73K321L-IH datasheet, PDF - EEWORLD Datasheet

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73K321L-IH: DescriptionCCITT V.23, V.21 Single-Chip Modem; CategoryWireless rf/communication Telecom circuit; File Size135KB，24 Pages; ManufacturerTDK Corporation; Websitehttp://www.tdk.com

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73K321L-IH Overview

CCITT V.23, V.21 Single-Chip Modem

73K321L-IH Parametric

Parameter Name	Attribute value
Maker	TDK Corporation
Parts packaging code	QLCC
package instruction	PLASTIC, LCC-28
Contacts	28
Reach Compliance Code	unknow
Other features	HALF DUPLEX; FULL DUPLEX
data rate	1.2 Mbps
JESD-30 code	S-PQCC-J28
length	11.5062 mm
Number of functions	1
Number of terminals	28
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	QCCJ
Package shape	SQUARE
Package form	CHIP CARRIER
Certification status	Not Qualified
Maximum seat height	4.572 mm
Maximum slew rate	12 mA
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Telecom integrated circuit types	MODEM
Temperature level	INDUSTRIAL
Terminal form	J BEND
Terminal pitch	1.27 mm
Terminal location	QUAD
width	11.5062 mm

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73K321L

CCITT V.23, V.21

Single-Chip Modem

April 2000

DESCRIPTION

The 73K321L is a highly integrated single-chip

modem IC which provides the functions needed to

construct a CCITT V.23 and V.21 compatible

modem, capable of 0-300 bit/s full-duplex or 0-1200

bit/s half-duplex operation over dial-up telephone

lines. The 73K321L provides 1200 bit/s operation in

V.23 mode and 300 bit/s in V.21 mode. The

73K321L also can both detect and generate the

2100 Hz answer tone needed for call initiation. The

73K321L integrates analog, digital, and switched-

capacitor array functions on a single substrate,

offering excellent performance and a high level of

functional integration in a single 28-pin DIP or PLCC

package. The 73K321L operates from a single +5V

supply with very low power consumption.

The

73K321L

includes

the

FSK

modulator/demodulator functions, call progress and

handshake tone monitor test modes, and a tone

generator capable of producing DTMF, answer,

calling tones. The 73K321L is designed to appear to

the systems designer as a microprocessor

peripheral, and will easily interface with popular one-

chip microprocessors (80C51 typical) for control of

modem functions through its 8-bit multiplexed

address/data bus or via an optional serial control

bus. An ALE control line simplifies address

demultiplexing.

Data

communications

occurs

through a separate serial port only.

(continued)

FEATURES

•

One-chip CCITT V.23 and V.21 standard

compatible modem data pump

Full-duplex operation at 0-300 bit/s (V.21) or

0-1200 bit/s ( .23) forward channel with or

without 0-75 bits/s back channel

Full Duplex 0-1200 bit/s (V.23) in 4-wire mode

Pin and software compatible with other TDK

Semiconductor Corporation K-Series 1-chip

modems

Interfaces directly with standard

processors (8048, 80C51 typical)

Serial port for data transfer

Call progress, carrier, precise answer tone

(2100 Hz), calling tone (1300 Hz) and FSK

mark detectors

DTMF generator

Test modes available: ALB, DL, RDL, Mark,

Space, Alternating bit patterns

Precise automatic gain control allows 45 dB

dynamic range

CMOS

technology

for

low

power

consumption using 60 mW @ 5V from a

single power supply

micro-

•

BLOCK DIAGRAM

DATA

BUS

BUFFER

DTMF &

TONE

GENERATORS

AD0-AD7

8-BIT

BUS

FOR

FSK

MODULATOR/

DEMODULATOR

ALE

RESET

READ

WRITE

CONTROL

LOGIC

CONTROL

AND

STATUS

TRANSMIT

FILTER

RECEIVE

FILTER

TXA

RXA

INT

STATUS

AND

CONTROL

LOGIC

TXD

RXD

SERIAL

PORT

FOR

DATA

TESTS:

ALB,DLB

RDLB

PATTERNS

SMART

DIALING

DETECT

FUNCTIONS

CLOCK

GENERATOR

POWER

RXCLK

TXCLK

CLK

EXCLK

GND

XTL1

XTL2

VREF

VDD

ISET

73K321L-IH Related Products

	73K321L-IH	73K321L-IP
Description	CCITT V.23, V.21 Single-Chip Modem	CCITT V.23, V.21 Single-Chip Modem
Parts packaging code	QLCC	DIP
package instruction	PLASTIC, LCC-28	DIP,
Contacts	28	28
Reach Compliance Code	unknow	unknow
Other features	HALF DUPLEX; FULL DUPLEX	HALF DUPLEX; FULL DUPLEX
data rate	1.2 Mbps	1.2 Mbps
JESD-30 code	S-PQCC-J28	R-PDIP-T28
length	11.5062 mm	35.941 mm
Number of functions	1	1
Number of terminals	28	28
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	QCCJ	DIP
Package shape	SQUARE	RECTANGULAR
Package form	CHIP CARRIER	IN-LINE
Certification status	Not Qualified	Not Qualified
Maximum seat height	4.572 mm	5.588 mm
Maximum slew rate	12 mA	12 mA
Nominal supply voltage	5 V	5 V
surface mount	YES	NO
technology	CMOS	CMOS
Telecom integrated circuit types	MODEM	MODEM
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal form	J BEND	THROUGH-HOLE
Terminal pitch	1.27 mm	2.54 mm
Terminal location	QUAD	DUAL
width	11.5062 mm	15.24 mm

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