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Silan Semiconductors
TONE / PULSE DIALER WITH REDIAL FUNCTION
DESCRIPTION
SC91310 Series
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 (PT) keypad for long distance call operation *Break / Make ratio is selectable by pin option *Uses 4x4 keyboard *Easy operation with redial, flash, pause, and PT keypads *Flash, pause, PT (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
DIP-18
ORDERING INFORMATION (The different dialers in the SC91310 series are shown in the following table)
Type No.
SC91312/A SC91314/A SC91316
Pulse(pps)
10/20 10/20 10/20
Flash(ms)
600/300 73/100 600
Flash pause(ms)
600/300 140/100 600
Pause(s)
2.0 3.6 3.6
PIN CONFIGURATIONS
C1 C2 C3 C4 B/M VSS XT XT T/P MUTE
1 2 3 4 5 6 7 8 9
SC91310
18 R4 17 R3 16 R2 15 R1 14 VDD 13 MODE 12 DTMF 11 DP 10 HKS
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
1
Silan Semiconductors
BLOCK DIAGRAM
XT
SC91310 Series
XT
7
HKS B/M MODE
8
10 5 13 15 16 17 18 1 2 3 4
D/A CONVERTER ROW&COLUMN PROGRAMMABLE COUNTER DATA LATCH& DECODER KEYBOARD INTERFACE READ/WRITE COUNTER CONTROL LOGIC PULSE CONTROL LOGIC SYSTEM CLOCK GENERATION
R1 R2 R3 R4 C1 C2 C3 C4
9 11
T/P MUTE DP
RAM
LOCATION LATCH
DTMF
12
ABSOLUTE MAXIMUM RATINGS
Characteristic
DC Supply Voltage
Symbol
VDD-VSS VIL
Value
-0.3~7.0 VSS-0.3 VDD+0.3 VSS-0.3 VDD+0.3 120 -20~+70 -55~+125
Unit
V V V V V mW C C
Input / Output Voltage
VIH VOL VOH
Power Dissipation Operating Temperature Storage Temperature
PD Topr Tstg
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 2002.12.03
2
Silan Semiconductors
DC ELECTRICAL CHARACTERISTICS
SC91310 Series
Conditions Min
2.0 Tone ---& No key entry
HKS =1, VDD=1.0V
(Tamb=25~70C, VDD~VSS=2.5V, fosc=3.58MHz, all outputs unloaded)
Parameter
Operating Voltage Operating Current
Symbol
VDD IOP Pulse
Typ
-0.3 0.15 --150 2 -30 ----300 -400 --
Max
5.5 0.5 0.3 15 0.2 170 3 -23 3.0 ------5.0
Unit
V mA mA A A mVrms dB dB V mA mA mA k A A k
HKS =0, No load,
Standby Current Memory Retention Current DTMF Output Voltage Pre-emphasis DTMF Distortion DTMF OUTPUT DC Level TMF Output Sink Current
DP Output Sink Current
ISB IMR VTO
-130 1 -1.0 0.2 0.5 0.5 --
Row group, RL=5k Col/Row, VDD=2.0~5.5V
THD VTDC ITL IPL IML RKH IKD IKS
RL=5k, VDD=2.0~5.5V RL=5k, VDD=2.0~5.5V VTO=0.5V VPO=0.5V VMO=0.5V
T/P MUTE Output Sink Current
HKS I/P Pull-high Resistor
Keypad Input Drive Current Keypad Input Sink Current Keypad Resistance
VI=0V VI=2.5V
30 200 --
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
3
Silan Semiconductors
AC ELECTRICAL CHARACTERISTICS
Parameter
Keypad Active in Debounce Key Release Debounce Pre-digit Pause
1
SC91310 Series
Conditions Min
--B/M=1 B/M=0 B/M=1 B/M=0 10pps 20pps ---------------------
Symbol
TKID TKRD TPDP1 10pps
2
Typ
20 20 40 33.3 20 16.7 800 500 40:60 33:67 100 100 73 100 300 600 100 140 300 600 2.0 3.6
Max
-----------------------
Unit
mS mS mS
Pre-digit Pause
TPDP2 20pps TIDP
mS
Interdigit Pause (Auto dialing)
mS
Make / Break Ratio DTMF Output Duration Intertone Pause
M/B TTD TITP
B/M=1 B/M=0 Auto Dialing Auto Dialing SC91314
% mS mS
Flash Break Time
TFB
SC91314A SC91312A SC91312 / SC91316 SC91314A
mS
Flash Pause Time
TFP
SC91314 SC91312A SC91312 / SC91316
mS
Pause Time
TP
SC91312 SC91314A / SC91316
S
Note: 1. Crystal parameters suggested for proper operation are Rs<100, Lm=96mH, Cm=0.02pF, Cn=5pF, Ci=18pF, Fosc.=3.579545MHz0.02%. 2. Crystal oscillator accuracy directly affects these times.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
4
Silan Semiconductors
PIN DESCRIPTION
Pin No.
