TGC4408-SM
18 - 20 GHz Block Downconverter
Applications
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VSAT Ground Terminal
Millimeter wave Communications
4408
1217
1087
32-pin 5x6mm QFN package
Product Features
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Functional Block Diagram
32
31
30
29
28
27
26
GND
RF IN
GND
1
2
3
4
Lo Buffer
Vd_down_converter
5
6
7
8
9
Low Band VCO
High Band
VCO
Prescalar
÷4
LNA
Subharmonic Mixer
25
24
23
22
21
20
19
18
17
Divider_output+
Divider_output-
GND
IF OUT
GND
Vcc_prescalar
Vswitch_high
Vswitch_low
Vcc_VCO
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
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
Vswitch_low
Vswitch_high
Vcc_VCO
Vcc_prescaler
V_tune
Divider_output+ (LO/4)
Divider_output- (LO/4)
IF OUT
N/C
Ordering Information
Part No.
TGC4408-SM
ECCN
EAR99
Description
18 to 20 GHz Block
Downconverter
Standard T/R size = 500 pieces on a 13” reel
Preliminary Data Sheet: Rev - 6/11/12
© 2012 TriQuint Semiconductor, Inc.
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Disclaimer: Subject to change without notice
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