Silan
Semiconductors SC91650/1/2 A/B
13 MEMORY TONE / PULSE DIALER
WITH REDIAL SAVE HANDFREE &
HOLD FUNCTION
DESCRIPTION
The SC91650A/B, SC91651A/B, SC91652A/B are 13-memory
DIP-18
Tone/Pulse switchable dialer with Last Number Redial(LNB) and
HOLD function, which are fabricated in COMS technology with wide
operating voltage for both tone and pulse mode, and consumes very
low memory retention current in ON-HOOK state.
FEATURES
*13-memory Tone/Puls e switchable dialer
*Three 16-digit one touch memory and ten 16-digit two touch
DIP-22
memory
One 32-digit last number redial memory
One 32-digit SAVE function for storing phone number in off hook
status
Note: only 15-digit/31-digit for Tone mode, 1-digit use to identify
tone mode
*Power on reset circuit is provided
*Hold function is provided
*Pulse-to-tone (P→T) is provided for PBX operation
* Keytone is provided
*Flash key is available
*Minimum tone duration is 100ms for SC91650, SC91651 or 91ms
*Packaged in 18-DIP or 22-DIP
for SC91652
*Minimum intertone pause is 106ms for SC91650, SC91651 or
91ms for SC91652
*Uses 3.579545MHz crystal or ceramic resonator
ORDERING INFORMATION
*Many options can be selected
Mode (10PPS; 20PPS; Tone)
SC91650A
DIP-18 Package
M/B ratio (40:60;33:66)
SC91650B
DIP-22 Package
SC91651A
DIP-18 Package
SC91651B
DIP-22 Package
(P→T) pause time (3.6s;1.0s)
SC91652A
DIP-18 Package
Flash time (80ms; 93ms; 100ms; 200ms; 300ms; 600ms)
SC91652B
DIP-22 Package
Pause time (3.6s;2.0s)
Pulse number (n;n+1;10-n)
Flash function (RESET;digit)
Flash pause time (200ms; 1000ms)
* Redial pause time (1ms)
* Mixed dialing and cascade dialing is provided
* Handfree function is provided for speaker phone application
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Semiconductors SC91650/1/2 A/B
PIN CONFIGURATIONS
1
2
C3
3
C4
4
C5
5
OSCI
6
OSCO
7
1
22 HDO
18 R4
C1
2
21 R4
17 R3
C2
3
20 R3
16 R2
C3
4
19 R2
15 R1
C4
5
14 MODE
C5
6
13 TONE
OSCI
7
12 PO
SC91650/1B
C2
SC91650/1A
C1
HDI
18 R1
17 MODE
16 TONE
OSCO
8
15 PO
9
14 HKS
XMUTE
8
11 HKS
XMUTE
VSS
9
10 VDD
VSS
10
13 VDD
HFI
11
12 HFO
PMUTE
1
22 KT
21 R4
18 R4
C1
C2
2
17 R3
C2
3
20 R3
16 R2
C3
4
19 R2
15 R1
C4
5
18 R1
14 MODE
C5
6
13 TONE
OSCI
7
C3
3
C4
4
C5
5
OSCI
6
OSCO
7
XMUTE
VSS
9
17 MODE
16 TONE
OSCO
8
15 PO
11 HKS
XMUTE
9
14 HKS
10 VDD
VSS
10
13 VDD
HFI
11
12 HFO
12 PO
8
SC91652B
1
SC91652A
C1
2
SELECTION GUIDE
SC91650A
HDI
HFI
PO
PMUTE
KT
Tone Duration
N
N
Inverter
N
N
100mS
Inverter
N
N
100mS
N
N
Open drain
N
N
100mS
Open drain
N
N
100mS
Open drain
N
N
91mS
Open drain
Y
Y
91mS
SC91650B
SC91651A
SC91651B
SC91652A
N
SC91652B
N
N
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Semiconductors SC91650/1/2 A/B
VDD
HDO
HFO
KT
XMUTE
BLOCK DIAGRAM
VDD
COL2
COL3
COL4
COL5
OSCI
OSC.
DIVIDER
ROW1
ROW2
ROW3
ROW4
ROW
INTERFACE CKT.
OSCO
INPUT INTERFACE CKT.
PULSE
GENERATOR
PO
SAVE MEMORY
KERNEL CONTROL CKT.
COLUMN
INTERFACE CKT.
COL1
DECODER &
DATA LATCH
LNB MEMORY
ROW/COLUMN
PROGRAMMING
COUNTER
MEMORY
D/A CONVERTER
TONE
INPUT INTERFACE CKT.
VSS
HDI
HFI
MODE
HKS
VDD
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Semiconductors SC91650/1/2 A/B
KEYBOARD ASSIGNMENT
C1
C2
C3
C4
C5
R1
1
2
3
SAVE
EM1
R2
4
5
6
F
EM2
R3
7
8
9
A
EM3
R4
*/T
0
#
RD/P
ST
1) */T: In pulse mode, execute P→T function; In TONE mode, execute * key
2) SAVE: SAVE key.
