UBA2050AT Philips Semiconductors, UBA2050AT Datasheet
UBA2050AT
Available stocks
Related parts for UBA2050AT
UBA2050AT Summary of contents
Page 1
DATA SHEET UBA2050(A); UBA2051(A;C) One-chip telephone ICs with speech, dialler and ringer functions Product specification Supersedes data of 1998 Mar 24 File under Integrated Circuits, IC03 INTEGRATED CIRCUITS 2000 May 19 ...
Page 2
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions FEATURES Speech/transmission part Low DC line voltage; operates down to 1.45 V (excluding voltage drop over external polarity guard) Line voltage regulator with adjustable DC voltage Regulated 3.3 V supply (V ) for the dialler part and DD peripherals compatible with: – ...
Page 3
... It performs electronic switching between transmission and dialling. The IC operates voltage down to 1.45 V (with reduced performance) to facilitate the use of telephone sets connected in parallel. ORDERING INFORMATION TYPE NUMBER NAME UBA2050T SO28 UBA2050AT SO28 UBA2051T SO28 UBA2051AT SO28 UBA2051CT SO28 2000 May 19 ...
Page 4
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions QUICK REFERENCE DATA SYMBOL PARAMETER Speech/transmission part I line current operating range line V DC line voltage LN I internal current consumption CC V supply voltage for internal circuitry CC (unregulated) V regulated supply voltage for peripherals ...
Page 5
Acrobat reader. white to force landscape pages to be ... KT DP/FL DIALLER PART FLASH KEYTONE R4 KEYBOARD DETECTOR C1 C2 ...
Page 6
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions PINNING SYMBOL UBA2050 UBA2050A LN 1 SLPE 2 REG AGC 5 DTMF XTAL 8 DP/FL 9 DMO 10 LED CE/CSI 11 CE/FDI 12 MDY/TONE GND 22 QR ...
Page 7
... UBA2050AT XTAL DP/FL LED CE/CSI CE/FDI MDY/TONE MGT043 Fig.3 Pin configuration (UBA2050AT SLPE MIC 2 27 REG 3 26 MIC AGC GAR 5 24 DTMF GND 7 UBA2051AT 8 21 ...
Page 8
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, halfpage LN 1 SLPE 2 REG AGC 5 DTMF UBA2051CT XTAL 8 9 DP/ CE/CSI 11 CE/FDI 12 MDY/TONE FCA128 Fig.6 Pin configuration (UBA2051CT). FUNCTIONAL DESCRIPTION The values given in the functional description are typical values unless otherwise specified ...
Page 9
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Internal supply (pin The internal transmission part circuitry is supplied from V . This supply voltage is derived from the voltage on CC pin LN by means of resistor capacitor C connected between pins V VCC This supply point may also be used to supply peripheral circuits e ...
Page 10
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions 3 handbook, halfpage I P (mA line SLPE (1) This curve is valid when the receiving amplifier is not loaded. (2) This curve is valid when the receiving amplifier is loaded; ...
Page 11
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions R line I line handbook, full pagewidth exch I SUP V exch UBA205xx S ET IMPEDANCE In the audio frequency range, the dynamic impedance is mainly determined by resistor R CC impedance of the circuit is illustrated in Fig.11. 2000 May 19 ...
Page 12
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions T RANSMIT STAGES Microphone signal amplification (pins MIC+ and MIC ) The UBA205xx has symmetrical microphone inputs. The input impedance between pins MIC+ and MIC handbook, full pagewidth ...
Page 13
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Earpiece amplifier (pins GAR and QR) The earpiece amplifier is an operational amplifier having its output QR and inverting input GAR available. It can be used in conjunction with two resistors to get some extra gain or attenuation. ...
Page 14
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth QR GND a. Dynamic earpiece. (1) This resistor may be connected to prevent distortion due to the inductive load. (2) This resistor is required to increase the phase margin due to the capacitive load. 2000 May 19 UBA2050(A); UBA2051(A;C) ...
Page 15
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions A ( AGC) UTOMATIC GAIN CONTROL PIN The UBA205xx performs automatic line loss compensation. The automatic gain control varies the gain of the microphone amplifier and the gain of the receive amplifier in accordance with the DC line current. ...
Page 16
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions S S IDETONE UPPRESSION The anti-sidetone network for the UBA205xx, comprising R in parallel with line ast1 (see Fig.16), suppresses the transmitted signal in the earpiece. Maximum compensation is obtained when the ...
