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參數(shù)資料
| 型號： | UAA2077 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2 GHz image rejecting front-end |
| 中文描述： | 2 GHz的形象拒絕前端 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 140K |
| 代理商： | UAA2077 |
1995 Dec 13
5
Philips Semiconductors
Product specification
2 GHz image rejecting front-end
UAA2077BM
FUNCTIONAL DESCRIPTION
Receive section
The circuit contains a low-noise amplifier followed by two
high dynamic range mixers. These mixers are of the
Gilbert-cell type, the whole internal architecture is fully
differential.
The local oscillator, shifted in phase to 45
°
and 135
°
,
mixes the amplified RF to create I and Q channels.
The two I and Q channels are buffered, phase shifted by
45
°
and 135
°
respectively, amplified and recombined
internally to realize the image rejection.
Balanced signal interfaces are used for minimizing
crosstalk due to package parasitics.
The IF output is differential and of the open-collector type.
Typical application will load the output with a differential
1 k
load; for example, a 1 k
resistor load at each IF
output, plus a differential 2 k
load consisting of the input
impedance of the IF filter or the input impedance of the
matching network for the IF filter. The power gain refers to
the available power on this 2 k
load. The path to V
CC
for
the DC current should be achieved via tuning inductors.
The output voltage is limited to V
CC
+ 3V
be
or 3 diode
forward voltage drops.
Fast switching, ON/OFF, of the receive section is
controlled by the hardware input RXON.
Fig.3 Block diagram, receive section.
handbook, full pagewidth
MGD157
LNA
IF
COMBINER
IF
amplifier
IF
amplifier
MIXER
MIXER
RXON
LOIN
IFA
IFB
RFINA
RFINB
LNAGND
VCCLNA
+
45
o
+
135
o
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| UAA2077AM | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Image rejecting front-end for DECT applications |
| UAA2077BM | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 GHz image rejecting front-end |
| UAA2077CM | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 GHz image rejecting front-end |
| UAA2077TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 GHz image rejecting front-end |
| UAA2077TS/D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2 GHz image rejecting front-end |
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