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參數(shù)資料
| 型號： | 73K322L-IP |
| 廠商： | TDK Corporation |
| 英文描述： | CCITT V.23, V.22, V.21 Single-Chip Modem |
| 中文描述： | 國際電話電報諮詢委員會.23，.22，.21單芯片調制解調器 |
| 文件頁數(shù)： | 24/30頁 |
| 文件大?。?/td> | 288K |
| 代理商： | 73K322L-IP |
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73K322L
CCITT V.23, V.22, V.21
Single-Chip Modem
24
APPLICATIONS INFORMATION
GENERAL CONSIDERATIONS
Figures 1 and 2 show basic circuit diagrams for
K-Series modem integrated circuits. K-Series
products are designed to be used in conjunction with
a control processor, a UART or RS-232 serial data
interface, and a DAA phone line interface to function
as a typical intelligent modem. The K-Series ICs
interface directly with Intel 8048 and 80C51
microprocessors for control and status monitoring
purposes. Two typical DAA arrangements are
shown: one for a split ±5 or ±12 volt design and one
for a single 5 volt design. These diagrams are for
reference only and do not represent production-
ready modem designs.
K-Series devices are available with two control
interface versions: one for a parallel multiplexed
address/data interface, and one for a serial
interface. The parallel version is intended for use
with 8039/48 or 8031/51 microcontrollers from Intel
or many other manufacturers. The serial interface
can be used with other microcontrollers or in
applications where only a limited number of port
lines are available or the application does not lend
itself to a multiplexed address/data interface. The
parallel versions may also be used in the Serial
mode, as explained in the data sheet pin description.
In most applications the controller will monitor the
serial data for commands from the DTE and the
received data for break signals from the far end
modem. In this way, commands to the modem are
sent over the same line as the transmitted data. In
other applications the RS-232 interface handshake
lines are used for modem control.
FIGURE 1: Basic Box Modem with Dual-Supply Hybrid
RS232
LEVEL
CONVERTERS
CA
CB
CC
CD
CF
RTS
CTS
DSR
DTR
DCD
P1.0
P1.1
P1.2
P1.3
P1.5
P1.6
P1.7
P3.0
RESET
TXD
RXD
EXCLK
RXCLK
TXCLK
BA
BB
DA
DD
DB
U5, U6
MC145406
RD
WR
ALE
P3.1
P3.2
P0.0-7
INT
XTL2
XTL1
N/C
80C51
XTL1
INT
XTL2
ISET
GND
RD
WR
ALE
CS
VREF
RXA
CLK
VDD
Y1
11.0592
MHZ
C14
39 pF
C13
18 pF
R10
2.2M
+5V
C10
0.1 μF
C11
0.1 μF
C9
0.1 μF
C8
22 μF
+
RESET
C12
1 μF
+5V
TXA
C6
0.1 μF
RXA
LM 1458
-
+
R5
37.4K
C1
390 pF
R4
5.1K
R4
20K
C7
0.1 μF
TXA
R6
20K
475 1%
C5
0.47 μF
250V
D1
IN4004
R8
22K
T1
MIDCOM
671-8005
VR1
MOV
V250L20
T
R
U2
4N35
+5V
K1
D2
IN914
2N2222A
Q1
R9
10K
U1A
R3
3.6K
C3
1000 pF
V+
R7
43.2K
C2
300 pF
LM 1458
U1B
V–
C4
0.033 μF
R1
D3, D4
4.7V
ZENER
SSI
K-SERIES
LOW POWER
FAMILY
22K
+5
相關PDF資料 |
PDF描述 |
|---|---|
| 73K322L | CCITT V.23, V.22, V.21 Single-Chip Modem(CCITT V.23, V.22, V.21單片Modem) |
| 73M223 | 1200 Baud FSK Modem |
| 73M223-CL | 1200 Baud FSK Modem |
| 73M223-CP | 1200 Baud FSK Modem |
| 73M2901CL | V.22 BIS SINGLE CHIP MODEM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 73K324BL | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Chip Modem w/ Integrated Hybrid |
| 73K324BL-IGT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Modem w/Integrated Hybrid |
| 73K324BL-IH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Modem w/Integrated Hybrid |
| 73K324BL-IH/F | 功能描述:電信集成電路 Single Chip Modem w/Integrated Hybrid RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| 73K324BL-IHR/F | 功能描述:電信集成電路 Single Chip Modem w/Integrated Hybrid RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
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