EM91401 SERIES EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR AND DUAL-TONE MELODY GENERATOR inary m i l e r P 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, 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. • 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 KT EM91401A √ √ EM91401B √ √ EM91401C √ √ EM91401D √ √ Note : PDP = Pocket Dialer Prevented HOLD(music) * This specification are subject to be changed without notice. √ √ LOCK √ √ √ √ HF SDO(LCD) PDP √ √ √ √ √ √ 10.1.1997 1 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim EM91401 Pin Assignment EM91401BP EM91401AP COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 18 17 16 15 14 13 12 11 10 PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF HFO EM91401DK EM91401CP SDO COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI 1 2 3 4 5 6 7 8 9 COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF SDO COL4/KT COL3 COL2 COL1 XIN XOUT XMUTE VSS HFI DRING HDO PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF HFO 1 2 3 4 5 6 7 8 9 10 11 22 21 20 19 18 17 16 15 14 13 12 HDO PO ROW4 ROW3 ROW2 ROW1 HKS VDD DTMF HFO RMUTE Keyboard Arrangement ROW1 ROW2 ROW3 ROW4 COL1 1 4 7 */T COL2 2 5 8 0 * This specification are subject to be changed without notice. COL3 3 6 9 # COL4/KT HD F RD/P 10.1.1997 2 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P FUNCTIONAL BLOCK DIAGRAM RMUTE SDO HFO HDO COL1 COL2 COL3 COL4/KT COL5 Keyboard Row/Column programming counter Output circuit interface (column) Memory (Melody) XIN XOUT XMUTE latch & decoder D/A converter DTMF Oscillator Timing/Control circuit ROW1 ROW2 ROW3 Keyboard interface (Row) Pulse generator Input circuit PO ROW4 VDD VDD HFI HKS DRING PIN DESCRIPTIONS Symbol ROW1~ROW4 COL1~COL3 COL4/KT XIN and XOUT XMUTE VDD and VSS HFI HFO DTMF Function Keyboard scan pins of row group. In idle state (HKS is “High” and HFO is “Low”), these pins stay “High impedance” level to prevent power consumption. Otherwise, these pins switch to “High” level for detecting keyboard entry. These pins will output 600 Hz signal while keyboard is scanning. Keyboard scan pins of column group. In idle state, these pins stay “High impedance” level. Otherwise these pins switch to “Low” level for detecting keyboard entry. These pins will output 600 Hz signal while keyboard is scanning. The fourth column group pin of the keyboard that also provides the keytone output . Normally, this pin stays “Low” level for detecting keyboard entry. After a valid keyboard entry, this pin will output keying confirmation tone that is 600 Hz signal and 30 ms duration. To prevent signal interference, while DTMF issue, it will disable key tone output except function key. Oscillator input and output pins. A 3.579545 MHz crystal or ceramic resonator must be crossed connection to XIN and XOUT pins which generate system clock. The Tone/Pulse MUTE signal output pin that is NMOS open-drain output structure. This pin will switch to “Low” level during Tone/Pulse dialing and hold function . Otherwise, this pin stays “High impedance” level. Positive and negative power supply input pins. Recommended operating voltage from 2.0Vdc to 5.5Vdc. Handfree inputs pin which accepts falling edge signal to turn “on” or turn “off” handfree function. This pin is hysteresis input structure and built-in pull up resistor (typically 200 Kohms). Handfree outputs pin that is designed to control telephone line for on-hook dialing or control speakerphone circuit for handfree conversation. When handfree function is executed, this pin will switch to“High”. Otherwise, this pin stays “Low” level. The DTMF (Dual Tone Multi-Frequency) and music signals output pin. Normally, this pin stays “Low” level. In Tone dialing mode, this pin will output DTMF signal that is corresponding to keyboard 0 .. 