Intersil Corporation HFA3661 Datasheet

TM

HFA3661

[ /Title
(HFA3

661)
/Sub­ject
(2.0G
Hz to

2.7GH
z
Down­Con­verter)
/Autho
r ()
/Key­words
(2.0G
Hz to

2.7GH
z
Down­Con­verter,
Inter­sil
Corpo­ration,
semi­con­ductor,
PRIS
M,
Wire­less
Com­muni­cations
, RF,
Radio

PRELIMINARY

Data Sheet February 1999 File Number 4240.2

2.0GHz to 2.7GHz DownConverter

The HFA3661 is a monolithic bipolar
devicefordownconversionapplications
in the 2.0GHz to 2.7GHz range.
Manufactured in the Intersil UHF1X

process, the device consists of a low
noise amplifier and down conversion mixer. An energy
saving power enable control feature assures isolation
between transmit and receive channels for TDMA and/or half
duplex systems. The device is designed for a high Output
IP3, while maintaining low current and 5.5V to 2.7V supply
operation. It requires low drive levelsfrom the local oscillator
and is housed in a small outline 20 lead SSOP package
ideally suited for PCMCIA card applications.

Ordering Information

TEMP.

PART NUMBER

HFA3661IA -40 to 85 20 Ld SSOP M20.15
HFA3661IA96 -40 to 85 Tape and Reel

RANGE (oC) PACKAGE

PKG.

NO.

Pinout

HFA3661

(SSOP)

TOP VIEW

LNA_V

CC

GND

LNA_OUT

GND

LNA_V

CC

GND

LNA_IN

GND

RXM_V

CC

RX_PE

1
2
3
4
5
6
7
8
9

10

20

LNA_PD

19

GND

18

RXM_RF

17

RXM_V

16

LO_BY

15

LO_IN

14

GND

13

BYP_CAP1

12

IF_OUT

11

BYP_CAP2

CC

Features

• RF Frequency Range. . . . . . . . . . . . . . 2.0GHz to 2.7GHz

• IF Operation . . . . . . . . . . . . . . . . . . . . 10MHz to 250MHz

• High Conversion Gain 2.0GHz . . . . . . . . . . . . . . . . . 40dB

2.7GHz . . . . . . . . . . . . . . . . . 36dB

• High Output IP3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 11dBm

• Single Supply Battery Operation . . . . . . . . . 2.7V to 5.5V

• Power Enable Control

• LNA Bypass Control

Applications

• Wireless Local Loop Systems

• PCMCIA Wireless Transceiver

• Wireless Local Area Network Modems

• CDMA/TDMA Packet Protocol Radios

• Full Duplex Transceivers

• Portable Battery Powered Equipment

Block Diagram

LNA_OUT

LNA_PD

LNA_IN

IF_OUT

POWER CONTROL TRUTH TABLE

STATE LNA_PD RCV_PE

Power Down Mode
(LNA, Mixer, and IF Buffer are Power
Down)

Receive Mode
(Mixer Active, LNA Active)

Attenuated Receive Mode
(LNA Power Down used for RF Signal
Attenuation)

NOTE: LNA_PD and RCV_PE are floating pins.

RXM

LNA

BIAS NETWORK

RX_PE

High or Low Low

Low High

High High

RXM_RF
LO_BY
LO_IN

4-1

1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000

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

PRISM® is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation.

Typical Application Diagram

PRISM® FULL DUPLEX CHIP SET

HFA3661

(File #4240)

LNA

CONVERTER

SYNTHESIZER

SYNTHESIZER

AGC

CONVERTER

HFA3663 (File #4241)
HFA3664 (File #4242)

D
U
P
L
E
X
E
R

HFA3424/21
(File #4131)

LNA BPF

HFA3925

(File #4132)

PA BPF

HFA3524

(File #4062)

HFA3524

(File #4062)

RF/IF

RF LO1

RF LO2

IF/RF

FILTER

HFA3661

IF AGC

IF LO1

IF LO2

AGC

HFA3761 (File #4236)

QMODEM

HFA3763

(File #4237)

QMODEM

LPF

A/D

LPF

BASEBAND

LPF

D/A

LPF

OPTIONAL WHEN IN
ANALOG MODE

PRISM FULL DUPLEX RADIO
CHIP SET, FILE #4238

Pin Descriptions

PIN NO. NAME DESCRIPTION

1 LNA_V

CC

2 GND Low Noise Amplifier Ground
3 LNA_OUT Low Noise Amplifier RF Output
4 GND Low Noise Amplifier Ground
5 LNA_V

CC

6 GND Low Noise Amplifier Ground
7 LNA_IN Low Noise Amplifier RF Input
8 GND Low Noise Amplifier Ground
9 RXM_V

CC

10 RX_PE Receive Channel Power Enable (LNA, Mixer, and IF Buffer)
11 BYP_CAP2 Bypass Capacitor
12 IF_OUT Receive Mixer Buffered IF Output
13 BYP_CAP1 Bypass Capacitor
14 GND IF Buffer Ground
15 LO_IN Receive Mixer Local Oscillator Input
16 LO_BY Receive Mixer Local Oscillator Bypass
17 RXM_V

