GM6390 LG | Alldatasheet
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GOLDSTAR TECHNOLOGY INC/ ele D m@ 4028757? OO0506e & ee SFSFSSSSSSSSSSSSM TOT Description Pin Connection The GM6390 is a monolithic, integrated circuit manufactured using GS silicon Gate CMOS process, The device Is TONE/ = aha PULSE switchable dialer with the last mumber redial memory aut We and designed for low cost, high stability TONE/PULSE swit- eat? at | Rs chable telephone application. ais 20[7) Fa The pause key and the pulse to tone key are provided for ace 197] AT PBX and Long Distance compony operation. The wide ope- v-Els 18] v+ tating voltage range and low memory retention current faci- — litate this chip exlellent for battery-free direct telephon-line osci(jé amesso 17 f) BM operation. osca(]7 16{ ) test mute (| 8 15 [] Move ks [7] 9 14 [7] HOLD output Features PULSE output [10 187] XT MUTE « DTMF/PULSE Switchable Dialer DtmF outeut [}11 12["} KEY TONE OUTPUT ¢ One 31-Digits for Last Number Redial Memory © Auto Pause Access for PBX Operation; 3.1sec. per pause © Pulse to Tone Key(P-T) for Toll Service Operation Keyboard Function « Key-Tone Output for Valid Keypad Entry Recog- nition, ct c2 3 4 « Electronic Keypad Input is Availabte; Low Action « Uses Form A Keyboard or The Standard 2 of 8 Matrix Keyboard . at Pot « Uses Inexpensive 3.579545M Hz Television Color- Burst Crystal. Re ¢ Pin Selectable for Break/Make Ratio ¢ Low Memory Retention Current; 0.2 vA at V+=1,0V, HKS=1 RS 7 * Low Operating Voltage; 2.0V for Both Tone and Pulse Mode Ra © Switching from Pulse Modeto Tone Mode inLDC Operation « 22-Pin Dual-In-Line Package PT : Pulse to Tone Switch Ho tHold P ; Pause R_ : Redial 4-86
GOLDSTAR TECHNOLOGY INC/ 2eLE D M@@ 402475? 0003083 4 a a ttle nl Absolute Maximum Ratings ) _ 5 -O7-07 DC Supply Voltage V+ vrvssesssesssessesssesseseevessecssssnseesestncnsseensncenssnennanecnsansassesasenesenneansesateessseneersstaneetee 6,0V Any Input Relative to V-pssssssseseseesssssesessrssasscnsessscesssnssessssssassncsacessecsscansnseseassasensncsneansseonsessecseensensores oh Q,BV Any Input Relative to V— sssssssessessessseessessenssesscarsnnearsnsesesssessscacaneantoceresssasssesgencensactecnesesscnneanencensessasens —(,5Y Power Dissipation Pip «vssrsssssessessrsessesssensesssneessssseneersecssssenrennacsssscessesssessscteecersees BOOMW(TA=—25C to-+60C) Operating Temperature Topr ssssssessssseseecsesssseecsesssnusceecsesnnseesssssnseresessrssesecessanesecctanneeesesneeees — 25 to+85C Storage Temperature Tstg ssssssesesseecessesssssssssssseseeeeceeerecnnsoravsaveseseseceeceecensarsenanneessecstecsesssessee 6B tO+ 150° Functional Block Diagram TONE DIA ROW & COLUMN DATA ATER LATCH & “ ee — | 2 8 PULSE OUTPUT g2 READ & WRITE Sa Se COUNTER & 2 & — i. on ay i - . 4@ COLUMN: a0 CONTROL LOGIC a KEY TONE OUTPUT mi HOLD OUTPUT sci SYSTEM CLOCK Test osce GENERATOR AKS MODE = B/M V4+—Vo0 V—\\s5 eee . 4-87
G OLDSTAR TECHNOLOGY INC/ 2eLE D M@@ 40e8?S? OOO3084 T mm OO
Electrical Characteristics
(Unless otherwise specified, V-+=2.5V, Ta=25°C) T- 18-07-07 DC Characteristics . TEST SYMBOL PARAMETER TYP. | MAX. | UNIT TEST CONDITIONS. CIRCUIT fee [= Pee [vow Pio [= [ae [v [wenoy Y HKS=0, Unloaded and Standby Current uA No Keypad Entry Memory Retention — vA | AKS=1, V+=1V Current V¥=2.0~5.5V Vtoc Tone Output DC Level 0.5V-+ O6V+) V Keypad Entry Tone Output RL 10 THDS —23dB Load Impedance Tone Output Vro=0.5V,, ttos Sink Current No Keypad Entry POL Pulse Output 1.0 Veo=0.5V Sink Current Mute Output mA | VMo=2.0V Drive Current Mute Output VvMo=0.5V Sink Current Key Tone Output Ikoo Vo=2.0V Dirve Current Key Tone Output Ikos VKo=0.5V Sink Current eee 4-88
