Silan Semiconductors SC91310 Series TONE / PULSE DIALER WITH REDIAL FUNCTION DESCRIPTION The SC91310 series are monolithic ICs that provide the necessary signals for either pulse or tone dialing. The SC91310 series feature a redial memory. FEATURES *DTMF / Pulse switchable dialer *32 digits for redial memory *pulse-to-tone (P→T) keypad for long distance call operation *Break / Make ratio is selectable by pin option DIP-18 *Uses 4x4 keyboard *Easy operation with redial, flash, pause, and P→T keypads *Flash, pause, P→T (pulse-to tone) can be stored as a digit in memory *Minimum tone output duration:100ms *minimum intertone pause: 100ms *On-chip power-on reset *Uses 3.579545 MHz crystal or ceramic resonator *Packaged in 18-pin plastic DIP ORDERING INFORMATION (The different dialers in the SC91310 series are shown in the following table) Type No. Pulse(pps) Flash(ms) Flash pause(ms) SC91312/A 10/20 600/300 600/300 Pause(s) 2.0 SC91314/A 10/20 73/100 140/100 3.6 SC91316 10/20 600 600 3.6 PIN CONFIGURATIONS C1 1 18 R4 C2 2 17 R3 C3 3 16 R2 C4 4 15 R1 B/M 5 VSS 6 13 MODE XT 7 12 DTMF XT 8 11 DP T/P MUTE 9 10 HKS SC91310 14 VDD HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 1 2002.12.03 Silan Semiconductors SC91310 Series BLOCK DIAGRAM HKS 10 B/M 5 MODE XT XT 7 8 SYSTEM CLOCK GENERATION 13 R1 15 R2 16 R3 17 R4 18 C1 1 C2 2 C3 3 C4 4 DTMF 12 READ/WRITE COUNTER KEYBOARD INTERFACE CONTROL LOGIC PULSE CONTROL LOGIC 9 11 T/P MUTE DP RAM LOCATION LATCH D/A CONVERTER ROW&COLUMN PROGRAMMABLE COUNTER DATA LATCH& DECODER ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Value DC Supply Voltage VDD-VSS -0.3~7.0 V VIL VSS-0.3 V Input / Output Voltage Unit VIH VDD+0.3 V VOL VSS-0.3 V VOH VDD+0.3 V Power Dissipation PD 120 mW Operating Temperature Topr -20~+70 °C Storage Temperature Tstg -55~+125 °C Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 2 2002.12.03 Silan Semiconductors SC91310 Series DC ELECTRICAL CHARACTERISTICS (Tamb=25~70°C, VDD~VSS=2.5V, fosc=3.58MHz, all outputs unloaded) Parameter Symbol Operating Voltage VDD Operating Current IOP Conditions Min Typ Max Unit 2.0 -- 5.5 V Tone -- 0.3 0.5 mA Pulse -- 0.15 0.3 mA -- -- 15 µA HKS =0, No load, Standby Current ISB & No key entry Memory Retention Current IMR HKS =1, VDD=1.0V -- -- 0.2 µA DTMF Output Voltage VTO Row group, RL=5kΩ 130 150 170 mVrms Col/Row, VDD=2.0~5.5V 1 2 3 dB Pre-emphasis DTMF Distortion THD RL=5kΩ, VDD=2.0~5.5V -- -30 -23 dB DTMF OUTPUT DC Level VTDC RL=5kΩ, VDD=2.0~5.5V 1.0 -- 3.0 V TMF Output Sink Current ITL VTO=0.5V 0.2 -- -- mA DP Output Sink Current IPL VPO=0.5V 0.5 -- -- mA T/P MUTE Output Sink Current IML VMO=0.5V 0.5 -- -- mA HKS I/P Pull-high Resistor RKH -- 300 -- kΩ Keypad Input Drive Current IKD VI=0V 30 -- -- µA Keypad Input Sink Current IKS VI=2.5V 200 400 -- µA -- -- 5.0 kΩ Keypad Resistance HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 3 2002.12.03 Silan Semiconductors SC91310 Series AC ELECTRICAL CHARACTERISTICS Parameter Symbol Keypad Active in Debounce TKID Key Release Debounce Pre-digit Pause Pre-digit Pause 1 2 Interdigit Pause (Auto dialing) Make / Break Ratio Conditions TKRD Min Typ Max Unit -- 20 -- mS mS -- 20 -- TPDP1 B/M=1 -- 40 -- 10pps B/M=0 -- 33.3 -- TPDP2 B/M=1 -- 20 -- 20pps B/M=0 -- 16.7 -- 10pps -- 800 -- 20pps -- 500 -- TIDP M/B B/M=1 -- 40:60 -- B/M=0 -- 33:67 -- mS mS mS % DTMF Output Duration TTD Auto Dialing -- 100 -- mS Intertone Pause TITP Auto Dialing -- 100 -- mS SC91314 -- 73 -- SC91314A -- 100 -- SC91312A -- 300 -- Flash Break Time Flash Pause Time Pause Time TFB TFP TP SC91312 / SC91316 -- 600 -- SC91314A -- 100 -- SC91314 -- 140 -- SC91312A -- 300 -- SC91312 / SC91316 -- 600 -- SC91312 -- 2.0 -- SC91314A / SC91316 -- 3.6 -- mS mS S Note: 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. HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 4 2002.12.03 Silan Semiconductors SC91310 Series PIN DESCRIPTION Pin No. 1~4 & 15~18 Pin Name I/O Description The keyboard input may be from either the standard 4x4 keyboard or an ColumnRow Inputs I inexpensive single contact (form 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. 7,8 XT, XT I,O 9 T/P MUTE O A built-in inverter provides oscillation with an inexpensive 3.579545 MHz crystal or ceramic resonator. 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. Pulling mode pin to Vss places the dialer in tone mode. Pulling mode pin to VDD 13 MODE I places the dialer in pulse mode (10 pps). Leaving mode pin floating places the dialer in pulse mode (20 pps). Hook switch input. HKS = 1: On-hook state. Chip in sleeping mode, no 10 HKS O operation. HKS = 0: Off-hook state. Chip enabled for normal operation. The HKS pin is pulled to VDD by an internal resistor. 11 DP O N-channel drain dialing pulse output (Figure 1). Flash key will cause DP to go active in both pulse mode and tone mode. 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(Hz) 12 DTMF O 14,6 VDD, Vss I 5 B/M I 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 Power input pins. The break make ratio is 60:40 if /M = 1 and is 66.6:33.3 if B/M = 0. This pin has no function in DTMF mode. HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 5 2002.12.03 Silan Semiconductors SC91310 Series FUNCTION DESCRIPTIONS 1. KEYBOARD OPERATION C1 C2 C3 1 2 3 C4 4 5 6 F R2 7 8 9 P→T R3 * 0 # R/P R4 R1 * F: Flash key * R/P: Redial and pause function key * P→T: Pulse mode to tone mode 2. NORMAL DIALING OFF HOOK , D1 , D2 , … , Dn 1) 2) D1, D2, …, Dn will be dialed out. Dialing length is unlimited, but redial is inhibited if length oversteps 32 digits. 3.REDIALING OFF HOOK , D1 , D2 , … , Dn BUSY , COME ON HOOK , OFF HOOK , R/P The R/P key can execute redial function only as the first key-in after off-hook; otherwise, it will execute pause function. 4. ACCESS PAUSE OFF HOOK , D1 , D2 , R/P , D3 , …, Dn 1) 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. 5. PULSE-TO-TONE (PÆT) OFF HOOK , D1 , D2 , …, Dn , PÆT , D1’ , D2’ , …, Dn’ 1) If the mode switch is set to pulse mode, then the output signal will be: D1, D2,…, Dn, Pause, D1’, D2’, …, Dn’ (Pulse) (Tone) HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 6 2002.12.03 Silan Semiconductors SC91310 Series 2) If the mode switch is set to tone mode, then the output signal will be: D1, D2,…, Dn, PÆT, D1’, D2’, …, Dn’ (Tone) (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 PÆT function timing diagram is shown in Figure 4. 