3) F: Flash key
4) RD/P: Redial key/Pause key
5) ST: Store key
6) EMn: One touch memory key
7) A: Auto key for two touch memory
DIALING SIGNAL OPTION
The resistor connection between selected Row (or Column) and Vss may select most country telecom
specifications (refer to Row and Column pin description). Those options include M/B ratio, Flash time, pause time
…… , as follows.
a): Make/Break ratio:
d): Flash time:
Row1
M/B ratio (%)
Row3
Row4
Flash time (ms)
NR
40:60
NR
NR
600
R
33:66
NR
R
R
NR
R
R
b): Pause time & P→T wait time:
Row2
tp(sec)
tpT(sec)
NR
3.6
3.6
R
2.0
1.0
300
93
*100
200
*80
*for SC91652 only
e): Dialing out Pulse number:
c): Flash Key function:
Column3
Column4
Pulse number
NR
NR
n
Column1
Flash key
tFP(sec)
NR
R
n+1
NR
Reset
0.2/0*
R
NR
10-n
R
Digit
1.0
R
R
reserved
* for flash time = 80ms, 200ms only
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Semiconductors SC91650/1/2 A/B
Note: 1). NR = No resistor connection to Vss.
2). R = A resistor connection to Vss (820k typically).
3). N = Pressed digit key.
4). The following list is the corresponding pulse (break) numbers that are sent out by pressed the number
keys.
Digit key
Normal (n)
New Zealand (10-n)
Sweden/Denmark (n+1)
1
1
9
2
2
2
8
3
3
3
7
4
4
4
6
5
5
5
5
6
6
6
4
7
7
7
3
8
8
8
2
9
9
9
1
10
0
10
10
1
*
P→T KEY
P→T KEY
P→T KEY
#
ignored
ignored
ignored
Dialing signal option
ABSOLUTE MAXIMUM RATINGS
(Tamb=25°C, All voltage referenced to VSS, unless otherwise specified)
Symbol
Value
Unit
Power Supply Voltage
Characteristic
VDD
6.0
V
Input Voltage
VIN
-0.3~VDD+0.3
V
Power Dissipation
PD
500
mW
Operating Temperature
Topr
-25~+70
°C
Storage Temperature
Tstg
-55~+150
°C
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Semiconductors SC91650/1/2 A/B
ELECTRICAL CHARACTERISTICS
(Tamb=25°C, VDD=2.5V, fosc=3.579545MHz, All voltage referenced to VSS, unless otherwise specified)
Parameter
Symbol
Conditions
Min
Typ
Max
Tone
2.0
--
5.5
Pulse
2.0
--
5.5
Memory retention
1.0
Unit
DC Characteristics
Operating Voltage
VDD
Tone
V
5.5
--
0.4
1
--
0.2
0.5
20
80
µA
OFF-HOOK, Keypad
Operating Current
IOP
entry with pull down
Pulse
resistance
OFF-HOOK,
No
Keypad entry
Standby Current
IS
Memory Retention Current
Imr
mA
ON-HOO KNo keypad entry
--
0.1
1.0
µA
ON-HOO KVDD=1.0V
--
0.1
1.0
µA
Control Pin Input Low Voltage
Vil
--
VSS
0.3VDD
Control Pin Input High Voltage
Vih
--
0.7VDD
VDD
XMUTE Pin Leakage Current
Imth
V XMUTE =6.0V
--
--
1
µA
XMUTE Pin Sink Current
Imtl
V XMUTE =0.5V
0.2
--
--
mA
HKS Pin Input Current
Ihks
Vhks=2.5V
--
--
0.1
µA
2
10
50
200
400
800
Keyboard
Scanning Pin
Drive Current
Ikbd
Sink Current
Ikbs
Vn=0Vnote1,
No resistors connected t o VSS
Vn=2.5note1
No resistors connected t o VSS
V
µA
Key-in Debounce Time
tDB
--
--
20
--
HFI pin input resistor
Rhfi
VDD=2.5V
--
200
--
ms
kΩ
HFO pin drive current
Ihdoh
Vhfo=2.0V
0.2
--
--
mA
HFO pin sink current
Ihdol
Vhfo=0.5V
0.2
--
--
mA
HDI pin pull high resistor
Rhdi
VDD=2.5V
--
200
--
kΩ
HDO pin drive current
Ihdoh
Vhdo=2.0V
0.2
--
--
mA
HDO pin sink current
Ihdol
Vhdo=0.5V
0.2
--
--
mA
Pulse Output Pin Leakage Current
Ipoh
Vpo=2.0V(SC91650 only)
0.2
--
--
mA
Pulse Output Pin Sink Current
Ipol
Vpo=0.5V
0.2
--
--
mA
--
10
--
--
20
--
--
40:60
--
--
33:66
--
Pulse Mode
Pulse Rate
Make/Break Ratio
fpr
tMtB
pps
%
(to be continued)
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Semiconductors SC91650/1/2 A/B
(continued)
Parameter
Symbol
Pre-digit Pause
tPDP
Inter-digit Pause
tIDP
Min
Typ
Max
M/B ratio=40:60
Conditions
--
40
--
M/B ratio=33:66
--
33
--
Pulse rate=10pps
--
800
--
Pulse rate=20pps
--
500
--
Unit
ms
ms
Tone Mode
DC Level
Tone
Vdc
Sink Current
Output Pin
Itl
AC level
Vdtmf
Load Resistor
DTMF Signal
RI
Pre-emphasis
twist
Distortion
Dist.
