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SC9270C PDF даташит

Спецификация SC9270C изготовлена ​​​​«Silan Semiconductors» и имеет функцию, называемую «DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER».

Детали детали

Номер произв SC9270C
Описание DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER
Производители Silan Semiconductors
логотип Silan Semiconductors логотип 

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SC9270C Даташит, Описание, Даташиты
SC9270
DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER
DESCRIPTION
The SC9270C/D is a complete DTMF receiver integrating both the
bandsplit filter and digital decoder functions. The filter section uses
switched capacitor techniques for high- and low-group filters and dial-
tone rejection. Digital counting techniques are employed in the decoder
to detect and decode all 16 DTMF tone-pairs into a 4-bit code. External
component count is minimized by on-chip provision of a differential
input amplifier, clock-oscillator and latched 3-state bus interface.
SOP-20-375-1.27
FEATURES
DIP-18-300-2.54
* Excellent performance
* CMOS, single 5 volt operation,
* Widely operating voltage: 1.2V ~ 5.25V
* Minimum board area
* Central office quality
* Low power consumption
* Power-Down mode (SC9270D only)
* Inhibit-mode (SC9270D only)
APPLICATIONS
* Paging systems
* Repeater systems / Mobile radio
* Credit card systems
* Remote control
* Personal computers
ORDERING INFORMATION
Device
SC9270C
SC9270D
SC9270DS
Package
DIP-18-300-2.54
DIP-18-300-2.54
SOP-20-375-1.27
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
Downloaded from Elcodis.com electronic components distributor
REV:1.2 2005.03.24
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SC9270C Даташит, Описание, Даташиты
SC9270
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2, 3)
Characteristics
Symbol
Value
Power Supply Voltage
VDD-VSS
6
Voltage on any pin
--
VSS-0.3 ~ VDD+0.3
Current at any pin
--
10
Operating temperature
Topr
-40~+85
Storage Temperature
Tstg
-65~+150
Package power dissipation
500
Note: 1. Absolute maximum ratings are those values beyond which damage to the device may occur.
2. Unless otherwise specified, all voltages are referenced to ground.
3. Power dissipation temperature derating: -12 mV / from 65°C to 85°C
Unit
V
V
mA
°C
°C
mW
RECOMMENDED OPERATING CONDITIONS (Note 1)
Characteristics
Symbol
Conditions
Min. Typ.(Note 2) Max. Unit
Positive Supply Voltages
VDD VSS=0V
1.2 5
-- V
Oscillator Clock Frequency
fc --
-- 3.579545 -- MHz
Oscillator Frequency Tolerance fc --
-- ±0.1 -- %
Note: 1. Voltages are with respect to ground(Vss), unless otherwise stated.
2 .Typical figures are at 25°C and for design aid only: not guaranteed and not subject to production testing.
DC ELECTRICAL CHARACTERISTICS
Characteristics
SUPPLY
Operating Supply Voltage
Operating Supply Current
Power Consumption
Standby Current
INPUTS
Low Level Input Voltage
High Level Input Voltage
Input Leakage Current
Pull up(Source) Current
Input Impedance (IN+, IN-)
Steering Threshold Voltage
OUTPUTS
Low Level Output Voltage
High Level Output Voltage
Output Low(Sink) Current
Output High(Source) Current
VREF Output Voltage
VREF Output Resistance
Symbol
Conditions
VDD --
ICC --
PO f=3.579MHz; VDD=5V
IS PWDN pin = VDD
VIL
VIH
IIH/IIL
ISO
RIN
VTSt
--
--
VIN= VSS or VDD
TOE(Pin 10)=0V
@1kHz
--
VOL
VOH
IOL
IOH
VREF
ROR
No load
No load
VOUT=0.4V
VOUT=4.6V
No load
--
Min. Typ. Max. Unit
1.2 -- 5.25 V
-- 3.0 7.0 mA
-- 15 35 mW
-- -- 100 µA
-- -- 1.5
3.5 --
--
-- 0.1 --
-- 7.5 15
-- 10 --
-- 2.35 --
V
V
µA
µA
M
V
-- 0.03 --
-- 4.97 --
1.0 2.5
--
0.4 0.8
--
2.4 -- 2.7
-- 10 --
V
µA
mA
mA
V
k
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2005.03.24
Page 2 of 13
Downloaded from Elcodis.com electronic components distributor









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SC9270C Даташит, Описание, Даташиты
SC9270
OPERATING CHARACTERISTICS
Gain Setting Amplifier
Characteristics
Symbol
Conditions
Input Leakage Current
IIN VSS < VIN < VDD
Input Resistance
RIN --
Input Offset Voltage
VOS --
Power Supply Rejection
PSRR 1kHz
Common Mode Rejection
CMRR -3.0V < VIN < 3.0V
DC Open Loop Voltage Gain
AVOL --
Open Loop Unity Gain Bandwidth
fC --
Output Voltage Swing
VO RL100kto VSS
Tolerable capacitive load(GS)
CL --
Tolerable resistive load(GS)
RL --
Common Mode Range
VCM No load
Notes : 1. All voltages referenced to VDD unless otherwise noted.
2. VDD = 5.0V, VSS = 0V, TA = 25°C .
Min. Typ. Max. Unit
-- ±100 -- nA
-- 10 -- M
-- ±25 -- mV
-- 60 -- dB
-- 60 -- dB
-- 65 -- dB
-- 1.5 -- MHz
-- 4.5 -- VPP
-- 100 -- PF
-- 50 -- k
-- 3.0 -- VPP
AC CHARACTERISTICS
(All voltage referenced to VSS otherwise noted; VDD=5.0V, VSS=0V, TA=25°C, fCLK=3.579545 MHz, using test
circuit of figure 2 & 3.)
Characteristics
SIGNAL CONDITIONS
Symbol
Test Conditions
Min. Typ. Max. Unit
-- Note:1,2,3,5,6,9,11
-- -- -40 dBm
Valid Input Signal Levels
-- Note:1,2,3,5,6,9,11
-- -- 7.75 mVRMS
(each tone of composite signal)
-- Note:1,2,3,5,6,9,11
+1 --
-- dBm
-- Note:1,2,3,5,6,9,11
883 --
-- mVRMS
Positive Twist Accept
-- Note:2,3,6,9,11
-- 10 -- dB
Negative Twist Accept
-- Note:2,3,6,9,11
-- 10 -- dB
Frequency Deviation Accept Limit
-- Note:2,3,5,9,11
±1.5%±2H
-- --
z
Frequency Deviation Reject Limit
-- Note:2,3,5,11
±3.5
--
--
Thrid Tone Tolerance
-- Note:2,3,4,5,9,13
-18.5
-- dB
Noise Tolerance
-- Note:2,3,4,5,7,9,10
-- -12
dB
Dial Tone Tolerance
TIMING
-- Note:2,3,4,5,8,9,11
-- +18 -- dB
Tone Present Detection Time
tDP Refer to Fig. 4. Note:12 5 14 16 ms
Tone Absent Detection Time
tDA Refer to Fig. 4. Note:12 0.5 4 8.5 ms
Tone Duration Accept
tREC User adjustable
-- -- 40 ms
Tone Duration Reject
tREC User adjustable
20 -- -- ms
Interdigit Pause Accept
tID User adjustable
-- -- 40 ms
Interdigit Pause Reject
tDO User adjustable
20 -- -- ms
(Continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2005.03.24
Page 3 of 13
Downloaded from Elcodis.com electronic components distributor










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