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

PRISM and PRISM logo are trademarks of Intersil Corporation.

P R E L I M I N A R Y

HFA3766

400MHz AGC Quadrature IF
Modulator/Demodulator

The HFA3766 is a highly integrated
baseband converter for quadrature
modulation applications. It features all
the necessary blocks for baseband
modulation and demodulation of I and

Q signals. It has a two stage integrated AGC IF amplifier with
82dB of voltage gain and 76dB of gain control range.
Baseband antialiasing is integrated into the design. Four
filter bandwidths are programmable via a two bit digital
control interface. In addition, these filters are continuously
tunable over a

20% frequency range via one external

resistor. For baseband modulation digital I and Q data are
delivered to the transmit section. To achieve broadband
operation, the Local Oscillator frequency input is required
to be twice the desired frequency of modulation and
demodulation. A selectable buffered divide by 2 LO output
and a stable reference voltage are provided for convenience
of the user. The device is housed in a thin 80 lead TQFP
package well suited for PCMCIA board applications.

Features

· Integrates all IF Transmit and AGC Receive Functions

· Broad Frequency Range . . . . . . . . . . 10MHz to 400MHz

· I/Q Amplitude and Phase Balance . . . . 0.2dB, 2 Degrees

· 5th Order Programmable

Low Pass Filter . . . . . . . . . . . . . . . . . . 2.2MHz to 17.6MHz

· 400MHz AGC Gain Strip . . . . . . . . . . . . . . . . . . . . . 82dB

· AGC Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75dB

· Low LO Drive Level . . . . . . . . . . . . . . . . . . . . . . . -15dBm

· Fast AGC Switching . . . . . . . . . . . . . . . . . . . . . . . . . . 1

· Fast Transmit-Receive Switching . . . . . . . . . . . . . . . . . . . 1

· Power Management/Standby Mode

· Single Supply 3.0V Operation

· Wireless Local Loop

· Wireless Local Area Networks

· PCMCIA Wireless Transceivers

· ISM Systems

· CDMA Radios

· PCS/Wireless PBX

Simplified

Ordering Information

PART NUMBER

TEMP.

RANGE (

PACKAGE

PKG. NO.

HFA3766IN

-40 to 85

80 Ld TQFP

Q80.14x14

HFA3766IN96

-40 to 85

Tape and Reel

AGC1_IN

LO_IN

MOD_TX_IF_OUT

GC1_OUT

GC2_IN

LPF_RXQ _OUT

AGC2_VAGC

LO_OUT

AGC1_VAGC

GC2_OUT

LPF_TUNE_1

LPF_RXI

LPF_RXQ

DEMOD_RXI

DEMOD_RXQ

LPF_TXQ

MOD_TXI

MOD_TXQ

LPF_TXI

DEMOD_IFIN

LPF_SEL0

LPF_SEL1

LPF_TXI_IN

LPF_TXQ_IN

2V REF

LPF_TUNE_0

LPF_RXI_OUT

LO_GND

AGC_SEl

U
X

/90

TX D OR A

January 1999

File Number

4328.1

Pinout

80 LEAD TQFP

TOP VIEW

Typical Application Diagram

For additional information on the PRISMTM Full Duplex Radio
Chip Set, call (407) 724-7800 to access Intersil's AnswerFAX
system. When prompted, key in the four-digit document
number (File #) of the data sheets you wish to receive.

The four-digit file numbers are shown in Typical Application
Diagram, and correspond to the appropriate circuit.