CC

18 RXM_RF Receive Mixer RF Input
19 GND Receive Mixer Ground
20 LNA_PD Low Noise Amplifier Power Down (Bypass mode used for RF Signal Attenuation)

Low Noise Amplifier Positive Power Supply (1 of 2)

Low Noise Amplifier Positive Power Supply (2 of 2)

Receive Mixer Positive Power Supply

Receive Mixer Positive Power Supply

4-2

HFA3661

Absolute Maximum Ratings Thermal Information

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

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

Operating Conditions

Supply Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . 2.7V 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.

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

20 Lead Plastic SSOP . . . . . . . . . . . . . . . . . . . . . . . 110

Package Power Dissipation at 70oC

20 Lead Plastic SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.7W

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

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

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

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

(At Lead Tips Only)

Electrical Specifications V

PARAMETER SYMBOL

CASCADED CHARACTERISTICS (External Reactive Match on IF_OUT to 50Ω, -3dB Loss RF Image Filter, LO_IN = 2080MHz/-3dBm,

Cascaded Power Gain 2.0GHz CRX_PG2.0 B Full - 40 - dB

Cascaded OIP3
(RF = 2300.1MHz,

2299.9MHz/-30dBm)
Cascaded Noise Figure at 2.4GHz CRX_NF2.4 B Full - 4.4 - dB
Cascaded Output 1dB

Compression

LO INPUT CHARACTERISTICS (LO_IN = 2080MHz/-3dBm, all unused inputs and outputs are terminated into 50Ω)
LO Input Frequency Range LO_f B Full 1600 - 2690 MHz
LO Input Drive Level LO_dr B Full -8 -3 +3 dBm
LO Input VSWR LO_SWR A Full - 1.5:1 2.0:1 ­LO Input Return Loss LO_IRL A Full 9.5 14 - dB
LOW NOISE AMPLIFIER (LNA) CHARACTERISTICS (LNA_IN = 2300MHz/-30dBm)
LNA Frequency Range LNA_f B Full 2.0 - 2.7 GHz
LNA Noise Figure at 2.4GHz LNA_NF2.4 B 25 - 3.3 4.0 dB
LNA Power Gain 2.0GHz LNA_PG2.0 A 25 19 22 - dB

LNA Reverse Isolation LNA_ISO B 25 - 30 - dB
LNA OIP3 at 2300.1MHz,

2299.9MHz/-30dBm

LNA Output 1dB
Compression

LNA Input VSWR 2.0GHz LNA_ISWR_2 A 25 - 1.1:1 2.0:1 -

LNA Input Return Loss 2.0GHz LNA_IRL_2.0 A 25 9.5 15.6 - dB

= 5.5V, ZO= 50Ω, Unless Otherwise Specified

CC

(NOTE 2)

TEST

LEVEL

RF = 2150MHz/-30dBm, Receive Mode)

2.7GHz CRX_PG2.7 B Full - 36 - dB

2.0GHz CRX_IP3_2.0 B Full - 14.9 - dBm

2.7GHz CRX_IP3_2.7 B Full - 11.0 - dBm

2.0GHz CRX_P1D2.0 B Full - 2.8 - dBm

2.7GHz CRX_P1D2.7 B Full - 3.8 - dBm

2.7GHz LNA_PG2.7 A 25 13 16 - dB

2.0GHz LNA_IP3_2.0 A 25 9 16 - dBm

2.7GHz LNA_IP3_2.7 A 25 10.5 16 - dBm

2.0GHz LNA_P1D_2.0 B 25 - 0 - dBm

2.7GHz LNA_P1D_2.7 B 25 - 2 - dBm

2.7GHz LNA_ISWR_7 A 25 - 1.4:1 2.0:1 -

2.7GHz LNA_IRL_2.7 A 25 9.5 26.4 - dB

TEMP

(oC) MIN TYP MAX UNITS

4-3

HFA3661

Electrical Specifications V

= 5.5V, ZO= 50Ω, Unless Otherwise Specified (Continued)

CC

(NOTE 2)

