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31142のメーカーはUnisonic Technologiesです、この部品の機能は「TA31142」です。 |
部品番号 | 31142 |
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部品説明 | TA31142 | ||
メーカ | Unisonic Technologies | ||
ロゴ | |||
このページの下部にプレビューと31142ダウンロード(pdfファイル)リンクがあります。 Total 6 pages
www.DataSheet4U.com
UTCTA31142 LINEAR INTEGRATED CIRCUIT
LOW POWER IF RECEIVER IC
DESCRIPTION
The UTC TA31142 is a low power IF receiver IC
and is suitable for use as the second IF
downconverter in double-conversion paging systems.
It is well-suited for POCSAG paging applications and
incorporates a 2-level FSK demodulator consisting of
a quadrature FM demodulator, on-chip bit-rate filter,
and 1-bit comparator. An on-chip 1V regulator is
provided for convenient biasing of off-chip circuitry.
FEATURES
*Extremely low power operation with power-down
feature
*Built-in crystal oscillator for mixer local oscillator
*Mixer input frequency: 10-50 MHz
*Quadrature detector
*On-chip bit-rate filter
*Audio output
*1-bit comparator with open collector output
*1V regulator
*1.1V low battery alarm
TSSOP-20
PIN CONFIGURATIONS
OSCIN 1
OSCOUT 2
MIXOUT 3
VCC 4
IFIN 5
DEC 6
FSKREF 7
IFOUT 8
QUAD 9
AFOUT 10
11 LPFIN
12 LPFOUT
13 BS
14 CHARGE
15 FSKOUT
16 ALM
17 REGCON
18 REGOUT
19 VSS
20 MIXIN
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R103-015,A
1 Page www.DataSheet4U.com
UTCTA31142 LINEAR INTEGRATED CIRCUIT
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
9 12.5 16
dB
ceramic filter
Mixer output intermodulation
OIP3
-10 dBm
intercept point
Mixer input resistance
Rin,MIX
5 kΩ
Mixer output resistance
Rout,MIX
2 kΩ
IF amplifier input resistance
Rin,IF
2 kΩ
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
VALM
1.05 1.1 1.15
V
voltage
Regulator output voltage
VREGOUT
430Ω 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
VOL,PSK,
0.4 V
vlotage
OUT
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R103-015,A
3Pages www.DataSheet4U.com
UTCTA31142 LINEAR INTEGRATED CIRCUIT
TEST CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 6
QW-R103-015,A
6 Page | |||
ページ | 合計 : 6 ページ | ||
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PDF ダウンロード | [ 31142 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
31142 | TA31142 | Unisonic Technologies |
311491 | 311491 xx | RIA Electonic |