9, * and # keys. Beside this, in the line hold duration, this pin will issue dual-tone music for telephone line. * This specification are subject to be changed without notice. 10.1.1997 3 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR Symbol HKS PO HDO SDO DRING RMUTE inary Prelim Function 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 disable all function and prevent power consumption. Pulse signal outputs pin that is NMOS open-drain output structure. Normally, this pin stays “High impedance” level. In Pulse dialing mode and keypad was entry. This pin will output pulse trains signal that is corresponding to keyboard 0 .. 9 keys. Hold function output that is CMOS structure.Normally, this pin stays “Low” level. When Hold function is executing, this pin will output “High” level. This pin is designed to drive LED or peripheral circuit to indicate line is at Hold status. SDO function output that is NMOS open-drain structure. When there is a valid entry on keyboard, this pin will output a serial data. This serial data is designed to drive LCD driver to display dialing number on LCD screen or drive voice synthesizer to announce dialing number to speaker. The ring signal detect input pin which is internal pull up (built-in 100 Kohms resistor). While the Tel-ring is incoming, this pin must be connected to “Low” with delay to indicate the ringing . Otherwise, this pin must be connected to “High” level . Ring mute output pin that is NMOS open-drain structure. The RMUTE pin is designed to control microphone of handset to prevent the illegal dialing from pocket dialer. If the DRING pin is at “High” level , then Off-Hook or turn on Handfree , this pin will output “Low” level. In other words, the DRING pin is used to check the phone that receives an incoming call (DRING =Low input) or make an outgoing call (DRING= High input) . If the phone user make an outgoing call ,then RMUTE pin activated to prevent the illegal dialing from pocket dialer in the particular application.The RMUTE can be restored to “High” level when the first key entry is not the optioned lock-number . * This specification are subject to be changed without notice. 10.1.1997 4 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR FUNCTION DESCRIPTIONS inary m i l e r P 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. Mode ROW1 Mode R-Vdd 20 PPS NR Tone R-Vss 10 PPS c. Flash time ROW3 ROW4 NR NR NR R-Vss R-Vss NR R-Vss R-Vss b. M/B ratio ROW2 MBR (%) NR 40:60 R-Vss 33:66 Tf (ms) 600 100 80 300 e. Lock number COL2 COL3 NR NR NR R-Vss R-Vss NR R-Vss R-Vss Lock number none 0 9 0.9 d. Lock control method COL1 Control method R-Vdd key lock NR none lock R-Vss password lock Normal dialing Directly keying digital key on keyboard which number can be dialing output and stored in LNB memory automatically. Operating procedure described as follow : • To select Pulse or Tone mode. • Off-hook or turn on HF function. • Keying d1, d2, .. , dn. The “d” expressed digital keypad that included 1~9, *, 0, #, P, and P→T keys. The “n” expressed unlimited. • The numbers d1, d2, .. , dn will be dialed out in Pulse or Tone mode as selection. LNB redial memory Storing: In normal dialing mode, every digital key was entry which number will be stored in LNB memory automatically. If entry digits are more than 32 digits, the redial function of LNB memory will be disabled. Otherwise, these numbers stored in LNB memory can be redial output. * This specification are subject to be changed without notice. 