3037 L3037 PIN FUNCTIONALITY (PLCC44) No. Name 1 V Supply input (+5V Analog output (current source) LTF 3 RDC Analog input (current input Analog input (voltage input) 5 BASE Analog output (voltage source) 6 BGND Ground input (0V) 7 VREG Supply input (VREG) 8 STIP Analog input (voltage input) ...
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... Absolute Maximum Ratings can be exceeded DD SS bat and One diode can be shared between all the SLICs of the same line card. SS - +4.5 to +5.5 -5.5 to -4.5 - PLCC44 Max. 45 L3037 TTXIN 32 ZAC N. N.C. 26 N.C. ...
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... L3037 PIN DESCRIPTION Unless otherwise specified all the diagrams in this datasheet refers to the PLCC44 Pin Connection. PQFP44 PLCC44 Pin No. No Positive Power Supply (+5V Transversal Line Current Image ((I LTF 41 3 RDC DC feedback input (the RDC resistor is connected from this node to I ...
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... PTC resistors. An integrated thermal protection circuit forces the L3037 in POWER DOWN (PD) mode when the junction temperature exceeds 150 C Typ. The L3037 is specified over - +85 C am- bient temperature range. The L3037 package is a surface mount PLCC44 or PQFP44. FUNCTIONAL DESCRIPTION ...
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... TS5070FN) which is able to perform the two to four wire conversion, the two impedances ZA and ZB can be removed and the ZB pin con- nected to GND. The -6dB TX gain of the L3037 al- lows the echo signal to remain always within the COMBOII Hybrid balance filter dynamic range. ...
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... When the ringing signal phase is provided at the RGIN pin, the relay command is also synchroni- zed with the ringing signal zero crossing. The TIP and RING termination of the L3037 are senses the line current which is then integrated on the CRT capacitor. TIP pin voltage is fixed at – 2.5V, RING pin volt- age is fixed ...
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... L3037 EXTERNAL COMPONENTS Name Function CVB Battery Filter CVDD Positive Supply Filter CVSS Negative Supply Filter RREF Internal Current Reference CSVR Battery Ripple Rejection CRT Ring Trip & Ground-key Capacitor RDC DC Feeding Resistance CAC AC/DC Splitter RS Protection Resistor Image ZAC 2 Wire AC Impedance ...
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... Figure 3: Typical Application Circuit including all features. Figure 4: Typical Application circuit with minimum components count (No Rev. polarity NoTTX/No zero crossing sync/no PTC mismatch compensation). L3037 680nF 680nF 9/22 ...
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... L3037 In case of U.S. application based on L3035 the external components can be calculated suppo- sing: - Rfeed = 400 EXTERNAL COMPONENTS (for US. Application) Name Function CVB Battery Filter CVDD Positive Supply Filter CVSS Negative Supply Filter RREF Internal Current Reference CSVR Battery Ripple Rejection CRT Ring Trip & Ground-key Capacitor ...
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... C. A Test Condition Min. Typ. Rp +PTC = 50 4.1 300Hz to 3.4KHz (*) at SLIC terminals per wire standby per wire (on HOOK) 17 active per wire (on HOOK) 17 active per wire off HOOK 75-I T (IT = Transversal current) 1.8 -350 LIM L3037 = 5V; CC Max. Unit Vpk 10 mApk mApk mApk Vpk +350 mV 10 11/22 ...
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... Return Loss (2-wire) Thl Transhibrid Loss Longitudinal balance (CCITT Rec.0.121) L-T Longit to Transversal L-4 Long Sign Rejection T-L Transvers to Longit 4-L Long Sign Generation Selected L3037 Longitudinal balance (IEEE Std 455-1976) L – T Longitudinal to Transversal L – 4 Longitudinal Signal Rejection 12/22 Test Condition Min. Typ. 100 3.2 100 ...
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... GIN R = 1.8k 25Hz L RING TIP or RING to BGND TIP or RING to V bat constant region 34 25mA, 44mA, 55mA -8 I lim 100 RING to GND L3037 Max. Unit -5.82 dB 0.2 dB 0.1 dB 0 0 -46 dB -46 dB -78 -72 dBmP -82 -76 ...
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... Off-hook Current Threshold det I Off-hook Current Threshold det Hys Off-hook / On-hook Hysteresys Td Dialling Distortion GROUND KEY DETECTOR I Ground Key Current Threshold POWER DISSIPATION ON L3037 Power Down d P Stand- Active 800 d feed I = 25mA LIM I = 44mA LIM I = 55mA ...
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... AGND SS PSRR V ref to AGND bat PSRR BGND ref to AGND RELAY DRIVER i Current Capability RD V Voltage Drop i Off Leakage Current LK Figure 6: Test Circuit Test Condition Min. = 100mVrms) 50Hz to 3.4KHz 40mA RD L3037 Typ. Max. Unit 1.25 V 100 A 680nF 15/22 ...
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... L3037 Figure 7: Typical Application with 2nd Generation COMBO (600 Application) 16/22 ...
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... Figure 8: Typical Application with 1st Generation COMBO (600 Application) L3037 17/22 ...
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... L3037 Figure 9: Typical Application with 2nd Generation COMBO (U.S. Application) 18/22 ...
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... Figure 10: Typical application with 1st Generation COMBO (U.S. Application) L3037 19/22 ...
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... L3037 PLCC44 PACKAGE MECHANICAL DATA mm DIM. MIN. TYP. A 17.4 B 16.51 C 3.65 D 4.2 d1 2.59 d2 0.68 E 14.99 e 1.27 e3 12.7 F 0. 1.16 M1 1.14 20/22 inch MAX. MIN. TYP. 17.65 0.685 16.65 0.650 3.7 0.144 4.57 0.165 2.74 0.102 0.027 16 0.590 0.050 0.500 0.018 0.028 0.101 0.046 0.045 MAX. 0.695 0.656 0.146 0.180 0.108 0.630 0.004 ...
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... MAX. MIN. 2.45 0.010 2.10 0.077 0.079 0.45 0.012 0.23 0.005 13.45 0.51 10.10 0.390 0.394 0.315 0.031 13.45 0.510 0.520 10.10 0.390 0.394 0.315 0.95 0.026 0.031 0.063 0 (min.), 7 (max 0.10mm .004 Seating Plane PQFP44 L3037 inch TYP. MAX. 0.096 0.083 0.018 0.009 0.52 0.53 0.398 0.530 0.398 0.037 21/22 ...
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... L3037 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Mi croelectronics assumes no responsibility for the consequences of use of such information nor for any infringement 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 SGS-THOMSON Microelectronics. Specification mentioned in this publication are subject to change without notice ...