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13 MEMORY TONE / PULSE DIALER WITH REDIAL SAVE HANDFREE & HOLD FUNCTION
DESCRIPTION
SC91650/1/2 A/B
The SC91650A/B, SC91651A/B, SC91652A/B are 13-memory 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.
DIP-18
FEATURES
*13-memory Tone/Puls e switchable dialer *Three 16-digit one touch memory and ten 16-digit two touch 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 *Pulse-to-tone (PT) is provided for PBX operation *Flash key is available *Minimum tone duration is 100ms for SC91650, SC91651 or 91ms for SC91652 *Minimum intertone pause is 106ms for SC91650, SC91651 or 91ms for SC91652 *Uses 3.579545MHz crystal or ceramic resonator *Many options can be selected Mode (10PPS; 20PPS; Tone) M/B ratio (40:60;33:66) Pause time (3.6s;2.0s) Pulse number (n;n+1;10-n) Flash function (RESET;digit) (PT) pause time (3.6s;1.0s) Flash time (80ms; 93ms; 100ms; 200ms; 300ms; 600ms) Flash pause time (200ms; 1000ms) * Redial pause time (1ms) * Mixed dialing and cascade dialing is provided * Handfree function is provided for speaker phone application *Power on reset circuit is provided *Hold function is provided * Keytone is provided *Packaged in 18-DIP or 22-DIP
DIP-22
ORDERING INFORMATION
SC91650A SC91650B SC91651A SC91651B SC91652A SC91652B DIP-18 Package DIP-22 Package DIP-18 Package DIP-22 Package DIP-18 Package DIP-22 Package
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PIN CONFIGURATIONS
SC91650/1/2 A/B
HDI 1 2 3 4 5 6 7 8 9 10 11 SC91650/1B SC91652B 22 HDO 21 R4 20 R3 19 R2 18 R1 17 MODE 16 TONE 15 PO 14 HKS 13 VDD 12 HFO 18 R4 17 R3 16 R2 C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS HFI
C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS
1 2 3 4 5 6 7 8 9 SC91650/1A
15 R1 14 MODE 13 TONE 12 PO 11 HKS 10 VDD
PMUTE C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS 1 2 3 4 5 6 7 8 9 SC91652A 18 R4 17 R3 16 R2 15 R1 14 MODE 13 TONE 12 PO 11 HKS 10 VDD C1 C2 C3 C4 C5 OSCI OSCO XMUTE VSS HFI
1 2 3 4 5 6 7 8 9 10 11
22 KT 21 R4 20 R3 19 R2 18 R1 17 MODE 16 TONE 15 PO 14 HKS 13 VDD 12 HFO
SELECTION GUIDE
HDI SC91650A SC91650B SC91651A SC91651B SC91652A SC91652B N N N N N N HFI N PO Inverter Inverter Open drain Open drain Open drain Open drain PMUTE N N N N N Y KT N N N N N Y Tone Duration 100mS 100mS 100mS 100mS 91mS 91mS
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BLOCK DIAGRAM
XMUTE
SC91650/1/2 A/B
HDO HFO VDD PULSE GENERATOR SAVE MEMORY KERNEL CONTROL CKT. DECODER & DATA LATCH LNB MEMORY ROW/COLUMN PROGRAMMING COUNTER MEMORY D/A CONVERTER INPUT INTERFACE CKT. TONE KT
VDD
COL1 COL2 COL3 COL4 COL5 OSCI OSC. OSCO DIVIDER COLUMN INTERFACE CKT. INPUT INTERFACE CKT. PO
ROW1 ROW2 ROW3 ROW4
ROW INTERFACE CKT. VDD
MODE
HFI
HKS
HDI
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VSS
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KEYBOARD ASSIGNMENT
C1 C2
2 5 8 0
SC91650/1/2 A/B
C3
3 6 9 #
C4
SAVE F A RD/P
C5
EM1 EM2 EM3 ST
R1 R2 R3 R4
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
1 4 7 */T
1) */T: In pulse mode, execute PT function; In TONE mode, execute * key
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:
Row1
d): Flash time:
Row3 Row4
M/B ratio (%) 40:60 33:66
Flash time (ms) 600 300 93 200 *100 *80
NR R
NR NR R
NR R NR R
b): Pause time & PT wait time:
Row2
R *for SC91652 only
tp(sec) 3.6 2.0
tpT(sec) 3.6 1.0
NR R
e): Dialing out Pulse number:
Column3 Column4
Pulse number n n+1 10-n reserved
c): Flash Key function:
Column1
NR tFP(sec) 0.2/0* 1.0 NR R R
NR R NR R
Flash key Reset Digit
NR R
* for flash time = 80ms, 200ms only
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Note: 1). NR = No resistor connection to Vss. 2). R = A resistor connection to Vss (820k typically). 3). N = Pressed digit key.