PARAMETER SYMBOL

TEST

LEVEL

TEMP

(oC) MIN TYP MAX UNITS

LNA Output VSWR 2.0GHz LNA_OSWR_2 A 25 - 1.4:1 2.0:1 -

2.7GHz LNA_OSWR_7 A 25 - 1.6:1 2.0:1 -

LNA Output Return Loss 2.0GHz LNA_ORL_2.0 A 25 9.5 15.6 - dB

2.7GHz LNA_ORL_2.7 A 25 9.5 12.7 - dB
LNA Max Power In (Functional) LNA_MP B 25 -4 - - dBm
LNA Power Down Attenuation LNA_PD B 25 - 36 - dB
RECEIVE MIXER CHARACTERISTICS (LO_IN = 2230MHz/-3dBm, RXM_RF = 2300MHz/-30dBm, IF_OUT load = 50Ω with external

matching network at 70MHz)
Rx Mixer RF Frequency Range RXM_RFf B Full 2.0 - 2.7 GHz
Rx Mixer IF Frequency Range RXM_IFf B Full 10 - 250 MHz
Rx Mixer SSB Noise Figure at 2.4GHz RXM_NF B 25 - 13 15.5 dB
Rx Mixer Power Conversion Gain 2.0GHz RXM_PG_2.0 A 25 20 22 - dB

2.7GHz RXM_PG_2.7 A 25 19 23 - dB

MixerOIP3 at

2300.1MHz,

2299.9MHz/-30dBm
Rx Mixer IF Output 1dB

Compression

2.0GHz RXM_IP3_2.0 A 25 11 15 - dBm

2.7GHz RXM_IP3_2.7 A 25 8 11 - dBm

2.0GHz RXM_P1D2.0 B 25 - 4 - dBm

2.7GHz RXM_P1D2.7 B 25 - 3 - dBm
Rx Mixer IF_OUT Resistance (IF = 70MHz) RXM_ROUT B 25 - 67 - Ω
Rx Mixer IF_OUT Capacitance (IF = 70MHz) RXM_COUT B 25 - 1.1 - pF
Rx Mixer LO to RF Isolation RXM_LOR B 25 - 22 - dB
Rx Amplifier Max Power Input (Functional) RXM_MP B 25 12 - - dBm

POWER SUPPLY AND LOGIC CHARACTERISTICS

Voltage Supply Range V

CC

Receive Mode Supply Current RCV_I

RCV_I

Attenuated Receive Mode Supply Current
PE = VCC, LNA_PD = V

CC

Power Down Mode Supply Current
LNA_PD = GND

ATTN_I
ATTN_I

PD_I

PD_I
Logic Input Low Level V
Logic Input High Level V

CC
CC

CC

CC
CC
CC

IL
IH

B Full 2.7 - 5.5 V
A 25 - 48 65 mA
B Full - 58 75 mA
B 25 - 19 23 mA
B Full - 19 25 mA
A 25 - 1 100 µA
B Full - 1 100 µA
A Full -0.2 - 0.8 V
A Full 2.4 - V

CC

Logic Low Input Bias Current (0V) IB_LO B 25 - - 5 µA
Logic High Input Bias Current (5.5V) IB_HI B 25 - - 50 µA
LNA_PD Power Enable Time LNA_Et B Full - - 10 µs
LNA_PD Power Disable Time LNA_Dt B Full - - 10 µs
RX_PE Power Enable Time PEt B Full - - 10 µs
RX_PE Power Disable Time PDt B Full - - 10 µs

NOTE:

2. Test Level A = 100% production tested, B = Typical or Limit based on characterization data, C = Design information, goal or condition.

V

4-4

Typical Application Circuit

V

CC

C3

RF INPUT

2300MHz

50Ω

C5

100pF

270pF

C6

270pF

C8

270pF

C7

7pF

LNA_V

LNA_OUT

LNA_V

RXM_V

C1

2.2µF

CC

GND

GND

CC

GND

LNA_IN

GND

CC

RX_PE

HFA3661

AMPLIFIER

DISABLE

-3dB/50Ω BPF

IMAGE REJECT

FILTER

C2
2200pF

LNA_PD

1

2

3

4

LNA

5

6

7

8

9

10

RXM

BIAS

20

GND

19

RXM_RF

18

C9

RXM_V

17

LO_BY

16

LO_IN

15

GND

14

BYP_CAP1

13

IF_OUT

12
BYP_CAP2

11

C14
1000pF

CC

C11

22pF

1000pF

L1

L3

C13

270pF

C4

L2

C15

270pF

27pF

C17

1000pF

100pF

C10

C12
7pF

C16

LO INPUT
2230MHz
50Ω

IF OUTPUT
70MHz
50Ω

RECEIVE

ENABLE

200pF

IF MATCH L1 L2 C15

FREQ = 70MHz 150nH 120nH 42-46pF

MIXER INP MATCH L3 C9
FREQ = 2 - 2.7GHz 3.3nH 4.7pF

L3, C9 OPTIMUM MATCH TO 2.4GHz

4-5