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參數(shù)資料
| 型號： | KT3170N |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | LOW POWER DTMF RECEIVER |
| 中文描述： | 低功耗雙音多頻接收器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 117K |
| 代理商： | KT3170N |
KT3170 LOW POWER DTMF RECEIVER
INTRODUCTION
The KT3170 is a complete Dual Tone Multiple Frequency
(DTMF) receiver that is fabricated by low power CMOS
and the Switched-Capacitor Filter technology.
This LSI consists of band split filters, which seperates
counting section which verifies the frequency and
duration of the received tones before passing the cor-
responding code to the output bus. It decodes all 16
DTMF tone pairs into a 4bits digital code.
The externally required components are minimized by
on chip provision of a differential input AMP, clock
oscillator and latched three state interface. The on chip
clock generator requires only a low cost TV cystal as
an external component.
FEATURES
Detects all 16 standard tones.
Low power consumption : 15mW (Typ)
Single power supply : 5V
Uses inexpensive 3.58MHz crystal
Three state outputs for microprocessor interface
Good quality and performance for using in
exchange system
Power down mode/input inhibit
APPLICATIONS
PIN CONFIGURATION
PABX
Central Office
Paging Systems
Remote Control
Credit Card Systems
Key Phone System
Answering Phone
Home Automation System
Mobile Radio
Remote Data Entry
Fig. 1
Device
Package
Operating
KT3170N
18-DIP-300A
- 25
°
C ~ + 75
°
C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
KT3170
IN+
IN-
GS
V
REF
I
IN
PDN
OSC1
OSC2
GND
V
DD
SI/GTO
ESO
DSO
Q4
Q3
Q2
Q1
OE
18-DIP-300A
ORDERING INFORMATION
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