SC91650/1/2 A/B
4). The following list is the corresponding pulse (break) numbers that are sent out by pressed the number keys. Digit key 1 2 3 4 5 6 7 8 9 0 * # Normal (n) 1 2 3 4 5 6 7 8 9 10 PT KEY ignored New Zealand (10-n) 9 8 7 6 5 4 3 2 1 10 PT KEY ignored Dialing signal option Sweden/Denmark (n+1) 2 3 4 5 6 7 8 9 10 1 PT KEY ignored
ABSOLUTE MAXIMUM RATINGS
(Tamb=25C, All voltage referenced to VSS, unless otherwise specified)
Characteristic
Power Supply Voltage Input Voltage Power Dissipation Operating Temperature Storage Temperature
Symbol
VDD VIN PD Topr Tstg
Value
6.0 -0.3~VDD+0.3 500 -25~+70 -55~+150
Unit
V V mW C C
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ELECTRICAL CHARACTERISTICS
SC91650/1/2 A/B
Conditions
Tone
(Tamb=25C, VDD=2.5V, fosc=3.579545MHz, All voltage referenced to VSS, unless otherwise specified)
Parameter
DC Characteristics
Symbol
Min
2.0 2.0 1.0 --
Typ
--0.4 0.2
Max
5.5 5.5 5.5 1 0.5
Unit
Operating Voltage
VDD
Pulse Memory retention Tone OFF-HOOK, Keypad entry with pull down Pulse resistance OFF-HOOK, Keypad entry No
V
Operating Current
IOP
--
mA
20 --VSS 0.7VDD -0.2 -2 200 --0.2 0.2 -0.2 0.2 0.2 0.2 -------10 400 20 200 --200 ----10 20 40:60 33:66 0.1 0.1
80 1.0 1.0 0.3VDD VDD 1 -0.1 50
A A A V A mA A
Standby Current Memory Retention Current Control Pin Input Low Voltage Control Pin Input High Voltage
IS Imr Vil Vih Imth Imtl Ihks Ikbd Ikbs tDB Rhfi Ihdoh Ihdol Rhdi Ihdoh Ihdol Ipoh Ipol fpr tM tB
ON-HOO K No keypad entry ON-HOO K VDD=1.0V --V XMUTE =6.0V V XMUTE =0.5V Vhks=2.5V Vn=0V note1 , No resistors connected t o VSS Vn=2.5 note1 No resistors connected t o VSS -VDD=2.5V Vhfo=2.0V Vhfo=0.5V VDD=2.5V Vhdo=2.0V Vhdo=0.5V Vpo=2.0V(SC91650 only) Vpo=0.5V
XMUTE Pin Leakage Current
XMUTE Pin Sink Current
HKS Pin Input Current Keyboard Scanning Pin Drive Current Sink Current
A 800 -------------ms k mA mA k mA mA mA mA pps %
Key-in Debounce Time HFI pin input resistor HFO pin drive current HFO pin sink current
HDI pin pull high resistor
HDO pin drive current HDO pin sink current Pulse Mode Pulse Output Pin Leakage Current Pulse Output Pin Sink Current Pulse Rate Make/Break Ratio
(to be continued)
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(continued)
SC91650/1/2 A/B
Conditions
M/B ratio=40:60 M/B ratio=33:66 Pulse rate=10pps Pulse rate=20pps VDD=2.0V~5.5V Vdtmf=0.5V Row group Dist. -23dB VDD=2.0~5.5 V, Column-Row group RL=5K Auto redial Auto redial RL=5K
Parameter
Pre-digit Pause Inter-digit Pause Tone Mode DC Level Tone Output Pin Sink Current AC level Load Resistor DTMF Signal Pre-emphasis Distortion Minimum tone duration Time (note 3) Minimum Intertone Pause Time (note 3)
Symbol
tPDP tIDP
Min
----0.5VDD 0.2 130 5 1 ------
Typ
40 33 800 500 --155 -2 -30 100 91 106 91
Max
----0.7VDD -180 -3 -23 -----
Unit
ms ms
Vdc Itl Vdtmf RI twist Dist. tTD tITP