10.1.1997 5 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim 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 to support pause operation in dialing duration. “P” key can be stored in memory and it will occupy one digital position. • To select Pulse or Tone mode. • Off-hook (or turn on HF function), push (d1, d2, .. , dn, RD/P, k1, k2, .. , kn.) These numbers will be dialed out as following sequence: d1, d2, .. , dn, Tp, k1, k2, .. , kn. Pulse to Tone (*/T) key operation The Pulse to Tone (*/T) key is designed to support toll dialing (long distance call) or PABX system operation. The “*/T” key can be stored in memory and it will occupy one digital position. • To select Pulse mode. • Off-hook (or turn on HF function), push d1, d2, .. , dn, */T, k1, k2, .. , kn. These numbers will be dialed out as following sequence: d1, d2, .. , dn, Tpt, k1, k2, .. , kn. (pulse mode) (tone mode) 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 ms or 80 ms as ROW3 and ROW4 selection. Handfree (HF) function The handfree function is designed to support on-hook dialing and loudspeaker application which can be turn “on” or “off” with falling edge signal from HFI pin. During handfree function is executed, the HFO pin is switched to “high”. Otherwise the HFO pin stays “low” level. One of the following operations can turn off Handfree function (HFO pin return to “Low”). • On-off hook once. • Trigger HFI pin with falling edge signal. • Turn on Hold (HD) function. (HDO pin switched to “High”) Hold (HD) function The Hold function is designed to stop conversation temporarily. In off-hook state (or HF function is turned on), to press HD key on the keyboard, the Hold function can be turned “on” (HDO pin switched to “High”). One of the following operations can turn off Hold function (HDO pin switched to “Low”). • On-off hook once. • To press HD key over 93 ms. * This specification are subject to be changed without notice. 10.1.1997 6 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P(HFO pin switched to “High”) • Turn on Handfree (HF) function. 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 ) in this time duration ,and a long distance call number follows. For example, Off-Hook , “3” ,............ , “0” ,1,2,3...... Dummy key Lock number key The dummy number “3” is not detected by the centered office or PABX ,but the following numbers “0” ,1,2,3... long distance call can be dialed out normally since the leading number “3” is not the Lock-number defined in EM91401 series. To prevent the unavoidable long distance call, then EM91401 inhibits the key entry during Tdly. Operating flow chart HKS=Lo 1 HF HKS=Hi HF On-hook state 2 4 On-hook Hand-free state HKS=Lo Off-Hook state 3 HKS=Hi HD HF HD HF Off-Hook Hand-free state 6 ON-Hook Off-Hook Hold-line state state Hold-line HF HD HKS=Hi HD HD HF 5 Off-Hook Hold-free state HKS=Lo <Note> : HF = Handfree HD = Hold Truth table Operating state Input/Output pin level HKS PO XMUTE HFO (1) On-hook, idle state H F F L (2) Off-hook line L F F L (3) Off-hook, HF line L F F H (4) On-hook, HF line H F F H (5) Off-hook, HD line L F L L (6) On-hook, HD line H F L L Note : F=floating (high impedance); H=logic “High”; L=logic “Low” level. HDO L L L L H H Music on Hold EM91401 series built-in a melody generator to generate dual-tone music on DTMF output pin. The music is designed for telephone line at line holding. * This specification are subject to be changed without notice. 10.1.1997 7 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim 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 EM32100 (or EM32116 ). The SDO signal consists of two start bits, six data bits and two stop bits. Each bit time is about 3.9 ms (256 Hz) and output sequences are following by start bits, data bits (LSB to MSB) and stop bits. ready 0 start bits 1 bit 0 bit2 bit3 data bits bit1 bit4 1 0 bit5 stop bits SDO Keypad Encoded table: ♦ Digital key (b5,b4=0,0) keypad 1 2 3 4 5 6 7 8 9 output b3,b2,b1,b0 0001 0010 0011 0100 0101 0110 0111 1000 1001 Display 1 2 3 4 5 6 7 8 9 0 “*”/T 1010 1011 0 # P */”T” 1100 1101 1110 P ♦ Function key (b5,b4=1,0) keypad F output b3,b2,b1,b0 1111 Display clear all display ∗ Keypad,SDO format and LCD display reference table: Keypad 1 2 3 4 5 6 7 8 9 0 “*”/T # P */”T” F bit5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 bit4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 bit3 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 bit2 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 bit1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 bit0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Display 1 2 3 4 5 6 7 8 9 0 P clear all display LOCK function The EM91401 serial provides the LOCK function to inhibit toll dialing operation. Connecting a resistor on COL1 * This specification are subject to be changed without notice. 