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MX315A Datasheet

  • MX315A

  • CTCSS Encoder

  • 11頁(yè)

  • CMLMICRO

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DATA BULLETIN
MX315A
Features

Field Programmable Tone
Encoder

40 CTCSS Frequencies

Crystal-Controlled Frequency
Stability

Low Distortion Sinewave Output

Few External Components
Required

CMOS Low Power Requirements
CTCSS Encoder
Applications

Mobile Radio Base Stations & Repeater
Stations

Mobile Radios

Hand-Held Radios

Industrial Controls

Intercom Systems

Door-Entry Systems
Xtal/Clock
Clock
Generator
Xtal
D0-D5
Binary
Rate
Multiplier
Programmed Clocks
TX Tone
Sinewave
Output
Emitter
Follower
V
DD
TX Enable
TX Tone
Square
Wave
TX Tone Output
Enable
TX Enable
The MX315A is a monolithic CMOS tone encoder for sub-audible tone squelch systems, which provides three
additional frequencies over the earlier MX315A. These frequencies are 69.3, 97.4 and 206.5Hz. The tone
frequencies are derived from an input reference frequency. An on-chip inverter is provided to drive an
external crystal circuit.
Tone selection is achieved through six programming inputs and two control inputs (which allow either a logic
鈥?鈥?or 鈥?鈥?to enable the device). A low distortion sinewave is generated at the TX Tone Output when the
MX315A is enabled. The emitter follower output stage can source 1mW directly into a 600 load (0dBm).
The MX315A is available in the following package styles: 16-pin SOIC (MX315ADW), 14-pin PDIP
(MX315AP) and 14-pin CDIP (MX315AJ).

1998 MXCOM, INC.
www.mxcom.com
tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480054.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All Trademarks and service marks are held by there respective companies.

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