LDSTAR TECHNOLOGY INC/ eLE D Mm™@ 4028757 0003085 1 mm ne (Continued) 1S OF 0 7 TEST : SYMBOL. PARAMETER MIN. | TYP. | MAX. | UNIT TEST CONDITIONS CIRCUIT XT Mute Vx0=2.0V Drive Current XT Mute mA | Vxo=0.5V Sink Current HOLD OUTPUT foo mA | Vio=2,0V Drive Current HOLD OUTPUT tos mA | WHo=0.5V Sink Current Keypad Input uA VKI=0V Drive Current Keypad Input 57 400 oA VKI=2.5V Sink Current Control Pin Input - 10% | +01 HA Leakage Current * Dual Tone Multi-Frequency distortion is measured in term of total out-of-band power related to sum of row and column fundamental power. eee 4-89
GOLDSTAR TECHNOLOGY INC/ 2@le D m@ 4Oc4?S? GOOS06b 3 ma 715-07-07~ AC Characteristics T SYMBOL PARAMETER | win, | ave. | max. | UNIT TEST CONDITIONS Pulse Mute Delay Time at TEST=1, B/M=60:33 Pre-Dight Pause Time TEST=1, B/M=60:33 Pe = Te fe Pulse Rate — Sec Res Break/Make Ratio " a eee [im [row renuny [= fm [= [me [orem a ee [im [rowreniny | = ow [= [ite [rom [« _[revrowranwey | - [oe | [ee [= | Use 3.579545 MHz Crystal (R8S=1000, Lm=96mH, Cm=0.25PF, Ch=5pF, C.=18pF and AFS-+200ppm) OO 4-90
GOLDSTAR TECHNOLOGY INC/ 216 D ma 4O287S?7 GO03087 S mm Test Circuit (V+—Vpp, V— —>Vss) 1. 2. Ov+ O V+ —— | Voo TEST Voo FiKs BM Keyboard © Putee MODE o © Tone Vss AKS Vss = 3. V+ ° Counter & Veo AC Meter Single Colum or Single Row 10K _ TEST aKS Vss MODE eS CS ST | Ov+ 4. 1 Voo TEST Spectrum . Analyzer Cv) Keyboard 10K ARS” Vs MODE a THO=2010q/ WEEN Fe FF SWFF Wis *Vi,-+-++, Vin are harmonic frequency components in the 500Hz to 3400Hz band. * VL, Vare the individual frequency components of the DTMF signal. Ee ___ 4-91
GOLDSTAR TECHNOLOGY INC/ eLE D BM 402475? GO03088 7 me Voo TesT BIM () Keyboard Voc KS Ves MODE rs 6. 9 ee ee | \\ (*) ARS V0 Test BiM ve © Vss MODE pT
7 Po v+
@ * R: Anyone of R1~R4 Column R * C: Anyone of C1~C4 | | * two: I/(1—Duty Cycle) Cc * Current(|) is the dc current measured from ampere meter. AKS Vss MODE 8. P v+ a | * When column drive current is tested, the x Veo Test BM X is Column and Y is Row. When row drive current is tested, they are changed, © * ki0=1/Duty Cycle * Current(|) is the de current measured from oe ampere meter. Y | Y KS Vss MODE 4-92
GOLDSTAR TECHNOLOGY INC/ 21E D m@ 4024757 0003090 5S mm . T-15-0-07_GM6390 ———— *OSC1, OSC2 low in the transmitting period’of the address code. Input/Output, Pin 6,7, OSC1 and OSC2 and inputs to an on- Uwe chip inverter used as the timing reference for the circuit. it" HKS has sufficient loop gain to oscillate when used with a low cost TheHKS, hookswitch, Input is used to detect the state of hand 9.879545MHz television color-burst crystal. The oscilator Is set in ON-HOOK or OFF-HOOK. This is a high Impedance disabled when no keypad Input been sensed. Input and must be switched high for ON-HOOK operation or An on-board counter Is used to decrease the frequency of low for OFF-HOOK operation. . oscillator, and creates keypad deboumce, mute delay, pre- digit pause, Break-Make ratio, tone duration, Row group and ——— Column group frequency and key tone frequency etc, Any * PULSE Output deviation from the nominal crystal frequency is directly ref- The PULSE Output, pin 10, is consisted of an open drain N- tected in the time parameters above. channel device. In OFF-HOOK state, this NMOS transistor keeps in ON-state only in break duration, but OFF-state in *MUTE make or normal duration, in order to send the pulses train ‘The MUTE Output, pin 8, Is @ conventional CMOS Inverter the address codes in pulse mode. Figure 3. shows this which is pulled to high normally during standby, but pulled "ming. AKS ~] t 1 I i . I 1 KEVIN | 5 3 I 1]R pote—txo ( | | KEY TONE i 1 ti I Uy et et tit | wTe—{ | c PMO t 1 4 ty 1 | fi | tht por | t i lt " . “=, SUN = TA: 1 her -| my | i! \\ | I " - ] t | I ly BM I | I Tone output pp gp — i! tod Vy | | } ot 1 | I | '| l it 1 ol ' I | oof ee eT ! MANUAL "on | | AUTO ; ! ' took | i ! ! I Figure 3, Pulse Mode Timing eee 4-94
