Product Description
The Sirenza Microdevices’ STQ-2016 is a direct quadrature
modulator targeted for use in a wide range of communica-
tions systems, including cellular/PCS, CDMA2000, UMTS,
and ISM datacom. This device features a wide 700-2500 MHz
operating frequency band, excellent carrier and sideband
suppression, and a low broadband noise floor.
The STQ-2016 uses silicon germanium (SiGe) device tech-
nology and delivers a typical output power of -11dBm 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 STQ-2016Z is packaged in a RoHs compliant
and Green 16-pin TSSOP with matte tin finish.
STQ-2016
STQ-2016Z
Pb
RoHS Compliant
&
Green
Package
700-2500 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)
Product Features
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
•
•
•
•
•
•
Excellent carrier feedthrough, -40 dBm con-
stant with output power
Output P1dB +3dBm
Wide baseband input, DC - 500 MHz
Superb phase accuracy and amplitude bal-
ance, ±0.5 deg./±0.2 dB
Very low noise floor, -155 dBm/Hz
Low LO drive requirement, -5 dBm
Cellular/PCS/CDMA2000/UMTS transceivers
ISM band transceivers, 900 & 2400 MHz
GMSK, QPSK, QAM, SSB modulators
Units
MHz
Min.
700
-13.0
-10.5
20
+3
+4
-40
34
58
40
62
-154
-2
-0.2
+4.75
±0.5
±0.05
+5
73
25
-152
+2
+0.2
+5.25
86
-2
-0.2
+4.75
-34
34
58
0
Typ.
Max.
1000
-9.0
Min.
1700
-15.0
-11.5
16
+3
-40
40
65
-155
±0.5
±0.05
+5
73
25
-153
+2
+0.2
+5.25
86
-32
Typ.
Max.
2500
-9.0
LO
QUADRATURE
GENERATOR
Applications
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
baseband 200kHz @ 600mVp-p differential
matched to 50Ω
(refer to schematics on pages 6 & 7)
(I/Q inputs = 3.74 Vp-p differential typical)
Test Conditions (see page 2)
•
•
•
dBm
dB
dBm
dBm
dB
two-tone baseband input @ 600mVp-p differen-
tial per tone
baseband inputs tied to 1.9V
DC
, -20MHz offset
from carrier
dB
dBm/Hz
deg
dB
V
mA
ºC/W
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions.
Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without
notice. 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 Sirenza Microdevices product
for use in life-support devices and/or systems.
Copyright 2001 Sirenza Microdevices, Inc. All worldwide rights reserved.
303 South Technology Court Broomfield, CO 80021
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-102083 Rev F
SIRENZA [ SIRENZA MICRODEVICES ]
