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TONE/PULSE SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER EM91710


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EM91710A/B EM91710A/B
TONE/PULSE SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER
EM91710A/B Tone/Pulse switchable dialer which fabricated CMOS technology with wide operating voltage both tone pulse mode, consumes very memory retention current ON-HOOK state. FEATURES Tone/pulse switchable dialer. 32-digit last number redial memory. Pulse tone (PT) provided operation. Flash available. Minimum tone duration 98ms 83ms. Minimum intertone pause 98ms 83ms. Uses 3.579545 crystal ceramic resonator. Many options selected. Mode Tone) ratio Pause time (3.6s) Flash function (RESET) pause time (3.6s) Flash time (600ms; 300ms; 100ms; 80ms). Mixed dialing. Handfree function provided speaker phone application. Power reset circuit provided. Package DIP18 DIP16.
ASSIGNMENTS
EM91710A
OSCI OSCO XMUTE TONE OSCI OSCO XMUTE
EM91710B
TONE
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
KEYBOARD ASSIGNMENT *or*/T pulse mode, execute function. Flash key. Redial key. Pause key. pulse mode, execte function tone mode, execte key.
FUNCTIONAL BLOCK DIAGRAM
XMUTE
COL1
COLUMN INTERFACE CKT.
OUTPUT INTERFACE CKT. PULSE GENERATOR
COL2 COL3 COL4
KERNEL CONTROL CKT.
DECODER DATA LATCH MEMORY
OSCI OSCO
OSC.
DIVIDER
ROW/COLUMN PROGRAMMING COUNTER
ROW1 ROW2 ROW3 ROW4
INTERFACE CKT.
CONVERTER INPUT INTERFACE CKT.
TONE
DIALING SIGNAL OPTION
a]:Flash time: Row3 Row4 flash time(ms)
PULSE PULSE 10PPS 10PPS 40:60 33:66
Row1 Row2 MODE PULSE RATE
TONE TONE PULSE PULSE 20PPS 20PPS
c]:Tone function: Col1
Tone Duration
inter-Tone Pause
d]:Key type select Col2 *or*/T select
Note: NR:no resistance. resistance connect (820K typically) resistance connect
9.30.1997
This specification subject changed without notice.
40:60 33:66
EM91710A/B
TONE/PULES SWITCHABLE DIALER
DESCRIPTION
Symbol Function Provides keyboard scanning Keyboard scanning: LOW, column group stays "HIGH" stays group stays "LOW" state. compatible with standard dual contact matrix keyboard Figure 1b.), inexpensive single contact keyboard Figure 1a.), electronic input Figure 1c.). When "low", valid entry defined related Column connection electronic input; show Figure 1c). Activation more keys will result response, except single key. avoid keyboard bouncing error, this chip provides built-in debounce circuit. (The debounce time ms.) Column
Figure Single contact form keyboard configuration Column Figure Dual contact form keyboard configuration Column
Figure Electronic signal input keyboard configuration OSCI OSCO Oscillator input Oscillator output pins. 3.579545 oscillator formed built-in inverter inside this chip connecting 3.579545 crystal ceramic resonator across OSCI OSCO pins. (built-in feedback resistor capacitor) When "low", valid key-in turn this oscillator generates 3.579545 clock. Mute output pins. NMOS open drain output structure. output "low" state during dialing sequence (both Pulse Tone mode) otherwise this "high-impedance" Long (continue) Mute. Negative power supply pin. Positive power supply pin. Hook switch input pin. When handset ON-HOOK state, this must pulled "high" order disable dialing operation decrease power consumption. When OFF-HOOK state, must pulled "low" state function operation. Pulse output signal pin. NMOS open drain output structure. output "low" during pulse dialing Flash operation, otherwise this output "floating".
9.30.1997
XMUTE
This specification subject changed without notice.
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
Symbol TONE
Function Dual Tone Multi-frequency output pin. TONE mode, when entry digit (include key), this will sent corresponding DTMF signal. TONE provides minimum tone duration (tTD),& minimum intertone pause time support rapid key-in. key-in time less than DTMF signal will last otherwise tone duration will last long pressed. Handfree input control pin. Toggle input sturcture, falling edge trigger. used enable disable Handfree function. With waveshaped built-in Schmit trigger, bounce input eliminated external debounce circuit. built-in pull resistor 200K typical. Handfree output pin. Inverter output structure (normally "low", active "high"). When active, Handfree function will enabled (HFO=1) disabled (HFO=0). When Handfree function enable (HFO=1), after OFF-HOOK action, reset Handfree function return "low" state.
