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UNISONIC TECHNOLOGIES CO., LTD U9131X Preliminary CMOS IC www.unisonic.com.tw 1 of 11 Copyright © 2013 Unisonic Technologies Co., Ltd QW-R502-A34.a TONE/PULSE DIALER WITH REDIAL FUNCTION DESCRIPTION The UTC U9131X series are monolithic ICs that offer the dialing signals in either pulse or tone mode. The UTC U9131X series feature a redial memory. FEATURES * Uses 4×4 keyboard * Pulse-to-tone (P→T) keypad for long distance call operation * Easy operation with redial, flash, pause, and P→T keypads * 32 digits for redial memory * Flash, Pause, P→T (pulse-to-tone) can be stored as a digit in memory * Switchable dialing mode：DTMF/Pulse * Switchable beak/make ratio * Minimum tone output duration: 100mS * Minimum intertone pause: 100mS * On-chip power-on reset * Uses 3.579545MHz crystal or ceramic resonator SOP-18 ORDERING INFORMATION Ordering Number Package Packing Lead Free Halogen Free U9131XL-S18-T U9131XG-S18-T SOP-18 Tube U9131XL-S18-R U9131XG-S18-R SOP-18 Tape Reel U9131XAL-S18-T U9131XAG-S18-T SOP-18 Tube U9131XAL-S18-R U9131XAG-S18-R SOP-18 Tape Reel (1) T: Tube, R: Tape Reel (2) S18: SOP-18 (3) L: Lead Free, G: Halogen Free (4) refer to DIALER TYPE U9131XAL-S18-T (1)Packing Type (2)Package Type (3)Lead Free (4)Dialer Type DIALER TYPE The different dialers in the UTC U9131X series are shown in the following table: TYPE NO. PULSE (ppS) FLASH (mS) FLASH PAUSE (mS) PAUSE (S) U91312 10/20 600 600 2.0 U91314 10/20 73 140 3.6 U91316 10/20 600 600 3.6 U91312A 10/20 300 300 2.0 U91314A 10/20 100 100 3.6
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 2 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a PIN CONFIGURATION PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION 1-4 & 15-18 Column-Row Inputs The keyboard input may be from either the standard 4×4 keyboard or an inexpensive single contact (from A) keyboard. Electronic input from a μC can also be used. A valid key entry is defined as a single row being connected to a single column. 5 B/M The break make ratio is 60:40 if B/M=1 and is 66.6:33.3 if B/M=0. This pin has no function in DTMF mode. 7, 8 XT, XT A built-in inverter provides oscillation with an inexpensive 3.579545MHz crystal or ceramic resonator.
9 T/P MUTE
The T/P MUTE is a conventional CMOS N-channel open drain output. The output transistor is switched on during pulse and tone mode dialing sequence and flash break. Otherwise, it is switched off.
13 MODE
Pulling mode pin to VSS places the dialer in tone mode. Pulling mode pin to VDD places the dialer in pulse mode (10ppS). Leaving mode pin floating places the dialer in pulse mode (20ppS).
10 HKS
Hook switch input. HKS=1: On-book state. Chip in sleeping mode, no operation. HKS=0: Off-book state. Chip enabled for normal operation. The HKS pin is pulled to VDD by an internal resistor. 11 DP N-channel open drain dialing pulse output (Figure 1). Flash key will cause DP to go active in both pulse mode and tone mode.
12 DTMF
In pulse mode, remains in low state at all times. In tone mode, outputs a dual or single tone. Detailed timing diagram for tone mode is shown in Figure 2 (a, b). OUTPUT FREQUENCY Specified Actual Error % R1 697 699 +0.28 R2 770 766 -0.52 R3 852 848 -0.47 R4 941 948 +0.74 C1 1209 1216 +0.57 C2 1336 1332 -0.30 C3 1477 1472 -0.34 14, 6 V DD, VSS Power input pins.
