EM91403CK ELAN Microelectronics Corp, EM91403CK Datasheet

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EM91403CK

Manufacturer Part Number
EM91403CK
Description
Tone/pulse switchable dialer with LCD interface and dual tone melody generator
Manufacturer
ELAN Microelectronics Corp
Datasheet
GENERAL DESCRIPTION
The EM91403 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with
3 sets memories. The EM91403 series provide necessary functions of telephone set for application in any
environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone ,and lock functions.
The lock function is designed to inhibit toll dialing operation. Beside this, melody generator, ring detector and
SDO (Serial Data Output) functions are provided in advance version. Melody generator will output dual-tone
music in line hold duration. Ring detector can prevent illegal dialing from pocket dialer. The SDO is designed
to drive LCD driver and voice synthesizer. In this application, the dialing numbers can be displayed on LCD
screen with EM32100 ( or EM32116 ).
FEATURES
• Tone/Pulse switchable.
Wide operating voltage from 2.0 V to 5.5 V.
Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
• Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate,
M/B ratio, Flash time, lock dialing functions.
• SDO function supports LCD driver and voice synthesizer to indicate dialing numbers.
• Line hold function is designed for stopping conversation temporality.
• Melody generator provides music on hold function.
• Lock function provides conventionality key lock and password lock operations.
• Ring detector is designed to prevent illegal dialing from pocket dialer.
• 3-set one touch repertory memory, each one can hold data up to 16 digits.
• A 32-digit LNB (last number) redial memory.
• Keytone function provides rapidly keying recognition.
• Handfree function provides on-hook dialing and speakerphone application.
• Pause and P-T time are fixed to 3.6 seconds.
• Tone duration and inter-tone pause time are fixed to 98 ms.
• Using 3.579545 MHz crystal or ceramic resonator.
• Package forms: PDIP, skinny.
ORDERING INFORMATION
Versions list and function outline
VERSION
LNB
EM91403A
EM91403B
EM91403C
EM91403D
Note : PDP = Pocket Dialer Prevented
* This specification are subject to be changed without notice.
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
AND DUAL-TONE MELODY GENERATOR
AND DUAL-TONE MELODY GENERATOR
KT
HOLD(music)
LOCK
EM91403 SERIES
EM91403 SERIES
HF
SDO(LCD)
PDP
10.1.1997
1

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EM91403CK Summary of contents

Page 1

GENERAL DESCRIPTION The EM91403 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with 3 sets memories. The EM91403 series provide necessary functions of telephone set for application in any environment, such as ...

Page 2

... EM91403 Pin Assignment EM91403AP COL5 COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS EM91403CK NC COL5 COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI 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 EM91403 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. Repertory memory The EM91403 series incorporated several sets repertory memory ...

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Flash (F) key operation The Flash (F) key is designed to break telephone line temporarily. After F key is depressed, this dialer will send a flash signal to break line 600 ms, 300 ms, 100 ...

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Operating flow chart 4 On-hook Hand-free State On-hook Hold-line State <Note> Handfree HD = Hold Truth table Operating state (0) On-hook, idle state (1) Off-hook line (2) Off-hook, HF line (3) On-hook, HF ...

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SDO Keypad Encoded table: Digital key (b5,b4=0,0) keypad output b3,b2,b1,b0 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 Display Function key (b5,b4=1,0) keypad ...

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LOCK function The EM91403 serial provides the LOCK function to inhibit toll dialing operation. Connecting a resistor on COL1 pin to VSS can select different LOCK control method that is conventional key lock or password lock. Also the lock number ...

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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 ...

Page 13

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 ...

Page 16

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 ...

Page 17

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 ...

Page 18

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 EM91403 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 13 12 HFO HFI 14 11 DTMF VSS 15 10 VDD XMUTE ...

Page 20

EM32100 Application Circuit : SEG16 25 SEG15 26 SEG14 27 SEG13 28 SEG12 29 SEG11 30 SEG10 SEG9 33 SEG8 34 SEG7 35 SEG6 36 Package type : QFP 48 pins or chip form provided * This ...

Page 21

EM32116 Application Circuit : Package type : QFP 64 pins or chip form provided * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR TEST1 SEG10 F32HZ SEG11 MS1 SEG12 ...

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PACKAGE INFORMATION Example : EM 91403 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 ...

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