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

LPF_RX_PE

LPF_TX_PE

LPF_TXQ-

LPF_RXI+

GND

DEMOD_RXI-

GND

60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45

AGC2_V

AGC

GND
AGC2_V

AGC2_PE
AGC2_OUT+
AGC2_OUT-
AGC2_V

GND
GND
GND
LO_GND

DEMOD_IFIN-
DEMOD_IFIN+
MOD_V

LO_OUT
MOD_V

GC1_V

GND

GC1_V

GC1_PE

GC1_OUT+

GC1_OUT

GC1_V

GND

GC2_BYP-

63 62 61

GC2_IN-

GND

GC2_IN+

GC2_BYP+

37 38 39 40

MOD_TXI+

MOD_TXI-

MOD_TXQ+

MOD_TXQ-

LO_IN
DEMOD_RX_PE
MOD_TX_IF_OUT

MOD_TX_PE

44
43
42
41

17
18
19
20

LPF_TXQ+

LPF_TXI-

LPF_TXI+

LPF_RXQ-

LPF_RXQ+

LPF_RXI-

DEMOD_RXI+

DEMOD_RXQ+

DEMOD_RXQ-

AGC1_BYP+

AGC1_IN+

GND

AGC1_SEL

AGC1_IN-

AGC1_BYP-

GND
GND

LPF_V

2V REF

LPF_TXI_IN

LPF_TXQ_IN

LPF_RXI_OUT

LPF_RXQ_OUT

LPF_SEL1
LPF_SEL0

LPF_TUNE1
LPF_TUNE0

TX D OR A

LPF_BYP

QUAD IF MODEM

RFPA

HFA3925

HFA3766

TUNE/SELECT

HFA3524 (FILE# 4062)

/90

VCO

DUAL SYNTHESIZER

HFA3624

RF/IF

CONVERTER

(FILE# 4328)

(FILE# 4066)

(FILE# 4132)

PRISMTM CHIP SET FILE #4063

HFA3424 (NOTE)
(FILE# 4131)

RXQ

VCO

U
X

RXI

TX D OR A

VAGC

HFA3766

Block Diagram

NOTE: V

, GND and Bypass capacitors not shown.

GC1_IN+

GC1_IN-

LO_IN

IF_OUT

AGC1_OUT +

AGC1_OUT -

AGC2_IN-

AGC2_IN+

LPF_RXI_OUT

LO_OUT

GC1_V

AGC2_OUT +

AGC2_OUT -

LPF_TUNE1

LPF_RXI +

LPF_RXI -

LPF_RXQ +

LPF_RXQ -

DEMOD_RXI +

DEMOD_RXI -

DEMOD_RXQ +

DEMOD_RXQ -

DEDEMOD_IFIN+

DEMOD_IFIN -

LPF_SEL0

LPF_SEL1

LPF_TXI_IN

REF

2V REF

LPF_TUNE0

MOD_TX

LPF_RXQ_OUT

LPF_TXQ -

MOD _TXI +

MOD _TXQ -

LPF_TXQ +

MOD _TXQ +

MOD _TXI -

LPF_TXI -
LPF_TXI +

LPF_TXQ_IN

UP CONVER

TER

MUX_LPF

WN CONV

LO_GND

AGC1_PE

AGC2_PE

DEMOD_RX_PE

MOD_TX_PE

LPF_TX_PE

LPF_RX_PE

GC2_V

LPF_BYP

1.25V

(2XLO)

MUX

TX D OR A

1000p

10nH

33p

NO FIT

HFA3766

Pin Descriptions

PIN

SYMBOL

DESCRIPTION

AGC1_BYP+

DC feedback pin for AGC amplifier 1. Requires good decoupling and minimum wire length to a solid signal
ground.

AGC1_IN+

Non-inverting analog input of AGC amplifier 1.

GND

Ground. Connect to a solid ground plane.

AGC_SEL

This pin selects either differential or single ended input configuration for the first stage AGC. Ground this pin for
differential input configuration. Leave it floating for single ended input configuration.

AGC1_IN-

Inverting analog input of AGC amplifier 1.

AGC1_BYP-

DC feedback pin for AGC amplifier 1. Requires good decoupling and minimum wire length to a solid signal
ground.

7, 8

GND

Ground. Connect to a solid ground plane.

LPF_V

Supply pin for the Low pass filter. Use high quality decoupling capacitors right at the pin.

2V REF

Stable 2V reference voltage output for external applications. Loading must be higher than 10k

. A bypass

capacitor of at least 0.1

F is required.

LPF_BYP

Internal reference bypass pin. This is the common voltage (V

) used for the LPF digital thresholds. Requires

0.1

F decoupling capacitor.

LPF_TXI_IN

Low pass filter in phase (I) channel transmit input. Conventional or attenuated direct coupling is required for
digital inputs.

LPF_TXQ_IN

Low pass filter quadrature (Q) channel transmit input. Conventional or attenuated direct coupling is required for
digital inputs

LPF_RX_I

Low pass filter in phase (I) channel receive output. Requires AC coupling.

