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參數(shù)資料
| 型號(hào)： | MC145446 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Single-Chip 300-Baud Modem with DTMF Transceiver |
| 中文描述： | 單芯片300波特調(diào)制解調(diào)器的雙音多頻收發(fā)器 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 264K |
| 代理商： | MC145446 |
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MC145446A
MOTOROLA
1
Product Preview
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The MC145446A is a silicon gate CMOS frequency shift keying (FSK)
modem intended for use with telemeter systems or remote control systems over
the telephone network. It replaces the MC145446.
This device is compatible with CCITT V.21 and contains the entire circuit that
provides a full–duplex or half–duplex 300–baud data communication over a pair
of telephone lines. This device also includes the DTMF generator/receiver and
call progress tone detector (CPTD).
The differential line driver has the capability of driving 0 dBm into a 600
load
with a single 5 V power supply. The transmit level is controlled by the
programmable attenuator in 1 dB steps.
This device also includes a serial control interface and internal control and
status registers that permit a CPU to exercise the following built–in features:
Single 5 V Power Supply
Compatible with CCITT V.21
DTMF Generator and Receiver for All 16 Standard Digits
Capable of Driving 0 dBm into a 600
Load (VCC = 5 V)
AGC (Auto Gain Control) Amplifier for DTMF Receiver
Imprecise Call Progress Tone (400 Hz) Detector
A Transmit Attenuator Programmable in 1 dB Steps
2100 Hz Answer Tone Generator
Serial Control Interface
Analog Loopback Configuration for Self Test
Power–Down Mode, Less than 1
μ
A
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Order this document
by MC145446A/D
SEMICONDUCTOR TECHNICAL DATA
FW SUFFIX
SOP
CASE 751M
28
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5
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2
1
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FTLC2
CDA
Vref
GND
VCC
TLA
FTLC3
DTMF IN
R/W
VCC
GND
AGC OUT
X1
X2
TxA1
RxA
RxGC
RxBO
FTLC1
RxD
TxD
DATA I/O
SD/CD/DV
E
DSI
TxA2
SCK
VCC
PIN ASSIGNMENT
ORDERING INFORMATION
MC145446AFW
SOP
REV 1
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC145447DW | Calling Line Identification(CLID) Receiver with Ring Detector |
| MC145447 | Calling Line Identification(CLID) Receiver with Ring Detector |
| MC145447P | Calling Line Identification(CLID) Receiver with Ring Detector |
| MC14544BCL | BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals |
| MC14544BCP | BCD-to-Seven Segment Latch/Decoder/Driver for Liquid Crystals |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC145446AFW | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC145447DW | 制造商:Motorola Inc 功能描述:CALLER NUMBER ID CIRCUIT, 16 Pin, Plastic, SOP |
| MC145447DWR2 | 制造商:Motorola Inc 功能描述:TELEPHONE MULTIFUNCTION CKT, 16 Pin Plastic SOP |
| MC145447P | 制造商:Motorola Inc 功能描述: |
| MC145475DW | 制造商:Motorola Inc 功能描述:DATACOM, ISDN CONTROLLER, PDSO28 |
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