TA31142 datasheet(3/6 Pages) UTC

номер детали	TA31142

подробное описание детали	LINEAR INTEGRATED CIRCUIT

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UTCTA31142

LINEAR INTEGRATED CIRCUIT

UTC UNISONIC TECHNOLOGIES CO., LTD.

3

QW-R103-015,A

ELECTRICAL CHARACTERISTICS(Ta=25

°C, Vcc=1.4V,Vss=0V, BS=high unless otherwise noted)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Quiescent current consumption

Icc,total

1.1

1.6

mA

Standby current consumption

Icc,modby

VBS=0V

5

µA

Mixer conversion gain

Gc

Measured after 455 KHz

ceramic filter

9

12.5

16

dB

Mixer output intermodulation

intercept point

OIP3

-10

dBm

Mixer input resistance

Rin,MIX

5

k

Ω

Mixer output resistance

Rout,MIX

2

k

Ω

IF amplifier input resistance

Rin,IF

2

k

Ω

S/N ratio I

SNI

-53 dBm at MIXIN

63

dB

S/N ratio 2

SN2

-53 dBm at IFIN

63

dB

S/N ratio 3

SN3

-91 dBm at IFIN

25

dB

Demodulation output level

VOD

-53 dBm at IF|N

45

mVrms

AM rejection ratio

AMR

-53 dBm at IFIN AM=30%

50

dB

FSK output duty ratio

DR

40

50

60

%

Low battery alarm threshold

voltage

VALM

1.05

1.1

1.15

V

Regulator output voltage

VREGOUT

430

Ω load resistor

0.95

1.0

1.05

V

Charging / discharging current

ICH

VFSKREF=0V, VLPFOUT=0.18V

35

70

110

µA

ALM logic HIGH output current

IOH,ALM

2

µA

ALM logic LOW output voltage

IOL,ALM

0.4

V

FSKOUT logic HIGH output

current

IOH.FSK.OUT

2

µA

FSKOUT logic LOW output

vlotage

VOL,PSK,

OUT

0.4

V

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