SC9270C/D 查看數據表（PDF） - Silan Microelectronics
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SC9270C/D Datasheet PDF : 12 Pages
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Silan
Semiconductors
SC9270C/D
BLOCK DIAGRAM
VDD VSS PWDN
18 9 6
VREF
4
BIAS
-
CIRCUIT
+
Chip ref
Chip power Chip bias
IN+ 1
+
IN- 2
-
DIAL
TONE
FILTER
GS 3
HIGH GROUP
FILTER
Zero crossing detectors
HIGH GROUP
FILTER
INH
5
DIGITAL
DETECTION
ALGORITHM
CODE
CONVERTER
AND
LATCH
11 Q1
12 Q2
13 Q3
14 Q4
Chip clock
St STEERING
GT LOGIC
7
OSCI
8
OSCO
17
St/GT
16
15
10
ESt
StD
TOE
Figure 1. block diagram
ABSOLUTE MAXIMUM RATINGS (Notes 1, 2, 3)
Characteristic
Power Supply Voltage
Voltage on any pin
Current at any pin
Operating temperature
Symbol
VDD-VSS
--
--
Topr
Value
6
VSS-0.3 ~ VDD+0.3
10
-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)
Parameter
Symbol
Conditions
Min
Positive Supply Voltages
VDD VSS=0V
1.2
Oscillator Clock Frequency
fc
--
--
Oscillator Frequency Tolerance
∆fc --
--
Note: 1. Voltages are with respect to ground(Vss), unless otherwise stated.
Typ(Note 2)
5
3.579545
±0.1
Max
--
--
--
Unit
V
MHz
%
2 .Typical figures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1 2001.04.27
2
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