Datasheet RF2492, RF2492PCBA Datasheet (RF Micro Devices)

ü

8-33

8

FRONT-ENDS

Preliminary

Product Description

Ordering Information

Typical Applications

Features

Functional Block Diagram

RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro,NC 27409, USA

Tel [phone]

Fax [phone]

http://www.rfmd.com

Optimum Technology Matching® Applied

Si BJT GaAs MESFETGaAs HBT
Si Bi-CMOS

SiGe HBT

Si CMOS

LNAIPSEL

LNA ISET

X2 ENABLE

BAND SEL

IF SEL

32

31

17

10

9

LOGIC

CONTROL

PCS LNA IN

CELL LNA IN

LNA GAIN SEL

MIX GAIN SEL

11

14

12

30

25 23

4
5

7
8

19
20
21
22

11815

PCS LO OUT ­CELL LO OUT+
CELL LO OUT-

PCS LO OUT+

IF1+

IF2+

IF1-

IF2-

LO IN

CELL MIX IN

CELL LNA OUT

X2

PCS MIX IN

PCS LNA OUT

RF2492

DUAL-BAND LOW NOISE AMPLI F IER/MIXER

• TDMA-GSM Cellular/PCS Handsets

• TDMA Cellular/PCS Handsets

• GAIT Handsets

• CDMA Cellular/PCS Handsets

• GSM DCS/PCS Handsets

The RF2492 is a fully featured dual-band LNA/Mixer and
is usable in a variety of mobile handset applications. The
unique dual IF outputs provide interface to two indepen­dent IF SAW filters supporting applications such as
TDMA-EDGE where 30kHz and 200kHz bandwidth SAW
filters are used. With independent power management
control pins for the LNAs and mixers, either IF output can
be accessed from either high- or low-band LNAs, provid­ing maximum flexibility with minimum power usage. Multi­ple gain control options are provided to achieve a very
large dynamic range for the receiver. A frequencydoubler
is included in the LO circuit to generate both high- and
low-band LO signals with a single VCO. The RF2492 is
packaged in a 32 pin, 5mmx5mm, leadless plastic pack­age.

• Complete Dual-Band Receiver Front End

• Low Noise Figure

• Stepped LNA/Mixer Gain Control

• Adjustable LNA Bias Current/IIP3

• Integrated LO Frequency Doubler

• Differential LO Buffer Outputs

RF2492 Dual-Band LowNoise Amplifier/Mixer
RF2492 PCBA Fully Assembled EvaluationBoard

8

Rev A4 010828

1.00

0.85

5.00
sq.

NOTES:

Shaded Pin is Lead 1.

1

Package Warpage:0.05mm max.

4

Die Thickness Allowable:0.305 mm max.

5

Pin 1 identifier must exist on top surface of package by identification
mark or feature on the package body. Exact shape and size is optional.

2

Dimension appliestoplatedterminal:to be measuredbetween 0.02 mm
and 0.25 mm from terminal end.

3

0.30

0.18

3

0.60

0.24 typ

0.55

0.30

0.50

0.23

0.13

4PLCS

0.45

0.20

4PLCS

0.05

0.01

0.80

0.65

3.25

2.95 sq.

12°

MAX

Package Style: LCC, 32-Pin, 5x5

Preliminary

8-34

RF2492

Rev A4 010828

8

FRONT-ENDS

Absolute Maximum Ratings

Parameter Rating Unit

Supply Voltage -0.5 to +5.0 V

DC

Input LO and RF Levels +6 dBm
Operating Ambient Temperature -40 to +85 °C
Storage Temperature -40 to +150 °C

Parameter

Specification

Unit Condition

Min. Typ. Max.

Overall

T= 25°C, VCC=2.75V

RF Frequency Range 881 MHz Specifications

1960 MHz Specifications

800 950 MHz Usable range

1700 2100 MHz Usable range

IF Frequency Range 110 MHz Specifications

50 250 MHz Usable range
Cell LO Buffer Output -13.0 -12.7 dBm T1 insertion loss not considered.
PCS LO Buffer Output -14.0 -12.7 dBm T2 insertion loss not considered.

