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L3000N STLC3040
THIRD GENERATION SUBSCRIBER LINE INTERFACE
PRODUCT PREVIEW
TWO CHIP SET + OVERVOLTAGE PROTECTION PROVIDE THE COMPLETE BORSCHT FUNCTIONS. PROGRAMMABLE DC FEEDING RESISTANCE AND CURRENT LIMITING 0 TO 70mA (1.1mA STEPS). PROGRAMMABLE VOLTAGE DROP ACCORDING TO TTX/ON HOOK TRANSMISSION NEEDS. INTEGRATED RING GENERATOR WITH ZERO CROSSING AND PROGRAMMABLE FREQ/LEVEL. SUPPORT NORMAL LOOP START LINES, GROUND START PABX LINES, EXTENDED LOOPS AND PAY-PHONES. GENERATION, SHAPING AND FILTERING OF 12KHz/16kHz PROGRAMMABLE LEVELS TELETAX METERING SIGNALS. REVERSE POLARITY HARD OR SOFT SWITCHING. SIGNALLING FUNCTIONS HOOK, GDKEY WITH PROGRAMMABLE PERSISTANCE CHECK. ON HOOK TRANSMISSION CAPABILITY. CCITT AND LSSGR CODEC/FILTER STD. A/ LAW. 2 WIRE IMPEDANCE SYNTHESIS SOFTWARE PROGRAMMABLE. HYBRID FUNCTION SOFTWARE PROGRAMMABLE. PROGRAMMABLE GAIN CONTROL AND FREQUENCY RESPONSE CORRECTION. SUPERVISION AND TEST OF LINE CONDITIONS, LEAKAGE, CAPACITANCE AND CIRCUIT SIGNALLING TEST FOR TTX AND RINGING. TEST TONE GENERATION FOR CIRCUIT TEST, LOOPBACKS POSSIBILITY. GCI COMPATIBLE CONTROL INTERFACE. SELECTABLE 2/4MHZ BACKPLANE CLOCK. MINIMUM EXTERNAL COMPONENTS COUNT. ADVANCED 12V BJT-5V CMOS 0.8mTECHNOLOGY GUARANTEES RELIABILITY AND LOW POWER CONSUMPTION (50MW TOTAL IN ON-HOOK CONDITION). INTEGRATED THERMAL PROTECTION WITH THERMAL OVERLOAD INDICATION.
January 1995
PLCC44 ORDERING NUMBER: STLC3040
PowerSO-20 ORDERING NUMBER: L3000NSO
DESCRIPTION The subscriber line interface kit (L3000N/STLC3040) is a set of solid state devices designed to integrate all the classical BORSCHT functions (overvoltage protection external) and several additional features needed to interface a telephone line. The L3000N device is fabricated in B140II (140V Bipolar) technology and is basically an analog front end that drives the line via two output buffers properly amplifying signal applied at its input by the STLC3040. At the same time it provides back to the STLC3040 an accurate image of the loop current. The STLC3040 device is fabricated in BiCMOS (12V bipolar / 5V CMOS) technology. This device interfaces the L3000N via a dedicated interface and the C.O. backplane via a GCI compatible interface. The STLC3040 processes the line current image provided by the L3000N generating the transmit signal and the proper voltage signal that will be sent back to the L3000N in order to synthetize the desired AC/DC impedances on the 2-wire side. At the same time also the received signal on the digital side is transferred into the line.
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This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
L3000N - STLC3040
The signal processing inside the STLC3040 is both analog and digital merging the best available analog and digital processing performances of the BiCMOS technology. The L3000N/STLC3040 kit is fully programmable and needs only 5 ext. resistors (including the two protection resistors) and 3 capacitors. These components are always the same; all the parameters related to different applications are software programmed. Considering the DC characteristic, by proper programming it is possible to select several limiting currents (from 0 to 70mA with 1.1mA steps, different DC feeding resistance (from 0 to 2 x 400 with 100 steps) and different drop voltages (on-hook transmission, metering pulse injection). Considering AC performances all possible 2-wire impedances are software programmable, the same for the two to four wire conversion, where all the possible balance impedances can be software programmed. Both Tx and Rx gain are programmable (12 dB range, 0.1dB step) with proper frequency equalization that will guarantee a complete flat response in the speech band. Ringing signal is also generated on chip with programmable frequency and amplitude. For this purpose the L3000N device in addition to the negative battery (VB-) requires also a positive one (VB+). VB- can vary between -70V to -24V depending on the application. The VB+ is usually selected in order to have a total battery voltage |VB+|+|VB-| = 120V. Ring injection and disconnection is always performed in correspondance of zero crossing. In addition when ring trip is detected the ring signal is automatically disconnected again at the first zero crossing. The kit is also able to generate metering pulse signals (12 or 16kHz) with programmable amplitudes up to 5Vrms. Polarity reversal is supported. Finally several testing features are provided by the kit. This means that the kit is able both to test itself and also the line parameters (leakage, capacitance ..) saving the testing relays and the equipment needed to perform the test.