LPF_RX_Q

Low pass filter quadrature (Q) channel receive output. Requires AC coupling.

LPF_SEL1

Digital control input pins. Selects four programmed cut off frequencies for the receive channel. Tuning speed from
one cutoff to another is less than 1

SEL1

SEL0

CUTOFF FREQUENCY

SEl1

SEl0

CUTOFF FREQUENCY

2.2MHz

8.8MHz

4.4MHz

17.6MHz

LPF_SEL0

LPF_TUNE1

These two pins are used to fine tune the Low pass filter cutoff frequency. A resistor connected between the two
pins (R

TUNE

) will fine tune both transmit and receive filters. Refer to the tuning equation in the LPF AC

specifications.

LPF_TUNE0

TXD or TXA

Selects between digital or analog signals. Tie to GND for digital. Tie to V

for analog.

LPF_RX_PE

Digital input control pin to enable the LPF receive mode of operation. Enable logic level is High.

LPF_TX_PE

Digital input control pin to enable the LPF transmit mode of operation. Enable logic level is High.

LPF_TXQ-

Negative output of the transmit Low pass filter, quadrature channel. AC coupling is required. Normally connects
to the inverting input of the quadrature Modulator (Mod_TXQ-), pin 40.

LPF_TXQ+

Positive output of the transmit Low pass filter, quadrature channel. AC coupling is required. Normally connects
to the non inverting input of the quadrature Modulator (Mod_TXQ+), pin 39.

LPF_TXI-

Negative output of the transmit Low pass filter, in phase channel. AC coupling is required. Normally connects to
the inverting input of the in phase Modulator (Mod_TXI-), pin 38.

LPF_TXI+

Positive output of the transmit Low pass filter, in phase channel. AC coupling is required. Normally connects to
the non inverting input of the in phase Modulator (Mod_TXI+), pin 37.

LPF_RXQ-

Low pass filter inverting input of the receive quadrature channel. AC coupling is required. This input is normally
coupled to the negative output of the quadrature demodulator (Mod_RXQ-), pin 36.

HFA3766

LPF_RXQ+

Low pass filter non inverting input of the receive quadrature channel. AC coupling is required. This input is
normally coupled to the positive output of the quadrature demodulator (Mod_RXQ+), pin 35.

LPF_RXI-

Low pass filter inverting input of the receive in phase channel. AC coupling is required. This input is normally
coupled to the negative output of the in phase demodulator (Mod_RXI-), pin 34.

LPF_RXI+

Low pass filter non inverting input of the receive in phase channel. AC coupling is required. This input is normally
coupled to the positive output of the in phase demodulator (DEMOD_RXI-), pin 33.

31, 32

GND

Ground. Connect to a solid ground plane.

DEMOD_RXI+

In phase demodulator positive output. AC coupling is required. Normally connects to the non inverting input of
the Low pass filter (LPF_RXI+), pin 30.

DEMOD_RXI-

In phase demodulator negative output. AC coupling is required. Normally connects to the inverting input of the
Low pass filter (LPF_RXI-), pin 29.

DEMOD_RXQ+

Quadrature demodulator positive output. AC coupling is required. Normally connects to the non inverting input
of the Low pass filter (LPF_RXQ+), pin 28.

DEMOD_RXQ-

Quadrature demodulator negative output. AC coupling is required. Normally connects to the inverting input of
the Low pass filter (LPF_RXQ+), pin 27.

MOD_TXI+

In phase modulator non inverting input. AC coupling is required. This input is normally coupled to the Low pass
filter positive output (LPF_TXI+), pin 26.

MOD_TXI-

In phase modulator inverting input. AC coupling is required. This input is normally coupled to the Low pass filter
negative output (LPF_TXI-), pin 25.

MOD_TXQ+

Quadrature modulator non inverting input. AC coupling is required. This input is normally coupled to the Low
pass filter positive output (LPF_TXQ+), pin 24.

MOD_TXQ-

Quadrature modulator inverting input. AC coupling is required. This input is normally coupled to the Low pass
filter negative output (LPF_TXQ-), pin 23.

MOD_TX_PE

Digital input control to enable the Modulator section. Enable logic level is High for transmit.

MOD_TX_IF

_OUT

Modulator open collector output, single ended. Termination resistor to V

with a typical value of 316

DEMOD_RX

_PE

Digital input control to enable the demodulator section. Enable logic level is High.