Cellular Band

Freq=869MHz to 894MHz

LNA (On)

RF=880MHz and 881MHz

Gain 13.5 14.5 15.5 dB LNA set for max IIP3

13.5 14 15 dB LNA set for Nominal IIP3

Noise Figure 2.0 2.2 dB LNA set for max IIP3

1.8 2.0 dB LNA set for Nominal IIP3

Input IP3 +7.0 +7.5 dBm LNA set for max IIP3

+1.5 +3.0 +7.0 dBm LNA set for Nominal IIP3

LNA (Off)

Gain -8.5 -7.5 -6.5 dB
Noise Figure 5.5 5.8 6.0 dB
Input IP3 +20.0 +21.0 dBm

Mixer

IF Select=1, (IF1) RF=880MHz,
LO =990MHz@-5dBm

Gain 12 13 14 dB Mixer RF amp ON;

Z

LOAD

=1kΩ single-ended

3.5 4.4 5.0 dB Mixer RF amp OFF

Noise Figure 6.5 7.0 7.5 dB Mixer RF amp ON

13.5 14.0 14.5 dB Mixer RF amp OFF

Input IP3 +2.0 +4.5 dBm MixerRF amp ON

+11.5 +13.8 dBm Mixer RF amp OFF

LO Input Level -5 dBm Specifications

-10 +3 dBm Usable range

Mixer

IF Select=0, (IF2) RF=880MHz,
LO =990MHz@-5dBm

Gain 12 13 14 dB Mixer RF amp ON;

Z

LOAD

=1kΩ single-ended

3.0 4.4 dB Mixer RF amp OFF

Noise Figure 6.8 7.2 7.4 dB Mixer RF amp ON

13.7 14.0 14.2 dB Mixer RF amp OFF

Input IP3 +2.0 +4.5 dBm MixerRF amp ON

+11.5 +14.0 dBm Mixer RF amp OFF

LO Input Level -5 dBm Specifications

-10 +3 dBm Usable range

Caution! ESD sensitive device.

RF Micro Devices believes thefurnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).

Preliminary

8-35

RF2492

Rev A4 010828

8

FRONT-ENDS

Parameter

Specification

Unit Condition

Min. Typ. Max.

Mixer Isolation

LO to RF 40 42 dB Mixer RF amp ON
LO to RF 33.5 35 dB Mixer RF amp OFF
RF to LO 56.5 63 dB Mixer RF amp ON
RF to LO 54.5 60.5 dB Mixer RF amp OFF
LO to IF1 24 36.5 dB Mixer RF amp ON
LO to IF2 28 42 dB Mixer RF amp ON
IF1 to RF 50 51 dB Mixer RF amp ON
RF to IF1 43.5 44.5 dB Mixer RF amp ON
IF2 to RF 49.5 50.5 dB MixerRF amp ON
RF to IF2 43 45 dB Mixer RF amp ON

Cascade (LNA On)

IF Select= 1, 3dB RF Filter Insertion Loss

Gain 24.5 dB LNA set for max IIP3; Mixer RF amp ON

24 dB LNA set for Nominal IIP3; Mixer RF amp ON

15.9 dB LNA set for max IIP3; Mixer RF amp OFF

15.4 dB LNA set for Nominal IIP3; Mixer RF ampOFF

Noise Figure 2.8 dB LNA set for max IIP3; Mixer RF amp ON

2.7 dB LNA set for Nominal IIP3; Mixer RF amp ON

5.3 dB LNA set for max IIP3; Mixer RF amp OFF

5.4 dB LNA set for Nominal IIP3; Mixer RF ampOFF

Input IP3 -6.5 dBm LNA set for max IIP3; Mixer RF amp ON

-6.4 dBm LNA set for Nominal IIP3; Mixer RF amp ON

+1.1 dBm LNA setfor max IIP3; MixerRF amp OFF

0 dBm LNA set for Nominal IIP3;Mixer RF ampOFF

Cascade (LNA Off)

IF Select= 1, 3dB RF Filter Insertion Loss

Gain 2.5 dB Mixer RF amp ON

-6.0 dB Mixer RF amp OFF

Noise Figure 17.4 dB Mixer RF amp ON

24.5 dB Mixer RF amp OFF

Input IP3 +14.5 dBm Mixer RF amp ON

+19.0 dBm Mixer RF amp O FF

PCS Band

Freq=1930MHz to 1990MHz

LNA (On)

RF=1960MHz and 1961MHz

Gain 13.0 14.8 dB LNA set for max IIP3

13.0 14.0 dB LNA set for Nominal IIP3

Noise Figure 1.5 1.9 dB LNA set for max IIP3

1.7 1.8 1.9 dB LNA set for Nominal IIP3

Input IP3 +7.0 +9.0 dBm LNA set for max IIP3

+0.5 +3.5 dBm LNA set for Nominal IIP3

LNA (Off)

Gain -7.0 -5.5 dB
Noise Figure 6.0 6.2 6.5 dB
Input IP3 +20.0 +25.0 dBm

Mixer

RF=1960MHz, LO=1035MHz@-5dBm,
IF Select=1 (IF1)

Gain 11.5 12.5 dB MixerRF amp ON;

Z

LOAD

=1kΩ single-ended

2.0 3.5 dB Mixer RF amp OFF

Noise Figure 8.0 8.5 9.0 dB Mixer RF amp ON

15.0 15.5 16.0 dB Mixer RF amp OFF

Input IP3 +4.0 +6.0 dBm Mixer RF amp ON

+14.0 +16.0 dBm Mixer RF amp OFF

LO Input Level -5 dBm Specifications

-10 +3 dBm Usable range

Preliminary

8-36

RF2492

Rev A4 010828

8

FRONT-ENDS

Parameter

Specification

Unit Condition

Min. Typ. Max.