V mA mVrms K dB dB ms ms ms ms
Note: 1. Vn: Input voltage of any keyboard scanning pin (Row group, Column group) 2 Distortion (dB) = 20log{[V12+V22+V32+...Vn2)1/2]/[(VL2+VH2)1/2]} VL,VH: Row group and Column group signal , V1 V2... Vn: Harmonic signal (BW = 300Hz ~ 3500Hz
ACTUAL FREQUENCY OUTPUT (fosc=3.579545MHz)
Keyboard Scanning Pin
R1 R2 R3 R4 C1 C2 C3 f1 f2 f3 f4 f5 f6 f7
Standard(Hz)
697 770 852 941 1209 1336 1477
Output
699 766 848 948 1216 1332 1472
Deviation(%)
+0.28 -0.52 -0.47 +0.74 +0.57 -0.30 -0.34
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PIN DESCRIPTION
Pin No. 650A/B 651A/B 652A/B
1 2 1 2 1 2
SC91650/1/2 A/B
Description
*Provides keyboard scanning.
Pin Name
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
C2
R1 R2 R3 R4 C4 C3 C2 C1
3
4
3
4
3
4
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 single key. *To avoid keyboard-bouncing error, this chip provides built-in debounce circuit. (Th e debounce time = 20ms)
16
19
16
19
16
19
R2
17
20
17
20
17
20
R3
Row
Column
Row Column
Figure1a: Single contact form keyboard configuration Row
Figure1b: Dual contact form keyboard configuration VDD VSS
18
21
18
21
18
21
R4
Column
VDD VSS
Figure1c: Electronic signal input keyboard configuration
(to be continued)
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(continued)
SC91650/1/2 A/B
Description
*Oscillator input & output pins.
Pin No. 650A/B 651A/B 652A/B
6 7 6 7 6 7
Pin Name
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. *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.
8
9
8
9
8
9
XMUTE
9 10
10 13
9 10
10 13
9 10
10 13
VSS VDD
*Negative power supply pin. *Positive power supply pin. *Hook switch input pin. *When the handset is in ON-HOOK state, this pin must be pulled "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).
11
14
11
14
11
14
HKS
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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(continued)
SC91650/1/2 A/B
Description
*Handfree input control pin. (SC91650, SC91651) *Toggle input structure, rising edge trigger. *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 200k typical. * Toggle input structure with pull up resistance 200k, 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
Pin No. 650A/B 651A/B 652A/B
Pin Name
11
11
HFI
11
HFI
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. *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 200k typically. *Hold line output pin. *Inverter output structure, falling edge trigger. *When a falling edge signal triggered HDI pin, Hold line function will
1
1
HDI
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). *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. *CMOS inverter output structure. *The output is high state during dialing sequence (pulse mode only), otherwise this pin is low.