Minimum tone duration Time
(note 3)
Minimum Intertone Pause Time
(note 3)
tTD
tITP
0.5VDD
--
0.7VDD
V
Vdtmf=0.5V
VDD=2.0V~5.5V
0.2
--
--
mA
Row groupRL=5KΩ
130
155
180
mVrms
5
--
--
KΩ
1
2
3
dB
--
-30
-23
dB
--
100
--
ms
--
91
--
ms
--
106
--
ms
--
91
--
ms
Dist.≤ -23dB
VDD=2.0~5.5 V,
Column-Row group
RL=5KΩ
Auto redial
Auto redial
Note: 1. Vn: Input voltage of any keyboard scanning pin (Row group, Column group)
2Distortion (dB) = 20log{[V12+V22+V32+…Vn2)1/2]/[(VL2+VH2)1/2]}
VL,VH: Row group and Column group signal , V1V2…Vn: Harmonic signal (BW = 300Hz ~ 3500Hz
ACTUAL FREQUENCY OUTPUT (fosc=3.579545MHz)
Keyboard Scanning Pin
Standard(Hz)
Output
Deviation(%)
R1
f1
697
699
+0.28
R2
f2
770
766
-0.52
R3
f3
852
848
-0.47
R4
f4
941
948
+0.74
C1
f5
1209
1216
+0.57
C2
f6
1336
1332
-0.30
C3
f7
1477
1472
-0.34
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Semiconductors SC91650/1/2 A/B
PIN DESCRIPTION
Pin No.
650A/B 651A/B 652A/B
Pin Name
Description
*Provides keyboard scanning.
1
2
1
2
1
2
C1
a. Dialling option:
*The resistor connection between selected Row (or Column) and Vss
may select most countries telecom specification.
2
3
2
3
2
3
R1
C2
R2
R3
R4
3
4
3
4
3
4
C4 C3 C2 C1
C3
R=820k
4
5
4
5
4
5
b. Keyboard scanning:
C4
*While HKS pin is HIGH, Both column pin and row pin are in floating
state. While HKS pin is LOW, the column group stays in “HIGH”
state and row group stays in “LOW” state.
5
6
5
6
5
6
C5
*The keypad is compatible with the standard dual contact matrix
keyboard (as figure1b), the inexpensive single contact keyboard (as
figure 1a), and electronic input (as figur e 1c).
15
18
15
18
15
18
R1
*When HKS is “LOW”, a valid key entry is defined by related Row &
Column connection or by electronic input (as shown in figur e 1c).
*Activation of two or more keys will result in no response, except for
16
19
16
19
16
19
R2
single key.
*To avoid keyboard-bouncing error, this chip provides built-in
debounce circuit. (Th e debounce time = 20ms)
17
20
17
20
17
20
R3
Row
Column
Row
Column
Figure1a: Single contact form
keyboard configuration
Row
18
21
18
21
18
21
Figure1b: Dual contact form
keyboard configuration
VDD
VSS
R4
Column
VDD
VSS
Figure1c: Electronic signal input keyboard configuration
(to be continued)
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Semiconductors SC91650/1/2 A/B
(continued)
Pin No.
650A/B 651A/B 652A/B
Pin Name
Description
*Oscillator input & output pins.
6
7
6
7
6
7
OSCI
*The 3.579545MHz oscillator is formed by a built-in inverter inside of
this chip and by connecting a 3.579545MHz crystal or a ceramic
resonator across the OSCI and OSCO pins. (built-in feedback resistor
and capacitor)
7
8
7
8
7
8
OSCO
*When HKS is “LOW”, a valid key-in may turn on this oscillator and
generates a 3.579545 MHz clock.
*Mute output pins.
*NMOS open drain output structure.
8
9
8
9
8
9
XMUTE
*The output is in “LOW” state during dialing sequence (both Pulse
and Tone mode) and in Hold status otherwise this pin is
“high-impedance”.
*Long (continue) Mute.
9
10
9
10
9
10
VSS
*Negative power supply pin.
10
13
10
13
10
13
VDD
*Positive power supply pin.
*Hook switch input pin.
*When the handset is in ON-HOOK state, this pin must be pulled
11
14
11
14
11
14
HKS
“high” in order to disable the dialing operation and decrease the
power consumption.
*When in OFF-HOOK state, th e HKS pin must be pulled “low” state
for all function operation.
*Pulse output signal pin.
*Inverter output structure (SC91650).
12
15
12
15
12
15
PO
*The output is “LOW” during pulse dialing and Flash operation,
otherwise this output is “high”.
*NMOS open drain output structure.
*Dual Tone Multi-frequency output pin.
*In TONE mode, when an entry of digit key (include *, # key), this pin
will send out a corresponding DTMF signal.
13
16
13
16
13
16
TONE
*The TONE pin provides minimum tone duration (tTD) and minimum
intertone pause time to support rapid key-in. If key-in time is less than
tTD (100ms), DTMF signal will last for tTD (100ms); otherwise the tone
duration will last as long as the key is pressed.
*Mode select pin.
14
17
14
17
14
17
MODE
*Tri-state input structure.
*This pin can select following three modes.
(to be continued)
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Semiconductors SC91650/1/2 A/B
(continued)
Pin No.