PIN CONNECTIONS (Top views)
6 IO1 IO2 C1 C2 VL1 VL2 SIR0 CAP IL RAC STRO 7 8 9 10 11 12 13 14 15 16 17
5
4
3
2
1 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 O1 I1 SIR2 MR IDH VDD VSS IDM IDL SIR1 EXT
SEL24
DGND
STR3
DCL
FSC
VCC
TS0
TS1
TS2
DU
DD
VBVBIM VIN VDD BGND VB+ MNT TIP N.C. VB-
10 9 8 7 6 5 4 3 2 1
D94TL125
11 12 13 14 15 16 17 18 19 20
VBAGND REF C1 C2 IT IL N.C. RING VB-
18 19 20 21 22 23 24 25 26 27 28
STR1 IT ACDC CAC RDC REF STR2 VBIM VOUT AGND PDO
D94TL161
PowerSO-20 PLCC44
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L3000N - STLC3040
ABSOLUTE MAXIMUM RATINGS
Symbol VBVB+ |VB-|+|VB+| VDD VSS |Vagnd-Vbgnd| Tj Tstg Negative Battery Voltage Positive Battery Voltage Total Battery Voltage Positive Supply Voltage Negative Supply Voltage Maximum Voltage Between AGND/BGND Maximum Junction Temperature Storage Temperature Parameter Value -80 +80 140 +5.5 -5.5 5 150 -55 to +150 Unit V V V V V V C C
THERMAL DATA
Symbol L3000N RTh j-case RTh j-amb STLC3040 RTh j-amb Thermal Resistance Junction to Case Thermal Resistance Junction to Ambient Thermal Resistance Junction to Ambient Typ. Max. Max. 2 60 80 C/W C/W C/W Parameter Value Unit
OPERATING RANGE (Refer to the test circuit, unless otherwise specified.)
Symbol Toper VBVB+ |VB-|+|VB+| VDD VSS Imax Parameter Operating Temperature Range Negative Battery Voltage Positive Battery Voltage Total Battery Voltage Positive Supply Voltage Negative Supply Voltage Total Line Current (IL+IT) +4.5 -5.5 Test Condition Min. 0 -70 0 -48 72 120 Typ. Max. 70 -24 75 130 +5.5 -4.5 85 Unit C V V V V V mA
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L3000N - STLC3040
PIN DESCRIPTION (L3000N)
PowerSO-20 N 3 4 5 6 7 8 9 Name TIP MNT VB+ BGND VDD VIN VBIM Description A line termination output with current capability up to 100mA (Ia is the current sourced from this pin). Positive Supply Voltage Monitor. Positive Battery Supply Voltage. Battery ground relative to the VB+ and the VB- supply voltages. It is also the reference ground for TIP and RING signals. Positive Power Supply +5V. 2 wire unbalanced voltage input. Output voltage without current capability, with the following functions: - give an image of the total battery voltage scaled by 40 to the low voltage part. - filter by an external capacitor the noise on VB+ and VB-. Negative Battery Supply Voltage. Analog Ground. All input signals and the VDD supply voltage must be referred to this pin. Voltage reference output with very low temperature coefficient. The connected resistor sets Internal circuit bias current. Digital signal input (3 levels) that defines device status with pin 12. In thermal overload condition a 240mA typical current is sunk by this pin. Digital signal input (3 levels) that defines device status with pin 11. High precision scaled transversal line current signal. IT = Ia + Ib
1,10,11,20 12 13 14 15 16
VBAGND REF C1 C2 IT
100
17
IL
Scaled longitudinal line current signal.
IL =
Ia - Ib
100
19 2, 18
RING N.C.
B line termination output with current capability up to 100mA (Ib is the current sunk into this pin). Not connected.
Notes: 1) All information relative to the PowerSO-20 package option should be considered as advanced information on a new product now in developement or undergoing evaluation. Details are subject to change without notice.
