Datasheet > TLV5590_08

TLV5590_08

更新时间： 2022-10-12 16:27:43

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德州仪器 - TI		/
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描述
2-BIT ANALOG-TO-DIGITAL CONVERTER FOR FLEX

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TLV5590_08 数据手册

TLV5590

2-BIT ANALOG-TO-DIGITAL CONVERTER

FOR FLEX PAGER CHIPSET

SLAS134B – NOVEMBER 1995 – REVISED NOVEMBER 1996

Supports FLEX Protocol Pagers With The

TLV5591 FLEX Decoder

Four Modes of Operation:

– Fast Acquisition

– Slow Acquisition

– Hold Acquisition

– Standby

3-Pole Butterworth Low-Pass Selectable

Dual-Bandwidth Audio Filter

– BW 1 = 1 kHz ±5% (– 3 dB)

– BW 2 = 2 kHz ±5% (– 3 dB)

2.7-V to 3.3-V Single Power Supply

Operation

Both Peak and Valley Detectors Available

2-Bit Analog-to-Digital Converter

applications

Operating Temperature Range . . . –25°C to 85°C

FLEX Protocol Numeric and

Alphanumeric Pagers

One-Way or Two-Way

description

D PACKAGE

(TOP VIEW)

The TLV5590 analog-to-digital converter is a

system level solution to interface a 4-level

baseband audio signal to a digital decoder. The

CLK

TEST

†

TLV5590 is a direct interface to the TLV5591BVF

SIG

DC OFFSET

MID

TRACKINH

EXTS0

EXTS1

CON2

FLEX decoder. Designed primarily for pager

applications, the TLV5590 incorporates signal

conditioning, both peak andvalleydetectionalong

with analog-to-digital conversion. A selectable

third-order Butterworth filter with cutoff

frequencies of 1 kHz and 2 kHz is included. The

GND

CON1

peak and valley detectors are implemented with a unique design that does not require external capacitors. Two

8-bit digital-to-analog converters (DACs) are used in a feedback loop to automatically adjust to the peak and

valley levels. The DAC outputs are used to set V

and V

for the 2-bit analog-to-digital converter (ADC).

ref+

ref–

Modes of operation include fast track, slow track, hold, and standby. The standby mode maximizes battery life.

The TLV5590 operates on a single supply down to 2.7 V.

AVAILABLE OPTIONS

PACKAGE

SMALL OUTLINE

(D)

–25°C to 85°C

TLV5590ED

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

FLEX is a trademark of Motorola, Incorporated.

†

TLV5591BVF Data Manual Literature Number – SLWS048

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...16

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