TriQuint Semiconductor Inc TQ5122 Datasheet

WIRELESS COMMUNICATIONS DIVISION

GND

1

GND

16

TQ5122

DATA SHEET

GND

Vdd MXR

MXR LO

VDD LNA

GND

RF IN

GND

2

3

4

5

6

7

8

15

GND

14

IF Output/Vdd

13

GND

MXR RF

12

GND

11

LNA

10

Out

9

Control

Input

Sleep

Product Description

The TQ5122 is a 3V, RF receiver IC designed specifically for Cellular band TDMA
applications. It’s RF performance meets the requirements for products designed to the
IS-136 TDMA and the AMPS standards. The TQ5122 includes a power–down mode
which allows current saving during standby and the non-operating portion of the TDMA
pulse. The TQ5122 contains LNA and Mixer circuits matched to the 800MHz cellular
band.

The mixer uses a high-side LO frequency. The IF has a usable frequency range of 85
to 150MHz. The LNA Output and Mixer Input ports are internally matched to simplify
the design and keep the number of external components to a minimum. The TQ5122
achieves excellent RF performance with low current consumption which yields long
standby times in portable applications. The small QSOP-16 package is ideally suited
for Cellular band mobile phones.

Electrical Specifications

1

3V Cellular TDMA/AMPS
Receiver IC With Power­Down

Features

 Power-Down, “Sleep” Mode
 Single 2.8V operation
 Low-current operation
 Small QSOP-16 plastic package
 Few external components

Applications

 IS-136 TDMA Mobile Phones
 Dual Mode TDMA/AMPS Mobile Phones
 AMPS Mobile Phones

Parameter Min Typ Max Units
Frequency 869 894 MHz

Gain 18.5 dB
Noise Figure 2.7 dB
Input 3rd Order Intercept -8.5 dBm
DC supply Current 12.0 mA

Note 1: Test Conditions: Vdd= 2.8VDC, Tc=25°C, Filter IL=2.5dB, RF=881MHz, LO=1016MHz,

IF=135MHz, LO input=-7dBm

For additional information and latest specifications, see our website: www.triquint.com 1

TQ5122

Data Sheet

Electrical Characteristics

Parameter Conditions Min. Typ/Nom Max. Units
RF Frequency 869 894 MHz
LO Frequency 954 1044 MHz
IF Frequency 85 150 MHz
LO input level -7 -4 0 dBm
Supply voltage 2.7 2.8 4.0 V
Gain 16.0 18.5 dB
Gain Variation vs. Temp. -40 to 85 °C +/-2.0 dB
Noise Figure 2.7 3.5 dB
Input 3rd Order Intercept -11.0 -8.5 dBm
Return Loss LNA input – with external match

Isolation LO to LNA RF in

IF Output Impedance Vdd = 2.8V; Sleep mode, Device On

Power Down, “sleep” Device On Voltage

Supply Current, Sleep mode, Device On Tc = + 25 °C 12 15 mA
Supply Current, Sleep mode, Device Off Enable voltage = 0, LO Drive off 100 1000

1,2

dB
dB
dB
dB
dB
dB

dB
Ohm
Ohm
Ohm

VDC

µA

LNA output
Mixer RF input
Mixer LO input

LO to IF; after IF match
RF to IF; after IF match

Vdd = 2.8V; Sleep mode, Device Off
Vdd = 0V

Device Off Voltage 0

10
10
10
10
35

40
20

500

Approx. Open

<50
Vdd

0

Vdd VDC

Operating Temperature, case -40 25 +85 °C

Note 1: Test Conditions: Vdd=2.8VDC, Fil ter IL=2.5dB, RF=881MHz, LO=1016MHz, IF=135MHz, LO input=-7dBm, TC = 25°C, unless otherwise specified.
Note 2: Min./Max. limi ts are at +25

°

C case temperature unless otherwise spec ified.

Absolute Maximum Ratings

Parameter Value Units
DC Power Supply 5.0 V
Power Dissipation 500 mW
Operating Temperature -55 to 100 °C
Storage Temperature -60 to 150 °C
Signal level on inputs/outputs +20 dBm
Voltage to any non supply pin -0.3 to Vdd + 0.3 V

2 For additional information and latest specifications, see our website: www.triquint.com

TQ5122
Data Sheet

Typical Performance

Test Conditions (Unl ess Otherwise Speci fied): Vdd=2.8VDC, Tc=25°C, filter IL=2.5dB, RF=881MHz, LO=1016MHz, IF= 135MHz, LO input=-7dBm

Gain vs. Frequency vs. Temperature

25

20

15

Gain (dB)

10

5

0

869 872 875 878 881 884 887 890 893

Frequency (MHz)

Input IP3 vs. Frequency vs. Temperature

-40C
+25C
+85C

-4

-6

-8

-10

-12

Input IP3 (dBm)

-14

-16

85C
25C

-40C

-18
869 872 875 878 881 884 887 890 893

Frequency (MHz)

25

20

15

Gain (dB)

10

5

0

2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6

-4

-6

-8

-10

-12

Input IP3 (dBm)

-14

-16

2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6

Gain vs. Vdd vs. Temperature

+85C
+25C

-40C

Vdd (volts)

Input IP3 vs. Vdd vs. Temperature

Vdd (volts)

+85C
+25C

-40C

NF vs. Frequency vs. Temperature

4

3

2

NF (dB)

1

0

869 872 875 878 881 884 887 890 893

Frequency (MHz)

+85C
+25C

-40C

For additional information and latest specifications, see our website: www.triquint.com 3

4

3.5
3

2.5
2

NF (dB)

1.5
1

0.5
0

2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6

NF vs. Vdd vs. Temperature

+85C
+25C

-40C

Vdd (volts)