Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

1 1

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

1

LO

1

24

IRM

N/C

GND GND GND

GND

VG3

GNDGNDN/C GND

N/C

Q

I*

Q*

I

VD3

2

3

4

5

6

7 8 9 10 11 12

23 22 21 20 19

17

16

15

14

13

18X4

RF

VG4

VD2

VG2

VD1

VG1

GND

Ordering Information1,2

^ Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.

1. Reference Application Note M513 for reel size information. 2. All sample boards include 3 loose parts.

Functional Schematic

Pin Configuration3

3. MACOM recommends connecting all N/C (no connection) package pins to ground.

4. The exposed pad centered on the package bottom must be connected to RF, DC and thermal ground.

Part Number Package

MADC-011010-TR0500 500 Piece Reel

MADC-011010-001SMB Sample Evaluation board

Features

Integrates Image Reject (Balanced) Mixer, LO Buffer, LO Quadrupler and RF Buffer

13 dB Conversion Gain

3.8 dB Noise Figure

2 dBm Input Third Order Intercept (IIP3)

30 dBm Average Two-Tones Input Second Order Intercept (IIP2)

25 dBm Input Second Order Intercept (IIP2 IF/2)

25 dBc Image Rejection

12 dB RF and 15 dB LO Return Loss

Lead-Free 4 mm, 24 Lead QFN Package

RoHS^ Compliant

Description

The MADC-011010 is an integrated LSB/USB receiver that has a noise figure of 3.8 dB and a typical conversion gain of 13 dB. The device integrates a four stage LNA followed by an image rejection mixer, and includes an integrated LO quadrupler and buffer amplifier within a 4 mm QFN package. The I/Q and complementary I*/Q* mixer outputs are provided, and two external 180° hybrids and one external 90° hybrid are required to complete the image rejection function. The MADC-011010 is ideally suited for 38 GHz band point to point radios.

Each device is 100% RF tested to ensure performance compliance.

Pin No. Function Pin No. Function

1 N/C 13 VG1

2 Q 14 VD1

3 Q* 15 VG2

4 I 16 VD2

5 I* 17 VG4

6 N/C 18 VD3

7 GND 19 GND

8 N/C 20 VG3

9 GND 21 GND

10 GND 22 GND

11 RF 23 LO

12 GND 24 GND

25 Paddle4

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

2 2

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

2

Parameter Units Min. Typ. Max.

Frequency Range (RF) GHz 37 — 40

Frequency Range (LO) GHz 8.375 — 10.875

Frequency Range (IF) GHz DC — 3.5

LO Input Power (PLO) dBm — 4 —

USB Conversion Gain (IF = 2 GHz)

dB 10 13 —

USB Noise Figure (IF = 2 GHz)

dB — 3.8 5

Image Rejection dBc — 25 —

Input IP3 dBm — 2 —

Input IP2 (IF/2) dBm — 25 —

Average Two-Tones Input IP2 (ZIF) dBm — 30 —

RF Return Loss dB — 12 —

LO Return Loss dB — 15 —

IF Return Loss dB — 15 —

Current, Drain 1 (ID1) mA — 30 —

Current, Drain 2 (ID2) mA — 100 —

Current, Drain 3 (ID3) mA — 150 —

Gate Voltage (VG4) V — -2.5 —

Drain Voltage on each IF port V — 0.3 —

5. Apply gate voltages prior to drain voltages. Adjust VG1, VG2 and VG3 between -1.0 and -0.1 V to achieve specified drain current. Typical current 280 mA = 30 ( ID1) + 100 (ID2) + 150 (ID3) mA. Refer to App Note [1] for biasing details.

Electrical Specifications5:

LO = 4 dBm, TA = +25°C VD1 = VD2 = VD3 = 3 V, ID1 = 30 mA, ID2 = 100 mA, ID3 = 150 mA

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

3 3

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

3

6. Exceeding any one or combination of these limits may cause permanent damage to this device.

7. MACOM does not recommend sustained operation near these survivability limits.

8. Operating at nominal conditions with TJ ≤ +150°C will ensure

MTTF > 1 x 106 hours.

9. Junction Temperature (TJ) = TC + Өjc * (V * I) Typical thermal resistance (Өjc) = 44°C/W.

Handling Procedures

Please observe the following precautions to avoid damage:

Static Sensitivity

These electronic devices are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices.

Biasing Quickstart

Turn ON: Step 1: Turn on the fixed voltage on VG4 first. Step 2: Turn on VG1, VG2 and VG3 at approximately -1.0V . Step 3: Turn on IF voltages at the fixed voltage. Step 4: Turn on VD1, VD2 and VD3 at the fixed voltages, and adjust corresponding VG to get the required current levels.