LO_In

(2XLO)

Single ended local oscillator current input. Frequency of input signal must be twice the required demodulator LO
frequency. Input current is optimum at 200

RMS

. Input matching networks and filters can be designed for a

wide range of power and impedances at this port. Typical input impedance is 130

This pin requires AC

coupling.
NOTE: High second harmonic content input waveforms may degrade I/Q phase accuracy.

MOD_V

Supply pin for the Demodulator. Use high quality decoupling capacitors right at the pin.

LO_Out

Divide by 2 buffered output reference from "DEMOD_LO_in" input. Used for external applications where the de-
modulating carrier reference frequency is required. 50

single end driving capability. This output can be disabled

by use of pin 50. AC coupling is required.

MOD_V

Supply pin for the Demodulator. Use high quality decoupling capacitors right at the pin.

DEMOD_IFIN+

Demodulator, non-inverting input. Requires AC coupling.

DEMOD_IFIN-

Demodulator, inverting input. Requires AC coupling.

LO_GND

When grounded, this pin enables the LO buffer (DEMOD_LO_Out). When open (NC) it disables the LO buffer.

51, 52, 53

GND

Ground. Connect to a solid ground plane.

AGC2_V

Supply pin for the AGC amplifier 2. Use high quality decoupling capacitors right at the pin.

Pin Descriptions

(Continued)

PIN

SYMBOL

DESCRIPTION

HFA3766

AGC2_OUT-

Positive output of AGC amplifier 2. Requires AC coupling.

AGC2_OUT+

Negative output of AGC amplifier 2. Requires AC coupling.

AGC2_PE

Digital input control to enable the AGC amplifier 2. Enable logic level is High.

AGC2_V

Supply pin for the AGC amplifier 2. Use high quality decoupling capacitors right at the pin.

GND

Ground. Connect to a solid ground plane.

AGC2_V

AGC

AGC amplifier 2, AGC control input.

AGC2_BYP+

DC feedback pin for AGC amplifier 2. Requires good decoupling and minimum wire length to a solid signal
ground.

AGC2_IN+

Non-inverting analog input of AGC amplifier 2.

GND

Ground. Connect to a solid ground plane.

AGC2_IN-

Inverting input of AGC amplifier 2.

AGC2_BYP-

DC feedback pin for AGC amplifier 2. Requires good decoupling and minimum wire length to a solid signal
ground.

66 - 73

GND

Ground. Connect to a solid ground plane.

AGC1_V

AGC amplifier 1 supply pin. Use high quality decoupling capacitors right at the pin.

AGC1_OUT-

Negative output of AGC amplifier 1. Requires AC coupling.

AGC1_OUT+

Positive output of AGC amplifier 1. Requires AC coupling.

AGC1_PE

Digital input control to enable the AGC amplifier 1. Enable logic level is High.

AGC1_V

AGC amplifier 1 supply pin. Use high quality decoupling capacitors right at the pin.

GND

Ground. Connect to a solid ground plane.

AGC1_V

AGC

AGC amplifier 1, AGC control input.

Pin Descriptions

(Continued)

PIN

SYMBOL

DESCRIPTION

HFA3766

Absolute Maximum Ratings

Thermal Information

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.0V
Voltage on Any Other Pin. . . . . . . . . . . . . . . . . . -0.3V to V

+0.3V

Operating Conditions

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . -40

Thermal Resistance (Typical, Note 1)

(

C/W)

TQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package Power Dissipation at 70

TQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1W

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

Maximum Storage Temperature Range . . . . . . -65

150

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

(TQFP - Lead Tips Only)

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:

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

Cascaded DC Electrical Specifications

= 4.5V to 5.5V, Unless Otherwise Specified

PARAMETER

(NOTE 2)

TEST LEVEL

TEMP (

MIN

TYP

MAX

UNITS

Total Supply Current, at 5.5V

Full

112

Shutdown (Standby) Current at 5.5V

Full

0.8

1.5

All Digital Inputs V

(TTL Threshold for All V

)

Full

2.0

All Digital Inputs V

(TTL Threshold for All V

)

