73K212AL TDK [TDK Electronics], 73K212AL Datasheet

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73K212AL

Manufacturer Part Number
73K212AL
Description
V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid
Manufacturer
TDK [TDK Electronics]
Datasheet
DESCRIPTION
The 73K222BL is a highly integrated single-chip
modem IC which provides the functions needed to
construct a CCITT V.22, V.21, Bell 212A and Bell
103, compatible modem, capable of 1200 bit/s full-
duplex operation over dial-up lines. The 73K222BL
is an enhancement of the 73K222AL single-chip
modem which adds the hybrid hook switch control,
and driver to the 73K222AL. In Bell 212A mode, the
73K222BL provides the normal Bell 212A and Bell
103 functions and employs a 2225 Hz answer tone.
The 73K222BL in V.22 mode produces either 550 or
1800 Hz guard tone, recognizes and generates a
2100 Hz answer tone, and allows 600 bit/s V.22 or
0-300 bit/s V.21 operation. The device integrates
analog,
functions on a single substrate, offering excellent
performance
integration in a 32-Lead PLCC and 44-Lead TQFP
package. It operates from a single +5 V supply.
The 73K222BL includes the DPSK and FSK
modulator/demodulator functions, call progress and
handshake tone monitor and a tone generator
capable of tones required for European applications.
This device supports V.22 (except mode v) and V. 21
modes of operation, allowing both synchronous and
asynchronous communication. Test features such as
analog loop, digital loop, and remote digital loopback
are supported. Internal pattern generators are also
included for self-testing.
BLOCK DIAGRAM
RESET
digital,
TXD
RXD
ALE
WR
INT
RD
CS
and
AD0-AD7
and
a
high
switched-capacitor
level
CONTROL
CONTROL
STATUS
BUFFER
WRITE
LOGIC
LOGIC
READ
DATA
AND
BUS
of
V.22, V.21, Bell 212A, Bell 103 Single-Chip
CONTROL
functional
STATUS
SERIAL
(continued)
PORT
8-BIT
DATA
BUS
FOR
AND
FOR
array
PROCESSING
PATTERNS
GENERATOR
DIGITAL
ALB, DLB
TESTS:
RDLB
CLOCK
FEATURES
Modem with Integrated Hybrid
Includes features of 73K222AL single-chip
modem
One-chip CCITT V.22, V.21, Bell 212A and Bell
103 standard compatible modem data pump
Full-duplex operation at 0-300 bit/s (FSK) or
600 and 1200 bit/s (DPSK)
On chip 2-wire/4-wire hybrid driver and off-
hook relay buffer driver
Serial or parallel microcontroller control
interface
Interfaces
microcontroller (8048, 80C51 typical)
Serial port for data transfer
Both synchronous and asynchronous modes
of
overspeed
Call progress, carrier, precise answer tone
(2100 or 2225 Hz), and long loop detectors
DTMF, and 550 or 1800 Hz guard tone
generators
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 @ 5 V
Single +5 V supply
DEMODULATOR
DEMODULATOR
POWER
MODULATOR/
MODULATOR/
FUNCTIONS
DIALING
SMART
DETECT
operation
PSK
FSK
&
directly
GENERATORS
TRANSMIT
RECEIVE
DTMF &
FILTER
FILTER
TONE
including
with
HYBRID
2W/4W
73K222BL
V.22
OH
TXA1
TXA2
RXA
April 2000
extended
standard

Related parts for 73K212AL

73K212AL Summary of contents

Page 1

DESCRIPTION The 73K222BL is a highly integrated single-chip modem IC which provides the functions needed to construct a CCITT V.22, V.21, Bell 212A and Bell 103, compatible modem, capable of 1200 bit/s full- duplex operation over dial-up lines. The 73K222BL ...

Page 2

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid DESCRIPTION (continued) The 73K222BL is designed to appear to the systems designer as a microprocessor peripheral, and will easily interface with microprocessors (80C51 typical) for control of modem functions ...

Page 3

Serial data from the demodulator is passed first through the data descrambler and then through the SYNC/ASYNC converter. The converter will re-insert any deleted stop bits and transmit output data at an intra-character rate (bit-to- bit timing greater ...

Page 4

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid FUNCTIONAL DESCRIPTION PARALLEL BUS INTERFACE Four 8-bit registers are provided for control, option select and status monitoring. These registers are addressed with the AD0, AD1, and AD2 multiplexed address ...

Page 5

PIN DESCRIPTION POWER NAME PIN TYPE GND 1 VDD 16 VREF 31 ISET 28 PARALLEL CONTROL INTERFACE ALE 13 AD0-AD7 5-12 I/O Tristate CS 23 CLK 2 O INT RESET 30 I/with Pulldown V.22, V.21, Bell 212A, ...

Page 6

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid PARALLEL CONTROL INTERFACE NAME PIN TYPE WR 14 SERIAL CONTROL INTERFACE NAME PIN TYPE AD0-AD2 5-7 DATA (AD7 NOTE: The serial control mode ...

Page 7

DTE USER NAME PIN TYPE EXCLK 22 RXCLK 26 RXD 25 O/ Weak Pull-up TXCLK 21 TXD 24 ANALOG INTERFACE AND OSCILLATOR NAME PIN TYPE RXA 32 TXA1 18 TXA2 17 XTL1 3 XTL2 V.22, V.21, Bell ...