Page 17
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth Z line GND Fig.17 Equivalent circuit of an anti-sidetone network in a Wheatstone bridge configuration. Dialler and ringer parts UPPLY VOLTAGE PIN DD The power supply must be maintained for repertory memory retention (standby supply voltage) and may drop down to 1 ...
Page 18
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions I ( CE/FDI NTERNAL RESET CIRCUIT PINS A reset signal is internally generated to initialize the UBA205xx as follows (see Fig.18): By the on-chip Power-On Reset (POR) circuit as long lower than V DD POR When the voltage on pin CE/CSI and on pin CE/FDI are ...
Page 19
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Table 3 Ringer melodies NAME Bell 1 (default) Bell 2 Bell 3 Bell 4 handbook, full pagewidth CE/FDI sync time MDY/TONE P ( DP/FL, DMO ULSE DIALLER PINS The pulse dialling system uses line current interruptions to signal the digits dialled to the exchange. The number of ...
Page 20
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth KEYS internal MUTE DP/FL DMO t = break time make time mho t = interdigit pause time. t idp pdp Fig.20 Timing diagram in pulse dialling mode for the UBA205x. handbook, full pagewidth ...
Page 21
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions T ( MDY/TONE ONE DIALLER PINS AND The digits are transmitted as two simultaneously generated tones: the Dual-Tone Multi-Frequency (DTMF) system. These dual tones which are provided at the MDY/TONE output are internally generated with two digital sine wave synthesizers together with digital-to-analog converters ...
Page 22
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Table 4 DTMF standard frequencies and their implementation DTMF FREQUENCY (Hz) 697 770 852 941 1209 1336 1477 Note 1. Assuming f = 3.579545 MHz. xtal F ( DP/FL LASH FUNCTION PINS AND Pressing the flash function key [R] results in a calibrated pulse which drives the electronic line current interrupter via pin DP/FL ...
Page 23
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions EYBOARD DETECTOR PINS TO The pins are directly connected to a traditional single contact keyboard. The keyboard is normally static with outputs LOW level and inputs with internal pull-up resistors. When any key is pressed, scanning is done to detect which key has been pressed ...
Page 24
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Keyboard structure The UBA205xx supports the keyboard structure given in Fig.25. Pin C4 is not available in the UBA2050x. For key definitions, see Table 5. MBS handbook, full pagewidth APT PPS PTS MMS FTSA FTSB Table 5 Key defi ...
Page 25
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Table 6 Digits keypad activation and corresponding DTMF frequency pairs GENERATED DTMF DIGIT FREQUENCIES KEYS f (Hz) L [0] 941 [1] 697 [2] 697 [3] 697 [4] 770 [5] 770 [6] 770 [7] 852 [8] 852 [9] 852 [#] 941 [ /T] 941 Table 7 Resistor functions ...
Page 26
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions K ( KT) EY TONE PIN A keytone with a frequency f = 597 Hz and a duration t kt pressed resulting in the expected action, digit keys in tone dialling mode excepted. Pin push-pull output and is set LOW when V handbook, full pagewidth ...
Page 27
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth Table 8 Melody selection during ringer state MELODY Bell 1 Bell 2 Bell 3 Bell 4 2000 May 19 power-on ringer signal STANDBY ringer invalid on-hook/line break RINGER off-hook Fig.28 UBA205xx standby, ringer and on-line states. ...
Page 28
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions LINE STATE This section describes all the actions of the UBA205xx during the on-line state. This state starts with making output DP/FL HIGH (external pull-up resistor), which makes line current flow possible. ...
Page 29
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth PTS = on PULSE DIALLING DIALLING Pulse dialling In this mode all valid keys are dialled by the pulse dialler. When, during pulse dialling, either [ /T] when MMS is off pressed, the UBA205xx switches over to tone dialling (mixed mode dialling) ...
Page 30
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Memory recall state (only UBA2051x) Repertory numbers can be dialled out after or before entering manual dialling, last number redial and by entering the memory locations in successive order. Repertory recall is not possible as long as a dial out is pending ...
Page 31
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL P total power dissipation tot T ambient temperature amb T storage temperature stg T junction temperature j Speech/transmission part V positive continuous voltage on pin LN ...
Page 32
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, halfpage ( 1.000 W. amb tot ( 0.875 W. amb tot ( 0.750 W. amb tot ( 0.625 W. amb tot 2000 May 19 150 I LN (mA) 110 SLPE (V) Fig ...
Page 33
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions CHARACTERISTICS mA; GND = line SLPE measured according to the test circuits of Figs 32, 33 and 34; see also Figs 37 and 38; unless otherwise amb specified. SYMBOL PARAMETER Supplies L ( LN) INE INTERFACE ...