22
KT
1
PMUTE
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KEYBOARD OPERATION
Symbol definitions:
a) b) c) d) e) f) g) h) i) j) k) l) m) n) D1~Dn Dp1~Dpn Dt1~Dtn tF tP tPT tFP tRP LNB M1 ... Mm : : : : : : : : : : : : : :
SC91650/1/2 A/B
OFF-HOOK or enable Hand Free function. ON-HOOK or disable Hand Free function. Input level from low to high. Input level from high to low. Digit key 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, (C1~Cn is same as D1~Dn). Pulse digit Tone digit Flash time. Pause time. Pulse to Tone wait time. Pause time for flash. Pause time for redial. Last number redial buffer. Memory location; 1, 2, 3, 4, 5, 6, 7, 8, 9, 0. 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, (Cp1~Cpn is same as Dp1~Dpn). 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, #, (Ct1~Ctn is same as Dt1~Dtn).
A Normal Dialing
1. Digit Dialing Procedure Dial out Dial out LNB 2. Dialing with flash key Procedure Dial out Dial out LNB LNB : t F, t F, D1, F, D1, D2..., Dn tFP, tFP, Dt1, Dp1, Dtn (in Tone mode) ..., Dpn (in Pulse mode) D1, D2..., Dn Dtn (in Tone mode)
Dt1, Dp1, D1,
Dt2...,
Dp2,..., Dpn (in Pulse mode) D2..., Dn
Dt2..., Dp2,
D2...,
Dn (reset function only)
Un change (Digit Function only)
3. Dialing with PT key Procedure Dial out LNB D1, D1, D2 ..., PT , ..., Dn
Dp1,
Dp2, ..., D2 ...,
tPT, ..., Dpn (in Pulse mode) Dn
PT , ...,
Note: If key in digit over maximum digit stored in LNB, then RD is inhibit even after on/off hook.
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B Mixed dialing
Procedure D1, D1, Dial out LNB Dp1, D1, D2..., D2..., Dp2, ..., MODE=
SC91650/1/2 A/B
, D9, D10 ..., Dn Dtn Dn; or PT , D9, D10 ..., tPT, Dt9, Dt10..., Dn
D2..., PT ,
D9,
D10 ...,
C Redial
LNB Procedure Dial out Dial out D1, tRP, tRP, D2..., RD Dt2..., Dp2,..., Dtn (In Tone mode) (in Pulse mode) Dpn Dn
Dt1, Dp1,
Note: If key in digit over maximum digit stored in LNB, then RD is inhibit.
D Pause Function
Procedure Dial out Dial out LNB D1, D2..., Dn, P, C1 ..., Dtn, tP, Ct1, Cn Ctn (in Tone mode) Cpn (in Pulse mode)
Dt1, Dp1,
Dt2 ,...,
Dp2, ... Dpn , tP, Cp1 ...,
D1, D2..., Dn, P , C1, C2 ..., Cn
E Flash Function 1. Reset
Procedure Dial out Dial out LNB D1, D2..., Dn, F, C1 ..., Cn (in Tone mode) (in Pulse mode) Dt1, Dp1, C1, Dt2,..., Dtn , t F, Dp2,..., Dpn , C2 ..., Cn tFP, t F, Ct1 ..., Ctn
tFP, Cp1 ..., Cpn
2 Digit
Procedure Dial out Dial out LNB D1, D2..., Dn, F, C1 ..., Cn (in Tone mode) (in Pulse mode) Dt1, Dp1, D1, Dt2,..., Dtn , t F, Dp2,..., Dpn , D2 ..., Dn tFP, t F, Ct1 ..., Ctn
tFP, Cp1 ..., Cpn
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F One Touch Memory Function 1. Store Memory
Procedure Dial out EMn = D1, D2,...... Dn D1, ST, D1, ST, D1, D2..., Dn, ST,
SC91650/1/2 A/B
EMn
Nothing
Procedure Dial out EMn =
D2......,F, ...... Dn,
ST,
EMn