650A/B 651A/B 652A/B
Pin Name
Description
*Handfree input control pin. (SC91650, SC91651)
*Toggle input structure, rising edge trigger.
11
11
HFI
*It is used to enable and disable Handfree funtion.
*With waveshaped by a built-in Schmit trigger, the bounce of input
can be eliminated by external R•C debounce circuit.
* A built-in pull down resistor is 200kΩ typical.
11
HFI
* Toggle input structure with pull up resistance 200kΩ, falling edge
trigger. (SC91652)
* Handfree output pin.
* Inverter output structure (normally ‘low’, active ‘high’).
* When a HFI pin is active, Handfree function will be enabled
12
12
12
HFO
(HFO=1) or disable (HFO=0).
* When the Handfree function is enable (HFO=1), after OFF-HOOK
action, it can reset Handfree function and HFO pin return to ‘low’
state.
*Hold line input control pin.
*Toggle input structure, falling edge trigger.
1
1
HDI
*It is used to enable and disable Hold line function.
*With waveshaped by a built-in Schmit trigger, the bounce of input
can be eliminated by extenal R.C debounce circuit.
*A built-in pull up resistor is 200kΩ typically.
*Hold line output pin.
*Inverter output structure, falling edge trigger.
*When a falling edge signal triggered HDI pin, Hold line function will
22
22
HDO
be enable (HDO=1) or disabled(HDO=0).
*When the Hold line function is enable (HDO=1), after OFF-HOOK
action or HFO pin is from “low” to “high”, it can reset Hold line
function and HDO pin return to “low” state.
*Keytone output pin for ralid key pad input and memory stored
(SC91652 only).
22
KT
*CMOS invertor output structure.
*It will issue a 1.2kHz, duty cycle 50% signal with duration 30ms.
*To prevent signal interference, while DTMF issue, it will disable
Keytone output except function key.
*Pulse mode mute.
1
PMUTE
*CMOS inverter output structure.
*The output is high state during dialing sequence (pulse mode only),
otherwise this pin is low.
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Semiconductors SC91650/1/2 A/B
KEYBOARD OPERATION
Symbol definitions:
a)
↑
:
OFF-HOOK or enable Hand Free function.
b)
↓
:
ON-HOOK or disable Hand Free function.
c)
:
Input level from low to high.
d)
:
Input level from high to low.
e)
D1~Dn
:
Digit key1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, (C1~Cn is same as D1~Dn).
f)
Dp1~Dpn
:
Pulse digit1, 2, 3, 4, 5, 6, 7, 8, 9, 0, (Cp1~Cpn is same as Dp1~Dpn).
g)
Dt1~Dtn
:
Tone digit1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, (Ct1~Ctn is same as Dt1~Dtn).
h)
tF
:
Flash time.
i)
tP
:
Pause time.
j)
tPT
:
Pulse to Tone wait time.
k)
tFP
:
Pause time for flash.
l)
tRP
:
Pause time for redial.
m)
LNB
:
Last number redial buffer.
n)
M1 … Mm
:
Memory location; 1, 2, 3, 4, 5, 6, 7, 8, 9, 0.
ANormal Dialing
1. Digit Dialing
Procedure
↑
Dial out
Dt1,
Dt2…,
Dial out
Dp1,
Dp2,…, Dpn (in Pulse mode)
LNB
D1,
D2…,
D1,
D2…, Dn↓
Dtn (in Tone mode)
Dn
2. Dialing with flash key
Procedure
↑
Dial out
t F,
tFP,
Dt1,
Dt2…,
Dial out
t F,
tFP,
Dp1,
Dp2,
LNB
D1,
LNB
:
Un change (Digit Function only)
F, D1, D2…, Dn
D2…,
↓
Dtn (in Tone mode)
…,
Dpn (in Pulse mode)
Dn (reset function only)
3. Dialing with P→T key
Procedure
↑
Dial out
Dp1,
LNB
D1,
D1,
D2
…,
Dp2, …,
D2 …,
P→T , …,
Dn
↓
tPT, …, Dpn (in Pulse mode)
P→T , …,
Dn
Note: If key in digit over maximum digit stored in LNB, then RD is inhibit even after on/off hook.
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Semiconductors SC91650/1/2 A/B
BMixed dialing
Procedure
↑D1,
D2…,
MODE=
↑D1,
D2…,
P→T , D9, D10 …,
Dp2, …,
Dial out
Dp1,
LNB
D1,
LNB
D1,
Procedure
↑
Dial out
tRP,
Dt1,
Dt2…,
Dial out
tRP,
Dp1,
Dp2,…,
tPT,
D2…, P→T ,
, D9, D10 …,
Dt9,
Dn↓; or
Dn↓
Dt10…,
Dtn
D9,
D10 …,
Dn
Dtn
(In Tone mode)
CRedial
D2…,
Dn
↓
RD
Dpn
(in Pulse mode)
Note: If key in digit over maximum digit stored in LNB, then RD is inhibit.
