Intersil Corporation HFA3600 Datasheet

HFA3600

Data Sheet May 1999

Low-Noise Amplifier/Mixer

The HFA3600 is a silicon Low-Noise Amplifier with high
performance characteristics allowing the design of very
sensitive, wide dynamic-range 900MHz receivers with
minimal external components.

The LNA, Mixer RF, and LO inputs are internally matched to
50Ω. The Mixer IF output isopencollector allowing flexibility
in choosing the IF output impedance, with 1000Ω operation
fully characterized. The mixer performance is optimized for
low LO drive (-3dBm) applications.

Power consumption is kept to a minimum, making the device
ideal for battery-powered hand-held communication
equipment. An integrated power-down feature maximizes
battery life and eliminates the need for external shut down
circuitry.Althoughfully characterized under 5V single supply,
the HFA3600is operable down to 4V with slight performance
differences.

The HFA3600 is part of a complete solution including
application circuit schematics, S-parameters, noise figure,
third-order intercept characterization data and PC board
artwork. Evaluation boards are also available through local
Intersil Sales offices.

File Number 3655.4

Features

• LNA

- Low Noise Figure . . . . . . . . . . . . . . . .2.3dB at 900MHz

- High Power Gain. . . . . . . . . . . . . . . . 12.8dB at 900MHz

- High Intercept . . . . . . . . . . . . . . . . +12.8dBm at Output

• MIXER

- Low Noise Figure . . . . . . . . . . . . . . .12.1dB at 900MHz

- High Power Gain. . . . . . . . . . . . . . . . . 7.0dB at 900MHz

- High Intercept . . . . . . . . . . . . . . . . . .+3.2dBm at Output

- Low LO Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . - 3dBm

• LNA + MIXER

- Low Noise Figure . . . . . . . . . . . . . . .3.97dB at 900MHz

- High Power Gain. . . . . . . . . . . . . . . . 19.8dB at 900MHz

- High Intercept . . . . . . . . . . . . . . . . . . -16.7dBm at Input

- Low Operating Power . . . . . . . . . . . . . . . . . .5V/11.3mA

- Low Shutdown Power . . . . . . . . . . . . . . . . . . .5V/250µA

- Small Package: 14 Lead SOIC (Plastic, Small Outline
Package, 150 Mil Width, 50 Mil Lead Spacing)

Applications

• Portable Cellular Telephone (AMPS, IS-54, GSM, JDC)

Ordering Information

PART

NUMBER

HFA3600IB -40 to 85 14 Ld SOIC M14.15
HFA3600IB96 -40 to 85 14 Ld SOIC in Tape and Reel

TEMP.

RANGE (oC) PACKAGE PKG. NO.

Pinout

HFA3600 (SOIC)

TOP VIEW

LNA V

LO BYPASS

CC

GND

LNA IN

GND
GND

LO IN

1
2
3
4
5
6
7

14

MIXER V
IF OUT

13
12

GND

11

RF IN

10

GND

9

LNA OUT

8

POWER DOWN

CC

• Wireless Data Com. (ISM, Narrowband PCS)

• UHF and Mobile Radio Receiver

• 900MHz Digital Cordless Telephone (CT-2, ISM)

• Wireless Telemetry

Block Diagram

LNA V

CC

GND

LNA IN

GND
GND

LO BYPASS

LO IN

1
2
3
4
5

LNA

6
7

BIAS

IF

LO

RF

14

MIXER V

13

IF OUT

12

GND

11

RF IN

10

GND

9

LNA OUT

8

POWER DOWN

CC

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 407-727-9207

| Copyright © Intersil Corporation 1999

HFA3600

Absolute Maximum Ratings Thermal Information

Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0V

Voltage on Any Other Pin. . . . . . . . . . . . . . . . . . . . -0.3 to VCC+0.3V

VCC to VCC Decouple . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3V

Any GND to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3V

Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-40oC ≤ TA≤ 85oC

Supply Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0 to 5.5V

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1. θJA is measured with the component mounted on an evaluation PC board in free air.