Turn OFF: Reverse steps indicated in Turn ON sequence For further details please see App Note [1]

Absolute Maximum Ratings6,7

Parameter Absolute Maximum

Drain Voltage +4.3 V

Gate Bias Voltage (VG1,2,3) -1.5 V < VG < +0.3 V

Gate Bias Voltage (VG4) -4.0 V < VG < 0 V

Input Power 10 dBm

LO Input Power 13 dBm

Storage Temperature -55°C to +150°C

Operating Temperature -40°C to +85°C

Junction Temperature8,9 +150°C

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

4 4

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

4

Typical Performance Curves: LO = 4 dBm, RF = -20 dBm @ 50 MHz IF, PDC = 0.84 W

Conversion Gain

Conversion Gain @ 37 GHz

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

Con

vers

ion G

ain

(dB

)

Frequency (GHz)

-25

-15

-5

5

15

25

0 25 50 75 100 125 150 175 200

+25°C-40°C+85°C

Convers

ion

Gain

(dB

)

ID1+ID2 (mA)

Conversion Gain, LO Power swept

Conversion Gain @ 40 GHz

Conversion Gain, IF = 2 GHz Conversion Gain, IF = 3.5 GHz

-25

-15

-5

5

15

25

0 25 50 75 100 125 150 175 200

+25°C-40°C+85°C

Convers

ion

Gain

(dB

)

ID1+ID2 (mA)

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

Con

vers

ion G

ain

(dB

)

Frequency (GHz)

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

Con

vers

ion G

ain

(dB

)

Frequency (GHz)

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

PLO = -4 dBmPLO = -2 dBmPLO = 0 dBmPLO = 2 dBmPLO = 4 dBmPLO = 6 dBmPLO = 8 dBm

Con

vers

ion G

ain

(dB

)

Frequency (GHz)

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

5 5

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

5

Input IP3 @ 37 GHz

Input IP3

Typical Performance Curves: LO = 4 dBm, RF = -20 dBm @ 50 MHz IF, PDC = 0.84 W

-5.0

-2.5

0.0

2.5

5.0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

IIP

3 (

dB

m)

Frequency (GHz)

-5.0

-2.5

0.0

2.5

5.0

0 25 50 75 100 125 150 175 200

+25°C-40°C+85°C

IIP

3 (

dB

m)

ID1+ID2 (mA)

-5.0

-2.5

0.0

2.5

5.0

0 25 50 75 100 125 150 175 200

+25°C-40°C+85°C

IIP

3 (

dB

m)

ID1+ID2 (mA)

0

1

2

3

4

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

IIP

3 (

dB

m)

Frequency (GHz)

0

1

2

3

4

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

IIP

3 (

dB

m)

Frequency (GHz)

-5.0

-2.5

0.0

2.5

5.0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

PLO = -4 dBmPLO = -2 dBmPLO = 0 dBmPLO = 2 dBmPLO = 4 dBmPLO = 6 dBmPLO = 8 dBm

IIP

3 (

dB

m)

Frequency (GHz)

Input IP3, LO Power swept

Input IP3 @ 40 GHz

Input IP3, IF = 2 GHz Input IP3, IF = 3.5 GHz

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

6 6

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

6

Typical Performance Curves: LO = 4 dBm, RF = -20 dBm @ 50 MHz IF, PDC = 0.84 W

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

OIP

3 (

dB

m)

Frequency (GHz)

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

OIP

3 (

dB

m)

Frequency (GHz)

0

5

10

15

20

0 25 50 75 100 125 150 175 200

+25°C-40°C+85°C

OIP

3 (

dB

m)

ID1+ID2 (mA)

0

5

10

15

20

0 25 50 75 100 125 150 175 200

+25°C-40°C+85°C

OIP

3 (

dB

m)

ID1+ID2 (mA)

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

OIP

3 (

dB

m)

Frequency (GHz)

0

5

10

15

20

37.0 37.5 38.0 38.5 39.0 39.5 40.0

PLO = -4 dBmPLO = -2 dBmPLO = 0 dBmPLO = 2 dBmPLO = 4 dBmPLO = 6 dBmPLO = 8 dBm

OIP

3 (

dB

m)

Frequency (GHz)

Output IP3 Output IP3, LO Power swept

Output IP3 @ 37 GHz Output IP3 @ 40 GHz

Output IP3, IF = 2 GHz Output IP3, IF = 3.5 GHz

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

7 7

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

7

Noise Figure, IF = 2 GHz

Noise Figure, LO Power swept

Typical Performance Curves: LO = 4 dBm, IF = 150 MHz, PDC = 0.84 W

Noise Figure, IF = 3.5 GHz

2

3

4

5

6

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

Nois

e F

igure

(dB

)