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 3 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a BLOCK DIAGRAM ROW (R1 to R4) COLUMN (C1 to C4) RAM KEYBOARD INTERFACE DTMF D/A CONVERTER READ/WRITE COUNTER LOCATION LATCH XT XT B/M MODE HKS SYSTEM CLOCK GENERATION LOGIC CONTROL PULSE LOGIC CONTROL T/P MUTE DP ROW & COLUMN PROGRAMMBLE COUNTER DATALATCH & DECODER
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 4 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT DC Supply Voltage V DD-VSS -0.3~+7.0 V Input/Output Voltage VIL V SS-0.3 V VIH V DD+0.3 V VOL V SS-0.3 V VOH V DD+0.3 V Power Dissipation P D 120 mW Operating Temperature T OPR -20~+70 °C Storage Temperature T STG -55~+125 °C Note: Absolute maximum ratings are those values be yond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. DC CHARACTERISTICS (VDD-VSS=2.5V, FOSC.=3.58MHz, TA=25°C, all outputs unloaded) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Operating Voltage V DD 2.0 5.5 V Operating Current I OP Tone 0.3 0.5 mA Pulse 0.15 0.3 mA Standby Current I SB HKS=0, No load, & No key entry 15 μA Memory Retention Current I MR HKS=1, V DD=1.0V 0.2 μA DTMF Output Voltage V TO Row group, R L=5KΩ 130 150 170 mVrms Pre-emphasis Col/Row, V DD=2.0~5.5V 1 2 3 dB DTMF Distortion T HD R L=5KΩ, VDD=2.0~5.5V -30 -23 dB DTMF Output DC Level V TDC R L=5KΩ, VDD=2.0~5.5V 1.0 3.0 V DTMF Output Sink Current I TL V TO=0.5V 0.2 mA DP Output Sink Current I PL V PO=0.5V 0.5 mA T/P MUTE Output Sink Current I ML V MO=0.5V 0.5 mA HKS I/P Pull-high Resistor R KH 300 K Ω Keypad Input Drive Current I KD V I=0V 30 μA Keypad Input Sink Current I KS V I=2.5V 200 400 μA Keypad Resistance 5.0 K Ω
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 5 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a AC CHARACTERISTICS PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Keypad Active in Debounce T KID 20 mS Key Release Debounce T KRD 20 mS Pre-digit Pause (Note 1) TPDP1 B/M=1 40 mS 10ppS B/M=0 33.3 Pre-digit Pause (Note 2) TPDP2 B/M=1 20 mS 20ppS B/M=0 16.7 Interdigit Pause (Auto dialing) T IDP 10ppS 800 mS 20ppS 500 Make/Break Ratio M/B B/M=1 40:60 % B/M=0 33:67 DTMF Output Duration T TD Auto Dialing 100 mS Intertone Pause T ITP Auto Dialing 100 mS Flash Break Time T FB U91314 73 mS U91314A 100 U91312A 300 U91312/U91316 600 Flash Pause Time T FP U91314A 100 mS U91314 140 U91312A 300 U91312/U91316 600 Pause Time T P U91312 2.0 S U91314/A/U91316 3.6 Notes: 1. Crystal parameters suggested for proper operation are Rs<100Ω, Lm=96mH, Cm=0.02pF, Cn=5pF, CI=18pF, FOSC=3.579545MHz ± 0.02%. 2. Crystal oscillator accuracy directly affects these times.
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 6 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a FUNCTIONAL DESCRIPTION Keyboard Operation C1 C2 C3 C4 R1 1 2 3 R2 4 5 6 F R3 7 8 9 P →T R4 * 0 # R/P * R/P：Redial and pause function key * F：Flash key * P→T：Pulse mode to tone mode Normal Dialin
1 OFF HOOK , D1 , D2 , … , Dn
- D1, D2, … , Dn will be dialed out. 2. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits. Redialing
1 OFF HOOK , D1 , D2 , … , Dn BUSY, COME ON HOOK , OFF HOOK , R/P
The RP Key can execute redial function only as the first key-in after off-hook; otherwise, it will execute pause function. Access Pause
1 OFF HOOK , D1 , D2 , … , R/P , D3 , … , Dn
- The pause function can be stored in memory. 2. The pause function is executed in normal dialing or memory dialing. 3. The pause function timing diagram is shown in Figure 3. Pulse-To-Tone (P→T)
1 OFF HOOK , D1 , D2 , … , Dn , R →T , D1’ , D2’ , … , Dn’
- If the mode switch is set to pulse mode, then the output signal will be: D1, D2, …, Dn, Pause, D1’, D2’, …, Dn’ (Pulse) (Tone) 2. If the mode switch is set to tone mode, then the output signal will be: D1, D2, …, Dn, P →T D1’, D2’, …, Dn’ (Pulse) (Pause) (Tone) 3. The dialer remains in tone mode when the digits have been dialed out and can be reset to pulse mode only by going on-hook. 4. The P→T function timing diagram is shown in Figure 4. Flash
1 OFF HOOK , F
- Flash key can be stored as a digit in memory. 2. The system will return to the initial state after the break time is finished. 3. The flash function timing diagram is shown in Figure 5.
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 7 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a TIMING WAVEFORMS HKS KEY IN DP T/P MUTE DTMF OSC. LOW TPDP TKID B M TIDP TIDP TIDP OSCILLATION OSCILLATION NORMAL DIALING Fig 1 (a). Pulse Mode Timing Diagram Fig. 1 (b). Pulse Mode Timing Diagram
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 8 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a TIMING WAVEFORMS(Cont.) Fig. 2 (a). Tone Mode Timing Diagram Fig. 2 (b). Tone Mode Auto Dialing Timing Diagram
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 9 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a TIMING WAVEFORMS(Cont.) Fig. 3 Pulse Function Timing Diagram Fig. 4 Pulse-to-tone Function Timing Diagram
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 10 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a TIMING WAVEFORMS(Cont.) F 4 TKID TFB TFP TTD TITP OSCILLATION HKS KEY IN T/P MUTE DTMF OSC. DP Fig. 5 Flash Function Timing Diagram
U9131X Preliminary CMOS IC UNISONIC TECHNOLOGIES CO., LTD 11 of 11 www.unisonic.com.tw Q W - R 5 0 2 - A 3 4 . a TYPICAL APPLICATION CIRCUIT OFF HOOK R5 10M - + TIP RING VR1 250V D1-D4 1N4004 SPEECH NETWORK 9013 R18 22K VDD UTC U91310 SERIES R4 R2 R1R3 VDD MODE DP DTMF HKS C1 C2 C3 C4 B/M VSS XT XT T/P MUTE 30P 3.58MHz 30P VDD PULSE TONE VDD 33K 3K3 A94 A42 ON HOOK 200K 1N4148 1N4148 5V1 100µF 470K 300K
9013 C10
0.1µF R10 10K C4 4µ7 C1815 R11 56 F
89 P T
0 # R/P UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.