TQ3631 LNA IC Datasheet

TQ3631 Datasheet, PDF, Equivalent


Part Number

TQ3631

Description

3V PCS Band CDMA LNA IC

Manufacture

TriQuint Semiconductor

Total Page 10 Pages
Datasheet
Download TQ3631 Datasheet


TQ3631
WIRELESS COMMUNICATIONS DIVISION
Control
Logic C2
GND
C2
L1
VDD
GND
TQ3631
DATA SHEET
3V PCS Band CDMA
LNA IC
RF RF 50 ohm
IN OUT RF Out
LNA
gnd
C3
Control
Logic
Product Description
The TQ3631 is a 3V, RF LNA IC designed specifically for PCS band CDMA
applications. It’s RF performance meets the requirements of products designed to
the IS-95 specifications. The TQ3631 is designed to be used with the TQ5631
(CDMA mixer) which provides a complete CDMA receiver for 1900MHz phones.
The LNA incorporates on-chip switches which determine high, low and bypass mode
select. When used with the TQ5631 (CDMA RFA/mixer), four gain steps are
available for use which provide low current/high IP3 and gain. The RF output port is
internally matched to 50 , greatly simplifying the design and minimizing the number
of external components. The TQ3631 achieves excellent RF performance with low
current consumption, supporting long standby and talk times in portable applications.
Coupled with the very small SOT23-8 package, the part is ideally suited for PCS
band mobile phones.
Electrical Specifications1
Features
Small size: SOT23-8
Single 3V operation
Low-current operation
Gain Select
High IP3 performance
Few external components
Applications
IS-95 CDMA PCS Mobile Phones
Parameter
Frequency
Min Typ Max
1960
Gain 13.0
Noise Figure
1.5
Input 3rd Order Intercept
10.0
DC supply Current
11.0
Note 1: Test Conditions: Vdd=2.8V, RF=1960MHz, Tc=25C, CDMA High Gain state.
Units
MHz
dB
dB
dBm
mA
For additional information and latest specifications, see our website: www.triquint.com
1

TQ3631
TQ3631
Data Sheet
Electrical Characteristics
Parameter
Conditions
RF Frequency
PCS band
CDMA Mode-High Gain
Gain
Noise Figure
Input IP3
Input Return Loss (with external matching)
Output Return Loss
Supply Current
CDMA Mode-High Gain-Low Linearity
Gain
Noise Figure
Input IP3
Input Return Loss (with external matching)
Output Return Loss
Supply Current
Bypass Mode
Gain
Noise Figure
Input IP3
Input Return Loss (with external matching)
Output Return Loss
Supply Current
Supply Voltage
Note 1: Test Conditions: Vdd=2.8V, RF=1960MHz, TC = 25° C, unless otherwise specified.
Note 2: Min/Max limits are at +25°C case temperature, unless otherwise specified.
Min.
1810
12.0
7.0
10
10
10.0
2.0
10
10
-2.5
10
10
2.7
Typ/Nom
1960
13.0
1.5
10.0
11.0
11.5
1.6
5.0
4.5
-1.5
2.0
30.0
1.0
2.8
Max.
1990
2.2
13.0
2.8
5.5
2.8
2.0
3.3
Units
MHz
dB
dB
dBm
dB
dB
mA
dB
dB
dBm
dB
dB
mA
dB
dB
dBm
dB
dB
mA
V
Absolute Maximum Ratings
Parameter
DC Power Supply
Power Dissipation
Operating Temperature
Storage Temperature
Signal level on inputs/outputs
Voltage to any non supply pin
Value
5.0
500
-40 to 85
-60 to 150
+20
+0.3
Units
V
mW
C
C
dBm
V
2 For additional information and latest specifications, see our website: www.triquint.com


Features WIRELESS COMMUNICATIONS DIVISION TQ3631 C2 Control Logic C2 L1 DATA SHEET V DD GND GND 3V PCS Band CDMA LNA IC RF IN LNA gnd RF 50 ohm OUT RF Out Con trol Logic C3 Features Small size: SO T23-8 Single 3V operation Low-current o peration Product Description The TQ363 1 is a 3V, RF LNA IC designed specifica lly for PCS band CDMA applications. It s RF performance meets the requiremen ts of products designed to the IS-95 sp ecifications. The TQ3631 is designed to be used with the TQ5631 (CDMA mixer) w hich provides a complete CDMA receiver for 1900MHz phones. The LNA incorporate s on-chip switches which determine high , low and bypass mode select. When used with the TQ5631 (CDMA RFA/mixer), four gain steps are available for use which provide low current/high IP3 and gain. The RF output port is internally match ed to 50 Ω, greatly simplifying the d esign and minimizing the number of exte rnal components. The TQ3631 achieves ex cellent RF performance with low current consumption, supporting lon.
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