Nothing D2,......,F, ......Dn D1, ST, D1, D2......,P, ...... Dn, ST, EMn
Procedure Dial out EMn =
Nothing D2,......,P, ......Dn D1, ST, D1, D2......,PT, ...... Dn, ST, EMn
Procedure Dial out EMn =
Nothing D2,......, PT, ......Dn
2 Quickly Store
Procedure Dial out EM1 LNB = D1, D2; EM2 ST, D1, D2, ST, EM1, ST, D3, D4, D5, St, EM2, ST, EMn EMn = D3, D4, D5 Nothing = D3, D4, D5, D2 ..., Dn
D1,
3 Redial
EMn = D1 , D2, ......Dn EMn Procedure Dial out Dial out LNB
Dt1, Dp1, D1,
Dt2, ...... Dtn (in tone mode) Dp2, ...... Dpn (in pulse mode) D2,......Dn
G Two Touch Memory Function 1. Store Memory
Procedure Dial out EMn = D1, D2,...... Dn D1, ST, D1, D2......,F, ...... Dn, ST, EMn ST, D1, D2..., Dn, ST, EMn Nothing
Procedure Dial out EMn =
Nothing D2,......,F, ......Dn D1, ST, D1, D2......,P, ...... Dn, ST, EMn
Procedure Dial out EMn =
Nothing D2,......,P, ......Dn
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Procedure Dial out EMn = D1, ST, D1, Nothing D2,......, PT, ......Dn
SC91650/1/2 A/B
D2......,PT, ...... Dn, ST, EMn
2 Quickly Store
Procedure Dial out EM1 LNB = D1, D2; EM2 ST, D1, D2, ST, EM1, ST, D3, D4, D5, St, EM2, ST, EMn EMn = D3, D4, D5 Nothing = D3, D4, D5, D2 ..., Dn
D1,
3 Redial
EMn = D1 , D2, ......Dn EMn Procedure Dial out Dial out LNB
Dt1, Dp1, D1,
Dt2, ...... Dtn (in tone mode ) Dp2, ...... Dpn (in pulse mode) D2,......Dn
H Save Function 1. The Second Redial Memory
Procedure Dial out Dial out LNB : D1, Dt1, Dp1, 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 Dial out Dial out SAVE LNB : : : ST, D1, D2, ...... Dn, conversation, ST, C1, C2, ...... Dt1, Dp1, C1, C1, Dt2 , ...... Dtn (in tone mode) Dp2, C2, C2, ...... Dpn (in pulse mode) Cn, ST, SAVE
...... Cn ...... 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 Procedure Dial out Dial out LNB LNB : : D1, D2, SAVE ...... Dn
Dt1, Dp1, D1,
Dt2, ...... Dtn (in tone mode ) Dp2, ...... Dpn (in pulse mode) D2,......Dn(SC91652 only)
Un change (SC91650, SC91651)
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I Cascade Dialing 1. Normal Dialing and Memory
Procedure
SC91650/1/2 A/B
D1, D2, ...... Dn, EM1, EMm ... EMn, A, Mn
2. One Touch Memory and Memory
Procedure EMm ...... Emn, A, Mn
3. LNB and Memory
Procedure RD, EM1, EMm ...... 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 ON HKS (1) HF LINE HF HD HD OFF ON HKS (5) HF LINE HF OFF OFF ON OFF HKS (2) LINE HF ON HF OFF HKS (3) HF LINE HD HF HD OFF HKS (4) LINE HD
ON
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STATE NO. (0) INITIAL STATE (1) ON HKS HF LINE (2) OFF HKS LINE (3) OFF HKS HF LINE (3) OFF HKS HD LINE (3) ON HKS HD LINE
PO XMUTE
SC91650/1/2 A/B
HFO 0 1 0 1 0 0 HDO 0 0 0 0 1 1 ON/OFF: ON/OFF HKS HF: Depress HF key HD: Depress HF key F: Floating (Hi-impedance)
PO is floating for SC91651/
0/F 1/F 1/F 1/F 1/F 1/F
F F F F 0 0
SC91652 struc-ture.
