EM91401AP ELAN Microelectronics Corp, EM91401AP Datasheet
EM91401AP
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EM91401AP Summary of contents
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GENERAL DESCRIPTION The EM91401 is a series of tone/pulse switchable dialers that is composed of T/P dialer. The EM91401 series provide necessary functions of telephone set for application in any environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, ...
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... EM91401 Pin Assignment EM91401AP 1 COL4/KT 2 COL3 3 COL2 4 COL1 5 XIN 6 XOUT 7 XMUTE 8 VSS EM91401CP SDO 1 COL4/KT 2 COL3 3 COL2 4 COL1 5 XIN 6 XOUT 7 XMUTE 8 VSS 9 HFI 10 Keyboard Arrangement ROW1 ROW2 ROW3 ROW4 * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE ...
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FUNCTIONAL BLOCK DIAGRAM COL1 Keyboard COL2 COL3 interface COL4/KT (column) COL5 XIN Oscillator XOUT ROW1 Keyboard ROW2 interface ROW3 (Row) ROW4 PIN DESCRIPTIONS Symbol ROW1~ROW4 Keyboard scan pins of row group. In idle state (HKS is “High” and HFO is ...
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Symbol HKS Control signal inputs pin that is corresponding hook switch status. When handset was left from cradle, this pin must be connected to “Low” level to operate all functions. Otherwise, this pin must be connected to “High” level to ...
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FUNCTION DESCRIPTIONS Dialing signal selection The EM91401 series incorporated a special keyboard scanning function that is connecting a resistor (typically is 560 Kohms) on keyboard scan pin to select many telephone specifications. The specifications are described as following : a. ...
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Redialing: After normal dialing, directly keying F key (or On-Off hook once) and keying RD key on keyboard. The numbers that are stored into LNB memory will be dialed output. Pause (P) key operation The Pause (P) key is designed ...
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Turn on Handfree (HF) function. (HFO pin switched to “High”) Special Note: A 300 ms delay time (Tdly) at the first Off-Hook or turn on Handfree that is a special designed to avoid a rapid key entry (dummy number ...
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SDO (Serial Data Output) function The SDO is serial data output which format is same as UART protocol. SDO function is designed to drive LCD driver and voice synthesizer. So the dialing numbers can be display on LCD screen with ...
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VSS can select different LOCK control method that is conventional key lock or password lock. Also the lock number that can be selected by connecting the resistors on COL2 or COL3 pin. After power on reset, the password ...
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Microphone of the phone handset. (such as pocket dialer idle state, HKS is from “High” to “Low” (pick up handset action). ii. In idle state, ...
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ELECTRICAL CHARACTERISTIC (Ambient temperature =2.5V unless otherwise noted, all voltages referenced to Vss,Fosc=3.579545 MHz) DD Parameter Keyboard debounce time Key tone signal: frequency duration Pause time Pulse to Tone waiting time Flash time Pulse rate Make/Break ...
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DTMF output frequency (fosc = 3.579545 MHz) Keyboard scan pin CCITT standard (Hz) ROW1 (f1) ROW2 (f2) ROW3 (f3) ROW4 (f4) COL1 (f5) COL2 (f6) COL3 (f7) * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER ...
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TIMING DIAGRAM HKS 2 KEY IN Tdb KT XMUTE HDO SDO PO DTMF OSC. Tdly HKS KEY IN KT XMUTE HDO SDO PO DTMF OSC. * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD ...
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LNB=2,3 HKS RD/P KEY IN Tdb KT XMUTE HDO SDO PO DTMF OSC. Tdly LNB=2,3 HKS RD/P KEY IN Tdb KT XMUTE HDO SDO PO DTMF OSC. Tdly * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE ...
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HKS 2 KEY IN KT XMUTE HDO SDO PO Tidp DTMF OSC. HKS 2 KEY IN KT XMUTE HDO SDO PO DTMF OSC. Figure 6. Pulse to Tone (P T) operating timing HKS KEY IN Tdb KT XMUTE HDO SDO ...
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HKS KEY IN KT SDO <Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time HKS HF KEY IN HFO HDO XMUTE SDO PO MELODY @ : It can be triggled by extension telephone set for hold function release HFI HF or HKS ...
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RING Ton DRING HKS RMUTE * The external ring detection circuit must send a low signal at the total ring cycle (Ton and Toff) RING DRING HKS RMUTE * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE ...
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APPLICATION CIRCUIT EM91401 series Application circuit * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR RMUTE DRING 12 11 HFO HFI 13 10 DTMF ...
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EM32100 Application Circuit : SW 100K SW HOOK R? VDD 200K SDO SDI HKS 220K DIALER Q? 3 HDO 2 1 C945 HFO VSS 100K Package type : QFP 48 pins or chip form provided * ...
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EM32116 Application Circuit : SDI Hook Switch detection circuit 1 2 LINE HOOK 100K .1U Package type : QFP 64 pins or chip form provided * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE ...
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PACKAGE INFORMATION Example : EM 91401 P (1) (2) (3) (1) ELAN MICRO. pefix (2) Type number (3) Package code: 18/20/28 Lead Plastic Package PDIP MILIMETERS INCHES DIM MIN. MAX. MIN. MAX 5.334 - .210 ...
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Lead Plastic Package-Skinny PDIP (skinny) MILIMETERS DIM MIN. MAX 4.752 A1 0.381 - B 0.356 0.558 B1 1.27 1.778 C 0.204 3.556 D 25.90 26.67 E 7.620 8.255 E1 6.223 6.604 e 2.286 ...
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SDIP Package DIM * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE SDIP MILIMETERS MIN. MAX. MIN 5. 0.381 ...