DPause Function
Procedure
↑
Dial out
Dt1,
Dt2 ,…,
Dial out
Dp1,
Dp2, … Dpn , tP, Cp1 …,
LNB
D1, D2…, Dn, P , C1, C2 …, Cn
D1,
D2…,
Dn, P, C1 …,
Dtn, tP, Ct1,
↓
Cn
Ctn
(in Tone mode)
Cpn
(in Pulse mode)
EFlash Function
1. Reset
Procedure
↑
Dial out
Dt1,
Dial out
Dp1,
LNB
C1,
D1,
D2…,
Dn,
F,
Dt2,…, Dtn , t F,
Dp2,…, Dpn ,
C2 …,
C1 …, Cn
tFP,
↓
Ct1 …, Ctn
(in Tone mode)
t F,
tFP, Cp1 …, Cpn
F,
C1 …, Cn
(in Pulse mode)
Cn
2 Digit
Procedure
↑
Dial out
Dt1,
Dial out
Dp1,
LNB
D1,
D1,
D2…,
Dn,
Dt2,…, Dtn , t F,
Dp2,…, Dpn ,
D2 …,
tFP,
t F,
↓
Ct1 …, Ctn
(in Tone mode)
tFP, Cp1 …, Cpn
(in Pulse mode)
Dn
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Semiconductors SC91650/1/2 A/B
FOne Touch Memory Function
1. Store Memory
Procedure
↑
Dial out
Nothing
EMn
=
D1,
ST,
↑
Dial out
Nothing
=
D1,
ST,
Procedure
↑
Nothing
=
D1,
Procedure
Dial out
EMn
=
D1,
ST,
EMn
D1,
D2……,F, …… Dn,
ST,
EMn
↓
D2……,P, …… Dn,
ST,
EMn
↓
D2,……,F, ……Dn
Dial out
EMn
D2…,
D2,…… Dn
Procedure
EMn
Dn,
↓
D1,
ST,
D1,
D2,……,P, ……Dn
↑
Nothing
ST,
D1,
D2……,P→T, …… Dn,
ST,
EMn
↓
D2,……, P→T, ……Dn
2 Quickly Store
Procedure
↑
Dial out
Nothing
EM1
=
D1, D2;
LNB
EM2
ST,
=
D1,
D1,
D2, ST, EM1, ST, D3, D4, D5, St, EM2, ST, EMn ↓
D3, D4, D5,
D2 …,
EMn
=
D3, D4, D5
Dn
3 Redial
EMn
=
D1 , D2, ……Dn
Procedure
↑
Dial out
Dt1,
Dial out
Dp1,
LNB
D1,
↓
EMn
Dt2, …… Dtn (in tone mode)
Dp2, …… Dpn (in pulse mode)
D2,……Dn
GTwo Touch Memory Function
1. Store Memory
Procedure
↑
Dial out
Nothing
EMn
=
D1,
ST,
↑
Dial out
Nothing
=
D1,
ST,
Procedure
↑
Nothing
=
D1,
ST,
EMn
D1,
D2……,F, …… Dn,
ST,
EMn
↓
D2……,P, …… Dn,
ST,
EMn
↓
D2,……,F, ……Dn
Dial out
EMn
D2…,
D2,…… Dn
Procedure
EMn
Dn,
↓
D1,
ST,
D1,
D2,……,P, ……Dn
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Silan
Semiconductors SC91650/1/2 A/B
Procedure
↑
Dial out
Nothing
EMn
=
D1,
ST,
D1,
D2……,P→T, …… Dn,
ST,
EMn
↓
D2,……, P→T, ……Dn
2 Quickly Store
Procedure
↑
Dial out
Nothing
EM1
=
D1, D2;
LNB
EM2
ST,
=
D1,
D1,
D2, ST, EM1, ST, D3, D4, D5, St, EM2, ST, EMn ↓
D3, D4, D5,
D2 …,
EMn
=
D3, D4, D5
Dn
3 Redial
EMn
=
D1 , D2, ……Dn
Procedure
↑
Dial out
Dt1,
Dial out
Dp1,
LNB
D1,
EMn
↓
Dt2, …… Dtn (in tone mode )
Dp2, …… Dpn (in pulse mode)
D2,……Dn
HSave Function
1. The Second Redial Memory
Procedure
↑ D1,
Dial out
Dt1,
Dial out
:
Dp1,
LNB
D1,
D2 , …… Dn,
dialing end,
SAVE
↓
Dt2 , …… Dtn (in tone mode)
Dp2,
D2,
…… Dpn (in pulse mode)
…… Dn
2 Store Phone Number In Conversation
Procedure
↑ ST, D1, D2, …… Dn, conversation, ST, C1, C2, ……
Dial out
Dt1,
Dt2 , …… Dtn (in tone mode)
Dial out
:
Dp1,
Dp2,
Cn, ST, SAVE ↓
…… Dpn (in pulse mode)
SAVE
:
C1,
C2,
…… Cn
LNB
:
C1,
C2,
…… Cn
Note: If key in digit over maximum digit stored in SAVE, then SAVE is ignore.
The data in SAVE is no change, and can dial out after on/off hook.