Full

-0.2

0.8

High Level Input Current at 5.5V V

for pins 16 and 21 with V

= 2.4V

Full

-200

-65

High Level Input Current at 5.5V V

for pins 16 and 21 with V

= 4.0V

Full

-150

-30

Low Level Input Current at 5.5V V

for pins 16 and 21 with V

= 0.8V

Full

-300

-95

High Level Input Current at 5.5V V

for pin 17, with V

= 2.4V

Full

200

High Level Input Current at 5.5V V

for pin 17, with V

= 4.0V

Full

300

Low Level Input Current at 5.5V V

for pin 17, with V

= 0.8V

Full

150

High Level Input Current at 5.5V V

for pin 43 with V

= 2.4V

Full

-20

High Level Input Current at 5.5V V

for pin 43 with V

= 4.0V

Full

110

300

Low Level Input Current at 5.5V V

for pin 43 with V

= 0.8V

Full

-20

0.1

AGC

Input for Max Gain (Note 5)

0.8

1.1

AGC

Input for Min Gain (Note 5)

2.1

2.2

AGC

Control Input Impedance (Per Stage) (Note 3)

410

AGC

Control Input Current (Per Stage) at Max Control Voltage

0.5

2.0

Full Range AGC Switching Large Signal Recovery (Note 4)

400

Full Range AGC Switching 1dB Settling Time (Note 4)

1.5

Power Down/Up Switching Speed (Note 4)

Reference Voltage

Full

1.85

2.0

2.15

Reference Voltage Variation Over Temperature

800

Reference Voltage Variation Over Supply Voltage

1.6

mV/V

Reference Voltage Minimum Load Resistance

NOTES:

2. A = Production Tested, B = Based on Characterization, C = By Design.

3. 1.2V reference source in series with 410

4. Determined by external components.

5. Measured at probe.

HFA3766

Cascaded AC Electrical Specifications, Demodulator Chain Performance

= 3.0V, LO = 560 MHz, and

IF = 280 MHz, Unless Otherwise Specified

PARAMETER

(NOTE 6)

TEST LEVEL

TEMP. (

MIN

TYP

MAX

UNITS

CASCADED CHARACTERISTICS

Cascaded Power Gain

TBD

Cascaded OIP3

TBD

Cascaded Noise Figure

TBD

Cascaded Output 1dB Compression

TBD

IF Demodulator I and Q Outputs Voltage Swing
(IF input Range of -70dBm to -30dBm)

Full

250

P-P

IF Demodulator I and Q Channels Output Drive Capability
(Z

OUT

= 50

) C

MAX

= 10pF, V

OUT

= 500mV

P-P

1.2

IF Demodulator I/Q Amplitude Balance, IFin = -50dBm at 50

Full

-1.0

+1.0

IF Demodulator I/Q Phase Balance, IFin = -50dBm at 50

Full

-4.0

+4.0

Degrees

IF Demodulator Output, P1dB

TBD

NOTES:

6. A = Production Tested, B = Based on Characterization, C = By Design.

7. Determined by external components.

AC Electrical Specifications, Modulator Performance

= 3.0V, Unless Otherwise Specified

PARAMETER

SYMBOL

(NOTE 8)

TEST LEVEL

TEMP

(

MIN

TYP

MAX

UNITS

IF Modulator I/Q Amplitude Balance (Note 9)

Mabal

-1.0

+1.0

IF Modulator I/Q Phase Balance (Note 9)

Mphbal

-4.0

+4.0

Degrees

IF Modulator SSB Output Power (Note 10)

Mssbpw

Full

-12

-7

-4

dBm

IF Modulator Side Band Suppression (Note 10)

Mssbss

Full

dBc

IF Mod Carrier Suppression (LO Buffer Enabled) (Note 10)

Mssbcs

Full

dBc

IF Mod Carrier Suppression (LO Buffer Disabled) (Note 10)

Mssbcs1

dBc

IF Modulator Output Noise Floor (Out of Band)

Moutn0

-132

dBm/Hz

IF Modulator I/Q 3dB Cutoff SEL0/1 = 2.2MHz (Note 11)

Msel1f

Full

1.8

2.2

2.5

MHz

IF Modulator I/Q 3dB Cutoff SEL0/1 = 4.4MHz (Note 11)

Msel2f

Full

3.6

4.4

5.0

MHz

IF Modulator I/Q 3dB Cutoff SEL0/1 = 8.8MHz (Note 11)