10.1.1997 8 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P pin to 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 is fixed to 000 automatically. The lock function is disabled when the password is equal to 000 . How to setup password • Set LOCK function to password control mode. (Connects a resistor on COL1 pin to VSS) • Off hook (or turn on HF function) • Push : # , # , ops1 , ops2 , ops3 , nps1 , nps2 , nps3 , # . If the ops1~ops3 are the same with current password, then nps1~np3 will be stored in the dialer to replace current password. Otherwise, the current password can not be updated. All the numbers pressed in the password setup procedure can not be dialed out when current password is not equal to 000. If the current password are equal to 000, then only the first number “#” will be dialed out. Normal dialing : Set lock function to none lock mode (without resistor connected to COL1 pin) or set password equal to 000. In this case, the dialer is operated in normal mode and all functions work at unlimitation. Dialing via LOCK function Conventional key lock mode. (Connects a resistor on COL1 pin to VDD) • Off hook (or turn on HF function) • Keying : d1 , d2 , .. , dn . If the first number (d1) is the same with the lock number that optioned in table, then all entry numbers can not be dialed out and keyboard will be inhibited until on to off hook once again or flash. If the first number is not equal to lock number, all the entry numbers will be dialed out. Password control mode. (Connects a resistor on COL1 pin to VSS) • Off hook (or turn on HF function) • Keying : ([ # , ps1 , ps2 , ps3 ] + telephone number.) The numbers in the [ ] symbol could be omitted. The number “#” will be inhibited when the current password is not equal to 000,and ps1 , ps2 , ps3 work at the checking state, not to be dialed out. Other descriptions are as on following : ◊ Incorrect password entry. The telephone numbers can not be dialed out. ◊ Password is omitted . If the first digit of telephone numbers is the same with the lock number, all of the telephone numbers can not be dialed out and keyboard will be inhibited until On to Off hook once again or flash. If the first digit is not equal to the lock number then the telephone numbers will be dialed out entirely. ◊ Correct password entry. The telephone numbers can be dial out no matter what lock number is. Ring detector The Ring detector is designed to prevent illegal dialing from pocket dialer. Following the procedures ( i,ii,iii ), this dialer will detect DRING pin to control RMUTE output level. If DRING is detected a “Low” level, the RMUTE stays “High impedance”. If DRING is detected a “High” level, the RMUTE will output “Low” until keyboard entry. In actual application of the RMUTE pin is recommended connection to microphone of the * This specification are subject to be changed without notice. 