DC Electrical Specifications

SYMBOL PARAMETER CONDITION

I

CC

V
V

I

IL

I

IH

V

LNA-IN

V

LNA-OUT

V

MX-RF

V

MX-LO

t

OFF,ON

Total Supply Current at 5V Normal PD = 2V A 25 - 11.3 12.5 mA

Shutdown PD = 0.8V A 25 - 250 375 µA

Shutdown Logic High Normal Mode A 25 2 - V

IH

Shutdown Logic Low Shutdown Mode A 25 -0.3 - 0.8 V

IL

Shutdown Input Current PD = 0.4V A 25 -200 -150 -100 µA
Shutdown Input Current PD = 2.4V A 25 -45 -24 -3 µA
LNA Input DC Level Normal Mode A 25 - 0.79 - V

Shutdown Mode A 25 - 0.0 - V

LNA Output DC Level Normal Mode A 25 - 4.9 - V

Shutdown Mode A 25 - 5.0 - V

Mixer RFIN DC Level Normal Mode A 25 - 0.79 - V

Shutdown Mode A 25 - 0.0 - V

Mixer LOIN DC Level Normal Mode A 25 - 2.1 - V

Shutdown Mode A 25 - 0.0 - V

Shutdown On-Off-On Time B 25 - 10 - µs

Thermal Resistance (Typical, Note 1) θJA (oC/W)

SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

Maximum Package Power Dissipation at 25oC . . . . . . . . . . . . . . 1W

Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC

Maximum Storage Temperature Range. . . . . . .-65oC ≤ TA≤ 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300oC

(Lead Tips Only)

TEST

LEVEL

TEMP

(oC)

ALL GRADES

CC

UNITSMIN TYP MAX

V

AC Electrical Specifications All Characterization Results have been Obtained with the Use of a

Standard Evaluation Board.

ALL GRADES

SYMBOL PARAMETER

TEST

LEVEL

TEMP

(oC)

LNA (VCC = +5V, TA = 25oC, Test Figure 1 and f = 900MHz Unless Otherwise Noted In Characterization Curves)

S

21LNA

S

12LNA

S

11LNA

S

22LNA

P

-1dBLNA

IP

3LNA

NF

LNA

LNA Gain B 25 11.8 12.8 13.8 dB
LNA Reverse Isolation B 25 - 23 - dB
LNA Input Return Loss B 25 6.0 7.3 - dB
LNA Output Return Loss B 25 10.0 13.0 - dB
LNA Output 1-dB Gain Compression Point B 25 - -2.0 - dBm
LNA Output 3rd-Order Intercept B 25 +11.2 +12.8 - dBm
LNA Noise Figure B 25 - 2.30 2.60 dB

2

UNITSMIN TYP MAX

HFA3600

AC Electrical Specifications All Characterization Results have been Obtained with the Use of a

Standard Evaluation Board. (Continued)

ALL GRADES

SYMBOL PARAMETER

TEST

LEVEL

TEMP

(oC)

MIXER (VCC = 5V, TA = 25oC, fLO = 825MHz at -3dBm, fRF = 900MHz, fIF = 75MHz and Test Figure 1, Unless Otherwise Noted)

PG

S

11RF

S

11LO

NF

MIXER

P

-1dBMIX

IP

3MIX

C

OUTMIX

G

RF-IF

C

MIXER Power Conversion Gain B 25 5.9 7.0 8.1 dB
MIXER RF Input Return Loss B 25 8.0 11.0 - ­MIXER LO Input Return Loss B 25 18.0 26 - dB
MIXER SSB Noise Figure B 25 - 12.1 13.9 dB
MIXER Output 1-dB Gain Compression B 25 - -7.5 - dBm
MIXER Output 3rd-Order Intercept B 25 +1.0 +3.2 - dBm
MIXER IF Output Capacitance B 25 - 2.3 - pF
MIXER RF-IF Isolation

B 25 - 25 - dB

(Includes Matching Network)

G

LO-IF

MIXER LO-IF Isolation

B 25 - 16 - dB

(Includes Matching Network)

G

LO-RF

G

LO-LNAIN

G

LNAOUT -RF

MIXER LO-RF Isolation B 25 16 21 - dB
Mixer LO-LNAIN Isolation B 25 42 50 - dB
LNAOUT-Mixer RFIN Isolation B 25 35 40 - dB

(LNA + MIXER) VCC = 5V, TA = 25oC, fLO = 825MHz at -3dBm, fRF = 900MHz, fIF = 75MHz and Idealized Lossless External Filters

CPG

C

Power Conversion Gain B 25 - 19.8 - dB
CNF Noise Figure B 25 - 3.97 - dB
CIP

3

Input 3rd-Order Intercept B 25 - -16.7 - dBm

NOTE: Test Level: A. Production Tested. B. Guaranteed Limit or Typical Based on Characterization.

