TONE/PULSE DIALER WITH REDIAL KS58006 DTMF/PULSE switchable diale

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TONE/PULSE DIALER WITH REDIAL KS58006 DTMF/PULSE switchable diale

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KS58006
TONE/PULSE DIALER WITH REDIAL
KS58006 DTMF/PULSE switchable dialer with 32-digit redial which done using slide switch. necessary dual-tone frequencies derived from 3.579545 crystal ceramic resonator providing very high accuracy stability. required sinusoidal wave form each individual tone digitally synthesized chip. generated wave form very total harmonic distortion max). voltage reference generated chip which stable over operating voltage temperature range regulates single levels dual tone meet telephone industry specifications. CMOS technology applied this device, very power requirements high noise immunity, easy interface variety telephones requiring external components.
18-DIP-300A
FEATURES
Tone/Pulse switchable (slide switch) 32-digit capacity redial Automatic redialing last number dial PULSE DTMF with multiple auto access pause PABX auto-pause sec. keyboard available single tone operation Operating Voltage 5.5V Numbers dialed manually after redial cascadable stored additional numbers next redialing Uses inexpensive crystal ceramic resonator (3.579545MHz) Make/Break ratio (33.3 66.6) selectable Touch hooking (604ms) standby current Improved characteristic Improved redial memory quality
ORDERING INFORMATION
Device KS58006N Package 18-DIP-300A Operating Temperature 20°C 70°C
CONFIGURATION
KA58006
X'MUTE
TONE
Fig.
KS58006
TONE/PULSE DIALER WITH REDIAL
BLOCK DIAGRAM
OPERATION
KEYBOARD LOGIC MEMORY DIGIT
INPUT LOGIC OUPUT LOGIC X'MUTE MUTE
CONTROL LOGIC DTMF GENERATOR TONE
Fig.
ARRANGEMENT KEYBOARD
TONE FREQUENCIES
Input Specified 1209 1336 1477 Actual 699.1 766.2 847.4 948.0 1215.7 1331.7 1471.9 Error 0.31 0.49 0.54 0.74 0.57 0.32 0.35
KEYBOARD DESCRIPTION HOOKING (604ms) PAUSE (3.5 second) REDIAL
KS58006
TONE/PULSE DIALER WITH REDIAL
DESCRIPTION
Symbol Description Keyboard (R1, These inputs interfaced matrix keyboard. C1-C4 R1-R4 Hook high). C1-C4 inputs R1-R4 high HOOK low) which enables keyinput operation. oscillator starts running when keypress detected. Scanning signals presented both column inputs (TYP 437Hz) until input released. inputs compatible with standard 2-of-8 form single-contact keyboard. Debouncing provided avoid false entry (TYP 4mS). Hook Switch This input detects state hook switch contack. "Off Hook" corresponds condition. Hook" corresponds condition. Make/Break Ratio This input provides selection Make/Break ratio (33.3: 66.6/40:60) when connected VDD/VSS. Mode Select Input Pulse/DTMF mode selected shown following table. Initial Mode means state after going Hook "VSS") INITAL MODE Pulse Tone SWITCHING ENTRY MODE Input
Oscillator Input/Output
These pins provided connect external 3.58MHz crystal. Oscillator starts Hook) sustained unitl pulse DTMF signals finished. Power These power supply inputs. device designed operated 2.0V 5.5V DTMF Signal Output When valid keypress detected DTMF mode, appropriate high group frequencies generated which hybrid Dual Tone Output. Tone State pulse mode. MUTE Output MUTE Output "ON" Normally "OFF" "ON" during pulse DTMF dialing
VDD,
TONE
MUTE
channel open drain) Dial Pulse
