TQC9312_15 Datasheet, PDF (3/9 Pages) TriQuint Semiconductor – 3.3 – 3.8 GHz W Digital Variable Gain Amplifier

TQC9312
3.3 – 3.8 GHz ½ W Digital Variable Gain Amplifier
TQC9312-PCB Evaluation Board
J1
J1
J3
U1
C1
C2
J2
J2
C8
0.1uF
J1
C1
0Ω
RF
Input
SPI_LE
SPI_DATA
SPI_CLK
NC
GND
RF_IN
GND
U1
6X6_ 28PIN
GND
GND
GND
GND
GND
C2
J2
RF_OUT
0Ω
RF
GND
Output
J1
J2
FB1
FB2
0Ω
0Ω
R1
0Ω
C4
J5
10 uF
+5V
Notes:
1. See Evaluation Board PCB Information section for material and stack-up.
2. All Components are of 0603 size unless stated otherwise.
3. See Serial Control Interface section for SPI Timing Diagram.
4. 0 Ω jumpers may be replaced with copper traces in the target application layout.
5. Different ground pins are used for SPI (digital) and analog supply voltages.
6. The primary RF microstrip characteristic line impedance is 50 Ω.
7. The single power supply is used to provide supply voltage to AMP1, AMP2 and AMP3.
Bill of Material −TQC9312-PCB
Reference Des.
U1
C8
C4
C1, C2, FB1, FB2
Value
0.1 uF
10 uF
0Ω
Description
3.5 GHz ½ W DVGA
Cap, Chip, 0603, 16V, X7R, 10%
Cap, Chip, 0603, 6.3V, X5R, 20%
Res, Chip, 0603, 1/16W, 5%
Manufacturer
TriQuint
various
various
various
Part Number
TQC9312
Typical Performance − TQC9312-PCB
Test conditions unless otherwise noted: VCC=+5 V, ICC = 285mA, Temp=25°C, 50 Ω system, Maximum Gain State
Parameter
Typical Value
Frequency
3300 3400 3500 3600 3700 3800
Gain
40.1
40
39.8 40.3 40.7 41.3
Input Return Loss
17
17.8
15
12.6 12.6
14
Output Return Loss
17
17.5 17.4 17.4 15.6 14.8
Output P1dB
+28.3 +28.2 +27.8 +27.5 +27.1 +26.7
Output IP3 (Pout=+11 dBm/tone, ∆f =1 MHz) +43.4 +43.4 +44.5 +44
+46
+44
Units
GHz
dB
dB
dB
dBm
dBm
© 2014 TriQuint
Datasheet: Rev C 12-04-1 - 3 of 9 -
Disclaimer: Subject to change without notice
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