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L3000N - STLC3040
PIN DESCRIPTION (STLC3040)
PLCC44 No 1 2 3 4 5 6 7,8 9 10 11,12 13 14 15 Symbol DGND VCC FSC DCL DD DU IO1,IO2 C1 C2 VL1,VL2 SIR0 CAP IL Type ID ID ID ID ID OD I/OD OD OD IA I/OD I/OA IA Description Digital Ground. +5V Digital Supply. Frame sinc. 8KHz GCI Interface. Master data Clock GCI Interface. Data Down link GCI Interface Data Up link GCI Interface Programmable I/O GCI controlled State control signal 1. Combination of C1 and C2 define L3000N operating mode. State control signal 2. Comparator inputs. These are inputs of the comparator that senses the line voltage in Loop Open Mode allowing OFF/Hook detection in this mode. Dedicated, leave open. Reversal. Proper Capacitor should be connected to this pin when soft battery reversal is needed. Ia - Ib Longitudinal Line Current input IL =
100
16 17,18 19
RAC STR0,STR1 IT
I/OA I/OD IA
AC Synthesis Reference Resistor. Dedicated, leave open. Transversal Line Current input Ia + Ib IT =
100
20 21 22 23 24 25 26 27 28 29 30 31,32 33 34 35 36 37 38 39 40 41,42,43 44
ACDC CAC RDC REF STR2 VBIM VOUT AGND PDO EXT SIR1 IDL,IDM VS VDD IDH MR SIR2 I1 O1 SEL24 TS2,TS1,TS0 STR3
I/OA I/OA I/OA I/OA I/OD IA OA IA OA ID I/OD IA IA IA IA ID I/OD ID OD ID ID I/OD
AC/DC Line split. Scaled line current output, DC feedback input. Split Capacitor. AC scaled line current input. DC Synthesis Reference Resistor. Reference voltage output. A resistor connected to this pin is setting the internal reference current. Dedicated, leave open Battery image monitor. Two wire unbalanced output feeding the line voltage signals (DC, AC, RING, TTX) scaled by 40. Analog Ground. Power Down output. Proper bias current is provided to L3000N by this pin. When the current is 0 the L3000N goes in Power Down (high impedance). External Ring Sync. Input. Dedicated, leave open. Line-card Identification, least valued bit. -5V Analog Supply. +5V Analog Supply. Line-card Id, serial ID signature input. Master reset Input. When connected to VCC the STLC3040 is forced in power down, all internal registers resetted. Dedicated, leave open. Digital input read via GCI Digital output written via GCI. Select Clock Frequency for GCI Interface 2MHz/4MHz, not affecting the data rate. GCI Select Time Slot Identifier Pins. Dedicated, leave open.
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L3000N - STLC3040
PLCC44 PACKAGE MECHANICAL DATA
DIM. MIN. A B C D d1 d2 E e e3 F F1 G M M1 1.16 1.14 14.99 1.27 12.7 0.46 0.71 0.101 0.046 0.045 17.4 16.51 3.65 4.2 2.59 0.68 16 0.590 0.050 0.500 0.018 0.028 0.004 mm TYP. MAX. 17.65 16.65 3.7 4.57 2.74 MIN. 0.685 0.650 0.144 0.165 0.102 0.027 0.630 inch TYP. MAX. 0.695 0.656 0.146 0.180 0.108
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L3000N - STLC3040
PowerSO-20 PACKAGE MECHANICAL DATA
DIM. A a1 a2 a3 b c D (1) E e e3 E1 (1) E2 G h L N S T 10.0 0.80 0 10.90 0 0.40 0.23 15.80 13.90 1.27 11.43 11.10 2.90 0.10 1.10 1.10 8 (max.) 0.3937 0.0314 10 (max.) 0 0.4291 0.10 MIN. mm TYP. MAX. 3.60 0.30 3.30 0.10 0.53 0.32 16.00 14.50 0 0.0157 0.009 0.6220 0.5472 0.050 0.450 0.437 0.1141 0.0039 0.0433 0.0433 0.0039 MIN. inch TYP. MAX. 0.1417 0.0118 0.1299 0.0039 0.0209 0.0126 0.6299 0.570
(1) "D and E1" do not include mold flash or protrusions - Mold flash or protrusions shall not exceed 0.15mm (0.006")
N
N a2 b e e3 A
R
c DETAIL B a1 E
DETAIL A D
lead
DETAIL A
20
11
a3 DETAIL B E2 T E1
Gage Plane 0.35
slug
-C-
S
L
SEATING PLANE G C
(COPLANARITY)
1
10
PSO20MEC
h x 45
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L3000N - STLC3040
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. (c) 1995 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.
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