Mixer

RF =1960MHz, LO=1035MHz@-5dBm,
IF Select=0 (IF2)

Gain 11.0 12.6 dB MixerRF amp ON;

Z

LOAD

=1kΩ single-ended

2.0 3.5 dB Mixer RF amp OFF

Noise Figure 8.0 8.4 9.0 dB Mixer RF amp ON

15.0 15.5 16.5 dB Mixer RF amp OFF

Input IP3 +3.5 +6.0 dBm MixerRF amp ON

+14.0 +16.0 dBm Mixer RF amp OFF

LO Input Level -5 dBm Specifications

-10 +3 dBm Usable range

Mixer Isolation

LO to RF 55 57.5 dB Mixer RF amp ON
LO to RF 54 63 dB Mixer RF amp OFF
RF to LO 49.8 52.5 dB Mixer RF amp ON
RF to LO 52 55.5 dB Mixer RF amp OFF
LO to IF1 54.5 55.5 dB Mixer RF amp ON
LO to IF2 58.5 59 dB Mixer RF amp ON
IF1 to RF 49.5 51 dB Mixer RF amp ON
RF to IF1 33 34.5 dB Mixer RF amp ON
IF2 to RF 49 50.5 dB Mixer RF amp ON
RF to IF2 41 42.5 dB Mixer RF amp ON

Cascade (LNA On)

3dB RF Filter Insertion Loss

Gain 24.3 dB LNA set for max IIP3; Mixer RF amp ON

23.5 dB LN A set for Nominal IIP3; Mixer RF amp ON

15.3 dB LN A set for max IIP3; MixerR F amp OFF

14.5 dB LNA set for Nominal IIP3; Mixer RF ampOFF

Noise Figure 2.6 dB LNA set for max IIP 3; Mixer RF amp ON

3.1 dB LNA set for Nominal IIP3; Mixer RF amp ON

5.7 dB LNA set for max IIP3; MixerRF amp OFF

6.3 dB LNAset for Nominal IIP3; Mixer RF ampOFF

Input IP3 -6 dBm LNA set for max IIP3; Mixer RF amp ON

-5.6 dBm LNA set for Nominal IIP3; Mixer RF amp ON
+3.0 dBm LNA set for max IIP3; Mixer RF amp OFF
+1.5 dBm LNA set forNominal IIP3;MixerRF a m pOFF

Cascade (LNA Off)

3dB RF Filter Insertion Loss

Gain 4 dB Mixer RF amp ON

-5 dB MixerRF amp OFF

Noise Figure 17 dB Mixer RF amp ON

24 dB Mixer RF amp OFF

Input IP3 +14.0 dBm Mixer RF amp ON

+21.7 dBm MixerRF amp OFF

Power Supply

IF Select=1

Supply Voltage 2.75 V Specifications

2.7 3.6 V Operating range

Supply Current 38 40 mA Cellular; LNA On, MaxIIP3,MixerRFampON

36 38 mA Cellular;LNAOn,NomIIP3,Mixer RFamp ON
32 34 mA Cellular; LNA Off, Mixer RF amp O N
26 28 mA Cellular; LNA Off, Mixer RF amp O FF

LNA Current 40.0 42.5 mA PCS; LNA On, Max IIP3, Mixer RF amp ON

38.5 40.5 mA PCS; LNA On, Nom IIP3, Mixer RF amp ON

34.5 36.0 mA PCS; LNA Off, Mixer R F amp ON

28.0 29.5 mA PCS; LNA Off, Mixer R F amp OFF

Preliminary

8-37

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8

FRONT-ENDS

State Table (Typical Values for VCC=2.75V and 3dB RF Filter Insertion Loss)

Control Logic Table

Parameter

Cellular PCS

LNA On LNA Off LNA On LNA Off

LNA at Max IIP3 LNA at Nom IIP3 LNA at M ax IIP3 LNA at Nom IIP3

Mixer

Amp On

Mixer

Amp Off

Mixer

Amp On

Mixer

Amp Off

Mixer

Amp On

Mixer

Amp Off

Mixer

Amp On

Mixer

Amp Off

Mixer

Amp On

Mixer

Amp Off

Mixer

Amp On

Mixer

Amp Off

Cascade

Gain (dB) 24.5 15.9 24 15.4 2 -6.8 24.3 15.3 23.5 14.5 4 -5
Noise Figure ( dB) 2.8 5.3 2.7 5.4 18.2 25.2 2.6 5.7 3.1 6.3 17 24
Input IP3 (dBm) -6.5 +1.1 -6. 4 0 +14.9 +19.5 -6 + 3 -5.6 +1.5 +14 +21.7
Total C urrent 38 36 32 26 40 38.5 34.5 28