1~4 & 15~18
SC91310 Series
Description
Pin Name
ColumnRow Inputs
I/O
The keyboard input may be from either the standard 4x4 keyboard or an I inexpensive single contact (form A) keyboard. Electronic input from a C can also be used. A valid key entry is defined as a single row being connected to a single column. XT, XT I,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
7,8
9
T/P MUTE
O
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) Specified R1 697 770 852 941 1209 1336 1477 Actual 699 766 848 948 1216 1332 1472 Error % +0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34
12
DTMF
O
R2 R3 R4 C1 C2 C3
14,6 5
VDD, Vss B/M
I I
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 2002.12.03
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Silan Semiconductors
SC91310 Series
FUNCTION DESCRIPTIONS
1. KEYBOARD OPERATION
C1 1 4 7 *
* F: Flash key * R/P: Redial and pause function key * PT: Pulse mode to tone mode
C2 2 5 8 0
C3 3 6 9 #
C4 R1 F PT R/P R2 R3 R4
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 (P T)
OFF HOOK , D1 , D2 , ..., Dn , P T , 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 2002.12.03
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Silan Semiconductors
SC91310 Series
2) If the mode switch is set to tone mode, then the output signal will be: D1, D2,..., Dn, P T, 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 P T 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 TKID B M
2
2
DP TPDP T/P MUTE DTMF
LOW
TIDP
TIDP
TIDP
OSC.
OSCILLATION
OSCILLATION
NORMAL DIALING
Figure 1(a). Pulse Mode Timing Diagram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
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Silan Semiconductors
SC91310 Series
TIMING WAVEFORMS(continued)
HKS
KEY IN
R/P
B
M TIDP TPDP TIDP TIDP
DP
T/P MUTE
LOW
DTMF
OSC.
ON HOOK
OSCILLATION AUTO DIALING
Figure 1(b). Pulse Mode Timing Diagram
HKS
KEY IN
TKID TKRD TKRD TKID
DTMF
TTD TITP TITP TITP
T/P MUTE DP
HIGH OSCILLATION OSCILLATION
OSC.
NORMAL DIALING
Figure 2(a). Tone Mode Timing Diagram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
8
Silan Semiconductors
SC91310 Series
TIMING WAVEFORMS(continued)
HKS
KEY IN
TKID
R/P
DTMF
TTD TITP TITP
T/P MUTE DP
HIGH
OSC.
OSCILLATION
AUTO DIALING
Figure 2(b). Tone Mode Auto Dialing Timing Diagram
HKS
KEY IN
4 TKID
2
R/P
2
DP
B
M TIDP TPDP
B
M TIDP
B
M TIDP
T/P MUTE
TP
DTMF
LOW OSCILLATION
OSC.
Figure 3. Pause Function Timing Diagram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
9
Silan Semiconductors
SC91310 Series
TIMING WAVEFORMS(continued)
HKS
KEY IN
4 TKID
2
P-->T
8
DP
B
M TIDP TPDP
B
M TIDP
T/P MUTE
TP
DTMF
OSC.
OSCILLATION
Figure 4. Pulse-to-tone Function Timing Diagram
HKS
KEY IN
F TKID
4
DP
TFB TFP
DTMF
TTD TITP
T/P MUTE
OSC.
OSCILLATION
Figure 5. Flash Function Timing Diagram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
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Silan Semiconductors
TYPICAL APPLICATION CIRCUIT
D1~D4 IN4004 VR1 250V Ring 1A Bridge Off Hook On Hook D5 IN4148 R9 470K R7 1M C10 0.1 F Q3 9013 R8 300K R1 R5 10M
SC91310 Series
Tip
R3 33K R4 33K Q2 A42 C1 100F
R6 3K D7 IN4148
D8 5V1
R10 10K Q4 C1815 C4 4F R11 75K
14
1 4 7 * 2 5 8 0 3 6 9 # F P-->T R/P
11
DP
10
HKS
12
DTMF MODE
15 16 17 18
R1 R2
VDD
VDD
13
PULSE TONE
SC91310 SERIES
R3 R4 C1 C2 C3 C4 B/M VSS XT XT T/P MUTE
SPEECH NETWORK
1
2
3
4
5
6
7
8
X1 3.58MHz
9
R18 22K VDD Q7 9013
VDD
C5 30pF
C6 30pF
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
11
Silan Semiconductors
CHIP TOPOGRAPHY
SC91310 Series
Size: 1.19 x 1.65 mm2
PAD COORDINATES (Unit: m)
No. 1 2 3 4 5 6 7 8 9 Symbol P1 P2 P3 P4 P5 P6 P7 P8 P9 X -430.1 -430.9 -430.9 -382.0 -211.4 289.3 430.5 430.5 430.5 Y 152.7 -334.7 -504.7 -690.1 -688.9 -680.1 -509.7 -238.2 -68.2 No. 10 11 12 13 14 15 16 17 18 Symbol P10 P11 P12 P13 P14 P15 P16 P17 P18 X 430.5 430.5 430.5 160.1 -36.8 -211.5 -430.1 -430.1 -430.1 Y 101.8 349.8 556.6 655.6 661.7 611.3 672.7 502.7 327.7
Note: The original point of the coordinate is the die center.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
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Silan Semiconductors
PACKAGE OUTLINE
SC91310 Series
UNIT: mm
2.54
DIP-18-300-2.54
0.25
6.40
1.52 +0.3 -0 23.120.3
7.62
15 Degree
0.5MIN
0.460.08
1.27MAX
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
13
3.00MIN
4.36MAX
0.25
0.05
Silan Semiconductors
Attach Revision History
Data
2001.11.13 2002.12.03
SC91310 Series
REV
2.0 2.1
Description
Modify the "TYPICAL APPLICATION CIRCUIT"
Page
11
HANGZHOU SILAN MICROELECTRONICS CO.,LTD.
Rev: 2.1 2002.12.03
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