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| IL91210EN TONE/PULSEDIALER The IL91210EN is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58 MHz crystal or ceramic resonator. It provides dialing pulse (DP) or dual tone multi-frequency (DTMF) dialing. A standard 4x4 matrix keyboard can be used to support either DP or DTMF modes. Up to 32 digits can be saved in the on-chip RAM for reading. In the DTMF mode, minimum tone duration and minimum intertone pause are provided for rapid dialing. Maximum tone duration is dependent upon the key depression time in manual dialing. * One touch redial operation * Tone/Pulse switchable * 32-digit capacity for redialing * Built-in power up reset circuit * PABX auto-pause is 2.2 second ORDERING INFORMATION * DTMF Timing: IL91210EN Manual dialing: minimum duration for bursts and pauses TA = -20 to 70 C Redialing: calibrated timing * Wide operating voltage range: 2 V to 5.5 V * Uses inexpensive ceramic resonator (3.58 MHz) * Digits dialed manually after redialing are cascadable and stored as additional digits for the next redialing * Automatic mixed redialing (last number redial) of pulse to DTMF with multiple automatic access pauses * Four extra function keys: flash, pause, redial and DP or DTMF mixed dialing * Four-by-four (or 2 of 8) keyboard can be used * Low standby current * Dial Pulse Rate: 10 pps DC ELECTRICAL CHARACTERISTICS(V CC =3.5 V,F OSC=3.579 MHz, TOP=+25C) Symbol Parameter Test Conditions Guaranteed Limits Min VCC VMR VOC VOR IOL1 IOL2 IMR ICCP ICCT ISBP ISBT DC Supply Voltage Minimum Memory Retention Voltage 2.0 1.0 Column Row VOL = 0.4 V VOL = 0.4 V VCC = 1.0 V, HK = VCC All outputs unloaded Pulse mode Tone mode Pulse mode HK=VCC=1.5 V Tone mode HK=GND Max 5.5 V V 876 684 mA mA 0.6 1.0 2.0 0.05 A mVp-p Unit Tone Output Voltage Minimum Output Current, XMUTE, KT, MODEOUT Minimum Output Sink Current, DP Memory Retention Current VCC = 3.5 V RL = 5K 584 456 0.5 0.6 Maximum Operation Current All outputs unloaded All outputs unloaded. No key selected mA Maximum Standby Current A 15 Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by IL91210EN DIS% Distortion 7 % Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by IL91210EN AC ELECTRICAL CHARACTERISTICS Symbol TM Make Time Parameter Test Conditions M/B = 1/2 M/B = 2/3 TB TIDP TPAU TROBK TMFD TTIDP TFSH Break Time Inter Digit Pause Time Pause Time Auto-redial Break Time Minimum Tone Duration Time Minimum Tone Inter-digit Pause Flash Time F1 F2 M/B = 1/2 M/B = 2/3 Typ 33.3 40 66.6 60 824 2.2 2.2 94 96 96 640 ms sec sec ms ms ms ms Unit ms APPLICATION CIRCUIT R1 SB1 RU1 VD1-VD4 VD6 100V R2 R5 R6 1 4 2 5 8 3 6 9 # F1 F2 P RD R10 R11 1 2 3 4 R1 R2 R3 R4 C4 18 17 16 15 VT4 C3 IN91210 C3 C2 C1 C1 7 *T0 VD5 5 SA1 BQ1 VT2 HK M/B OSCO 9 ZQ1 R12 6 SA3 VD7 R7 R8 SA4 VT1 OSCI 8 C4 R3 R4 7 MS DP 14 VT3 10 Vdd 11 TONE 12 Vss XMUTE 13 R21 R23 R26 BF1 VD8 3,9V C2 VD9 R9 C9 R20 C10 VT7 R18 R1=10M R2=1K R3=390K R4=470 R5=270K R6=1M R7=470K R8=100K R9=1K R10=100K R11=33K R12=2,2K R13=1K R14=390K R15=1K R16=33 R17=560 R18=10K R19=8,2K R20=390K R21=4,7K R22=10K R23=1K R24=56 R25=20 R26=56K R27=10 BM1 C1=1mkx250V C2=47mkx16V C3=30pF C4=30pF C5=4,7nF C6=1nF C7=0,1mk C8=0,1mk C9=1mkx50V C10=10mkx16V C11=0,1mk C5 VT1-H945 VT2-H945 VT3-2N5551 VT4-2N5401 VT5-H945 VT6-C2001 VT7-H945 ZQ-3,58MHz R13 R14 R19 C8 VD10 R22 VT6 R25 C11 R24 R27 R15 R17 C7 VD11 VD12 VT5 C6 R16 Korzhenevskogo 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by |
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