LNA

Gain (dB) 14.5 14.5 1 4 14 -7.5 - 7.5 14 .8 14.8 14 14 -5.5 -5.5
Noise Figure ( dB) 2.0 2.0 1.8 1.8 5.8 5.8 1.5 1.5 1.8 1.8 6.2 6.2
Input IP3 (dBm) +7.5 +7.5 +3 +3 +21 +21 +9 +9 +3.5 +3.5 25 25
Isolation (dB)
LNA Current (mA)

Mixer

Gain (dB) 13 4.4 13 4.4 13 4.4 12.5 3.5 12.5 3.5 12.5 3.5
Noise Figure ( dB) 7 14 7 14 7 14 8.5 15.5 8.5 15.5 8.5 15.5
Input IP3 (dBm) +5.1 +13.8 +5.1 +13.8 +5.1 +13.8 +6 +16 +6 +16 +6 +16
LO Input Level (dBm) -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5 -5
LO to RF Isolation(dB)
Mixer Current (mA)

BAND SEL IF SEL LNA GAIN MIX GAIN LNA IP SEL ENABLE

PCS IF2 High Gain/High

Linearity

101111

PCS IF2 High Gain/Nomi-

nal Linearity

101101

PCSIF2Mid1Gain101001
PCSIF2Mid2Gain100101
PCSIF2LowGain 100001
Cell IF2 High Gain/

High Linearity

001111

Cell IF2 High Gain/Nomi-

nal Linearity

001101

CellIF2Mid1Gain 001001
CellIF2Mid2Gain 000101
CellIF2LowGain 000001
Cell IF1 High Gain/

High Linearity

011111

Cell IF1 High Gain/

Nominal Linearity

011101

CellIF1Mid1Gain 011001
CellIF1Mid2Gain 010101
CellIF1LowGain 010001
Shutdown XXXXX0
Not Defined 1 1 X X X 1

Preliminary

8-38

RF2492

Rev A4 010828

8

FRONT-ENDS

Pin Function Description Interface Schematic

1LOIN

LO input fo r both bands. Impedance is approx imately (120-j25)Ω.1kΩ shunt resistor (static bleed).

AC coupled to transistor base
(internal DC block).

2 VCC2

Power supply connection for internal LO amplifiers. External low-induc­tance bypass capacitor between 1nF and 47nF recommended.

3GND

Ground connection.

4IF1+

High-band IF outp u t. Open collector. “Current combiner” IF interface to
1000Ω SAW filter recommended

2pF internal shunt capacitance.

5IF1-

High-band IF outp u t. Open collector. “Current combiner” IF interface to
1000Ω SAW filter recommended

2pF internal shunt capacitance.

6BYPASS

Pin requires external bypass capacitor between 1nF and 47nF.

7IF2-

Low-band IF output. Open collector. “Current combiner” IF interface to
1000Ω SAW filter recommended

2pF internal shunt capacitance.

8IF2+

Low-band IF output. Open collector. “Current combiner” IF interface to
1000Ω SAW filter recommended

2pF internal shunt capacitance.

9 IF SEL

Logic input. High selects IF1 mixer; low selects IF2 mixer. Diode to VCCand Ground.

CMOS logic interface.

10 LNA I P SEL

Logic input. High selects external LNA current reference (pin 17); low
selects internal LNA current reference.

Diode to VCCand Ground.
CMOS logic interface.

11 CELL LNA

IN

Low-band LNA input (base). Simple external matching required forbest
performance.

12 LNA GAIN

SEL

Logic input. High selects maximum LNA gain; low selects minimum
LNA gain.

Diode to VCCand Ground.
CMOS logic interface.

13 VCC1

Power supply for internal references, logic, and mixer preamplifiers.
Internal RF bypass capacitor. External bypass capacitor between 1nF
and 47nF required.

14 MIX GAIN

SEL

Logic input. High selects maximum mixer gain (mixer RF amp on); low
selects minimum mixer gain (mixer RF amp off).

Diode to VCCand Ground.
CMOS logic interface.

15 CELL LNA

OUT

Low-band LNA output (collector). Simple external L-C matching
required.

16 GND

Ground connection. See evaluation board layout.

17 LNA ISET

External current reference for LNA. Resistor to ground sets LNA cur­rent when Pin 10 is high. 20kΩ results in approximately 10mA LNA cur­rent. Higher resistance results in lower current.

18 CELL MIX

IN

Low band mixer RF preamplifier input (base). External L-C network
required for best performance.

19 PCS LO

OUT+

High-band buffered LO output. Internal DC blocking capacitor.

1kΩ shunt resistor (static bleed).

20 PCS LO

OUT-

High-band buffered LO output. Internal DC blocking capacitor.

