TQ5635 查看數據表（PDF） - TriQuint Semiconductor
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TQ5635 Datasheet PDF : 25 Pages
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Package Pinout:
TQ5635
Data Sheet
1
GND
RF In
GND
LNA
Bias
GND/LNA
Gain
GND/LNA
Gain
LNA Out
Mixer
Vdd
LNA
active
bias
Active
Bias
MXR In
Mixer
IF Amp
LO Buffer
GND
LO
Vdd
LO
In
LNA Vdd
GND
IF Out
GIC
Pin Descriptions:
Pin #
1
2
Pin Name
GND
LNA IN
3
GND
4
LNA BIAS
5
LNA VDD
6
GND
7
IF OUT
8
IF BIAS
9
LO IN
10
LO TUNE
11
GND
12
MXR IN
13
MXR Vdd
14
15, 16
LNA OUT
LNA SOURCE
Paddle
GND
Description and Usage
Ground connection. Connect as closely as possible to ground or to package paddle ground.
LNA RF input (DC blocked internally). An external match is required which can be chosen for a gain/NF
trade-off.
Ground connection. Connect as closely as possible to ground or to package paddle ground.
An external resistor is connected between this pin and Vdd in order to set the LNA bias current. A value of
~ 2.5 KOhm will give an LNA IDD of ~ 7 mA.
LNA supply voltage. An external decoupling/bypass network should be used.
Ground connection. Connect as closely as possible to ground or to package paddle ground.
Mixer IF output (~ 500 Ohm, open drain). Connection to Vdd required. External matching required.
IF amp FET source. An RF by -passed resistor is placed form this pin to ground in order to set the current in
this stage.
Mixer LO input (DC blocked internally). Internally matched to ~ 50 Ohms.
Mixer LO buffer supply voltage. An external bypass capacitor required. An external series inductor is
required for peaking LO gain.
Ground connection. Connect as closely as possible to ground or to package paddle ground.
Mixer RF input (DC blocked internally). An external matching network is recommended to optimized
cascaded IIP3
Supply voltage for the internal bias circuit that sets IF amp current (in conjunction with the external IF BIAS
resistor).
LNA RF output. It is DC blocked and internally matched to better than 2:1.
The source node of the cascade LNA section. A hard ground provides maximum gain and minimum IIP3. A
small amount of external inductance will reduce gain and improve IIP3.
Ground connection. It is very important to place multiple via holes under the paddle. Provides RF
grounding for the part.
22
For additional information and latest specifications, see our website: www.triquint.com
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