open
drain
TEST CIRCUIT
1
Operation current
V+
2
A
Standby current
V+
A
VDD
keyboard
HKS
MODE VSS
DP DP DT
VDD
HKS
VSS
3 Tone output voltage
V+
4 counter and AC meter
TONE
Tone distortion
V+
VDD
VDD
keyboard
VSS
Spectrum analyzer
TONE HKS
keyboard
10K VSS
HKS
V
10K
5
Pulse output sink current (open drain structure)
V+
6
Pulse output sink current (inverter structure)
V+
Flash key
VDD
PO HKS
A V
VEXT
VDD
HKS PO VSS
A V
VEXT
VSS
7 Keypad input current (row group)
V+
8 keypad input current (column group)
V+
A
ROW
VDD
R* C*
VDD COLUMN
R* C*
HKS VSS MODE
A
HKS VSS MODE
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
16
Silan Semiconductors
Note: 1. Dist. (dB)=20log{[V12+V22+V32+...Vn2)1/2]/[(VL2+VH2)1/2]}
SC91650/1/2 A/B
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 KEY IN
tDB
2
3
XMUTE **PO TONE
tTD tITP tITP tITP
OSCO Normal dialing Tone Mode Timming Diagram ......High impedance
HKS 3 KEY IN PMUTE
tDB
2
3
XMUTE
tPDP tB tTD tIDP tM
**PO TONE OSCO
tIDP
tIDP
Normal dialing Pusle Mode Timming Diagram
......High impedance
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
17
Silan Semiconductors
TIMING DIAGRAMS (continued)
HKS 3 KEY IN
tDB
SC91650/1/2 A/B
2
PT
3
XMUTE
tPDP
**PO TONE OSCO ......High impedance Timming Waveform for mixed dialing Operation (by */T key entry) for SC91650, SC91651
tIDP tIDP tPT tITP
HKS 3 KEY IN
tDB
2
3
MODE XMUTE
tPDP
**PO TONE OSCO ......High impedance Timming Waveform for mixed dialing Operation (by mode selection pin switches) for SC91650, SC91651
tIDP tIDP tPT tITP
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
18
Silan Semiconductors
TIMING DIAGRAMS (continued)
HKS 3 KEY IN
tDB
SC91650/1/2 A/B
2
*/T
3
XMUTE
tPDP
PO DTMF OSCO ......High impedance Timming Waveform for mixed dialing Operation (by */T key entry) for SC91652 only
tIDP tIDP tPT tITP
HKS KEY IN
F
tDB
XMUTE PO TONE OSCO ......High impedance Flash key operating timming
tF
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
19
Silan Semiconductors
TIMING DIAGRAMS (continued)
HKS 3 KEY IN
tDB
SC91650/1/2 A/B
2
3
MODE XMUTE
tPDP
PO DTMF OSCO ......High impedance Timming Waveform for mixed dialing Operation (by mode selection pin switches) for SC91652 only
tIDP tIDP tPT tITP
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
20
Silan Semiconductors
TIMING DIAGRAMS (continued)
HKS 1 KEY IN
tDB
SC91650/1/2 A/B
2
RD
XMUTE **PO
tITP tITP
tRP
tITP tD
tITP
TONE OSCO
AUTO DIALING Tone Mode Redial Timming Diagram ......High impedance
HKS 3 KEY IN
tDB
