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TGC4408-SM_15 Datasheet, PDF (1/20 Pages) TriQuint Semiconductor – 18 - 20 GHz Block Downconverter
Applications
 VSAT Ground Terminal
 Millimeter wave Communications
Product Features
 RF Frequency: 18.3 to 20.2 GHz
 Internal dual band LO Sources

7.9 to 9.1 GHz and 9.9 to 11.1 GHz
 IF Frequency: 950 to 1950 MHz
 Conversion Gain: 8.5 dB
 Single Side Band Noise Figure: 6.5 dB
 Input IP3: -8 dBm
 Differential ÷4 VCO output for use by external
PLL
 Single +5V supply operation
 Bias 5.0 V, 305 mA
 Package Dimensions: 5.0 x 6.0 x 0.85mm
TGC4408-SM
18 - 20 GHz Block Downconverter
4408
1307
0490
32-pin 5x6mm QFN package
Functional Block Diagram
32 31 30 29 28 27 26
GND
1
RF IN
2
GND
3
4
Vd_down_converter 5
6
7
8
9
LNA Subharmonic Mixer
Lo Buffer
Prescalar
÷4
Low Band VCO
High Band
VCO
25 GND
24 IF OUT
23 GND
22
21 Divider_output-
20
19
18 Divider_output+
17
10 11 12 13 14 15 16
General Description
The TriQuint TGC4408-SM is a low cost Ku band
downconverter. It provides in a single package a
dual band VCO, a subharmonic mixer, and all the
associated gain stages required to integrate the
VCO and the mixer.
The TGC4408-SM provides a differential signal at
1/4th the VCO frequency for use in a phase-locked
loop.
The subharmonic mixer is manufactured using
TriQuint’s pHEMT process; the VCO and the
prescaler are manufactured using TriQuint’s HBT
process.
The TGC4408-SM is available as a single surface
mount 32 lead 5x6 QFN package and is ideally
suited for VSAT ground terminals and millimeter
wave communication receivers.
Lead-free and RoHS compliant.
Evaluation Boards are available upon request.
Pin Configuration
Pin #
1,3,23,25
2
5
10
11
12
13
14
18
21
24
4,6,7,8,9,15,16,17,19
20,22,26 thru 32
thru 32
Function Label
GND
RF IN
Vd_down_converter
Vs witch_low
Vs witch_high
Vcc_VCO
Vcc_pres caler
V_tune
Divider_output+ (LO/4)
Divider_output- (LO/4)
IF OUT
N/C
Ordering Information
Part No. ECCN Description
TGC4408-SM EAR99
18 to 20 GHzBlock
Downconverter
Standard T/R size = 500 pieces on a 13” reel
PreliminaryData Sheet: Rev A 4/1/13
© 2013 TriQuint
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Disclaimer: Subject to change without notice
www.triquint.com