10.1.1997 9 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR ry elimina r P phone handset to prevent that the dialing signal (DTMF) is coupling by the Microphone of the phone handset. (such as pocket dialer) i. In idle state, HKS is from “High” to “Low” (pick up handset action). ii. In idle state, turn on handfree function. iii. The flash operation ( F key ). ABSOLUTE MAXIMUM RATINGS(Ambient temperature is 25 °C, all voltages referenced to VSS) Items Sym. Power supply voltage Input voltage range VDD VIN Operating temperature Storage temperature Power consumption TOPR TSTO PD Rating Unit 6.0 Vdc VSS-0.3V ~ VDD+0.3V -25 ~ +70 -55 ~ 150 500 V V °C °C mW ELECTRICAL CHARACTERISTICS (Ambient temperature is 25 °C, VDD=2.5V unless otherwise noted, all voltages referenced to VSS, Fosc=3.579545 MHz) Parameter Operating voltage Operating current(HKS=0) Memory retention current Standby current HKS, HFI & DRING pins: input voltage HFO & HDO pins source current PO, HFO, XMUTE, RMUTE & SDO pins: sink current PO, XMUTE, RMUTE and SDO pins: leakage current HFI pin input resistance DRING pin input resistance Keyboard scanning pins output current (except COL4/KT) COL4/KT source current sink current Sym. Pulse Tone Pulse Tone Pulse Tone HKS=1 HKS=0 HKS=1 HKS=0 Min. Typ. ViH ViL IoH IoL 2.0 2.0 0.8Vdd Vss 0.2 -0.2 IoH - - 2 200 0.2 0.2 200 100 10 400 - Idd Imrt Istby Rhfi Rdring IoH IoL IoH IoL * This specification are subject to be changed without notice. Max. Unit 5.5 V 5.5 0.15 0.3 0.3 0.5 mA 0.15 0.3 0.3 0.5 0.001 0.1 uA 0.001 0.1 1 10 uA 0.001 0.1 10 30 Vdd V 0.2Vdd mA mA ±0.001 uA 50 800 - KΩ KΩ uA mA Condition unload unload with pull up/down resistor * 8 HKS=1,Vdd=1V unload with pull up/down resistor * 8 Vo = 2.0 V Vo = 0.5 V Vo = Vdd Vhfi = Vss Vdeing=Vss Vksn=Vss Vksn=Vdd Vo=2.0V Vo=0.5V 10.1.1997 10 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P ELECTRICAL CHARACTERISTIC (Ambient temperature is 25°C, VDD=2.5V unless otherwise noted, all voltages referenced to Vss,Fosc=3.579545 MHz) Parameter ○ ○ ○ ○ Keyboard debounce time Key tone signal: frequency duration Pause time Pulse to Tone waiting time Flash time ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ Sym. Min. Typ. Tdb - 20 Fkt Tkt Tp Tpt Tf -0.2 0.5 142 1 5 96 96 600 30 3.6 3.6 600 100 80 300 20 10 40:60 33:66 800 500 160 2 -30 98 98 Pulse rate PSR Make/Break ratio MBR Inter-digit pause time Tidp DTMF pin: sink current DTMF signal DC level DTMF signal: ac level pre-emphase distortion load resistance Minimum tone duration Minimum inter-tone pause Melody output signal: main tone ac level IoL Vdc Vdtmf Twist THD ZL Tp Titp ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ - Vstac Thdrdb 37 - (-23.3) 53 (-25.3) 42 93 Tbit Tdly 3.8 - 3.9 300 ○ ○ Vmtac Sub-tone HD key release hold function debounce time SDO every bit time Off-Hook delay time Max. Unit ○ ○ ○ 48 ○ ○ ○ ○ * This specification are subject to be changed without notice. ○ ○ ○ ○ ○ ○ ○ ms Hz ms sec. sec. Row3B, Row4B=NR, NR ms Row3B, Row4B=NR, R-Vss Row3B,Row4B=R-Vss, NR Row3B,Row4B=R-Vss,R-Vss pps Row1 = R-Vdd Row1 = R-Vss % Row2 = NR Row2 = R-Vss ms PSR = 10 pps PSR = 20 pps mA Vdtmf = 0.5 V 0.75 Vdd Vdd = 2.0V ~ 5.5V 180 mVrms Row group 3 dB Column - Row -23 dB RL = 5 KΩ KΩ THD < − 23dB 100 100 ms Memory dialing ○ ○ Condition ○ ○ ○ ○ ○ 58 ○ ○ ○ ○ 47 4.1 - ○ (dBm) mVrms Vdd =2.0V ~ 5.5V (dBm) mVrms Vdd =2.0V ~ 5.5V ms ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ms ms 10.1.1997 11 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim DTMF output frequency (fosc = 3.579545 MHz) Keyboard scan pin ROW1 (f1) ROW2 (f2) ROW3 (f3) ROW4 (f4) COL1 (f5) COL2 (f6) COL3 (f7) CCITT standard (Hz) 697 770 852 941 1209 1336 1477 * This specification are subject to be changed without notice. Actual output (Hz) 699.1 766.2 847.4 947.9 1215.8 1331.6 1471.8 Deviation (%) 0.30 0.49 -0.53 0.73 0.56 -0.32 -0.35 10.1.1997 12 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P TIMING DIAGRAM HKS 2 KEY IN 3 Tdb KT Tkt XMUTE HDO SDO Tm PO Tidp DTMF T T T T b m b m Tidp OSC. Tdly Hi-impedance Figure 1. Pulse mode operating timing HKS KEY IN KT 2 3 Tdb XMUTE HDO SDO PO Td Titp Titp DTMF OSC. Hi-impedance Figure 2. DTMF mode operating timing * This specification are subject to be changed without notice. 