Msel3f

Full

7.3

8.8

9.8

MHz

IF Modulator I/Q 3dB Cutoff SEL0/1 = 17.6MHz (Note 11)

Msel4f

Full

14.6

17.6

19.6

MHz

IF Modulator Spread Spectrum Output Power (Note 12)

Mdsspw

-12

-7

-4

dBm

IF Modulator Side Lobe to Main Lobe Ratio, LPF = 8.8MHz
(Note 12)

Mdsssl

Full

NOTES:

8. A = Production Tested, B = Based on Characterization, C = By Design.

9. Data is characterized by DC levels applied to MOD TXI and Q pins for 4 quadrants with LO output as reference or indirectly by the SSB

characteristics.

10. Power at the fundamental SSB frequency of two 6MHz, 90 degrees apart square waves applied at TXI and TXQ inputs. V

= 3.0V,

= 0.5V. LPF selected to 8.8MHz cutoff.

11. Cutoff frequencies are specified for both modulator and demodulator as the filter bank is shared and multiplexed for Transmit and Receive. Data

is characterized by observing the attenuation of the fundamental of a square wave digital input swept at each channel separately. The IF output
is down converted by an external wideband mixer with a coherent LO input for each of quadrature signals separately.

12. Typical ratio characterization with R

TUNE

set to 7.7MHz, LPF selected for 8.8MHz. TXI and TXQ Digital Inputs at two independent and aligned

11M chip/s, 2

-1 sequence code signals.

HFA3766

AC Electrical Specifications, Cascaded AGC Stages Performance

= 3.0V

PARAMETER

(NOTE 13)

TEST LEVEL

TEMP. (

MIN

TYP

MAX

UNITS

Frequency Range (Note 14)

400

MHz

Voltage Gain at Max Gain (Note 15)
(V

AGC

= 0.8V, R

= 50

, R

= 500

)

Voltage Gain at Min Gain (V

AGC

= 2.1V, R

= 50

, R

= 500

)

Noise Figure at Max Gain, R

= 50

Output P 1dB at Min Gain, R

= 50

, dBm into R

= 500

-16

-13

dBm

Input P 1dB at Min Gain, R

= 50

-13

-10

dBm

Output IP3 at Min Gain, dBm into R

= 500

-5

-2

dBm

Input IP3 at Min Gain, R

= 50

-2

dBm

Group Delay, 20MHz Bandwidth

2.0

P-P

Single Ended Input Impedance, AGC_SEL = floating

Differential Input Impedance, AGC_SEL = ground

100

Differential Output Impedance

NOTES:

13. A = Production Tested, B = Based on Characterization, C = By Design.

14. Determined by external components.

15. Measured at probe.

AC Electrical Specifications, I/Q Down Converter Individual Performance

= 3.0V

PARAMETER

(NOTE 16)

TEST LEVEL

TEMP. (

MIN

TYP

MAX

UNITS

Quadrature Demodulator Input Frequency Range

400

MHz

Demodulator Baseband I/Q Frequency Range

MHz

Demodulator Voltage Gain at Frequency Range

Demodulator Differential Input Resistance

Demodulator Differential Input Capacitance

0.5

Demodulator Differential Output Level at 4K Load,
(Output Controlled By AGC Action)

400

500

560

P-P

Demodulator Amplitude Balance

-1.0

1.0

Demodulator Phase Balance at 286MHz

-4

Degrees

Demodulator Phase Balance at 400MHz

-4

Degrees

Demodulator Output 1dB Compression Voltage at 4K Load

1.25

P-P

NOTE:

16. A = Production Tested, B = Based on Characterization, C = By Design.

AC Electrical Specifications, LO Individual Performance

= 3.0V

PARAMETER

(NOTE 17)

TEST LEVEL

TEMP. (

MIN

TYP

MAX

UNITS

2XLO Input Frequency Range (2 X Input Range)

