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參數(shù)資料
| 型號： | UAA3535 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Low power GSM/DCS/PCS multi-band transceiver |
| 中文描述： | 低功耗的GSM / DCS / PCS的多波段收發(fā)器 |
| 文件頁數(shù)： | 5/24頁 |
| 文件大?。?/td> | 118K |
| 代理商： | UAA3535 |
2000 Feb 17
5
Philips Semiconductors
Objective specification
Low power GSM/DCS/PCS multi-band transceiver
UAA3535HL
handbook, full pagewidth
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UAA3535HL
FCA068
IFCIA
IFCIB
IFCQA
IFCQB
RFLOIB
RFLOIA
RFLOGND
SYNGND
VCC(SYN)
VCC(RFCP)
SYNON
VCC(RFLO)
E
R
T
R
D
D
G
G
R
V
T
R
TXCPO
VCC(TXCP)
TXIFA
IFGND1
TSTO
VCC1(IF)
IB
QA
RXON
TXON
IA
QB
V
I
D
V
I
R
R
R
I
I
C
E
Fig.2 Pin configuration.
FUNCTIONAL DESCRIPTION
RF receiver
The receiver front-end converts the aerial RF signal from
EGSM (Extended GSM; 925 to 960 MHz), DCS
(1805 to 1880 MHz) or PCS (1930 to 1990 MHz) bands
down to an IF signal of 100 kHz. The first stages are
symmetrical LNAs that are matched to 50
using external
baluns. The LNAs are followed by an I/Q down-mixer.
The I/Q down-mixer consists of two mixers in parallel but
driven by quadrature out of phase LO signals.
The In-phase (I)andQuadrature-phase (Q)IF signalsare
then low-pass filtered to provide protection from high
frequency offset interferers. The IF I and Q signals are
then fed into the channel filter.
Channel filter and AGC
The front-end IF I and Q outputs are first applied to an
amplifier circuit with provision for three 8 dB gain step
adjustment possibilities and then to an integrated
band-pass channel filter. The filter is a fifth-order
band-pass filter centred around 100 with 220 kHz
bandwidth. After filtering the IF I and Q signals are further
amplified with provision for eleven 4 dB gain steps and
DC offset compensation.
I/Q modulator
I and Q baseband signals are applied to the I/Q modulator
where the modulation spectrum is shifted up to the
transmit IF frequency. For low harmonic distortion, low
carrier leakage and high image rejection, the phase error
must be kept as small as possible. The IF output of the
modulator is fed to an integrated low-pass filter where
unwanted spurious signals are suppressed, prior to being
fed to the phase detector.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UAA3535HL | Low power GSM/DCS/PCS multi-band transceiver |
| UAA3540 | DECT receiver |
| UAA3540TS | DECT receiver |
| UAA3545HL | Fully integrated DECT transceiver |
| UAA3545 | Fully integrated DECT transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UAA3535HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low power GSM/DCS/PCS multi-band transceiver |
| UAA3537LHN/C1,518 | 制造商:NXP Semiconductors 功能描述:PHAUAA3537LHN/C1.518 RF XCVR EOL300609 |
| UAA3540 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DECT receiver |
| UAA3540TS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DECT receiver |
| UAA3545 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Fully integrated DECT transceiver |
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