1GOLDSTAR TECHNOLOGY INC/ 21E D m® 4028757 G003042 1 a T-"75-07-07 *MODE be inserted in dialing sequence and different dialing mode, There are two methods of switching the IC to be pulse or —-~Pulseor Tone mode, js neeved. The chip provides wee . tone dlaler. One Is MODE Selection pin, pull it to high, the pause function and Pulse/Tone switchable, which facilitate dialer is in pulse mode, On the contrary, the dialer is intone _‘fexible application. . mode. The other is “PT”, pulse to tone keypad, when MODE (a) gang with rats. mode Is tled to high(in pulse mode), it is changed to tone mode elect pulse oF . . after pushing “P->T” button, And reset to pulse mode by Push 07) FB, -- xh D1~On: 0~9,*,# ; ; putting the handset back. In tone made (MODE=0), the “P ren re numer 11 be dialed out as following sequence: 7" button actuates nothing. Rech 2 a oni winout pause. i" 7 \\edialing wi se frauioredialing.the tone Puen jotontychanaing mode When the dialing, operation as above has done, but busy, previously 9.9.1 sec. pi id then ON-HOOK. Come OFF-HOOK, push then the signal . will be dialed out automatically as following sequence: *TEoT D1, pause 3.1 sec., D2, «+, Dn, TEST (C) Dialing with Pulse to Tone Key If TEST pin Is tied to high, the IC Is In norma! operation. the Select the Pulse or Tone mode is tied to GND, the IC is under test, single tone can be created Then the number will be dialed out as following sequence: with the operation shown In TABLE 1, and all of pulse time 1) If the mode switch is set in pulse mode, then the output parameter are divided by rate of 60. signal will be: . D1, D2, «++, Dn, 01, D2, «+, O'N; without pause B/M (Pulse mode) —_ (Tone mode) In pulse mode, the Break/Make ratio fs 60:40, if B/M=1; the 2) Ifthe mode switch Is set in Tone mode, then the output ratlo is 6624:33}4, If B/M=0, the B/M pin influences nothing, signal will be: In DIME mode. D1, D2, -+-, Dn, D4, D2, «++, Dh; without pause (Tone mode) (Tone mode) * KEYBOARD OPERATIONS (d) Redialing with Pulse to Tone Key When the dialing operation as above has done, but busy, te: | Note: Aine keyboard operations should be under off-hook then ON-HOOK. Come OFF-HOOK. * push BL then the signal will be dialed out automatically 1. Normal Dialing as same sequence of dialing with Pulse to Tone key, but has a 3.1 sec. pause during changing mode. Select Pulse or Tone mode Push Dj} 4, -, [nk D1~Dn: 0~8, *, 4:n Is unlimited. 5. Hold Line Then the number D1, D2, ++, Dn will be dialed out In pulse QFF-HOOK when the telephone is ringing, It need hold line or Tone mode as selected. (Excluding of “,# in Pulse mode) then: tone Push |H}and melody will be sent. After a moment, if want to 2. Redialing talk: a Select Pulse or Tone mode Push [H]. again, then melody will be stopped. Push [07),03, ---[Gnjn<31; If busy, after ONHOOK, Come Note: OFF-HOOK, push [A], the last number D1, D2, +++, Dn willbe 1) Thepausecanbe continuously stored for longer pause duration, but every automatically dialed out in Pulse or Tone mode as selected pause will occupy one digit of memory size, again. 2) The Pulse to Tone Key also can be stored for longer pause but always change state from pulse to tone mode. Itcan be reset to pulse mode only : In the operation of ON-HOOK. 3. Mix-Dialing 3)Hold line Is not ONHOOK state. REDIALING] + [MANUAL DIALING] Is allowable. 4. Pause and Pulse to Tone Keys Operation In some case, such as PABX or LDC service, pause should 4-96.