3 Redial
SAVE
:
D1,
Procedure
↑
D2,
Dial out
Dt1,
Dial out
Dp1,
LNB
D1,
LNB
:
Un change (SC91650, SC91651)
SAVE
…… Dn
↓
Dt2, …… Dtn (in tone mode )
Dp2, …… Dpn (in pulse mode)
D2,……Dn(SC91652 only)
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Semiconductors SC91650/1/2 A/B
ICascade Dialing
1. Normal Dialing and Memory
Procedure
↑ D1, D2, …… Dn, EM1, EMm … EMn, A, Mn ↓
2. One Touch Memory and Memory
Procedure
↑
EMm
↑
RD,
……
Emn,
A,
EM1,
EMm
……
Mn ↓
3. LNB and Memory
Procedure
EMn,
A,
Mn ↓
4. SAVE and Memory for SC91652 only
Procedure
↑
SAVE,
EM1,
EMm
……
EMn,
A,
Mn ↓
Handfree Function operation:
A) To execute Handfree function: When HFO = ’low’, HFI pin is active, the Handfree function will be enabled (HFO
= ’high’)
B) Reset Handfree function:
a. OFF-HOOK action.
b. When HFO = ’high’, a HFI pin is active again, the Handfree function will be reset (HFO=’low’).
c. When HDO pin is from “low” to “high”, the Handfree function will be reset (HFO=”low”).
Hold Line Function Operation:
A) To execute Hold Line function: When HFO = ’high’ state or HKS is low, HDI pin is active, the Hold line function
will be enable ( HDO = ”high” ). The XMUTE pin keep to “low”, when HDO stays in “high” state.
B) Reset Hold Line function:
a. OFF-HOOK action.
b. HFO pin from “low” to: “HIGH level.
c. When HDO = ”high”, HDI pin is active, the Hold line function will be disabled (HDO=”low”).
Operating flow
chart of Handfree
HD
ON HKS
(0)
INITIAL
HF
HF
ON HKS
(1)
HF LINE
HF
ON
OFF HKS
(2)
LINE
OFF
HD
HF
HD
OFF
HD
OFF
ON HKS
(5)
HF LINE
ON
HF
OFF HKS
(3)
HF LINE
HD
HD
HF
OFF HKS
(4)
LINE
ON
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Semiconductors SC91650/1/2 A/B
PO
XMUTE
HFO
HDO
(0) INITIAL STATE
0/F
F
0
0
HF: Depress HF key
(1) ON HKS HF LINE
1/F
F
1
0
HD: Depress HF key
(2) OFF HKS LINE
1/F
F
0
0
F: Floating (Hi-impedance)
(3) OFF HKS HF LINE
1/F
F
1
0
PO is floating for SC91651/
(3) OFF HKS HD LINE
1/F
0
0
1
SC91652
(3) ON HKS HD LINE
1/F
0
0
1
struc-ture.
STATE NO.
ON/OFF: ON/OFF HKS
open
drain
TEST CIRCUIT
1
Operation
current
V+
Standby
current
2
A
VDD
keyboard
DP
DP
DT
MODE
HKS
VSS
V+
A
VDD
3 Tone output voltage
4
Tone distortion
V+
V+
counter
and
AC meter
VDD
keyboard
keyboard
HKS
TONE
VSS
10KΩ
6
Pulse output sink current
(open drain structure)
HKS
V
10KΩ
Pulse output sink current
(inverter structure)
V+
V+
VDD
Flash
key
Spectrum
analyzer
VDD
TONE
VSS
5
HKS
VSS
VSS
HKS
VDD
A
PO
V
VEXT
HKS
PO
VSS
7 Keypad input current (row group)
VDD
VEXT
8 keypad input current (column group)
V+
A
A
V
V+
VDD
R*
R*
COLUMN
ROW
C*
A
HKS VSS MODE
C*
HKS VSS MODE
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Semiconductors SC91650/1/2 A/B
Note: 1. Dist. (dB)=20log{[V12+V22+V32+…Vn2)1/2]/[(VL2+VH2)1/2]}
a. V1…Vn are extraneous frequencies (ie, inter modulation and harmonic), components in the 500Hz
to 3400Hz band.
b. VL,VH
are the individual frequency components of DTMF signal.
c. Whether keyboard is pushed refer to the TONE mode time diagram.
