SILAN SC91415BP, SC91415CK, SC91415DK, SC91415AP Datasheet
Silan
Semiconductors
SC91415 SERIES
TONE/PULSE SWITCHABLE DIALER
WITH LCD INTERFACE AND
DUAL-TONE MELODY
DESCRIPTION
The SC91415 is a series of tone/pulse switchable dialers that is
composed of T/P dialer and T/P dialer with 13 set memories. The
SC91415 series provide necessary functions of telephone set for
application in any environment, such as Pulse dialing, Tone (DTMF)
dialing, Handfree dialing, keying tone and lock functions. The lock
function is designed to inhibit toll dialing operation. Beside this,
melody generator, ring detector and SDO (Serial Data Output)
functions are provided in advance version. Melody generator will
output dual-tone music in line hold duration. Ring detector can
prevent illegal dialing from pocket dialer. The SDO is designed to
drive LCD driver and voice synthesizer.
FEATURES
*Tone/Pulse switchable
*Wide operating voltage from 2.0 V to 5.5 V
*Low operating current, 0.15mA (Pulse) and 0.3mA (Tone) typically
*Adding resistor on keyboard scan pin that can select many tele-
phone specifications, such as: Pulse rate, M/B ratio, Flash time,
lock dialing functions.
*Lock function provides conventionality key lock and password lock
operations
*Ring detector is designed to prevent illegal dialing from pocket
dialer
*13 set one touch or (3 set one touch and 10 set two touch)
repertory memory, each one can hold data up to 16 digits
*A 32-digit LNB (last number) redial memory
*Handfree function provides on-hook dialing and speakerphone
application
*Pause and P-T time are fixed to 3.6 seconds
*Tone duration and inter-tone pause time are fixed to 98 ms
*Using 3.579545 MHz crystal or ceramic resonator
DIP-18
DIP-22
*SDO function supports LCD driver and
voice synthesizer to indicate dialing
numbers.
*Line hold function is designed for stopping
conversation temporality
*Melody generator provides music on hold
function
*Keytone function provides rapidly keying
recognition
ORDERING INFORMATION
SC91415AP DIP-18 Package
SC91415BP
SC91415CK
SC91415DK
DIP-20 Package
DIP-22 Package
DIP-24 Package
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
1
Silan
C
Semiconductors
PIN CONFIGURATIONS
SC91415 SERIES
COL5
COL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
V
1
COL5
1
2
3
4
5
6
7
8
9
SS
18
HDO
17
PO
16
ROW4
15
ROW3
ROW2
14
SC91415AP
ROW1
13
12
HKS
11
VDD
10
DTMF
COL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
V
HFI
2
3
4
5
6
7
8
9
SS
20
HDO
19
PO
18
ROW4
17
ROW3
16
ROW2
15
ROW1
SC91415BP
14
HKS
V
13
DD
DTMF
12
1110
HFO
ROW6
COL5
OL4/KT
COL3
COL2
COL1
XIN
XOUT
XMUTE
V
HFI
DRING
1
2
3
4
5
6
7
8
9
SS
10
11
ROW5/
24
SDO
23
HDO
22
PO
21
ROW4
20
ROW3
19
ROW2
18
ROW1
SC91415DK
17
HKS
VDD
16
DTMF
15
HFO
14
1312
RMUTE
COL4/KT
ROW6
COL5
COL3
COL2
COL1
XIN
XOUT
XMUTE
V
HFI
1
2
3
4
5
6
7
8
9
10
SS
ROW5/
22
SDO
21
HDO
20
PO
19
ROW4
18
ROW3
ROW2
17
16
ROW1
SC91415CK
15
HKS
VDD
14
DTMF
13
HFO
1211
VERSIONS LIST AND FUNCTION OUTLINE
Version LNB KT HOLD(music) LOCK HF SDO(LCD) PDP
SC91415A
SC91415B
SC91415C
SC91415D
Note: PDP = Pocket Dialer Prevented
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
2
Silan
Semiconductors
BLOCK DIAGRAM
COL1
COL2
COL3
COL4
/KT
COL5
XIN
XOUT
ROW1
ROW6
Keyboard
interface
(column)
Oscillator
Keyboard
interface
(Row)
SDO HFO HDO
Output circuit
Memory
(Melody)
Timing/Control
circuit
Input circuit
SC91415 SERIES
XMUTERMUTE
Row/Column
programming
counter
latch
&
decoder
Pulse
generator
D/A
converter
DTMF
PO
VDD
HFS
HKS
DRING