FUNCTION DESCRIPTION
Keyboard Operation Symbol definitions: D1.Dn DP1. Dt1.Dtn OFF-HOOK enable Hand Free function. ON-HOOK disable Hand Free function. Digit key; 1,2,3,4,5,6,7,8,9,0,*,# (C1.Cn same D1.Dn Pulse digit 1,2,3,4,5,6,7,8,9,0, (CP1. same DP1. DPn). Tone digit 1,2,3,4,5,6,7,8,9,0,*, (Ct1.Ctn same Dt1.Dtn). Flash time. Pause time. Pulse Tone wait time. Pause time flash. Pause time redial. Last number redial buffer.
Normal Dialing Digit Dialing Procedure D1,D2 Dial Dt1, tone mode Dial Dp1, pulse mode
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
Dialing with flash Procedure F,D1,D2 Dial Dt1,Dt1 tone mode Dial tF,Dp1,Dp1 pulse mode Dialing with Procedure .,PT, Dial Dp1, Dp2, tPT, pulse mode ,PT, Note digit over maximum digit stored LNB, then inhibited even after on/off hook. Mixed dialing Procedure .,PT, D9,D10, Dial Dp1, Dp2, tPT, Dt9,Dt10 ,PT, D9,D10 Redial Procedure Dial Dt1, Dt2, tone mode Dial Dp1, Dp2, pulse mode Note digit over maximum digit stored LNB, then inhibited. Pause Function Procedure Dial Dial .Dn, Dt1, Dt2, tone mode Dp1, Dp2, Dpn,tp, .Cpn pulse mode
Flash Function Reset Procedure Dial Dial .Dn, Dt1, Dt2, tF,Ct1 tone mode Dp1, Dp2, Dpn, tF,Cp1 .Cpn pulse mode
Handfree function operation: execute Handfree function When "low", active Handfree function will enabled (HFO="HIGH"). Reset Handfree function: OFF-HOOK action. When HFO="high", active again Handfree function will reset (HFO="LOW").
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
Operating flow chart Handfree
INITIAL
LINE(1)
LINE
LINE
STATE INITIAL STATE LINE LINE LINE
XMUTE
Note Pressed
Floating (Hi-impedance)
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
TEST CIRCUIT
Operation current
Standby current
BOARD
MODE
COUNTER METER TONE
Tone output voltage
SPECTRUM ANALYZER
TONE
Tone distortion
KEYBOARD ENTRY
KEYBOARD
ENTRY
DIST.(dB)= 20log
(V1)**2+(V2)**2+.+(Vn)**2 (VL)**2+(VH)**2
V1.Vn extraneous frequencies (ie, inter modulation harmonic) components 500Hz 3400Hz band. VL,VH individual frequency components DTMF signal Whether keyboard pushed refer TONE mode time diagram
Pulse output sink current(
open drain structure)
Flash
Keypad input
VEXT
MODE
Column
MODE
Isink=I/(1-Duty Cycle) current measured from ampere meter. mean others column row.
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
ABSOLUTE MAXIMUM RATINGS (Ambient Temperature 25°C, voltage referenced VSS.
Parameter Power Supply Voltage Input Voltage Range Operating Temperature Storage Temperate Power Dissipation Sym. TOPR TSTO Ratings -0.3 ~125 Unit
ELECTRICAL CHARACTERISTICS (Ambient Temperature 25°C, voltage referenced 2.5V, unless otherwise noted.)
(General purpose specification, fosc. 3.579545 MHz)
Parameter Operating Voltage
Sym.
Conditions Tone Pulse Memory retension Tone OFF-HOOK, Keypad entry Pulse ON-HOOK, Keypad entry ON-HOOK, 1.0V
Min. 0.7VDD
Typ.
Max. 0.3VDD
Unit
Operating Current Standby Current Memory retention current Control input voltage XMUTE leakage current sink current input current Keyboard scanning drive current sink current Key-in debounce time input resistor drive current sink current
Imth Imtl Ihks Ikbd Ikbs Rhfi
Vxmute 6.0V Vxmute 0.5V Vhks 2.5V 2.5V, Vhfi=0
Ihdoh Vhfo 2.0V Ihdol Vhfo 0.5V
Input voltage keyboard scanning (Row group, Column group).
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
ELECTRICAL CHARACTERISTICS (II) (Ambient Temperature 25°C, voltage referenced 2.5V, unless otherwise noted
(Pulse mode specification, fosc. 3.579545 MHz)
Parameter Pulse output pin,SDO leakage current sink current Pulse rate Make/Break ratio Pre-digit Pause Inter-digit Pause
Sym. Ipoh Ipol TM:TB tPDP tIDP
Conditions 2.5V 0.5V
Min.
Typ. 40:60 33:66
Max.
Unit
ratio 40:60 ratio 33:66 Pulse rate 10pps Pulse rate 20pps
ELECTRICAL CHARACTERISTICS (III) (Ambient Temperature 25°C, voltage referenced 2.5V, unless otherwise noted.)
