TEA1068T Philips Semiconductors, TEA1068T Datasheet
TEA1068T
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TEA1068T Summary of contents
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DATA SHEET TEA1068 Versatile telephone transmission circuit with dialler interface Product specification Supersedes data of June 1990 File under Integrated Circuits, IC03 INTEGRATED CIRCUITS 1996 Apr 23 ...
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... ORDERING INFORMATION TYPE NUMBER NAME TEA1068 DIP18 TEA1068T SO20 1996 Apr 23 Large gain setting range on microphone and earpiece amplifiers Line current-dependent line loss compensation facility for microphone and earpiece amplifiers Gain control adaptable to exchange supply DC line voltage adjustment facility. ...
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... IR 8 (9) MIC 7 (7) MIC 13 (15) DTMF 14 (16) MUTE 12 (14) SUPPLY AND PD REFERENCE V EE The figures in parentheses refer to the TEA1068T. 1996 Apr 23 TEA1068 TEA1068T dB AGC CIRCUIT CURRENT REFERENCE 10 (11) 16 (18) 17 (19) 9 (10) REG AGC STAB Fig.1 Block diagram. ...
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... MUTE 14 DTMF Product specification TEA1068 DESCRIPTION SLPE GAS1 AGC 2 19 GAS2 3 18 REG MUTE QR 5 TEA1068T 6 15 DTMF GAR MIC n. n.c. MIC STAB 10 11 MBH131 Fig.3 Pin configuration TEA1068T. ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface FUNCTIONAL DESCRIPTION Supplies LN, SLPE, REG and STAB CC Power for the TEA1068 and its peripheral circuits is usually obtained from the telephone line. The TEA1068 develops its own supply at V and regulates its voltage drop. The ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface Mute input (MUTE) A HIGH level at MUTE enables the DTMF input and inhibits the microphone and the receiving amplifier inputs. A LOW level or an open circuit has the reverse effect. MUTE switching causes only negligible clicks at the earpiece outputs and on the line ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface If fixed values are chosen for R1, R2, R3 and R9, then condition (1) will always be fulfilled, provided that R8//Z << R3. To obtain optimum side-tone bal suppression, condition (2) has to be fulfilled, resulting in: Z (R8/R1 where scale factor: bal ...
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... LN(RM) per line current line V voltage on any other pin n P total power dissipation tot TEA1068 TEA1068T T IC storage temperature stg T operating ambient temperature amb T junction temperature j Notes 1. Mostly dependent on the maximum required T determine the current as a function of the required voltage and the temperature. ...
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... Product specification VALUE 150 I LN 130 110 888 mW. amb tot = 777 mW. amb tot = 666 mW. amb tot = 555 mW. amb tot Fig.8 Safe operating area TEA1068T. TEA1068 UNIT 65 K/W 90 K/W MBH125 (1) (2) (3) ( SLPE (V) ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface CHARACTERISTICS 140 mA 800 Hz; T line EE SYMBOL PARAMETER Supplies: LN and voltage drop over circuit between LN LN and voltage drop variation with LN temperature V voltage drop over circuit, between ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface SYMBOL PARAMETER Transmitting amplifier output LN V output voltage (RMS value) LN(rms) V noise output voltage (RMS value) no(rms) Receiving amplifier input IR Z input impedance i Receiving amplifier outputs QR+ and QR Z output impedance ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface SYMBOL PARAMETER MUTE input V HIGH level input voltage IH V LOW level input voltage IL I input current MUTE G voltage gain reduction between v MIC+ and MIC voltage gain from DTMF to QR Power-Down input PD ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface handbook, halfpage Curve (1) is valid when the receiving amplifier is not driven or when MUTE = HIGH. Curve (2) is valid when MUTE = LOW and the receiving amplifier is driven 150 mV 150 o(rms) L The supply possibilities can be increased simply by setting the voltage drop over the circuit V between REG and SLPE ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface handbook, full pagewidth Dynamic earpiece with less than 450 impedance. (1) May be connected to prevent distortion (inductive load). (2) Required to increase the phase margin (capacitive load). dbook, full pagewidth (dB ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface Table 1 Values of resistor R6 for optimum line loss compensation, for various usual values of exchange supply voltage V and exchange feeding bridge resistance R exch V (V) exch R = 400 exch 24 61.9 36 100 48 140 60 X handbook, full pagewidth ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface handbook, full pagewidth 100 F Voltage gain is defined as log V v Fig.15 Test circuit for defining voltage gain of the receiving amplifier. 1996 Apr 23 R1 620 MIC MIC TEA1068 GAR ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface APPLICATION INFORMATION handbook, full pagewidth R10 R3 13 130 k BAS11 (2x) R4 telephone BZW14 R3 line (2x) 3. bal Typical application of the TEA1068, shown here with a piezoelectric earpiece and DTMF dialling. The bridge to the left and R10 limit the current into the circuit and the voltage across the circuit during line transients ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface handbook, full pagewidth cradle contact telephone line The dashed lines show an optional flash (register recall by timed loop break). 1996 Apr DTMF TEA1068 MUTE BSN254A Fig.17 DTMF set with a CMOS DTMF dialling circuit. ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface PACKAGE OUTLINES DIP18: plastic dual in-line package; 18 leads (300 mil pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions UNIT max. min. max. 1.40 mm 4.7 0.51 3.7 1.14 0.055 inches 0.19 0.020 0.15 0.044 Note 1 ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface SO20: plastic small outline package; 20 leads; body width 7 pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.30 2.45 mm 2.65 0.25 0.10 2.25 0.012 0.096 0.10 inches 0.01 0.004 0.089 Note 1 ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. ...
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... Philips Semiconductors Versatile telephone transmission circuit with dialler interface 1996 Apr 23 NOTES 23 Product specification TEA1068 ...
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... Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. (381) 11 825 344, Fax. (359) 211 635 777 Internet: http://www.semiconductors.philips.com/ps/ For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31-40-2724825 SCDS48 © ...