1kΩ shunt resistor (static bleed).

21 CELL LO

OUT+

Low-band buffered LO output. Internal DC blocking capacitor.

1kΩ shunt resistor (static bleed).

22 CELL LO

OUT-

Low-band buffered LO output. Internal DC blocking capacitor.

1kΩ shunt resistor (static bleed).

23 PCS MIX IN

High-band mixer RF preamplifier input (base). External L-C network
required for best performance.

24 GND

Ground connection. Keep traces physically short and connect immedi­ately to ground plane (low-inductance ground required for best perfor­mance).

Preliminary

8-39

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8

FRONT-ENDS

Pin Function Description Interface Schematic

25 PCS LNA

OUT

High-band LNA output (collector). Small external inductance required
for best impedance match to 50Ω.

26 VCC2

High-band LNA p ower supply connection. Small series inductance
required.

27 GND2

High-band LNA emitter. Low-inductance ground required.

28 GND2

Same as pin 27.

29 GND2

Same as pin 27.

30 PCS LNA IN

High-band LNA input (base). Simple external matching required for
best performan ce.

31 BAND SEL

Logic input. High selects high-band operation; low selects low-band
operation.

Diode to VCCand Ground.
CMOS logic interface.

32 X2 ENABLE

Logic input. High enables LO doubler; low disables LO doubler. Diode to VCCand Ground.

CMOS logic interface.

Die

Flag

GND

Low inductance ground connection critical to proper operation.

Preliminary

8-40

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8

FRONT-ENDS

Pin Out

1

3

6

4

5

2

9 1410 1311 12

32 2731 2830 29

24

22

19

21

20

23

26 25

7

8

15 16

18

17

LO IN

VCC2

GND

IF1+

IF1-

BYPASS

IF2-

IF2+

IF SEL

LNA IP S EL

CELL LNA I N

LNA GAIN SEL

VCC1

MIX GAIN SEL

CELL LNA OUT

GND

LNA ISET

CELL MIX IN

PCS LO OUT+

PCS OUT-

CELL LO OUT+

CELL LO OUT-

PCS MIX IN

GND

PCS LNA OUT

VCC2

GND2

GND2

GND2

PCS LNA IN

BAND SEL

X2 ENABLE

Preliminary

8-41

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8

FRONT-ENDS

Application Schematic

1

3

6

4

5

2

9 1410 1311 12

32 2731 2830 29

24

22

19

21

20

23

26 25

7

8

15 16

18

17

33 nF

X2 ENABLE

BAND SEL

120 Ω

47 nH

C2

33 nF

36 nH 2.2 nH

33 nF

47 nH

C1

20 pF

33 nF

180 nH

18 pF

270 nH

8pF

20 pF

180 nH

18 pF

270 nH

8pF

33 nF

LNA GAIN

C2

33 nF

IN OUT

GND GND

GND GND

7.5 nH

IP SETIF SEL

2

1

4

3

6

5

C1

F1

47 nH C1

IN OUT

GND GND

GND GND

33 nF

F241

52

63

27 kΩ

4pF

5.6 nH

MIX GAIN

VCO L OUTN

VCO L OUTP

VCO H OUTN

VCO H OUTP

V

CC

LNA H IN

LO IN

V

CC

V

CC

IF1 OUT

V

CC

IF2 OUT

LNA L IN

V

CC

V

CC

4pF

LNA L OUT

33 pF

NOTES:

1. C1's arenot needed if filter DC impedanceis open circuit(as is normally the case).

2. C2's are not needed if duplexer DC impedance is open circuit (as is normallythe case).

3. IF interface shown is 50 Ω @110MHz.

Preliminary

8-42

RF2492

Rev A4 010828

8

FRONT-ENDS

Evaluation Board Schema t ic

IF=110MHz

(Download Bill of Materials from www.rfmd.c om.)

