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| 型号： | PTRF1221IRGZR |
| 厂商： | Texas Instruments |
| 文件页数： | 1/31页 |
| 文件大小： | 0K |
| 描述： | PTRF1221IRGZR |
| 产品培训模块： | RFID Technology and Applications |
| 标准包装： | 2,500 |
| 功能： | 升频器 |
| 频率： | 1.7GHz ~ 3.6GHz |
| RF 型： | UHF |
| 封装/外壳： | 48-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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TRF1121
www.ti.com
TRF1221
SLWS170B – APRIL 2005 – REVISED JANUARY 2008
Dual VCO/PLL Synthesizer With IF Upconverter
1
FEATURES
The TRF1121 and TRF1221 are designed to function
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Low Phase Noise
Image Reject Upconverter
Dual VCO/PLL For Double Upconversion
Architecture
On-Chip VCO, Resonator, and PLL Only;
Requires Off-Chip Loop Filter
External S-Band VCO Option
5-Bit Transmit Level Control, 32 dB in 1-dB
Steps
S-Band LO Frequency Range:
– TRF1121: 1500 to 2500 MHz
– TRF1221: 1700 to 3600 MHz
UHF LO Frequency Range: 250 MHz to
350 MHz
Input Frequency Range: 10 MHz to 70 MHz
S-Band LO Phase Noise Typical 0.5 ° rms (100
Hz to 1 MHz)
Output Power Range From –32 dBm to 0 dBm
in 1-dB Steps (500-mVpp Differential Input)
as part of complete 2.5-GHz and 3.5-GHz radio
chipsets, respectively. In the chipset, the transmit
chain operates as a double upconverter from an IF
frequency input (typically from a baseband modem's
DAC) to an RF output frequency. The TRF1121/
TRF1221 performs the first upconversion from IF
signals in the range of 10 MHz to 60 MHz to a
second IF frequency in the range of 300 MHz to
360 MHz. The radio chipset features sufficient
linearity, phase noise, and dynamic range to work in
either single carrier or multicarrier, line-of-sight or
non-line-of-sight, standard (IEEE 802.16), or
proprietary systems. Due to the modular nature of the
chipset, it is ideal for use in systems that employ
transmit or receive diversity.
LPCC?48 PACKAGE
(TOP VIEW)
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Minimum UHF LO Step Size of 50 kHz for
TRF1121 and 62.5 kHz for TRF1221
Image Rejection: –50 dBc, Typical (20–40 MHz
Tx IF Input)
LO Leakage: –36 dBm, Typical
Third-Order IMD: < –60 dBc at Maximum Gain
CP2O
LD2
LF2
DATA
CLK
VCCD2
FR
VCCD1
FRBP
1
2
3
4
5
6
7
8
9
36
35
34
33
32
31
30
29
28
EXTLO2IP
EXTLO2IN
TXON
IFOP
VCCIF
IFON
GND
GND
GAIN[4]
DESCRIPTION
EN
LF1
10
11
27
26
GAIN[3]
GAIN[2]
The
TRF1121
and
TRF1221
are
VHF-UHF
LD1
12
25
GAIN[1]
upconverters with
integrated
UHF
and
S-band
frequency synthesizers for radio applications in the
2-GHz to 4-GHz range. The IC performs the first
upconversion and generates the local oscillator (LO)
for the second upconversion. The device uniquely
integrates an image reject mixer, IF gain blocks, 5-bit
gain control, and two complete phase-locked-loop
(PLL) circuits including: VCOs, resonator circuit,
varactors, dividers, and phase detectors.
1
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright ? 2005–2008, Texas Instruments Incorporated
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