UNITSMIN TYP MAX

Test Circuits

LNA IN

4.7µF

1000pF

1000pF

LO IN

1
2
3
4
5
6
7

1000pF

14
13
12
11
10

9
8

10µH

1000pF

1000pF

PD(TTL)

FIGURE 1. EVALUATION TEST CIRCUIT

2 x 0.01µF

1kΩ

1nF

RF IN

LNA OUT

V

CC

390nH

3-10pF

(+5V)

IF OUT
75MHz
50Ω

3

HFA3600

Test Circuits (Continued)

2 x 0.01µF

4.7µF
V

DUPLEXER

FROM TRANSMITTER

LNA IN

1000pF

1000pF

LO IN

0.01µF

1000pF

1
2
3
4
5
6
7

14
13
12
11
10

9
8

1kΩ10µH

1nF

1000pF

1000pF

PD(TTL)

FIGURE 2. TYPICAL APPLICATION CIRCUIT

TABLE 1. TYPICAL CELLULAR FRONT-END CASCADED PERFORMANCE

IMAGE

DUPLEXER LNA

FILTER MIXER IF FILTER IF AMP UNITS

Noise Figure 3.0 2.3 3.0 12.1 8.0 3.0 dB
Gain -3.0 12.8 -3.0 7.0 -8.0 20.0 dB
OUTPUT IP3 100.0 12.8 100.0 3.2 Not Applicable (Note) dBm
Cascaded Noise Figure = 8.55dB Cascaded Gain = 25.8dB Input IP3 = -10.8dBm

NOTE: Cascaded results are using 100.0dBm for IP3.

CC

IF FILTER (50Ω)

390nH

3-10pF

IMAGE FILTER (50Ω)

IF OUT

IF AMPLIFIER

Supply Characteristics

12.0

11.0
TICC

10.0

TOTAL ICC (mA)

9.0

4.5 4.7 4.9 5.1 5.3 5.5
SUPPLY VOLTAGE

FIGURE 3. TOTAL ICC vs SUPPLY VOLTAGE FIGURE 4. TOTAL ICC vs TEMPERATURE

TICC OFF

350

300

250

200

TOTAL SHUTDOWN ICC (mA)

11.9

11.7

11.5

TOTAL ICC (mA)

11.3

11.1

TICC

- 40 - 20 0 20 40 60 80
TEMPERATURE (oC)

T ICC OFF

400

350

300

250

200

150

TOTAL SHUTDOWN ICC (mA)

4

LNA Characteristics

HFA3600

20

2dB/DIV

MAGNITUDE (dB)

0

800

FREQUENCY (MHz)

900

FIGURE 5. LNA S21 vs FREQUENCY AND V

0

2dB/DIV

5.0V

4.5V

20

2dB/DIV

25

5.5V

MAGNITUDE (dB)

1000

CC

85

25

0

800

900

FREQUENCY (MHz)

FIGURE 6. LNA S21 vs FREQUENCY AND TEMPERATURE

0

5dB/DIV

-40

85

1000

85

25

MAGNITUDE (dB)

-20
800 1000

900

FREQUENCY (MHz)

-40
MAGNITUDE (dB)

-50
800

900

FREQUENCY (MHz)

-40

1000

FIGURE 7. LNA S11 vs FREQUENCY AND TEMPERATURE FIGURE 8. LNA S12 vs FREQUENCY AND TEMPERATURE

0

2dB/DIV

MAGNITUDE (dB)

-20
800

900

FREQUENCY (MHz)

85

25

-40

1000

0.00

-1.00

-2.00

-3.00

P1dB (dBm)

-4.00

-5.00
800 900 1000

FREQUENCY (MHz)

FIGURE 9. LNA S22 vs FREQUENCY AND TEMPERATURE FIGURE 10. LNA OUTPUT 1dB COMPRESSION vs FREQUENCY

5