1

3

6

4

5

2

9 1410 1311 12

32 2731 2830 29

24

22

19

21

20

23

26 25

7

8

15 16

18

17

J1

LO IN

C27

33 nF

X2 ENABLE

BAND SEL

C28

33 nF

R1

120 Ω

VCC

L13

47 nH

C26

33 nF

C25

33 nF

J11

LNA H IN

L12

36 nH

VCC

L11

2.2 nH

C23

33 nF

J10

L

NA H OUT

C22

33 nF

L8

47 nH

C24
DNI

C3

20 pF

C4

33 nF

L1

180 nH

C1

18 pF

L2

270 nH

R2
0 Ω

C2

8pF

VCC

R3

DNI

J2

IF1 OUT

C5

20 pF

L3

180 nH

C7

18 pF

L4

270 nH

VCC

R4
0 Ω

C6

8pF

R5

DNI

J3

IF2 OUT

C13

33 nF

VCCLNA GAIN

C11

33 nF

J4

LNA L IN

C10

33 nF

IN OUT

GNDGND

GNDGND

L5

7.5 nH

C9

33 nF

IP SET

C8

33 nF

IF SEL

2

1

4

3

6

5

C21
DNI

C20

33 nF

J9

MIX H IN

F1

1

5

2

3

6

4

J8

LO L OUT

IN GND

GND OUT

IN GND

IN IN

GND GND

GND IN

T1

6

5

4

2

1

3

T2

J7

LO H OUT

L7

47 nH

C18
DNI

J6

MIX L IN

IN OUT

GND GND

GND GND

C17

33 nF

F241

52

63

R6

27 kΩ

C12

33 nF

C16
DNI

L6

5.6 nH

C15

4pF

J5

LNA L OUT

VCC

C14

33 nF

MIX GAIN

P1

123456789

10

CON10

P1-8

GND

P1-1

GND

P1-7

P1-6

P1-5

P1-4

P1-3

P1-2

VCC

X2 ENABLE

BAND SEL

IP SET

IF SEL

LNA GAIN

MIX GAIN

NC

C29

1uF

+

636.6 pS Delay

0.20 dB Line Loss

460.0 pS Delay

0.02 dB Line Loss

522.7 pS Delay

0.03 dB Line Loss

629.8 pS Delay

0.17 dB Line Loss

592.7 pS Delay

0.15 dB Line Loss

644.7 pS Delay

0.17 dB Line Loss

C19

33 nF

442.2 pS Delay

0.28 dB Line Loss

421.3 pS Delay

0.11 dB Line Loss

605.0 pS Delay

0.40 dB Line Loss

637.6 pS Delay

0.45 dB Line Loss

633.0 pS Delay

0.45 dB Line Loss

NOTE:T1 andT2 approximate insertion loss is ~2 dB.

Preliminary

8-43

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8

FRONT-ENDS

Evaluation Board Layout

Board Size 3.0” x 3.0”

Board Thickness 0.0616”, Board Material FR- 4, Multi-Layer

Assembly

Preliminary

8-44

RF2492

Rev A4 010828

8

FRONT-ENDS

Top

Typical Inner Layer

Preliminary

8-45

RF2492

Rev A4 010828

8

FRONT-ENDS

Back

Preliminary

8-46

RF2492

Rev A4 010828

8

FRONT-ENDS

LNA Low Band Gain, Noise Figure and IIP3 versus I

CC

LNA Only (LNA High Gain)

-10.0

-5.0

0.0

5.0

10.0

15.0

20.0

2.0 4.0 6.0 8.0 10.0 12.0

ICC(mA)

Gain (dB) and IIP3 (dBm)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

Noise Figure (dB)

Gain (dB)
IIP3(dBm)
NF (dB)

Resistor(R6) versusICC (mA)

LNA Low Band Only (LNA High Gain)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

2.00 4.00 6.00 8.00 10.00 12.00

ICC(mA)

R6 (k

Ω

)

LNA High Band Gain, Noise Figure and IIP3 versus I

CC

LNA Only (LNA High Gain)

-10.00

-5.00

0.00

5.00

10.00

15.00

20.00

2.00 4.00 6.00 8.00 10.00 12.00

ICC(mA)

Gain (dB) and IIP3 (dBm)

1.30

1.35

1.40

1.45

1.50

1.55

1.60

1.65

Noise Figure (dB)

Gain (dB)
IIP3 (dBm)
NF (dB)

Resistor(R6) versusICC(mA)

LNAHighBandOnly(LNAHighGain)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

2.0 4.0 6.0 8.0 10.0 12.0

ICC(mA)

R6 (k

Ω

)

Preliminary

8-47

RF2492

Rev A4 010828

8

FRONT-ENDS

LNA Cellular Band

(Low Gain Mode)

-8.3

-8.2

-8.1

-8.0

-7.9

-7.8

-7.7

-7.6

-7.5

-7.4

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

L

NA Cellular Band

(Low Gain Mode)

15.0

16.0

17.0

18.0

19.0

20.0

21.0

22.0

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

IIP3 (dBm)

IIP3,-30º
IIP3,25º
IIP3,85º

LNA Cellular Band

(HighGain/NominalIP Mode)

13.4

13.5

13.6

13.7

13.8

13.9

14.0

14.1

14.2

14.3

14.4

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

LNA Cellular Band

(HighGain/NominalIP Mode)

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

2.72.82.93.03.13.23.3

VCC(V)

IIP3 (dBm)

IIP3,-30º
IIP3, 25º
IIP3, 85º

LNA Cellular Band

(HighGain/NominalIP Mode)

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.72.82.93.03.13.23.3

VCC(V)

Noise Figure (dB)

NF, -30º
NF, 25º
NF, 85º

LNA Cellular Band

(HighGain/Max IP Mode)

