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參數(shù)資料
| 型號(hào)： | KK9270ND |
| 廠商： | KODENSHI CORP. |
| 英文描述： | DTMF RECEIVER High-Performance Silicon-Gate CMOS |
| 中文描述： | 雙音多頻接收高性能硅柵CMOS |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 443K |
| 代理商： | KK9270ND |
TECHNICAL DATA
DTMF RECEIVER
High-Performance Silicon-Gate CMOS
KK
9270
ORDERING INFORMATION
KK
9270N/D
T
A
= -10
°
to 70
°
C
The
KK
9270N/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.
Complete receiver in an 18-pin package.
Excellent performance.
CMOS, single 5 volt operation.
Minimum board area.
Central office quality.
Low power consumption.
D SUFFIX
SOIC
LOGIC DIAGRAM
PIN 9 = GND
PIN 18 = V
CC
PINS 5,6 = NO CONNECTION
PIN ASSIGNMENT
*
Connect to GND
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