Page 8

... RXD PIN 0 = NORMAL 1 = WEAK PULL- 110 1 REGISTER 00XX = 73K212AL, 322L, 321L X = Undefined, mask in software 01XX = 73K221AL, 302L 10XX = 73K222AL, 222BL 1100 = 73K224L, 224BL 1110 = 73K324L, 324BL NOTE: When a register containing reserved control bits is written into, the reserved bits must be programmed as 0's. ...

Page 9

CONTROL REGISTER CR0 MODUL. 0 TRANSMIT 000 OPTION MODE 3 BIT NO. NAME D0 Answer/ Originate D1 Transmit Enable D5, D4, D3, D2 Transmit Mode D6 V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid ...

Page 10

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid CONTROL REGISTER 0 (continued CR0 MODUL. 0 TRANSMIT 000 OPTION BIT NO. NAME D7 Modulation Option CONTROL REGISTER CR1 TRANSMIT TRANSMIT 001 PATTERN PATTERN ...

Page 11

CONTROL REGISTER 1 (continued CR1 TRANSMIT TRANSMIT 001 PATTERN PATTERN 1 0 BIT NO. NAME D4 Bypass Scrambler D5 Enable Detect D7, D6 Transmit Pattern DETECT REGISTER RECEIVE 010 BIT NO. NAME D0 ...

Page 12

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid DETECT REGISTER (continued RECEIVE 010 BIT NO. NAME D2 Answer Tone Detect D3 Carrier Detect D4 Unscrambled Mark Detect D5 ReceiveData D6, D7 Not ...

Page 13

TONE REGISTER (continued RXD TRANSMIT 011 OUTPUT GUARD CONTR. TONE BIT NO. NAME D3, D2, DTMF D1 Transmit DTMF D5 Transmit Answer Tone V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem ...

Page 14

... RXD. 1 Disables RXD pin. The RXD pin reverts to a high impedance with internal weak pull-up resistor CONDITION DESCRIPTION Indicates device type 73K212AL, 73K321L or 73K322L 73K221AL or 73K302L 73K222AL, 73K222BL 73K224AL ...

Page 15

ELECTRICAL SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PARAMETER VDD Supply Voltage Storage Temperature Reflow Soldering Temperature (10 sec.)/VPS (10 sec.) Applied Voltage NOTE: All inputs and outputs are protected from static charge using built-in, industry standard protection devices and all outputs are ...

Page 16

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid DC ELECTRICAL CHARACTERISTICS (TA = -40° 85° C, VDD = recommended range unless otherwise noted.) PARAMETER IDD, SUPPLY CURRENT IDDA, Active IDD1, Power-down IDD2, Power-down DIGITAL INPUTS ...

Page 17

ELECTRICAL SPECIFICATIONS DYNAMIC CHARACTERISTICS AND TIMING (TA = -40°C to +85°C, VDD = recommended range unless otherwise noted.) PARAMETER DPSK MODULATOR Carrier Suppression Output Amplitude FSK MODULATOR/DEMODULATOR Output Frequency Error Transmit Level Harmonic Distortion in 700-2900 Hz band Output Bias ...

Page 18

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid DYNAMIC CHARACTERISTICS AND TIMING PARAMETER CARRIER DETECT Threshold Delay Time Hysteresis Hold Time ANSWER TONE DETECTOR Detect Level Delay Time Hold Time Detect Frequency Range OUTPUT SMOOTHING FILTER Output ...

Page 19

DYNAMIC CHARACTERISTICS AND TIMING PARAMETER GUARD TONE GENERATOR Tone Accuracy Tone Level (Below DPSK Output) Harmonic Distortion 700 to 2900 Hz TIMING (Refer to Timing Diagrams) TAL TLA ADD TLC TCL TRD TLL TRDF TRW TWW TDW TWD TCKD TCKW ...

Page 20

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid TIMING DIAGRAMS TLL ALE RD WR TAL ADDRESS AD0-AD7 CS EXCLK RD TAC TCA ADDRESS A0-A2 TRD D0 DATA FIGURE 3: Read Timing Diagram (Serial Version) EXCLK WR A0-A2 ...

Page 21

APPLICATIONS INFORMATION GENERAL CONSIDERATIONS Figure 5 shows the basic circuit diagram for a 73K222BL modem integrated circuit designed to be used in conjunction with a control processor, a UART or RS-232 serial data interface, and a DAA phone line interface ...

Page 22

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid APPLICATIONS INFORMATION DIRECT ACCESS ARRANGEMENT (DAA) The DAA (Direct Access Arrangement) required for the 73K222BL consists of an impedance matching resistor, telecom coupling transformer, and ring detection and fault ...

Page 23

To avoid problems, power supply and ground traces should be routed separately to the analog and digital functions on the board, and digital signals should not be routed near low level or high impedance analog traces. The analog and digital ...

Page 24

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid APPLICATIONS INFORMATION * 73K222BL BER vs SIGNALTO NOISE 10 -2 HIGH BAND RECEIVE DPSK OPERATION -3 10 600 BPS 3002 FLAT - ...

Page 25

MECHANICAL SPECIFICATIONS 32-Pin PLCC 0.453 (11.51) 0.449 (11.40) PIN NO. 1 IDENT. 0.595 (15.11) 0.585 (14.86) 0.495 (12.57) 0.485 (12.32) 44-Lead TQFP 0.09 (0.035) 1.35 (0.053) 0.20 (0.008) 1.45 (0.057) V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated ...

Page 26

V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid PACKAGE PIN DESIGNATIONS (Top View AD0 5 AD1 6 AD2 7 AD3 8 AD4 9 AD5 10 AD6 11 DATA/AD7 12 ALE ...

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