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TRF1122IRTMTG3 Datasheet(PDF) 4 Page - Texas Instruments

Part # TRF1122IRTMTG3
Description  2.5-GHz Integrated Up-Converter
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TRF1122IRTMTG3 Datasheet(HTML) 4 Page - Texas Instruments

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TRF1122
SLWS173B – APRIL 2005 – REVISED SEPTEMBER 2006
TERMINAL FUNCTIONS
TERMINAL
I/O
TYPE
DESCRIPTION
NO.
NAME
Not connected for normal operation. Amplifier Bias Adjustment. Do not ground this pin or
1
IADJ
connect to any other pin.
2
VDD2
I
Power
RF amplifier bias +5 V
3, 5, 9, 11,
15, 16, 21,
GND
Ground
28–30, 32
4
UCATTN
I
Digital
Logic high is high gain, Logic low reduces gain by 16 dB. Normally set high.
6
RFO
O
Analog
RF output from RF amplifier
Not connected for normal operation. LO common gate bias adjustment. Do not ground this
7
LOADJ1
pin or connect to any other pin.
Negative bias used for enable circuitry -5 V. This pin can be grounded if the user does not
8
VNEG
I
Power
use the UCEN pin to turnoff the amplifier. If the VNEG is grounded the UCEN pin should be
tied high.
Not connected for normal operation. LO amplifier bias adjustment. Do not ground this pin or
10
LOADJ2
connect to any other pin.
12
LOP
I
Analog
LO input, Positive, Internally ac coupled
13
LON
I
Analog
LO input, Negative, Internally ac coupled.
14
VDDLO
I
Power
Positive power for LO amplifier, +5 V.
17
VDDIFN
I
Analog
VDD supply for IF amplifier, negative, +5 V
18
VDDIFP
I
Analog
VDD supply for IF amplifier, positive, +5 V
19
IFIP
I
Analog
IF input, positive, dc coupled, Typical dc voltage is 1.2 V.
20
IFIN
I
Analog
IF input, negative, dc coupled Typical dc voltage is 1.2 V.
22
MXRO
O
Analog
Output of mixer (after balun) 50
Ω impedance with high impedance DC ground.
23
UCEN
Digital
Set HIGH to enable IF amplifier and RF amplifiers
24
MXRADJ
I
Analog
Normally grounded. Provide 0
Ω jumper to ground.
Not connected for normal operation. IF amplifier bias adjustment. Do not ground this pin or
25
IFADJ
I
connect to any other pin.
26
VDDIF
I
Power
Positive supply for IF bias circuitry +5 V
27
RFI
I
Analog
Input to RF amplifier, 50
Ω impedance, Internally AC coupled
31
VDDI
I
Power
RF amplifier bias +5 V
Back
GND
Back of package has metal base that must be grounded for thermal and RF performance.
4
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