VDD
KEYBOARD ASSIGNMENT
COL1 COL2 COL3 COL4/KT COL5
ROW1 1 2 3 HD EM1
ROW2 4 5 6 F EM2
ROW3 7 8 9 A EM3
ROW4 */T 0 # RD/P ST
ROW5/SDO M1 M2 M3 M4 M5
ROW6 M6 M7 M8 M9 M10
Note: ROW5/SDO: Option by COL5, When ROW5 is selected by R option (COL5), there are 13 sets
one touch memory version in SC91415C/D provided.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
3
Silan
Semiconductors
DIALING SIGNAL OPTION
The SC91415 series incorporated a special keyboard scanning function that is connecting a resistor (typically is 560
kΩ) on keyboard scan pin to select many telephone specifications. The specifications are described as following :
a. Mode b. M/B ratio
ROW1 Mode ROW2 MBR (%)
R-VDD 20PPS NR 40:60
NR Tone R-Vss 33:66
R-Vss 10PPS
c. Flash Time d. Lock control method
ROW3 ROW4 Tf (ms) COL1 Control method
NR NR 600 R-VDD Key lock
NR R-Vss 100 NR None lock
R-Vss NR 80 R-Vss Password lock
R-Vss R-Vss 300
e. Lock number f. ROW5/SDO pin functions
COL2 COL3 Lock number COL5 ROW5 or SDO Pin
NR NR None NR SDO
NR R-Vss 0 R-Vss ROW5
R-Vss NR 9
R-Vss R-Vss 0.9
SC91415 SERIES
(Note): If select SDO function, the memory type is
(1T*3+2T*10)
If select ROW function, the memory type is
(1T*3+2T*10) and (1T*13)
ABSOLUTE MAXIMUM RATINGS
(Tamb=25°C, All voltage referenced to VSS, unless otherwise specified)
Characteristic Symbol Value Unit
Power Supply Voltage V
Input Voltage V
PowerDissipation P
Operating Temperature Topr 0~+50 °C
Storage Temperature Tstg -55~+125 °C
DD
IN
D
6.0 V
VSS-0.3~VDD+0.3 V
500 mW
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
4
Silan
Semiconductors
ELECTRICAL CHARACTERISTICS
(Tamb=25°C, VDD=2.5V,fosc=3.579545MHz, All voltage referenced to V
Parameter Symbol Test Conditions Min Typ Max Unit
Operating Voltage V
Operating Current (
Standby Current Istby
Memory Retention Current Imrt ON-HOOKVDD=1.0V -- 0.001 0.1 µA
,
HKS
Input Voltage
HFO & HDO Pins Source Current Ioh Vo=2.0V 0.2 -- -- mA
PO
Pins Leakage Current
PO
SDO Pins Sink Current
DRING
HFI
Output Current(except COL4/KT)
Keyboard debounce time Tdb -- -- 20 -- ms
Key Tone Signal
Pause Time Tp -- -- 3.6 -- Sec.
Pulse to Tone Waiting Time Tpt -- -- 3.6 -- Sec.
Flash Time Tf
& DRING pins:
HFI
,
XMUTE,RMUTE
,HFO,
XMUTE,RMUTE
pin input resistance
Pin Input Resistance Rhfi Vhfi = V
Sink Current
=0) I
HKS
&SDO
&
Frequency fkt -- -- 600 -- Hz
Duration Tkt -- -- 30 -- ms
Tone 2.0 -- 5.5
DD
Pulse
Pulse -- 0.15 0.3
Tone
DD
Pulse -- 0.15 0.3
Tone
ON-HOOK
OFF-HOOK
ON-HOOK
OFF-HOOK
Vil -- V
Vih -- 0.8V
Ioh Vo= V
Iol Vo=0.5V -0.2 -- -- mA
Rdring Vdring = V
Ioh Vksn=V
Iol Vksn=V
Ioh Vo=2.0V 0.2 -- --COL4/KT Source Current
Iol Vo=0.5V 0.2 -- --
DD
SS
SS
SS
DD
Row3B, Row4B=NR,NR -- 600 -Row3B, Row4B=NR,R-Vss 100
Row3B, Row4B=R-Vss,NR 80
Row3B, Row4B=R-Vss,R-Vss -- 300 --
SC91415 SERIES
unless otherwise specified)
SS,
unload
Unload
with pull up/down
resistor *8
Unload
with pull up/down
resistor *8
2.0 -- 5.5
-- 0.3 0.5
-- 0.3 0.5
-- 0.1 1.0 µA
SS
DD
-- -- ±0.001 µA
-- 100 -- kΩ
-- 200 -- kΩ
21050Keyboard Scanning Pins
21050µA
0.2V
V
(to be continued)
DD
DD
V
mA
V
mA
ms
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
5
Silan
Semiconductors
(continued)
Parameter Symbol Test Conditions Min Typ Max Unit
Pulse Rate PSR
Make/Break Ratio MBR
Inter-digit Pause Time Tidp
DTMF pin: Sink Current IoL Vdtmf=0.5V -0.2 -- -- mA
DTMF signal DC level Vdc VDD=2.0V~5.5V 0.5 -- 0.75 V
AC Level Vdtmf Row group 142 160 180 mV
DTMF signal
Minimum tone duration Time Tp -- 96 98 100 ms
Minimum Intertone Pause Time t