2
RD
XMUTE
tRP tIDP tIDP
**PO
tIDP tIDP
TONE OSCO
......High impedance Pulse Mode Redial Timming Diagram
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
21
Silan Semiconductors
TIMING DIAGRAMS (continued)
HKS KEY IN
*PULSE MODE
SC91650/1/2 A/B
3
tDB
2
P
3
XMUTE **PO TONE OSCO
*TONE MODE
tPDP
tIDP
tIDP
tP
tIDP
tDB
XMUTE **PO
tITP tITP tP tITP
TONE OSCO ......High impendance Pause key operating timming (for SC91650, SC91651)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
22
Silan Semiconductors
TIMING DIAGRAMS (continued)
HKS KEY IN
*PULSE MODE
SC91650/1/2 A/B
3
tDB
2
P
3
XMUTE PO DTMF OSCO
*TONE MODE
tPDP
tIDP
tIDP
tP
tIDP
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
TF TFP
TONE OSCO
......High impedance Flash key operation timing
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
23
SC91650/1/2 A/B
1N4004x4 22M
ON HOOK
100k A92
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Tip
OFF HOOK
240k 3.3k A42 47k
2.2k IN4148 0.1F
220k IN4148 2SC945
Ring ZNR 120V
470k 100F 16V ZD 5.1V
1F 16V
100k 2SC945
1
2 5 8 0 # RD/P ST 9 A EM3 6 F EM2
3
SA EM1
15 R1 16 R2 17 R3 18 R4
PO
VDD
HKS TONE 13
0.2F 1.5k
TYPACAL APPLICATION CIRCUIT(for SC91650A)
4 7 */T
200
12
10
11
REV: 1.0
2001.01.15
XMUTE 8
VDD 10pps 3.579545MHz 20pps TONE 0.01F
SC91650A
SPEECH NETWORK
C5 C4 C3 C2 C1 OSCI OSCO VSS MODE 5 4 3 2 1 6 7 9 14
Silan Semiconductors
MODE SW
820k x7
R
24
SC91650/1/2 A/B
1N4004x4 100k MPSA92 4.7k 200k 0.1F 3 2 100k 1F 47F 3.3k 2.7V 47k C945 HF KEY 1.2k 1F 4.7k 1 H66T C945 470k 100F 16V 1F IN4148 Tip
ON HOOK
22M
Ring ZNR 120V
IN4148 C945 5.1V 0.2F 200
14 HKS 15 PO
13 16 VDD TONE OSCI 7
3.579545MHz
OSCO 8 11 HFI
XMUTE 9
TYPACAL APPLICATION CIRCUIT (for SC91650B)
HFO 12 22 HDO VDD
470k C945 10F 50V 220k 22k 100k HD KEY 1F C945 1F
2 to 4 wire speech network & audio amplifier
REV: 1.0
2.2k
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
240k
2001.01.15
TO HANDSET
SC91650B R1 18 1 HDI R2 19 R3 20 R4 21 C1 2 MODE VSS C5 C4 C3 C2 10 6 5 4 3 17
VDD MODE SW 10pps 20pps TONE 0.01F
1 4 7
2
3
SA EM1
5
6
F
EM2
8
9
A
EM3
Silan Semiconductors
*/T
0
#
RD/P ST
820k x7
25
SC91650/1/2 A/B
1N4004x4 22M
HOOK SW ON
100k MPSA92 IN4148
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Tip
OFF
40k Ring ZNR 120V MPSA42 100k 2.2k
2.7k IN4148x2 2SC945 220k 100F 16V ZD 5.1V
1F 16V 0.1F
100k
470k
12
1 2 5 8 0 # R/P ST 9 A EM3 6 F EM2 3 SA EM1
10 15 R1 16 R2 17 R3 18 R4 PO VDD
11 HKS
TYPACAL APPLICATION CIRCUIT (for SC91651A)
4 7 */T
TONE 13
SC91651A
XMUTE 8
