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PDF SC9302 Data sheet ( Hoja de datos )
| Número de pieza | SC9302 | |
| Descripción | 2-MEMORY T/P DIALER | |
| Fabricantes | Silan Microelectronics | |
| Logotipo |  |
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SC9302 series
2-MEMORY T/P DIALER WITH REDIAL & HANDFREE,HOLD FUNCTION
DESCRIPTION
The SC9302 series tone/pulse dialers are CMOS LSIs for the
telecommunication system. They are designed to meet various dialing
specifications through resistor options matrix.
The SC9302 series tone/pulse dialers are offered in four different
versions. They are SC9302X normal version, SC9302/F/G/H simple
version, SC9302XT key-tone version and SC9302XLT key-tone/lock
functions version. The SC9302X normal version provides the pin-
selected lock function; the SC9302XT version provides the key-tone
function; the SC9302XLT version provides both the key-tone function
and key board-operated IDD lock function. All of the above three
versions also supply the following functions: Hold-line, Hand-free and
LCD dialing number display interface, all of which are suitable for
feature phone applications. However, the SC9302F/G/H version is
simpler than the other three versions. It provides only a redialing
memory for a simple low-cost system application.
FEATURES
* Universal specification
* Operating voltage: 2.0V~5.5V
* Low stand-by current
* Low memory retention current:0.1µA(Typ.)
* Tone/pulse switchable
* Interface with LCD driver
* 32 digits for redialing
* 32 digits for the SA memory dialing
* One-key redialing
* Pause and P→T key for PBX
* 4x4 keyboard matrix
* 3.58MHz crystal or ceramic resonator
SDIP-24
SC9302D Package
* Hand-free control
* Hold-line control
* Pause, P→T can be saved for
redialing
* Lock function
* Key tone function
* Resistor options:
-M/B ratio
-Flash function and flash time
-Pause and P→T duration
-Pulse number
-Keyboard operated IDD lock
function
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 1 of 35
1 page  
SC9302 series
PULSE MODE ELECTRICAL CHARACTERISTICS (Tamb=25°C, fosc=3.5795MHz, unless otherwise specified)
Characteristics
PO Output Source Current
PO Output Sink Current
Pulse Rate
Make/Break Ratio
Pre-digit-pause Time
Inter-digit-pause Time
Pulse Make Duration
Pulse Break Duration
Symbol
IPOH
IPOL
PR
M/B
TPDP
TIDP
TM
TB
Test Conditions
VDD
Condition
2.5V VOH =2V
2.5V VOL =0.5V
MODE pin is
-- connected to VDD
MODE pin is opened.
A resistor is linked
between R2 and C1 .
--
No resistor is linked
between R2 and C1 .
M/B ratio =40:60
--
M/B ratio =33:66
Pulse rate =10pps
--
Pulse rate =20pps
A resistor is linked
between R2 and C1 .
--
No resistor is linked
between R2 and C1 .
A resistor is linked
between R2 and C1 .
--
No resistor is linked
between R2 and C1 .
Min. Typ. Max.
-0.2 --
0.2 0.6
--
--
-- 10 --
-- 20 --
-- 33:66 --
-- 40:60 --
40(10pps)
--
20(20pps)
33(10pps)
--
17(20pps)
-- 800
-- 500
33(10pps)
--
17(20pps)
40(10pps)
--
20(20pps)
66(10pps)
--
33(20pps)
60(10ps)
--
30(20pps)
--
--
--
--
--
--
--
--
Unit
mA
mA
pps
%
ms
ms
ms
ms
TONE MODE ELECTRICAL CHARACTERISTICS (Tamb=25°C, fosc=3.5795MHz, unless otherwise specified)
Characteristics
DTMF Output DC Level
DTMF Sink Current
DTMF Output AC Level
DTMF Output Load
Column Pre-emphasis
Tone Signal Distortion
Minimum Tone Duration
Minimum Inter-tone Pause
Symbol
VTDC
ITOL
VTAC
RL
ACR
THD
tTMIN
tITPM
Test Conditions
VDD Condition
Min. Typ.
-- -- 0.45VDD --
2.5V VDTMF =0.5V
0.1 --
-- Row group, RL =5kΩ 0.12 0.155
2.5V THD ≤ -23dB
5 --
2.5V Row group = 0dB
12
2.5V RL =5kΩ
-- -30
Auto- Others -- 82.5
--
redial 9302G -- 100
Auto- Others -- 85.5
--
redial 9302G -- 106
Max. Unit
0.7VDD V
-- mA
0.18 Vrms
-- kΩ
3 dB
-23 dB
--
ms
--
--
ms
--
THD (Distortion)(dB)=20log ( V12 + V22 + ...+ Vn2 / Vi2 + Vh2 )
Vi, Vh: Row group and column group signals; V1,V2, … Vn: Harmonic signals (BW=300Hz~3500Hz)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 5 of 35
5 Page 
SC9302 series
9. HAND-FREE FUNCTION OPERATION
• Hand-free function table
Current State
Input
Next State
HKS
HFO
HDO
HDI
HFI
HKS
HFO
HDO
H L X H L An L An
H L XH
An H
L
HHXH
An L An
HXLHL L L L
L L X H L An L An
L LXH
An H
L
LHLH
An L An
L X X H L H An An
XXL
L An L
H
H: Logic HIGH
X: Don’t care
L: Logic LOW
An: Unchanged
: Rising edge
: Falling edge
• Hand-free function execution
When HFO is low, a rising edge triggers the HFI, asserting the Hand-free function (HFO becomes high).
• Reset Hand-free function
When HFO is high, the Hand-free function is enabled and can be reset by:
* Off-hook
* Applying a rising edge to HFI
* Changing the HDO pin from low to high
10. HOLD-LINE FUNCTION OPERATION
• Hold-line function execution
When HDO is low, a falling edge triggers the HDI , asserting the Hold-line function (HDO becomes high). The
XMUTE remains low when HDO is high.
• Reset Hold-line function
When HDO is high, the Hold-line function is enabled and can be reset by:
* Off-hook.
* Applying a falling edge to HDI .
* Changing the HFO pin from low to high.
• Hold-line function table
Current State
Input
Next State
HKS
HDO
HFO
HFI
HDI
HKS
HDO
HFO
H L X L H An L An
HLXL
An H
L
HHL L
An L An
HXXLHL L L
L L X L H An L An
LLXL
An H
L
LHL L
An L An
L X X L H H An An
XXL
H An L
H
H: Logic HIGH
X: Don’t care
L: Logic LOW
An: Unchanged
: Rising edge
: Falling edge
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.08.03
Page 11 of 35
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SC9302.PDF ] | |
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