(TONE mode specification, fosc. 3.579545 MHz)
Parameter TONE output level sink current level Load resistor DTMF signal: pre-emphasis *distortion Minimum tone duration Minimum intertone pause
Sym. Vdtmf twist Dist. tITP
Conditions 2.0V~5.5V Vdtmf 0.5V group, Dist. -23dB 2.0~5.5V, Column-Row group Auto redial Auto redial
Min.
Typ.
Max. 0.7VDD
Unit mVrms
0.5VDD
98/83 98/83
Distortion (dB) [(V12 V32+.+Vn) [(VL2 group Column group signal. Harmonic signal 3500 Hz).
Actual frequency output (fosc. 3.579545 MHz) KEYBOARD SCANNING STANDARD (Hz) 1209 1336 1477 This specification subject changed without notice.
OUTPUT (Hz) 1216 1332 1472
DEVIATION +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34
9.30.1997
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
XMUTE
TONE
OSCO
High impedance NORMAL DIALING
Figure Tone Mode Timing Diagram
XMUTE
TONE OSCO
High impedance NORMAL DIALING
Figure Pulse Mode Timing Diagram This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
P->T
XMUTE
TONE
tIDP
OSCO
High impedance
Figure Timing Waveform mixed dialing Operation entry)
XMUTE
TONE OSCO
tITP
High impedance AUTO DIALING
Figure Tone Mode Redial Timing Diagram This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
XMUTE XMUTE
TONE OSCO
High impedance Figure Pulse Mode Redial Timing Diagram
*PULSE MODE: XMUTE
TONE OSCO *TONE MODE: XMUTE TONE OSCO
tIDP
High impedance
Figure Pause operating timing This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
XMUTE
TONE OSCO
High impedance Figure Flash operation timimg
This specification subject changed without notice.
9.30.1997
EM91710A Application Example
IN4004*4 100K HOOK MPSA92 IN4148 240K 330K 120V MPSA42 IN4148 100µ/16V Z.D. IN4148
APPLICATION CIRCUIT
Ring
220K
This specification subject changed without notice.
100K 470K C945 100µ
100K
TONE
WIRE WIRE SPEECH NETWORK
EM91710A
XMUTE
OSCI OSCO
HANDSEET
3.579545MHz 820k*6
TONE/PULSE SWITCHABLE DIALER
9.30.1997
TONE 20PPS 10PPS
EM91710A/B
EM91710B Application Example
IN4148
IN4004*4 100K HOOK MPSA92 120V
APPLICATION CIRCUIT
330K
0.1µF 240K C945 C945 .02µ 100K 100µ 470K 200K IN4148
Ring
C945
TONE
20PPS
10PPS
This specification subject changed without notice.
TONE 100K
OSCI 3.579545
EM91710B
XMUTE
WIRE SPEECH NETWORK AUDIO AMPLIFIER
OSCO
HANDSET
TONE/PULES SWITCHABLE DIALER
9.30.1997
820K*6
EM91710A/B
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
PACKAGE INFORMATION
Example 91710 ELAN MICRO. pefix Type number Package code: PPDIP KSkinny RSDIP Lead Plastic Package
PDIP
MILIMETERS MIN. MAX. 5.334 0.381 0.356 0.558 1.150 1.778 0.204 0.381 19.05 20.07 7.620 8.255 6.096 7.112 2.286 2.794 10.92 2.921 4.064 INCHES MIN. MAX. .210 .015 .014 .022 .045 .070 .008 .015 .750 .790 .300 .325 .240 .280 .090 .110 .430 .115 .160
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
18/20/28 Lead Plastic Package
PDIP
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
PDIP
INCHES MILIMETERS INCHES MIN. MAX. MIN. MAX. MIN. MAX. .210 5.334 .210 .015 0.381 .015 .014 .022 0.356 0.558 .014 .022 .045 .070 1.150 1.778 .045 .070 .008 .015 0.204 0.381 .008 .015 .880 .920 25.40 26.67 1.000 1.050 .300 .325 7.620 8.255 .300 .325 .240 .280 6.096 7.112 .240 .280 .090 .110 2.286 2.794 .090 .110 .430 10.92 .430 .115 .160 2.921 4.064 .115 .160 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
PDIP
INCHES MIN. MAX. .250 .015 .014 .022 .040 .070 .008 .015 1.400 1.490 .600 .625 .520 .580 .090 .110 .700 .115 .200
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULSE SWITCHABLE DIALER
22/24 Lead Plastic Package-Skinny
PDIP (skinny)
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 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
PDIP (skinny)
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
This specification subject changed without notice.
9.30.1997
EM91710A/B
TONE/PULES SWITCHABLE DIALER
SDIP Package
SDIP
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 0.127 2.921 3.429 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 0.005 0.115 0.135
This specification subject changed without notice.
9.30.1997

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