800

MHz

2XLO Input Current Range

200

300

RMS

2XLO Input Impedance

130

Buffered LO Output Voltage, Single Ended

100

P-P

HFA3766

Buffered LO Output Impedance

Quadrature IF Modulator Output Frequency Range

400

MHz

IF Modulator I/Q Input Frequency Range

MHz

IF Modulator Differential I/Q Max Input Voltage

2.25

P-P

IF Modulator Differential I/Q Input Impedance

IF Modulator Differential Input Capacitance

0.5

IF Modulator I/Q Amplitude Balance

-0.5

0.5

IF Modulator I/Q Phase Balance at 200MHz

-2

Degrees

IF Modulator I/Q Phase Balance at 400MHz

-4

Degrees

IF Modulator Output at SSB Into 50

, I and Q, 500mV

P-P

-22

-10.0

dBm

IF Modulator Carrier Suppression (LO Buffer Enabled)

dBc

IF Modulator Carrier Suppression (LO Buffer Disabled)

dBc

IF Modulator SSB Sideband Suppression at 200MHz

dBc

IF Modulator SSB Sideband Suppression at 400MHz

dBc

IF Output Level Compression Point

1.0

P-P

IF Modulator Intermodulation Suppression

dBc

NOTE:

17. A = Production Tested, B = Based on Characterization, C = By Design.

AC Electrical Specifications, RX 5TH Order LPF Cascaded Performance

= 3.0V

PARAMETER

(NOTE 18)

TEST LEVEL

TEMP. (

MIN

TYP

MAX

UNITS

RX LPF 3dB Bandwidth, Sel0 = 0, Sel1 = 0

1.8

2.20

2.4

MHz

RX LPF 3dB Bandwidth, Sel0 = 1, Sel1 = 0

3.6

4.40

4.8

MHz

RX LPF 3dB Bandwidth, Sel0 = 0, Sel1 = 1

7.4

8.80

9.6

MHz

RX LPF 3dB Bandwidth, Sel0 = 1, Sel1 = 1

14.8

17.60

19.2

MHz

RX LPF Sel0, Sel1 Tuning Speed

RX LPF 3dB Bandwidth Tuning

-20

+20

LPF Tune Nominal Resistance

787

RX LPF Voltage Gain

-1.0

1.0

RX LPF DC Output Voltage

1.3

TX/RX Offset Voltage

TBD

RX LPF Single Ended Output Voltage Swing at 2k

Load

(Controlled By AGC Action)

550

P-P

RX LPF Differential Input Impedance

RX I/Q Channel Amplitude Match

Full

-1

RX I/Q Channel Phase Match

Full

-4

Degrees

RX LPF Total Harmonic Distortion

LPF Output Impedance, Single-Ended

NOTE:

18. A = Production Tested, B = Based on Characterization, C = By Design D = Measured at Probe.

AC Electrical Specifications, LO Individual Performance

= 3.0V (Continued)

PARAMETER

(NOTE 17)

TEST LEVEL

TEMP. (

MIN

TYP

MAX

UNITS

HFA3766

All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.

Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with-
out notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and
reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.

For information regarding Intersil Corporation and its products, see web site www.intersil.com

Sales Office Headquarters

NORTH AMERICA
Intersil Corporation
P. O. Box 883, Mail Stop 53-204
Melbourne, FL 32902
TEL: (407) 724-7000
FAX: (407) 724-7240

EUROPE
Intersil SA
Mercure Center
100, Rue de la Fusee
1130 Brussels, Belgium
TEL: (32) 2.724.2111
FAX: (32) 2.724.22.05

ASIA
Intersil (Taiwan) Ltd.
7F-6, No. 101 Fu Hsing North Road
Taipei, Taiwan
Republic of China
TEL: (886) 2 2716 9310
FAX: (886) 2 2715 3029

TABLE 1. LOW PASS FILTER PROGRAMING AND TUNING INFORMATION

MODE

LPF SEL1

LPF SEL0

3dB

(NOMINAL R

TUNE

)

BW0

2.2MHz

BW1

4.4MHz

BW2

8.8MHz

BW3

17.6MHz

FREQUENCY

TUNE

20% Low

984

Nominal

787

20% High

656

FIGURE 1. TYPICAL f

3dB

vs R

TUNE

TUNED

3dB

3dBNOMINAL

787

TUNE

-----------------------------------------------------------

-30

-25

-20

-15

-10

-5

+10 +15 +20 +25 +30

+20%

-20%

PERCENT OF NOMINAL FREQ

UENCY

[(787 - R

TUNE

)/R

TUNE

] * 100%

HFA3766

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