TriQuint Semiconductor Inc TQ5631 Datasheet
WIRELESS COMMUNICATIONS DIVISION
GND
GND
IF
out
GIC
RF
IN
VDD
VDD
LO
IN
Product Description
The TQ5631 is a 3V, RFAmplifier/Mixer IC designed specifically for PCS band CDMA
applications. It’s RF performance meets the requirements of products designed to
the IS-95 standards. The TQ5631 is designed to be used with the TQ3631 (CDMA
LNA) which provides a complete CDMA receiver for 1900MHz phones.
TQ5631
DATA SHEET
3V PCS Band CDMA
RFA/Mixer IC
Features
Small size: SOT23-8
Single 3V operation
Low-current operation
Gain Select
High IP3 performance
Few external components
The RFA/Mixer incorporates on-chip switches which determine gain select states.
When used with the TQ3631 (CDMA LNA), four gain steps are available. The RF
input port is internally matched to 50
the number of external components to a minimum. The TQ5631 achieves good RF
performance with low current consumption, supporting long standby times in portable
applications. Coupled with the very small SOT23-8 package, the part is ideally suited
for PCS band mobile phones.
Electrical Specifications
Parameter Min Typ Max Units
Frequency 1960 MHz
Gain 15.0 dB
Noise Figure 5.7 dB
Input 3rd Order Intercept 1.0 dBm
DC supply Current 20.0 mA
Note 1: Test Conditions: Vdd=2.8V , RF=1960MHz , LO=1750MHz, IF=210MHz, Ta=25C,
1
LO input –4dBm, CDMA High Gain state.
Ω
, greatly simplifying the design and keeping
Applications
IS-95 CDMA Mobile Phones
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TQ5631
Data Sheet
Electrical Characteristics
Parameter Conditions Min. Typ/Nom Max. Units
RF Frequency PCS band 1800 1960 2200 MHz
IF Frequency 100 210 300 MHz
LO Frequency 1600 1750 2300 MHz
CDMA Mode-High Gain
Gain 12.2 15.0 dB
Noise Figure 5.7 6.8 dB
Input IP3 -1.0 1.0 dBm
Supply Current 20.0 25.5 mA
CDMA Mode-High Gain Low Linearity
Gain 17.0 21.0 dB
Noise Figure 5.3 dB
Input IP3 -3.0 dBm
Supply Current 20.0 mA
CDMA Mode-Mid Gain
Gain 1.0 3.0 dB
Noise Figure 12.0 dB
Input IP3 18.0 dBm
Supply Current 15.0 mA
CDMA Mode-Low Gain
Gain 6.2 8.0 dB
Noise Figure 10.0 dB
Input IP3 13.5 dBm
Supply Current 15.0 mA
Supply Voltage 2.7 2.8 2.9 V
Note 1: Test Conditions: Vdd=2.8V , RF=1960MHz , LO=1750MHz, IF=210MHz, TC = 25° C, LO input –4dBm, unless otherwise specified.
°
Note 2: Min/Max limits are at +25
C case temperature, unless otherwise specified.
Absolute Maximum Ratings
Parameter Value Units
DC Power Supply 5.0 V
Power Dissipation 500 mW
Operating Temperature -30 to 85 C
Storage Temperature -60 to 150 C
Signal level on inputs/outputs +20 dBm
Voltage to any non supply pin +0.3 V
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TQ5631
Data Sheet
Typical Performance, Note:HG=High Gain, LL=High Gain Low Linearity, LG=Low Gain
Test Conditions, unless otherwise spec ified: Vdd=2.8V, Ta=25C, RF=1960MHz, LO=1750MHz , IF=210MHz, LO input=-4dBm ,
Conversion Gain vs. Freq.
25.00
20.00
15.00
10.00
Gain (dB)
5.00
0.00
LG Mode
HG Mode
LL Mode
1930 1940 1950 1960 1970 1980 1990
Freq. (MHz)
21.00
20.00
19.00
18.00
17.00
IDD (mA)
16.00
15.00
14.00
13.00
1930 1940 1950 1960 1970 1980 1990
IDD vs. Freq.
Freq. (MHz)
LG Mode
HG Mode
LL Mode
IIP3 vs. Freq.
16.00
11.00
6.00
IIP3 (dBm)
1.00
-4.00
1930 1940 1950 1960 1970 1980 1990
Freq. (MHz)
Noise Figure vs. Freq.
11.00
10.00
9.00
8.00
7.00
NF (dB)
6.00
5.00
4.00
1920 1940 1960 1980 2000
Freq. (MHz)
LG Mode
HG Mode
LL Mode
LG Mode
HG Mode
LL Mode
Conversion Gain vs. Temp.
25.00
20.00
15.00
10.00
Gain (dB)
5.00
LG Mode
HG Mode
LL Mode
0.00
-30-150 153045607590
Temp. (C)
IIP3 vs. Temp.
15.00
13.00
11.00
9.00
7.00
5.00
3.00
IIP3 (dBm)
LG Mode
HG Mode
LL Mode
1.00
-1.00
-3.00
-5.00
-30-150 153045607590
Temp. (C)
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TQ5631
Data Sheet
Noise Figure vs. Temp.
12.00
11.00
10.00
9.00
8.00
7.00
NF (dB)
6.00
5.00
4.00
3.00
LG Mode
HG Mode
LL Mode
2.00
-30-150153045607590
Temp. (C)
IDD vs. Temp.
24.00
22.00
20.00
18.00
IDD (mA)
16.00
LG Mode
HG Mode
LL Mode
14.00
12.00
-30-150 153045607590
Temp. (C)
IIP3 vs. LO Power
20.00
15.00
10.00
5.00
IIP3 (dBm)
0.00
-5.00
-7 -5 -3 -1
LO Power (dBm)
Noise Figure vs. LO Power
10.00
9.00
8.00
7.00
NF (dB)
6.00
5.00
4.00
-7 -5 -3 -1
LO Power (dBm)
LG Mode
HG Mode
LL Mode
LG Mode
HG Mode
LL Mode
Conversion Gain vs. LO Power
25.00
20.00
15.00
Gain (dB)
10.00
5.00
LG Mode
HG Mode
LL Mode
0.00
-7 -5 -3 -1
LO Power (dBm)
23.00
21.00
19.00
17.00
IDD (mA)
15.00
13.00
-7 -5 -3 -1
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IDD vs. LO Power
LG Mode
HG Mode
LL Mode
LO Power (dBm)
TQ5631
Data Sheet
Conversion Gain vs. VDD
23.00
21.00
19.00
17.00
15.00
Gain (dB)
13.00
11.00
9.00
7.00
2.7 2.8 2.9 3 3.1 3.2
VDD (V)
IIP3 vs. VDD
16.00
14.00
12.00
10.00
8.00
6.00
IIP3 (dB)
4.00
2.00
0.00
-2.00
-4.00
2.7 2.8 2.9 3 3.1 3.2
VDD (V)
LG Mode
HG Mode
LL Mode
LG Mode
HG Mode
LL Mode
IDD vs. VDD
24.00
22.00
20.00
18.00
IDD (mA)
16.00
14.00
12.00
2.7 2.8 2.9 3 3.1 3.2
VDD (V)
LG Mode
HG Mode
LL Mode
Noise Figure vs. VDD
10.00
9.00
8.00
7.00
NF (dB)
6.00
5.00
4.00
2.6 2.7 2.8 2.9 3 3.1 3.2 3.3
VDD (V)
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LG Mode
HG Mode
LL Mode
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