normal output will "ON" during break "OFF" during make "OFF HOOK". output will "OFF" HOOK".
KS58006
TONE/PULSE DIALER WITH REDIAL
ABSOLUTE MAXIMUM RATINGS
Characteristic Supply Voltage Input Voltage Output Voltage Output Voltage Tone Output Current Power Dissipation Operating Temperature Storage Temperature Symbol (DXM) (TONE) Value 0.3, 0.3, (DP, MUTE, MUTE) Unit
ELECTRICAL CHARACTERISTICS
(VSS 3.5V, fX'TAL 3.579545MHz, 25°C, unless otherwise noted) Characteristic Operating Voltage Range Memory Retention Voltage Memory Retention Current Operating Current (TONE) Symbol (PULSE) 1.0V selected HS=VSS, outputs Unloaded selected. outputs unloaded 3.5V 2.5V 0.8VDD R1-R4 TONE ONLY 2.5V, 3.5V, 3.5V 3.5V -14.0 -14.0 -12.0 -12.0 Test Conditions 0.05 Unit
Standby Current
Output Current
IOL1 IOL2 tTIDP VO(TONE) dBCR tD(TONE)
MUTE
0.4V
0.2VDD
Input Voltage Input Current Valid Entry Time Release Time Tone Duration Tone Interdigit Pause Time Column Scanning Frequency Auto Access Pause Time Tone Output Ratio Column Tone Distortion Tone Output Delay Time
R1-R4, C1-C3, 3.5V, 2.5V,
KS58006
TONE/PULSE DIALER WITH REDIAL
APPLICATION INFORMATION KEYBOARD OPERATION
SINGLE MODE OPERATION Pulse Mode Operation Hook entry. This condition
pulse mode defined initial mode after going Hook latched under VDD.
Tone Mode Operation Hook
tone mode defined initial mode after going Hook latched entry. This condition under VSS.
Manual Dialing with Automatic Access Pause Hook
Multiple Pause entries accepted stored redial memory, each digit. Each provides seconds pause time, entry first digit after going Hook ignored. also used pause pulse mode. Pause cancelled with during pause time redialing. numeric key.
Redialing Hook
digits dialed with key. disabled while pulse DTMF signals transmitted. When more than digits stored, redial also inhibited. used pulse mode.
Inhibiting Redial Hook
Redial inhibited depressing twice after DTMF pulse signals transmitted.
KS58006
TONE/PULSE DIALER WITH REDIAL
PULSE/TONE SWITCHABLE OPERATION
Mode Switching Input
Hook
Switching Pulse Mode
Dn+1
DN+m
DTMF Mode
pulse mode initially defined VDD, mode switching DTMF mode accepted VSS, DTMF mode will after pulse mode finished. this mode, digits transmitted from Tone DTMF signals depressing corresponding keys. contained serially before after mode switching, following condition obtained.
Hook
Switching
Dn+1
Dn+m
Pulse Mode (Dn+1Pause)
DTMF Mode
Dn+1 depressed after pulse mode finished, DTMF mode will after last pulse signal generated. this mode,digits Dn+1 Dn+m transmitted from Tone DTMF signals depressing corresponding keys. digit Dn+1 depressed during dialing pulse signals. What happens? When DTMF
digit
mode set, Hold State will after last pulse signal finished. will flash indicate this Hold State, Dn+1 Dn+m stored redial memory DTMF DATA transmitted from Tone Out. When ready transmit DTMF data redial memory, depressed reset this Hold State
Dn+1 Dn+m
data serially transmitted.
KS58006
TONE/PULSE DIALER WITH REDIAL
TONE MODE TIMING (MDS VSS)
INPUT
tTID
TONE
tTIDP
X'MUTE
Fig.
PULSE MODE TIMING (MDS VDD)
INPUT
tching
TONE
tTIDP
X'MUTE
Fig.
KS58006
TONE/PULSE DIALER WITH REDIAL
TIMING DIAGRAM (for Switching Mode Operation Input)
INPUT
Switching
TONE
TIDP
X'MUTE
Fig.

TONE/PULSE DIALER WITH REDIAL KS58006 DTMF/PULSE switchable diale

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