2. Sink current Isink=I/(1-Duty Cycle), I is the net DC current measured from ampere meter.
3. R*, C* mean other column and row.
TIMING DIAGRAMS
HKS
3
2
3
KEY IN
tDB
XMUTE
**PO
TONE
tTD
tITP
tITP
tITP
OSCO
......High impedance
Normal dialing
Tone Mode Timming Diagram
HKS
3
2
3
KEY IN
PMUTE
tDB
XMUTE
tPDP
**PO
TONE
tM
tB
tTD
tIDP
tIDP
tIDP
OSCO
Normal dialing
......High impedance
Pusle Mode Timming Diagram
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Semiconductors SC91650/1/2 A/B
TIMING DIAGRAMS (continued)
HKS
3
2
3
P→T
KEY IN
tDB
XMUTE
tPDP
**PO
TONE
tIDP
tPT
tIDP
tITP
OSCO
......High impedance
Timming Waveform for mixed dialing Operation (by */T key entry)
for SC91650, SC91651
HKS
3
2
3
KEY IN
tDB
MODE
XMUTE
tPDP
**PO
TONE
tIDP
tPT
tIDP
tITP
OSCO
......High impedance
Timming Waveform for mixed dialing Operation (by mode selection pin switches)
for SC91650, SC91651
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Semiconductors SC91650/1/2 A/B
TIMING DIAGRAMS (continued)
HKS
3
2
3
*/T
KEY IN
tDB
XMUTE
tPDP
PO
DTMF
tIDP
tPT
tIDP
tITP
OSCO
......High impedance
Timming Waveform for mixed dialing Operation (by */T key entry)
for SC91652 only
HKS
KEY IN
F
tDB
XMUTE
PO
TONE
tF
OSCO
......High impedance
Flash key operating timming
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Semiconductors SC91650/1/2 A/B
TIMING DIAGRAMS (continued)
HKS
3
2
3
KEY IN
tDB
MODE
XMUTE
tPDP
PO
DTMF
tIDP
tPT
tIDP
tITP
OSCO
......High impedance
Timming Waveform for mixed dialing Operation (by mode selection pin switches)
for SC91652 only
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Semiconductors SC91650/1/2 A/B
TIMING DIAGRAMS (continued)
HKS
1
2
RD
KEY IN
tDB
XMUTE
tRP
**PO
tITP
tITP
tITP
tITP
TONE
tD
OSCO
......High impedance
AUTO DIALING
Tone Mode Redial Timming Diagram
HKS
3
2
RD
KEY IN
tDB
XMUTE
tRP
tIDP
tIDP
**PO
tIDP
tIDP
TONE
OSCO
......High impedance
Pulse Mode Redial Timming Diagram
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Semiconductors SC91650/1/2 A/B
TIMING DIAGRAMS (continued)
HKS
3
KEY IN
*PULSE MODE
XMUTE
2
P
3
tDB
tPDP
tIDP
tIDP
tP
tIDP
**PO
TONE
OSCO
*TONE MODE
tDB
XMUTE
**PO
tITP
tITP
tP
tITP
TONE
OSCO
......High impendance
Pause key operating timming (for SC91650, SC91651)
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Semiconductors SC91650/1/2 A/B
TIMING DIAGRAMS (continued)
HKS
3
KEY IN
*PULSE MODE
2
P
3
tDB
XMUTE
tPDP
tIDP
tIDP
tP
tIDP
PO
DTMF
OSCO
*TONE MODE
tDB
XMUTE
PO
tITP
tITP
tP
tITP
DTMF OUT
OSCO
......High impendance
Pause key operating timming(for SC91652 only)
HKS
F
KEY IN
tDB
XMUTE
**PO
TFP
TF
TONE
OSCO
......High impedance
Flash key operation timing
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SC91650/1/2 A/B
TYPACAL APPLICATION CIRCUIT(for SC91650A)
Silan
Semiconductors Tip
A92
EM2
SA EM1
17 R3
16 R2
15 R1
2.2kΩ
VDD
10
IN4148
12
47kΩ
PO
ZD 5.1V
SC91650A
IN4148
470kΩ
100µF
16V
11
HKS
2SC945
1µF
16V
TONE 13
XMUTE 8
220kΩ
200Ω
MODE
SW
SPEECH
NETWORK
2SC945
100kΩ
0.2µF
1.5kΩ
VDD
10pps
TONE
20pps
2001.01.15
REV: 1.0
22MΩ 100kΩ
240kΩ
3
F
EM3
1N4004x4
ON HOOK
OFF
HOOK
2
6
A
Ring
1
5
9
A42
3.3kΩ
4
8
ZNR
120V
7
3.579545MHz
0.01µF
C5 C4 C3 C2 C1 OSCI OSCO VSS MODE
5
4
3
2
1
6
7
9
14
18 R4
#
RD/P ST
0
R
*/T
820kΩx7
24
0.1µF
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
SC91650/1/2 A/B
TYPACAL APPLICATION CIRCUIT (for SC91650B)
Tip
Ring
1N4004x4
MPSA92
100kΩ
22MΩ
200kΩ
C945
C945
1µF
470kΩ
100µF
16V
1µF
2.2kΩ
IN4148
C945
200Ω
1
5
2
9
6
3
A
F
EM3
EM2
SA EM1