Melody
Output
Signal
HD key release hold function
debounce time
SDO every bit time Tbit -- 3.8 3.9 4.1 ms
Off-Hook delay time Tdly -- -- 300 -- ms
Pre-emphase Twist Column – Row 1 2 3 dB
Distortion THD RL=5kΩ -- -30 -23 dB
Load Resistance ZL THD<-23db 5 -- -- kΩ
Main ToneAC Level Vmtac VDD=2.0V~5.5V
Sub-tone Vstac V
Row1=R-V
Row1=R-V
Row2=NR -- 40:60 -Row2=R-V
PSR=10pps -- 800 -PSR=20pps -- 500 --
Memory dialing 96 98 100 ms
ITP
DD
Thdrdb -- -- 280 -- ms
DD
SS
SS
=2.0V~5.5V
SC91415 SERIES
-- 20 --
-- 10 --
-- 33:66 --
-- -23.3 --
48 53 58
-- -25.3 --
37 42 47
pps
%
ms
(dBm)
mV
(dBm)
mV
DTMF FREQUENCY OUTPUT
Keyboard Scanning Pin CCITT Standard(Hz) Actual Output Deviation(%)
ROW1 (f1) 697 699.1 +0.30
ROW2 (f2) 770 766.2 -0.49
ROW3 (f3) 852 847.4 -0.53
ROW4 (f4) 941 947.9 +0.73
COL1 (f5) 1209 1215.8 +0.56
COL2 (f6) 1336 1331.6 -0.32
COL3 (f7) 1477 1471.8 -0.35
(fosc=3.579545MHz)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
6
Silan
Semiconductors
PIN DESCRIPTION
Pin No.
AP BP CK DK
13 15 16 18 ROW1
14 16 17 19 ROW2
15 17 18 20 ROW3
16 18 19 21 ROW4
-- -- 22 24 ROW5
-- -- 1 1 ROW6
5566COL1
4455COL2
3344COL3
1122COL5
2233COL4/KT
6677 XIN
7788XOUT
8899
11 13 14 16 VDD
9 9 10 10 VSS
-- 10 11 11
-- 11 12 14 HFO
10 12 13 15 DTMF
Pin Name Description
XMUTE
HFI
SC91415 SERIES
Keyboard scan pins of row group. In idle state (
HFO is “Low”), these pins stay “High impedance” level to prevent
power consumption. Otherwise, these pins switch to “High” level for
detecting keyboard entry. These pins will output 600Hz signal while
keyboard is scanning.
Keyboard scan pins of column group. In idle state, these pins stay
“High impedance” level. Otherwise these pins switch to “Low” level for
detecting keyboard entry. These pins will output 600Hz signal while
keyboard is scanning.
The fourth column group pin of the keyboard that also provides the
keytone output. Normally, this pin stays “Low” level for detecting
keyboard entry. After a valid keyboard entry, this pin will output keying
confirmation tone that is 600 Hz signal and 30 ms duration. To
prevent signal interference, while DTMF issue, it will disable key tone
output except function key.
Oscillator input and output pins. A 3.579545MHz crystal or ceramic
resonator must be crossed connection to XIN and XOUT pins which
generate system clock.
The Tone/Pulse MUTE signal output pin that is NMOS open-drain
output structure. This pin will switch to “Low” level during Tone/Pulse
dialing and hold function. Otherwise, this pin stays “High impedance”
level.
Positive and negative power supply input pins. Recommended
operating voltage from 2.0Vdc to 5.5Vdc.
Handfree inputs pin which accepts falling edge signal to turn “on” or
turn “off” handfree function. This pin is hysteresis input structure and
built-in pull up resistor (typically 200kΩ).
Handfree outputs pin that is designed to control telephone line for
on-hook dialing or control speakerphone circuit for handfree
conversation. When handfree function is executed, this pin will switch
to“High”. Otherwise, this pin stays “Low” level.
The DTMF (Dual Tone Multi-Frequency) and music signals output pin.
Normally, this pin stays “Low” level. In Tone dialing mode, this pin will
output DTMF signal that is corresponding to keyboard 0 . 9, * and #
keys. Beside this, in the line hold duration, this pin will issue dual-tone
music for telephone line.
is “High” and
HKS
(to be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0 2001-11-13
7
Loading...