TQ9203 Downconverter IC Datasheet

TQ9203 Datasheet, PDF, Equivalent


Part Number

TQ9203

Description

Low-Current Cellular Band Downconverter IC

Manufacture

TriQuint Semiconductor

Total Page 12 Pages
Datasheet
Download TQ9203 Datasheet


TQ9203
WIRELESS COMMUNICATIONS DIVISION
Mixer
LO In
LNA
IN0
Select
LNA
IN1
VDD
Mixer
IF out
Mixer
RF In
LNA
out
TQ9203
DATA SHEET
Low-Current Cellular
Band Downconverter IC
GND
LO Tune
Product Description
The TQ9203 RFIC Downconverter is a multifunction RF front end designed for the
high dynamic range cellular communications standards. The design of the TQ9203
provides a 2.5dB system noise figure for excellent sensitivity, and a good signal
range with –10dBm input IP3. Its low current consumption, single +5V operation and
small, plastic surface-mount package are ideally suited for cost-competitive, space-
limited and portable applications. In addition, two selectable RF inputs simplify
implementation of “antenna diversity”in applications such as CDPD. The TQ9203 is
specified over a RF frequency range of 800 to 1000MHz, and therefore may be used
for any of the cellular and cordless telephony standards.
Electrical Specifications1
Features
§+5-V single supply
§Internal buffer amplifier on mixer
LO port
§On-chip matching to 50
§Two selectable RF inputs
§Low-cost SO-14 plastic package
§21dB system gain
§-10dBm typical input intercept point
§2.5dB typ. system noise figure
§10.5mA typ. operating current
Parameter
Frequency
Min Typ Max
800 1000
Units
MHz
Gain 21.0 dB
Noise Figure
2.5 dB
Input 3rd Order Intercept
-10.0 dBm
DC supply Current
10.5 mA
Note 1. Test Conditions: Vdd=5V, Ta=25C, filter IL=3.0dB, RF=881MHz, LO=966MHz, IF=85MHz,
LO input=-6dBm
2. Specified with external noise-matching circuit elements, with image-stripping BPF IL=3dB
3. Frequency separation of the two signals is 500KHz; BPF IL=3dB
Applications
§Cellular Communications
§Spread-Spectrum Receivers
§Cordless Phones
Electrical Characteristics
For additional information and latest specifications, see our website: www.triquint.com
1

TQ9203
TQ9203
Data Sheet
Parameter
Conditions
Min. Typ/Nom Max. Units
RF Frequency
Tuned external match
800
1000 MHz
LO Frequency
Tuned external match
700
1300 MHz
IF Frequency
Tuned external match
30
300 MHz
LO input level
-6 dBm
Supply voltage
4.5 5.0 5.5 V
Gain (LNA IN1)
Gain (LNA IN0)
LO=-6dBm, RF=-35dBm
LO=-6dBm, RF=-35dBm
18.0 21.0
21.0
dB
dB
Noise Figure
LNA IN0 Pin; SSB
LNA IN1 Pin; SSB
2.8 dB
2.5 3.0 dB
Input 3rd Order Intercept
Frequency Sep. = 500KHz
-10.0 dBm
Return Loss
Mixer RF input
Mixer LO input
LNA OUT Return Loss
10 dB
10 dB
20 dB
Supply Current
10.5 12 mA
Note 1. Test Conditions:, Vdd=5.0V, Ta=25C, filter IL=3.0dB, RF=881MHz, LO=966MHz, IF=85MHz, LO input=-6dBm: unless otherwise specified.
2. Conversion gain, noise figure, and IP3 assume an image stripping band-pass filter between the LNA section and the Mixer section with a 3dB insertion loss.
Electrical Characteristics-LNA section only
Parameter
Conditions
Min. Typ/Nom Max. Units
Gain RF=-40dBm
18.0 dB
Noise Figure
LNA0 Active
LNA1 Active
2.1 dB
1.8 dB
Input 3rd Order Intercept
Separation: 500KHz
+13.0
dBm
Output Gain Compression
1.5 dBm
Off Isolation, LNA In1/Out
Select=0V, LNAo On
-7 dB
Off Isolation, LNA In0/Out
Select=5C, LNA1 On
-5 dB
Reverse Isolation
38.0 dB
Supply Voltage
4.5 5.0 5.5 V
Supply Current
Mixer Off(2) Powered down
8.8 mA
Note 1. Test Conditions:, Vdd=5.0V, Ta=25C, RF=881MHz.
2. Vdd pin supplies connect to both the LNA and the LO buffer amps. Mixer cannot operate without Vdd connection. Mixer Vdd through the IF pin connects
only to the mixer FET.
2 For additional information and latest specifications, see our website: www.triquint.com


Features WIRELESS COMMUNICATIONS DIVISION VDD TQ 9203 Mixer IF out Mixer RF In Mixer LO In DATA SHEET LNA IN0 Select LNA IN1 Low-Current Cellular Band Downconvert er IC LNA out GND LO Tune Features §+5-V single supply §Internal buffer amplifier on mixer LO port Product Des cription The TQ9203 RFIC Downconverter is a multifunction RF front end designe d for the high dynamic range cellular c ommunications standards. The design of the TQ9203 provides a 2.5dB system nois e figure for excellent sensitivity, and a good signal range with –10dBm inpu t IP3. Its low current consumption, sin gle +5V operation and small, plastic su rface-mount package are ideally suited for cost-competitive, spacelimited and portable applications. In addition, two selectable RF inputs simplify implemen tation of “ antenna diversity”in ap plications such as CDPD. The TQ9203 is specified over a RF frequency range of 800 to 1000MHz, and therefore may be us ed for any of the cellular and cordless telephony standards. Electrical.
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