参数资料
型号: PTRF1221IRGZR
厂商: Texas Instruments
文件页数: 10/31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)
TRF1121
TRF1221
SLWS170B – APRIL 2005 – REVISED JANUARY 2008
www.ti.com
TRANSMIT LEVEL CONTROL
The TRF1121 and TRF1221 offer 32 dB of gain control through a five-wire parallel bus. When driven with a
500-mVpp differential baseband IF signal, the transmit level can be programmed between –32 dBm and 0 dBm
in 1-dB steps.
Figure 5 shows the output power, two-tone imtermodulation level, LO leakage, and gain deviation from ideal vs
gain state, while Figure 6 shows the upconverter gain variation vs temperature.
0
?10
V in =500mVpp diff
T=25 o C
1
?20
?30
?40
Pout
Gain Deviation
from ideal
0
?1
?50
LO1 Leakage
at IF2 port
?60
?70
?80
IMD Level with two input tones at 250 mVpp diff. each
?2
?3
30 28
RC1x21 Po, P LO , IM3 (G)
26
24
22
20
18
16 14
Gain State
12
10
8
6
4
2
0
Figure 5. Output Power, LO Leakage and IMD Level vs Gain State
10
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Copyright ? 2005–2008, Texas Instruments Incorporated
Product Folder Link(s): TRF1121 TRF1221
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