Product Description
The Sirenza Microdevices’ STQ-1016 is a direct quadrature modulator targeted for
use in a wide range of communications systems, including cellular/PCS, GSM,
CDMA, TETRA, and ISM datacom. This device features a wide 250 - 1000 MHz
operating frequency band, excellent carrier and sideband suppression, and a low
broadband noise floor.
The STQ-1016 uses silicon germanium (SiGe) device technology and delivers a
typical output power of -9 dBm with greater than 60dB IM3 suppression. A digital
input shut-down feature is included that, when enabled, attenuates the output by
60dB. The device is packaged in an industry standard 16 pin TSSOP with
exposed paddle for superb RF and thermal ground.
The matte tin finish on Sirenza’s lead-free package utilizes a post annealing
process to mitigate tin whisker formation and is RoHS compliant per EU directive
2002/95. This package is also manufactured with green molding compounds that
contain no antimony trioxide nor halogenated fire retardants.
STQ-1016
STQ-1016Z
Pb
RoHS Compliant
&
Green
Package
250 - 1000 MHz
Direct Quadrature Modulator
16 pin TSSOP with Exposed Ground Pad
Package Footprint: 0.197 x 0.252 inches, (5.0 x 6.4 mm)
Package Height: 0.039 inches (1.0 mm)
Functional Block Diagram
BBQP
VCC
VEE
LOP
LON
VEE
SD
BBIP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
BBQN
VCC
VEE
RFP
RFN
VEE
VCC
BBIN
Product Features
•
•
•
•
•
•
•
•
•
•
LO
QUADRATURE
GENERATOR
Available in Lead Free, RoHS compliant, and
Green packaging
Excellent carrier feedthrough, -38 dBm constant
over output power
Output P1dB +5dBm
Very low noise floor, -154 dBm/Hz typical
Wide baseband input, DC - 500 MHz
Superb phase accuracy and amplitude balance,
±0.5 deg./±0.2 dB
Low LO drive requirement, -5 dBm
Applications
Cellular/PCS/GSM/CDMA transceivers
TETRA
GMSK, QPSK, QAM, SSB modulators
Units
MHz
Min.
250
-12.0
-9
>10, 250 to 1000 MHz
>15, 275 to 500 MHz
+3
+6
-38
34
58
42
62
-154
-2
-0.2
+4.75
±0.5
±0.05
+5
80
25
*Guaranteed by design
-150*
+2
+0.2
+5.25
86
-30
Typ.
Max.
1000
-7
Product Specifications – RF Output: T
A
= 25ºC
Parameters
RF Frequency Range
Output Power
RF Port Return Loss
Output P1dB
Carrier Feedthrough
Sideband Suppression
IM3 Suppression
Broadband Noise Floor
Quadrature Phase Error
I/Q Amplitude Balance
Supply Voltage (Vcc)
Supply Current
Device Thermal Resistance junction-case
2-tone BB input @ 600mVp-p diff. per tone, 20kHz spacing
baseband inputs tied to 1.9V
DC
, -20MHz offset from carrier
(baseband input level 600 mVp-p differential)
matched to 50Ω using schematic shown on page 5
(baseband input level 3.8Vp-p differential typical)
Test Conditions (see page 2)
dBm
dB
dBm
dBm
dB
dB
dBm/Hz
deg
dB
V
mA
ºC/W
Performance tests and ratings for Sirenza Microdevices' products were performed internally by Sirenza and measured using specific computer systems and/or components and reflect the approximate performance of the products as measured by
those tests. Any difference in circuit implementation, test software, or test equipment may affect actual performance. The information provided herein is believed to be reliable at press time and Sirenza Microdevices assumes no responsibility for
the use of this information. All such use shall be entirely at the user's own risk. Prices and specifications for Sirenza Microdevices' products are subject to change without notice. Buyers should consult Sirenza Microdevices' standard terms and
conditions of sale for Sirenza's limited warranty with regard to its products. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any product
for use in life-support devices and/or systems. Copyright 2004 Sirenza Microdevices, Inc. All worldwide rights reserved.
303 South Technology Court
Broomfield, CO 80021
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-102531 Rev C
SIRENZA [ SIRENZA MICRODEVICES ]
