The Sirenza Microdevices STQ-2016-3 is a direct quadrature
modulator targeted for use in W-CDMA applications. This
device features a 700-2500 MHz operating frequency band,
excellent carrier and sideband suppression, and a low broad-
band noise floor.
The STQ-2016-3 uses silicon germanium (SiGe) device
technology and delivers a typical channel power of -11 dBm
with adjacent channel power less than -65 dBc. A digital
input shut-down feature is included that, when enabled,
attenuates the output by 60 dB. The device is packaged in an
industry standard 16 pin TSSOP with exposed paddle for
superb RF and thermal ground. The STQ-2016-3Z is pack-
aged in a RoHs compliant and Green 16-pin TSSOP with
matte tin finish.
STQ-2016-3
STQ-2016-3Z
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
•
•
•
•
•
•
•
Min.
-13
Typ.
-11
0.25
-65
-75
-75
-157
79
81
Excellent carrier feedthrough, -40 dBm constant
with output power
+4.0 dBm output P1dB
Wide baseband input, DC - 500 MHz
Superb phase accuracy and amplitude balance,
±0.5 deg./±0.2 dB
Very low noise floor, -157 dBm/Hz
Low ACP, -65 dBc
LO
QUADRATURE
GENERATOR
Applications
W-CDMA Transmitters
1930-1990 MHz
Min.
-14.5
Typ.
-12.5
0.25
-65
-73
-73
-157
77
79
Max.
-10.5
0.5
-63
-68
-68
-156
76
2110-2170 MHz
Min.
-15
Typ.
-13
0.25
-65
-73
-73
-156
78
Max.
-11
0.5
-63
-68
-68
-155
Type*
E
C,D
E
C,D
C,D
C,D
C,D
Product Specifications – W-CDMA Modulation
(See Table 1 for Test Conditions)
869-894 MHz
Parameters
Channel Power
Power Flatness
Adjacent Channel Power
First Alternate Channel
Power
Second Alternate Channel
Power
Broadband Noise Floor
Signal-to-Noise Ratio
60 MHz offset from
carrier
Noise Offset: 60 MHz,
Measured in a 3.84 MHz
bandwidth
Comments
Guaranteed through
Output Power test as
specified on Page 2
Range across fre-
quency band
Guaranteed through
IM3 test as specified
on Page 2
Unit
dBm
dB
dBc
dBc
dBc
dBm/Hz
dB
Max.
-9
0.5
-63
-68
-68
-156
*Type Definition: A = 100% tested (see Table 2 for conditions), B = Sample tested, C = Characterized on samples over temperature
and Vcc, D = Design parameter, E = 100% tested through correlated CW parameter, I = Device input specification.
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.
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