參數(shù)資料
型號： TLC32040MFK
廠商： Texas Instruments, Inc.
英文描述： ANALOG INTERFACE CIRCUIT
中文描述： 模擬接口電路
文件頁數(shù)： 1/30頁
文件大小： 202K
代理商： TLC32040MFK
SGLS031 – MAY 1990
TLC32040M
ANALOG INTERFACE CIRCUIT
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1990, Texas Instruments Incorporated
4–1
PRODUCTION DATA information is current as of publication date.
standard warranty. Production processing does not necessarily include
testing of all parameters.
Advanced LinCMOS
Silicon-Gate Process
Technology
14-Bit Dynamic Range ADC and DAC
Variable ADC and DAC Sampling Rate up to
19200 Samples Per Second
Switched-Capacitor Antialiasing Input Filter
and Output-Reconstruction Filter
Serial Port for Direct Interface to
SMJ320E14, SMJ32020, SMJ320C25, and
SMJ320C30 Digital Processors
Synchronous or Asynchronous ADC and
DAC Conversion Rates With Programmable
Incremental ADC and DAC Conversion
Timing Adjustments
Serial Port Interface to SN54299
Serial-to-Parallel Shift Register for Parallel
Interface to SMJ320C10, SMJ320C15,
SMJ320E15, or Other Digital Processors
description
The TLC32040M interface circuit is a complete
analog-to-digital and digital-to-analog input/
output system on a single monolithic CMOS
chip. This device integrates a band-pass
switched-capacitor antialiasing input filter, a
14-bit-resolution
A/D
microprocessor-compatible serial port modes, a
14-bit-resolution D/A converter, and a low-pass
switched-capacitor output reconstruction filter.
The device offers numerous combinations of
master clock input frequencies and conversion/
sampling rates, which can be changed via digital
processor control.
converter,
four
Typical applications for this integrated circuit
include modems (7.2-, 8-, 9.6-, 14.4-, and
19.2-kHz sampling rate), analog interface for
digital signal processors (DSPs), speech recognition/storage systems, industrial process control, biomedical
instrumentation, acoustical signal processing, spectral analysis, data acquisition, and instrumentation
recorders. Four serial modes, which allow direct interface to the SMJ320E14, SMJ32020, SMJ320C25, and
SMJ320C30 digital signal processors, are provided. Also, when the transmit and receive sections of the analog
interface circuit (AIC) are operating synchronously, it will interface to two SN54299 serial-to-parallel shift
registers.These serial-to-parallel shift registers can then interface in parallel to the SMJ320C10, SMJ320C15,
SMJ320E15, other digital signal processors, or external FIFO circuitry. Output data pulses are emitted to inform
the processor that data transmission is complete or to allow the DSP to differentiate between two transmitted
bytes. A flexible control scheme is provided so that the functions of the integrated circuit can be selected and
adjusted coincidentally with signal processing via software control.
Advanced LinCMOS is a trademark of Texas Instruments Incorporated.
FK PACKAGE
(TOP VIEW)
R
N
NU–Nonusable; no external connection should be made to
these pins.
3 2 1 28 27
12 13
5
6
7
8
9
10
11
25
24
23
22
21
20
19
IN–
AUX IN+
AUX IN–
OUT+
OUT–
V
CC+
V
CC–
DR
MSTR CLK
V
DD
REF
DGTL GND
SHIFT CLK
EODX
4
26
14 15 16 1718
D
W
F
N
N
A
A
N
N
I
E
F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
NU
RESET
EODR
FSR
DR
MSTR CLK
V
DD
REF
DGTL GND
SHIFT CLK
EODX
DX
WORD/BYTE
FSX
NU
NU
IN+
IN–
AUX IN+
AUX IN–
OUT+
OUT–
V
CC+
V
CC–
ANLG GND
ANLG GND
NU
NU
J PACKAGE
(TOP VIEW)
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