10.1.1997 13 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim LNB=2,3 HKS KEY IN RD/P Tdb KT Tkt XMUTE HDO SDO Tm PO Tidp DTMF Tidp T T T T b m b m OSC. Tdly Hi-impedance Figure 3. Pulse mode LNB redial timing LNB=2,3 HKS RD/P KEY IN Tdb KT Tkt XMUTE HDO SDO PO Td Titp Td Titp DTMF OSC. Tdly Hi-impedance Figure 4. DTMF mode LNB redial timing * This specification are subject to be changed without notice. 10.1.1997 14 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P HKS 2 KEY IN RD/P 3 KT XMUTE Tp HDO SDO PO Tidp Tidp DTMF OSC. Hi-impedance Figure 5. Pause key operating timing HKS 2 KEY IN */T 3 4 KT XMUTE Tpt HDO SDO PO DTMF OSC. Hi-impedance Figure 6. Pulse to Tone (P→T) operating timing HKS KEY IN F Tdb KT XMUTE HDO SDO PO Tf Tfp=300ms DTMF OSC. Hi-impedance Figure 7. Flash key operating timing * This specification are subject to be changed without notice. 10.1.1997 15 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim HKS 2 KEY IN Tdb KT SDO sT sT b0 0 1 0 L b1 b2 b3 b4 b5 spT spT 1 Tbit 0 0 0 0 0 1 M Hi-impedance <Note>L=LSB,M=MSB, sT=START bit time, spT=STOP bit time Figure 8. SDO operating timing HKS HD HF KEY IN HF HD HD HD HF HD HD @ 93 ms HFO Thdrdb HDO XMUTE SDO PO MELODY Hi-impedance @ : It can be triggled by extension telephone set for hold function release Figure 9. HF and HD operating timing HFI or HKS HF 5 KEY 0 KT Tdly OSC. "0" digit dialing time Hi-impedance Figure 10. Off-Hook delay time * This specification are subject to be changed without notice. 10.1.1997 16 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P Toff RING Ton DRING HKS RMUTE Figure 11. Timing of receiving an incoming call * The external ring detection circuit must send a low signal at the total ring cycle (Ton and Toff) RING DRING HKS RMUTE Figure 12. Timing of making an outgoing call * This specification are subject to be changed without notice. 10.1.1997 17 * This specification are subject to be changed without notice. RING TIP C? .1U R? 470 4 3 1 2 22U/50V C? BRIDGE D? R? 4K7 C? 1U VDD ZD? 27V PC817 U? 2 BRIDGE D? 3 1 3 A42 VDD 2 Q7 R35 2K2 0 */T R? 560k 8 7 # 6 5 4 9 3 2 1 R? 560k D5 1 100K R48 R43 100K R37 1N4148 1 D6 R? 560k RD/P F HD 560k R? 560K R? 560K R? 560K R? 1N4148 47K 1N4148D19 2 1 2 JUMPER JP? R68 100K R69 47K 2 1 D14 1N4148 JUMPER JP? DRING R? 1.2M 220K Q6 R47 2 A92 1 3 OFFHOOK SW1A 10M 1 ONHOOK R54 1 2K7 R49 2 47K .1U C25 3 D7 1N4148 R52 220K R57 2 2 Q4 C945 1 R36 470K .1u C24 220uF C31 5V1 D13 C16 .001U 1K5 R33 EM91401DK BUZZER BZ? C? 10p Y? C? 10p 3.58MHz 3 1 2 R45 47K R67 Q19 1815 R? 560K K? HF SDO EM32100 CE .1uF Q9 C945 1 C21 2 JUMPER JP? C22 1uF 10K 3 R46 JP10 JP9 EM32100 LCD DRIVER 22K HDO R44 R65 220K HDO HFO R55 470K HANDSET 6 HOOK HANDFREE 4 SW1B U? EM91403DK VCC C23 47U 50 2 Q18 1815 1 DRING C17 .01U 3 22 21 20 19 18 17 16 15 14 13 12 SDO HDO COL4/KT PO COL3 ROW4 COL2 ROW3 COL1 ROW2 XIN ROW1 XOUT HKS XMUTE VDD VSS DTMF HFI HFO DRING RMUTE BT? 1.5V 3 D16 2 1 2 ROW1 47K R56 3 NETWORK SPEECH 2 TO 4 LINE COL4/KT Q10 C945 1N4148 1N4148 2 2 D17 1N4148 1 D18 1 1 1 2 Q14 C945 CE AMPLIFER POWER AUDIO APPLICATION CIRCUIT 1 2 3 4 5 6 7 8 9 10 11 5 TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR EM91401 SERIES inary Prelim EM91401 series Application circuit 10.1.1997 18 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P EM32100 Application Circuit : 8/10 Digits LCD Pannel 3 3 3 3 3 3 3 2 2 2 2 2 6 5 4 3 2 1 0 9 8 7 6 5 U? S S S S N S S S S S S S E E E E C E E E E E E E G G G G G G G G G G G 6 7 8 9 1 1 1 1 1 1 1 0 1 2 3 4 5 6 37 38 39 SEG5 SEG4 SEG3 SEG2 SEG1 40 41 42 43 44 45 SW?A 46 47 48 R? 1 2 3 EM32100 COM1 COM2 COM3 TEST2 TESTI 22 21 SEG22 SEG23 SEG24 VEE VN F32H VP NC 100K 24 23 SEG17 SEG18 SEG19 SEG20 SEG21 NC SW HOOK M M S H V X 20 19 18 17 16 15 14 13 2 E X 4 N O V / R C? R? VDD SDI SDO VCC 200K R? HKS .1u VCC 1 1 1 1 2 3 4 5 6 7 8 9 0 1 2 R? 220K C? .1u S S D K D I N U S 1 T N 1 2 I S D N C T S 2 C C 220K Q? DIALER 3 HDO K? 2 D? HFO 1 C945 1 R? 3 2 2 Q? C945 R? VSS 100K DIODE D? 1 BT? 1.5V 1 47K 2 K? K? K? 32768 HZ 1U DIODE D? 1 C? C? 2 20 P C? 20 p DIODE Package type : QFP 48 pins or chip form provided * This specification are subject to be changed without notice. 