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參數資料
| 型號： | MC145443 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Single-Chip 300-Baud Modem |
| 中文描述： | 單芯片300波特調制解調器 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 224K |
| 代理商： | MC145443 |
MC145442
MC145443
MOTOROLA
1
The MC145442 and MC145443 silicon–gate CMOS single–chip low–speed
modems contain a complete frequency shift keying (FSK) modulator, demodu-
lator, and filter. These devices are with CCITT V.21 (MC145442) and Bell 103
(MC145443) specifications. Both devices provide full–duplex or half–duplex
300–baud data communication over a pair of telephone lines. They also include
a carrier detect circuit for the demodulator section and a duplexer circuit for
direct operation on a telephone line through a simple transformer.
MC145442 Compatible with CCITT V.21
MC145443 Compatible with Bell 103
Low–Band and High–Band Band–Pass Filters On–Chip
Simplex, Half–Duplex, and Full–Duplex Operation
Originate and Answer Mode
Analog Loopback Configuration for Self Test
Hybrid Network Function On–Chip
Carrier Detect Circuit On–Chip
Adjustable Transmit Level and CD Delay Timing
On–Chip Crystal Oscillator (3.579 MHz)
Single + 5 V Power Supply Operation
Internal Mid–Supply Generator
Power–Down Mode
Pin Compatible with MM74HC943
Capable of Driving – 9 dBm into a 600
Load
Order this document
by MC145442/D
SEMICONDUCTOR TECHNICAL DATA
PIN ASSIGNMENT
P SUFFIX
PLASTIC DIP
CASE 738
DW SUFFIX
SOG PACKAGE
CASE 751D
20
1
20
1
VDD
CDT
CD
LB
DSI
FB
Xin
Xout
CDA
RxD
5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
RxA1
TxA
Exl
VAG
TLA
TxD
VSS
MODE
SQT
RxA2
ORDERING INFORMATION
MC145442P
MC145443P
MC145442DW
MC145443DW
Plastic DIP
Plastic DIP
SOG Package
SOG Package
REV 1
8/95
相關PDF資料 |
PDF描述 |
|---|---|
| MC145442P | Single-Chip 300-Baud Modem |
| MC145443DW | Single-Chip 300-Baud Modem |
| MC145443P | Single-Chip 300-Baud Modem |
| MC145444DW | Single-Chip 300-Baud Modem |
| MC14544 | Single-Chip 300-Baud Modem |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC145443P | 制造商:Motorola Inc 功能描述: |
| 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: |
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