14.0

14.1

14.2

14.3

14.4

14.5

14.6

14.7

14.8

14.9

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

Preliminary

8-48

RF2492

Rev A4 010828

8

FRONT-ENDS

LNA Cellular Band

(HighGain/Max IP Mode)

6.0

6.5

7.0

7.5

8.0

8.5

2.72.82.93.03.13.23.3

VCC(V)

IIP3 (dBm)

IIP3, -30º
IIP3, 25º
IIP3, 85º

LNA Cellular Band

(HighGain/Max IP Mode)

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.72.82.93.03.13.23.3

VCC(V)

Noise Figure (dB)

NF, -30º
NF, 25º
NF, 85º

LNA Cellular Band

(HighGain/NominalIP Mode)

4.00

4.05

4.10

4.15

4.20

4.25

4.30

4.35

4.40

4.45

4.50

2.70 2.80 2.90 3.00 3.10 3.20 3.30

VCC(V)

I

CC

(mA)

Icc, -30º
Icc, 25º
Icc, 85º

LNA Cellular Band

(HighGain/MaxIPMode)

5.95

6.00

6.05

6.10

6.15

6.20

6.25

6.30

6.35

6.40

2.70 2.80 2.90 3.00 3.10 3.20 3.30

VCC(V)

I

CC

(mA)

Icc,-30º
Icc, 25º
Icc, 85º

Preliminary

8-49

RF2492

Rev A4 010828

8

FRONT-ENDS

Cellular Band, Mixer IF1, Low Gain Mode,

LO @ -5 dBm

4.00

4.20

4.40

4.60

4.80

5.00

5.20

5.40

5.60

5.80

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

Cellular Band, Mixer IF1, Low Gain Mode,

LO @ -5 dBm

13.00

13.50

14.00

14.50

15.00

15.50

16.00

16.50

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

IIP3 (dBm)

IIP3, -30º
IIP3, 25º
IIP3, 85º

Cellular Band, Mixer IF1, Low Gain Mode,

LO @ -5 dBm

10.00

10.50

11.00

11.50

12.00

12.50

13.00

13.50

14.00

2.75 2.80 2.85 2.90 2.95 3.00

VCC(V)

Noise Figure (dB)

NF, -30º
NF, 25º
NF, 85º

Cellular Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

12.50

13.00

13.50

14.00

14.50

15.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

CellularBand, MixerIF1, High Gain Mode,

LO @ -5 dBm

5.00

5.50

6.00

6.50

7.00

7.50

8.00

8.50

9.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

IIP3 (dBm)

IIP3,-30º
IIP3,25º
IIP3,85º

Cellular Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

6.00

6.50

7.00

7.50

8.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Noise Figure (dB)

NF, -30º
NF, 25º
NF, 85º

Preliminary

8-50

RF2492

Rev A4 010828

8

FRONT-ENDS

Cellular Band, Mixer IF1, High Gain Mode,

VCC@2.75V

12.0

12.5

13.0

13.5

14.0

14.5

15.0

-10.0 -8.0 -6.0 -4.0 -2.0 0.0

LO (dBm)

Gain (dBm)

Gain, -30º
Gain, 25º
Gain, 85º

CellularBand, MixerIF1, High Gain Mode,

LO @ -5 dBm

55.00

56.00

57.00

58.00

59.00

60.00

61.00

62.00

63.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

LO to IF Isolation (dB)

Isolation, -30º
Isolation, 25º
Isolation, 85º

CellularBand, MixerIF1, High Gain Mode,

VCC=2.75V

5.0

5.1

5.2

5.3

5.4

5.5

5.6

5.7

-10.0 -8.0 -6.0 -4.0 -2.0 0.0

LO (dBm)

IIP3 (dBm)

IIP3, -30º
IIP3, 25º
IIP3, 85º

Cellular Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

31.0

31.5

32.0

32.5

33.0

33.5

34.0

34.5

35.0

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

I

CC

(mA)

Icc, -30º
Icc, 25º
Icc, 85º

Cellular LO Buffer Output, LOIN@-5dBm

(T1 Insertion Loss Not Taken IntoConsideration)

-13.50

-13.00

-12.50

-12.00

-11.50

-11.00

-10.50

-10.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Cellular LO Buffer Output (dBm)

Isolation, -30º
Isolation, 25º
Isolation, 85º

Preliminary

8-51

RF2492

Rev A4 010828

8

FRONT-ENDS

LNA PCS Band

(Low Gain Mode)

-7.0

-6.0

-5.0

-4.0

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

LNA PCS Band

(Low Gain Mode)

24.0

25.0

26.0

27.0

2.72.82.93.03.13.23.33.4

VCC(V)

IIP3 (dBm)

IIP3, -30º
IIP3, 25º
IIP3, 85º

LNA PCS Band

(HighGain/NominalIP Mode)