0.2µF
3.579545MHz
2 to 4 wire
speech network &
audio amplifier
4
8
#
TO HANDSET
R1 18
7
0
HFO 12
XMUTE 9
OSCO 8
13
16
VDD TONE
OSCI 7
5.1V
SC91650B
R2 19
*/T
4.7kΩ
RD/P ST
R3 20
820kΩx7
R4 21
C1 2
MODE
VSS C5 C4 C3 C2
10 6
5
4
3
17
1 HDI
22 HDO
11 HFI
15 PO
14 HKS
IN4148
HD
KEY
VDD
VDD
1µF
HF
KEY
47kΩ
1µF
1µF
C945
470kΩ
1.2kΩ
2
1
H66T
4.7kΩ
0.1µF
3
47µF
2.7V
10µF
50V
22kΩ
10pps
20pps
TONE
2001.01.15
REV: 1.0
ON HOOK
ZNR
120V
3.3kΩ
C945
220kΩ
100kΩ
MODE
SW
0.01µF
25
100kΩ
240kΩ
Silan
Semiconductors HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
SC91650/1/2 A/B
TYPACAL APPLICATION CIRCUIT (for SC91651A)
Tip
1N4004x4
HOOK SW
ON
OFF
MPSA92
IN4148x2
10
2.7kΩ
100kΩ
3
2
1
6
7
9
2SC945
14
220kΩ
100kΩ
10pps
20pps
TONE
MODE
SW
2 wire to 4 wire
speech netwok
VDD
1µF
16V
XMUTE 8
TONE 13
HKS
11
100µF 16V
470kΩ
ZD 5.1V
SC91651A
VDD
100µF 16V
PO
12
330kΩ 0.1µF
15 R1
4
3.579545MHz
0.01µF
2001.01.15
REV: 1.0
22MΩ 100kΩ
40kΩ
2.2kΩ
SA EM1
Ring
3
MPSA42
2
ZNR
120V
1
17 R3
16 R2
EM3
EM2
A
18 R4
F
9
ST
6
8
R/P
5
7
#
5
C5 C4 C3 C2 C1 OSCI OSCO VSS MODE
0
4
R
*/T
820kΩx7
26
IN4148
Silan
Semiconductors HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
SC91650/1/2 A/B
TYPACAL APPLICATION CIRCUIT (for SC91651B)
Tip
Ring
1N4004x4
MPSA92
100kΩ
22MΩ
200kΩ
C945
100kΩ
C945
1µF
4.7kΩ
HD
KEY
470kΩ
100µF
16V
1µF
2.2kΩ
IN4148
C945
200Ω
4
1
8
5
2
#
9
6
3
A
F
EM3
EM2
SA EM1
0.2µF
3.579545MHz
2 to 4 wire
speech network &
audio amplifier
R1 18
7
0
TO HANDSET
R2 19
*/T
HFO 12
XMUTE 9
OSCO 8
13
16
VDD TONE
OSCI 7
5.1V
SC91651B
R3 20
RD/P ST
R4 21
C1 2
MODE
VSS C5 C4 C3 C2
10 6
5
4
3
17
1 HDI
22 HDO
11 HFI
15 PO
14 HKS
IN4148
VDD
1µF
HF
KEY
47kΩ
1µF
47kΩ
1µF
C945
470kΩ
1.2kΩ
2
1
H66T
4.7kΩ
0.1µF
3
47µF
2.7V
HFO
10µF
50V
22kΩ
VDD
10pps
20pps
820kΩx7
2001.01.15
REV: 1.0
ON HOOK
ZNR
120V
3.3kΩ
C945
220kΩ
100kΩ
MODE
SW
TONE
0.01µF
27
330kΩ
240kΩ
Silan
Semiconductors HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
100kΩ
SC91650/1/2 A/B
TYPACAL APPLICATION CIRCUIT (for SC91652A)
Tip
1N4004x4
HOOK SW
ON
OFF
MPSA92
IN4148x2
10
2.7kΩ
100kΩ
3
2
1
6
7
9
2SC945
14
220kΩ
100kΩ
2 wire to 4 wire
speech netwok
10pps
MODE
20pps SW
TONE
VDD
1µF
16V
XMUTE 8
TONE 13
HKS
11
100µF 16V
470kΩ
ZD 5.1V
SC91652A
VDD
100µF 16V
PO
12
330kΩ 0.1µF
15 R1
4
3.579545MHz
0.01µF
2001.01.15
REV: 1.0
22MΩ 100kΩ
240kΩ
2.2kΩ
SA EM1
Ring
3
MPSA42
2
ZNR
120V
1
17 R3
16 R2
EM3
EM2
A
18 R4
F
9
ST
6
8
R/P
5
7
#
5
C5 C4 C3 C2 C1 OSCI OSCO VSS MODE
0
4
R
*/T
820kΩx7
28
IN4148
Silan
Semiconductors HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Silan
Semiconductors SC91650/1/2 A/B
TYPACAL APPLICATION CIRCUIT (for SC91652B)
1N4004x4
ON HOOK
IN4148
MPSA92
330kΩ
ZNR
120V
240kΩ
Ring
22MΩ
100kΩ
Tip
2.2kΩ
200kΩ
C945
IN4148
470kΩ
C945
1µF
100kΩ
100µF
16V
0.2µF
1µF 5.1V
3.3kΩ
14 HKS
47kΩ
15 PO
C945
PMUTE 1
47kΩ
100kΩ
KT 22
11 HFI
HFO
XMUTE 9
1µF
HF
KEY
200Ω
13
16
VDD TONE
2 to 4 wire
speech network & audio
amplifier
HFO 12
TO HANDSET
SC91652B
7
OSCI
3.579545MHz
R1 18
1
2
3
R2 19
4
5
6
F
EM2
R3 20
7
8
9
A
EM3
R4 21
*/T
0
#
SA EM1
8 OSCO
17 MODE
VDD
MODE
SW
VSS C5 C4 C3
10 6
5
4
10pps
RD/P ST
C1 2
C2
3
20pps
TONE
0.01µF
820kΩx7
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0
29
2001.01.15
Silan
Semiconductors SC91650/1/2 A/B
PACKAGE OUTLINE
DIP-18-300-2.54
UNIT:mm
6.40
7.62
0.25
2.54
1.50
15 degree
3.30
5.08
3.51
22.95
0.46
DIP-22-400-2.54
UNIT: mm
10.16
9.34
0.25
2.54
1.50
15 degree
3.30
5.08
3.51
27.88
0.46
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0
30
2001.01.15