Page 34
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions SYMBOL PARAMETER I available supply current for DD peripherals in on-line mode I memory retention current DD(MR) (internal consumption memory retention voltage DD(MR) V Power-on reset trip level DD(POR) Transmit stages M ( MIC+ ICROPHONE AMPLIFIER PINS ...
Page 35
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions SYMBOL PARAMETER G voltage gain variation with v(DTMF)(T) temperature G voltage gain from pin DTMF v(ct) to pin RX (confidence tone) Receive stages ECEIVE AMPLIFIER PINS AND Z input impedance i G voltage gain from ...
Page 36
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions SYMBOL PARAMETER Automatic gain control (pin AGC) G voltage gain control range for v(trx) microphone and receive amplifiers I highest line current for start maximum gain I lowest line current for stop ...
Page 37
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions SYMBOL PARAMETER Z output impedance o THD total harmonic distortion T ( LN) RANSMIT CHANNEL PIN V high group frequency voltage HG(LN)(rms) (RMS value) V low group frequency voltage LG(LN)(rms) (RMS value) MDY output (pin MDY/TONE) ...
Page 38
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions TIMING CHARACTERISTICS SYMBOL PARAMETER Timing EYBOARD INPUTS OUTPUTS PINS t keyboard depress dd debounce time t keyboard release rd debounce time K ( KT) EY TONE OUTPUT PIN t keytone time kt f keytone frequency DP/FL) IAL PULSE FLASH OUTPUT ...
Page 39
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions SYMBOL PARAMETER t brake time b t flash time fl MDY/TONE) IAL TONE OUTPUT PIN t burst time t t pause time CE/CSI HIP ENABLE INPUTS PINS t reset delay time RD Timing f ringer detection frequency ...
Page 40
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions TEST AND APPLICATION INFORMATION handbook, full pagewidth I line 100 F V MIC line Z line 600 V DTMF V Voltage gain defined log ------ - v V Microphone gain open. DTMF gain and confidence tone closed. ...
Page 41
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth I line 100 F 220 line Z line C DTMF 100 nF R DTMF1 600 Voltage gain defined log ------ - v V Receive and earpiece gains open. Inputs not being tested should be open-circuit. ...
Page 42
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth MIC MIC DTMF V CC MDY/TONE DP/FL REG Inputs not being tested should be open-circuit. Only pins common to UBA205xx are represented. Pin R4 must be open-circuit. Fig.34 Test circuit for defining regulated supply (V ...
Page 43
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth S1 trickle ring R ring A/B 2 BR211 D1 D2 (220 V) BAS11 B/A D4 BAS11 TR4 BC547 H1 ringer TR5 BC557 vrr (35 V) Fig.35 Application of the UBA2050 (continued in Fig.36). 2000 May 19 ...
Page 44
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth A IC1 Fig.36 Application of the UBA2050 (continued from Fig.35). 2000 May 19 R feed 1 k 100 F C VCC ( feed ( micp tx1 R tx1 MIC ...
Page 45
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth R prot 3.9 TR2 BZX79C 470 k S1 trickle ring R ring A/B 2 BR211 D1 D2 (220 V) BAS11 B/A D4 BAS11 H1 ringer vrr (35 V) Fig.37 Application of the UBA2051 (continued in Fig.38). 2000 May 19 ...
Page 46
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions handbook, full pagewidth A IC1 B Fig.38 Application of the UBA2051 (continued from Fig.37). 2000 May 19 R feed 1 k 100 F C VCC ( feed ( micp tx1 R tx1 MIC ...
Page 47
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions PACKAGE OUTLINE SO28: plastic small outline package; 28 leads; body width 7 pin 1 index 1 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 inches 0 ...
Page 48
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions SOLDERING Introduction to soldering surface mount packages This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” ...
Page 49
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions Suitability of surface mount IC packages for wave and reflow soldering methods PACKAGE BGA, LFBGA, SQFP, TFBGA HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS (3) PLCC , SO, SOJ LQFP, QFP, TQFP SSOP, TSSOP, VSO Notes 1 ...
Page 50
... Specification may change in any manner without notice. This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. ...
Page 51
... Philips Semiconductors One-chip telephone ICs with speech, dialler and ringer functions 2000 May 19 UBA2050(A); UBA2051(A;C) NOTES 51 Product specification ...
Page 52
... Tel. +46 8 5985 2000, Fax. +46 8 5985 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2741 Fax. +41 1 488 3263 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2886, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...