10.1.1997 19 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim EM32116 Application Circuit : SDI SDI 20p VDD ON 1 ON 1 12 1 2 OFF 3 OFF 3 24 3 2 470K 2 CALENDAR RTC 20p .1uF .1uF MS2 32768Hz HOUR .1uF Hook Switch detection circuit MS1 .1uF LINE 2 1 VDD 2 3 VDD 3 C945 SW HOOK 1 100K X X V V V V V V H S MMF T OI S CC 3 2 DKDS S 3 E .1U UNS 2 1 T COM3 COM2 COM1 COM0 1.5V DS I 2 1 2 S 24/12 ENRTC ENCLND HT Z1 TEST MODE TEST2 BATCKOF BATLOW EM32116 SEG0 SEG1 SEG2 SEG3 SEG31 SEG30 SEG4 SEG5 SEG29 SEG28 SEG6 SEG7 SEG27 SEG26 SEG8 SEG9 S SSS SS S S S SS SSSS S EEEEEEEEEEEEEEEE GGGGGGGGGGGGGGGG 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 CCCCS S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S OOOOEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE MMMM G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G 3 2 1 0 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 9 8 7 6 5 4 3 2 1 0 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 LCD110 Package type : QFP 64 pins or chip form provided * This specification are subject to be changed without notice. 10.1.1997 20 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P PACKAGE INFORMATION Example : EM (1) 91401 P (2) (3) (1) ELAN MICRO. pefix (2) Type number (3) Package code: P→PDIP K→Skinny R→SDIP 18/20/28 Lead Plastic Package E1 1 D E A A1 L C B e B1 eB 18 PDIP DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 5.334 0.381 0.356 0.558 1.150 1.778 0.204 0.381 22.35 23.37 7.620 8.255 6.096 7.112 2.286 2.794 10.92 2.921 4.064 20 PDIP INCHES MILIMETERS INCHES MIN. MAX. DIM MIN. MAX. MIN. MAX. .210 A 5.334 .210 .015 A1 0.381 .015 .014 .022 B 0.356 0.558 .014 .022 .045 .070 B1 1.150 1.778 .045 .070 .008 .015 C 0.204 0.381 .008 .015 .880 .920 D 25.40 26.67 1.000 1.050 .300 .325 E 7.620 8.255 .300 .325 .240 .280 E1 6.096 7.112 .240 .280 .090 .110 e 2.286 2.794 .090 .110 .430 eB 10.92 .430 .115 .160 L 2.921 4.064 .115 .160 * This specification are subject to be changed without notice. 28 PDIP DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 6.350 0.381 0.356 0.558 1.016 1.778 0.204 0.381 35.56 37.85 15.24 15.88 13.21 14.73 2.286 2.794 17.78 2.921 5.080 INCHES MIN. MAX. .250 .015 .014 .022 .040 .070 .008 .015 1.400 1.490 .600 .625 .520 .580 .090 .110 .700 .115 .200 10.1.1997 21 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary Prelim 22/24 Lead Plastic Package-Skinny E1 1 D E A A1 L C B e B1 eB 22 PDIP (skinny) DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 4.752 0.381 0.356 0.558 1.27 1.778 0.204 3.556 25.90 26.67 7.620 8.255 6.223 6.604 2.286 2.794 8.382 10.16 2.921 4.064 24 PDIP (skinny) INCHES MIN. MAX. .180 .015 .014 .022 .050 .070 .008 .014 1.02 1.05 .300 .325 .245 .260 .090 .110 .330 .400 .115 .160 * This specification are subject to be changed without notice. DIM A A1 B B1 C D E E1 e eB L MILIMETERS MIN. MAX. 4.572 0.381 0.356 0.558 1.27 1.778 0.204 0.381 31.24 32.26 7.620 8.255 6.223 6.731 2.286 2.794 8.636 9.652 2.921 4.064 INCHES MIN. MAX. .180 .015 .014 .022 .050 .070 .008 .015 1.23 1.270 .300 .325 .245 .265 .090 .110 .340 .380 .115 .160 10.1.1997 22 EM91401 SERIES TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR inary m i l e r P 42 SDIP Package E1 D E A A2 C A1 L D1 B e B1 eB 42 SDIP DIM A A1 A2 B B1 C D E1 e eB D1 L MILIMETERS MIN. MAX. 5.08 0.381 3.937 4.191 0.356 0.559 0.914 1.116 0.204 0.304 36.70 37.34 13.84 14.10 1.727 1.829 15.24 17.78 0 0.127 2.921 3.429 * This specification are subject to be changed without notice. INCHES MIN. MAX. 0.200 0.015 0.155 0.165 0.014 0.022 0.036 0.044 0.008 0.012 1.445 1.470 0.545 0.555 0.068 0.072 0.600 0.70 0 0.005 0.115 0.135 10.1.1997 23