13.5

14.0

14.5

15.0

15.5

16.0

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

LNA PCS Band

(HighGain/NominalIP Mode)

1.8

2.0

2.2

2.4

2.6

2.8

3.0

3.2

3.4

3.6

2.72.82.93.03.13.23.3

VCC(V)

IIP3 (dBm)

IIP3,-30º
IIP3, 25º
IIP3, 85º

Preliminary

8-52

RF2492

Rev A4 010828

8

FRONT-ENDS

LNA PCS Band

(HighGain/Max IP Mode)

8.5

9.0

9.5

10.0

10.5

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

IIP3 (dBm)

IIP3,-30º
IIP3,25º
IIP3,85º

LNA PCS Band

(HighGain/Max IP Mode)

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.72.82.93.03.13.23.3

VCC(V)

Noise Figure (dB)

NF,-30º
NF,25º
NF,85º

LNA PCS Band

(High Gain/Nominal IP)

4.00

4.05

4.10

4.15

4.20

4.25

4.30

4.35

4.40

4.45

2.70 2.80 2.90 3.00 3.10 3.20 3.30

VCC(V)

I

CC

(mA)

Icc,-30º
Icc,25º
Icc,85º

LNA PCS Band

(HighGain Mode/Max IP Mode)

5.95

6.00

6.05

6.10

6.15

6.20

6.25

6.30

6.35

2.70 2.80 2.90 3.00 3.10 3.20 3.30

VCC(V)

I

CC

(mA)

Icc,-30º
Icc,25º
Icc,85º

LNA PCS Band

(HighGain/NominalIP Mode)

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.72.82.93.03.13.23.3

VCC(V)

Noise Figure (dB)

NF, -30º
NF, 25º
NF, 85º

LNA PCS Band

(HighGain/Max IP Mode)

14.0

14.5

15.0

15.5

16.0

16.5

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

Preliminary

8-53

RF2492

Rev A4 010828

8

FRONT-ENDS

PCS Band, Mixer IF1, Low Gain Mode,

LO @ -5 dBm

15.00

15.50

16.00

16.50

17.00

17.50

18.00

18.50

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Noise Figure (dB)

NF,-30º
NF,25º
NF,85º

PCS Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

12.00

12.50

13.00

13.50

14.00

14.50

15.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

Preliminary

8-54

RF2492

Rev A4 010828

8

FRONT-ENDS

PCS Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

56.94

56.96

56.98

57.00

57.02

57.04

57.06

57.08

57.10

57.12

57.14

57.16

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

LO to IF Isolation (dB)

Isolation, -30º
Isolation, 25º
Isolation, 85º

PCS Band, Mixer IF1, High Gain Mode,

VCC@2.75V

12.0

12.5

13.0

13.5

14.0

14.5

15.0

-10.0 -8.0 -6.0 -4.0 -2.0 0.0

LO (dBm)

Gain (dBm)

Gain, -30º
Gain, 25º
Gain, 85º

PCS Band, Mixer IF1, High Gain Mode,

VCC=2.75V

6.9

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

-10.0 -8.0 -6.0 -4.0 -2.0 0.0

LO (dBm)

IIP3 (dBm)

IIP3, -30º
IIP3, 25º
IIP3, 85º

PCS Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

32.5

33.0

33.5

34.0

34.5

35.0

35.5

36.0

36.5

37.0

2.7 2.8 2.9 3.0 3.1 3.2 3.3

VCC(V)

I

CC

(mA)

Icc, -30º
Icc, 25º
Icc, 85º

PCS LO Buffer Output, LOIN@-5dBm

(T2 Insertion Loss NotTaken Into Consideration)

-14.00

-13.50

-13.00

-12.50

-12.00

-11.50

-11.00

-10.50

-10.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Cellular LO Buffer Output (dBm)

Isolation, -30º
Isolation, 25º
Isolation, 85º

PCS Band, Mixer IF1, Low Gain Mode

LO @ -5 dBm

2.50

3.00

3.50

4.00

4.50

5.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

Gain (dB)

Gain, -30º
Gain, 25º
Gain, 85º

PCS Band, Mixer IF1, Low Gain Mode,

LO @ -5 dBm

17.00

18.00

19.00

20.00

21.00

22.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

IIP3 (dBm)

IIP3, -30º
IIP3, 25º
IIP3, 85º

PCS Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

6.00

7.00

8.00

9.00

10.00

11.00

2.75 2.85 2.95 3.05 3.15 3.25 3.35

VCC(V)

IIP3 (dBm)

IIP3, -30º
IIP3,25º
IIP3,85º

PCS Band, Mixer IF1, High Gain Mode,

LO @ -5 dBm

7.00

8.00

9.00

10.00

2.75 2.80 2.85 2.90 2.95 3.00

VCC(V)

Noise Figure (dB)

NF,-30º
NF,25º
NF,85º