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參數資料
| 型號： | MC145443B |
| 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 |
| 文件大小： | 111K |
| 代理商： | MC145443B |
MC145442B
MC145443B
MOTOROLA
1
The MC145442B and MC145443B silicon–gate CMOS single–chip low–
speed modems contain a complete frequency shift keying (FSK) modulator,
demodulator, and filter. These devices are compatible with CCITT V.21
(MC145442B) and Bell 103 (MC145443B) 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.
MC145442B Compatible with CCITT V.21
MC145443B 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 MC145442B/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
MC145442BP
MC145443BP
MC145442BDW
MC145443BDW
Plastic DIP
Plastic DIP
SOG Package
SOG Package
REV 1
9/00
相關PDF資料 |
PDF描述 |
|---|---|
| MC145442BP | Single-Chip 300-Baud Modem |
| MC145443BDW | Single-Chip 300-Baud Modem |
| MC145443BP | Single-Chip 300-Baud Modem |
| MC145442DW | Single-Chip 300-Baud Modem |
| MC145442 | 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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