C5 C4 C3 C2 C1 OSCI OSCO VSS MODE 5 4 3 2 1 6 7 9 14
VDD
Silan Semiconductors
10pps 20pps 3.579545MHz TONE
MODE SW 820k x7 R 0.01F
26
2 wire to 4 wire speech netwok
REV: 1.0
330k 100F 16V
2001.01.15
SC91650/1/2 A/B
1N4004x4 100k MPSA92 330k 4.7k 200k 0.1F 3 2 100k 1F 47F 3.3k 2.7V 47k C945 100k HF KEY 1.2k 1F 4.7k 1 H66T C945 470k 100F 16V 1F IN4148 Tip
ON HOOK
22M
Ring ZNR 120V
IN4148 C945 5.1V 0.2F 200
14 HKS 15 PO
13 16 VDD TONE OSCI 7
3.579545MHz
OSCO 8 11 HFI
XMUTE 9
TYPACAL APPLICATION CIRCUIT (for SC91651B)
22 HDO VDD
470k C945 10F 50V HD KEY 1F
SC91651B R1 18 1 HDI
220k
TO HANDSET
1
2
3
SA EM1
R2 19
1F C945 22k 100k
4
5
6
F
EM2
R3 20 R4 21 C1 2 MODE VSS C5 C4 C3 C2 10 6 5 4 3 17
VDD MODE SW 10pps 20pps
7
8
9
A
EM3
Silan Semiconductors
*/T
0
#
RD/P ST
TONE
820k x7 0.01F
27
HFO
HFO 12
2 to 4 wire speech network & audio amplifier
REV: 1.0
2.2k
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
240k 47k
2001.01.15
SC91650/1/2 A/B
1N4004x4 Tip MPSA92 IN4148 240k Ring ZNR 120V MPSA42 100k 2.2k
OFF HOOK SW ON
22M
100k
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
2.7k IN4148x2 2SC945 330k 100F 16V 100F 16V ZD 5.1V 220k 1F 16V 0.1F 100k 470k
12
1 2 5 8 0 # R/P ST 9 A EM3 6 F EM2 3 SA EM1
10 15 R1 16 R2 17 R3 18 R4 PO VDD
11 HKS
TYPACAL APPLICATION CIRCUIT (for SC91652A)
4 7 */T
TONE 13
SC91652A
XMUTE 8
C5 C4 C3 C2 C1 OSCI OSCO VSS MODE 5 4 3 2 1 6 7 9 14
VDD
Silan Semiconductors
10pps MODE 20pps SW 3.579545MHz TONE 820k x7 R 0.01F
28
2 wire to 4 wire speech netwok
REV: 1.0
2001.01.15
Silan Semiconductors
TYPACAL APPLICATION CIRCUIT (for SC91652B)
1N4004x4 Tip
ON HOOK
SC91650/1/2 A/B
22M IN4148
100k MPSA92 330k 240k
200k C945 470k 100F 16V 1F 5.1V
2.2k IN4148 C945
Ring
ZNR 120V
100k
1F
0.2F
200
3.3k 47k C945 100k MODE SW 47k HF KEY HFO 1F 3.579545MHz VDD 10pps 20pps TONE 0.01F
14 HKS 15 PO 11 HFI
13 16 VDD TONE PMUTE 1 KT 22
XMUTE 9
2 to 4 wire speech network & audio amplifier
HFO 12 SC91652B 7 OSCI R1 18 R2 19 8 OSCO R3 20 17 MODE VSS C5 C4 C3 10 6 5 4 R4 21 C1 2 C2 3
7 */T 8 0 9 # A EM3 RD/P ST
TO HANDSET
1 4
2 5
3 6
SA EM1 F EM2
820k x7
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
29
Silan Semiconductors
PACKAGE OUTLINE
SC91650/1/2 A/B
UNIT:mm
2.54
DIP-18-300-2.54
6.40
1.50 22.95
7.62
15 degree
3.51
0.46
DIP-22-400-2.54
2.54
3.30
5.08
UNIT: mm
9.34
1.50 27.88
10.16
15 degree
3.51
0.46
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
REV: 1.0 2001.01.15
30
3.30
5.08
0.25
0.25

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