6. FLASH OFF HOOK , F 1) 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. TIMING WAVEFORMS HKS KEY IN 4 2 2 TKID B M DP TIDP TPDP TIDP TIDP T/P MUTE DTMF OSC. LOW OSCILLATION OSCILLATION NORMAL DIALING Figure 1(a). Pulse Mode Timing Diagram HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 7 2002.12.03 Silan Semiconductors SC91310 Series TIMING WAVEFORMS(continued) HKS R/P KEY IN B M DP TIDP TIDP TIDP TPDP T/P MUTE LOW DTMF OSCILLATION OSC. AUTO DIALING ON HOOK Figure 1(b). Pulse Mode Timing Diagram HKS KEY IN TKID TKRD TKRD TKID DTMF TTD TITP TITP TITP T/P MUTE DP OSC. HIGH OSCILLATION OSCILLATION NORMAL DIALING Figure 2(a). Tone Mode Timing Diagram HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 8 2002.12.03 Silan Semiconductors SC91310 Series TIMING WAVEFORMS(continued) HKS R/P KEY IN TKID DTMF TTD TITP TITP T/P MUTE HIGH DP OSCILLATION OSC. AUTO DIALING Figure 2(b). Tone Mode Auto Dialing Timing Diagram HKS KEY IN 4 2 R/P 2 TKID DP B B M TIDP M B TIDP M TIDP TPDP T/P MUTE TP DTMF LOW OSCILLATION OSC. Figure 3. Pause Function Timing Diagram HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 9 2002.12.03 Silan Semiconductors SC91310 Series TIMING WAVEFORMS(continued) HKS KEY IN 4 2 P-->T 8 TKID DP B M B M TIDP TIDP TPDP T/P MUTE TP DTMF OSCILLATION OSC. Figure 4. Pulse-to-tone Function Timing Diagram HKS KEY IN F 4 TKID DP TFB TFP DTMF TTD TITP T/P MUTE OSCILLATION OSC. Figure 5. Flash Function Timing Diagram HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 10 2002.12.03 Silan Semiconductors SC91310 Series TYPICAL APPLICATION CIRCUIT D1~D4 IN4004 Tip R5 10M VR1 250V R3 33K Ring 1A Bridge R6 3K R4 33K Off Hook On Hook R1 D7 IN4148 Q2 A42 D5 IN4148 μ C1 100 F R9 470K D8 5V1 R7 1M R10 10K Q3 9013 1 4 2 5 3 6 F 15 R1 16 R2 Q4 C1815 C10 0.1 F μ R8 300K μ R11 75K C4 4 F 14 11 10 12 VDD DP HKS DTMF VDD 13 MODE PULSE TONE SC91310 SERIES SPEECH NETWORK 7 8 9 P-->T 17 R3 * 0 # R/P 18 R4 C1 C2 C3 C4 B/M VSS XT XT T/P MUTE 1 2 3 4 5 6 7 8 9 X1 3.58MHz VDD C5 30pF R18 22K VDD Q7 9013 C6 30pF HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 11 2002.12.03 Silan Semiconductors SC91310 Series CHIP TOPOGRAPHY Size: 1.19 x 1.65 mm2 PAD COORDINATES (Unit: µm) No. Symbol X Y No. Symbol X Y 1 P1 -430.1 152.7 10 P10 430.5 101.8 2 P2 -430.9 -334.7 11 P11 430.5 349.8 3 P3 -430.9 -504.7 12 P12 430.5 556.6 4 P4 -382.0 -690.1 13 P13 160.1 655.6 5 P5 -211.4 -688.9 14 P14 -36.8 661.7 6 P6 289.3 -680.1 15 P15 -211.5 611.3 7 P7 430.5 -509.7 16 P16 -430.1 672.7 8 P8 430.5 -238.2 17 P17 -430.1 502.7 9 P9 430.5 -68.2 18 P18 -430.1 327.7 Note: The original point of the coordinate is the die center. HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 12 2002.12.03 Silan Semiconductors SC91310 Series PACKAGE OUTLINE DIP-18-300-2.54 UNIT: mm 0.05 2.54 0.25 0.25 ± 6.40 7.62 ± 1.52 +0.3 -0 ±0.3 15 Degree 4.36MAX 23.12 3.00MIN 0.5MIN ±0.08 0.46 1.27MAX HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 13 2002.12.03 Silan Semiconductors SC91310 Series Attach Revision History Data REV 2001.11.13 2.0 2002.12.03 2.1 Description Page Modify the “TYPICAL APPLICATION CIRCUIT” 11 HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.1 14 2002.12.03