Frequency (GHz)

2

3

4

5

6

37.0 37.5 38.0 38.5 39.0 39.5 40.0

PLO = 0 dBmPLO = 2 dBmPLO = 4 dBmPLO = 6 dBmPLO = 8 dBm

Nois

e F

igure

(dB

)

Frequency (GHz)

2

3

4

5

6

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB @ +25°C

USB @ +25°C

LSB @ +85°C

USB @ +85°C

Nois

e F

igure

(dB

)

Frequency (GHz)

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

8 8

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

8

Typical Performance Curves: LO = 4 dBm, IF = 150 MHz, PDC = 0.84 W

Noise Figure @ 37 GHz Noise Figure @ 40 GHz

Noise Figure @ 37 GHz Noise Figure @ 40 GHz

2

3

4

5

6

60 80 100 120 140 160 180 200

VD3 = 3.0 VVD3 = 3.5 VVD3 = 4.0 V

Nois

e F

igure

(dB

)

ID3 (mA)

2

3

4

5

6

0 10 20 30 40 50 60

VD1 = 3.0 VVD1 = 3.5 VVD1 = 4.0 V

Nois

e F

igure

(dB

)

ID1 (mA)

2

3

4

5

6

0 10 20 30 40 50 60

VD1 = 3.0 VVD1 = 3.5 VVD1 = 4.0 V

Nois

e F

igure

(dB

)ID1 (mA)

2

3

4

5

6

60 80 100 120 140 160 180 200

VD3 = 3.0 VVD3 = 3.5 VVD3 = 4.0 V

Nois

e F

igure

(dB

)

ID3 (mA)

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

9 9

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

9

Image Rejection

Typical Performance Curves: LO = 4 dBm, RF = -20 dBm @ 50 MHz IF, PDC = 0.84 W

Image Rejection, IF = 2 GHz

-40

-30

-20

-10

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

Ima

ge

Re

jection

(dB

c)

Frequency (GHz)

-40

-30

-20

-10

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

Ima

ge

Re

jection

(dB

c)

Frequency (GHz)

-40

-30

-20

-10

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

Ima

ge

Re

jection

(dB

c)

Frequency (GHz)

Image Rejection, LO Power swept

-40

-30

-20

-10

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

PLO = -4 dBmPLO = -2 dBmPLO = 0 dBmPLO = 2 dBmPLO = 4 dBmPLO = 6 dBmPLO = 8 dBm

Ima

ge

Re

jection

(dB

c)

Frequency (GHz)

Image Rejection, IF = 3.5 GHz

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

10 10

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

10

POUT vs. PIN, IF = 2 GHz

POUT vs. PIN

POUT vs. PIN, IF = 3.5 GHz

P1dB, Input & Output, IF = 2 GHz

P1dB, Input & Output, IF = 3.5 GHz

Typical Performance Curves: LO = 4 dBm, RF = -20 dBm @ 50 MHz IF, PDC = 0.84 W

-10

-5

0

5

10

-20 -16 -12 -8 -4 0

37.0 GHz38.5 GHz40.0 GHz

Ou

tput

Po

we

r (d

Bm

)

Input Power (dBm)

-10

-5

0

5

10

37.0 37.5 38.0 38.5 39.0 39.5 40.0

IP1dB

OP1dB

P1

dB

(dB

m)

Frequency (GHz)

-10

-5

0

5

10

-20 -16 -12 -8 -4 0

37.0 GHz, LSB38.5 GHz, LSB40.0 GHz, LSB37.0 GHz, USB38.5 GHz, USB40.0 GHz, USB

Ou

tput

Po

we

r (d

Bm

)

Input Power (dBm)

-10

-5

0

5

10

37.0 37.5 38.0 38.5 39.0 39.5 40.0

IP1dB, LSBIP1dB, USBOP1dB, LSBOP1dB, USB

Ou

tput

Po

we

r (d

Bm

)

Frequency (GHz)

-10

-5

0

5

10

37.0 37.5 38.0 38.5 39.0 39.5 40.0

IP1dB, LSBIP1dB, USBOP1dB, LSBOP1dB, USB

Ou

tput

Po

we

r (d

Bm

)

Frequency (GHz)

-10

-5

0

5

10

-20 -16 -12 -8 -4 0

37.0 GHz, LSB38.5 GHz, LSB40.0 GHz, LSB37.0 GHz, USB38.5 GHz, USB40.0 GHz, USB

Ou

tput

Po

we

r (d

Bm

)

Input Power (dBm)

P1dB, Input & Output

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

11 11

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

11

Input IP2 (IF/2), IF = 2 GHz

Two-Tones Input IP2 @ I - I* Ports or Q - Q* Ports Average Two-Tones IIP2 @ I - I* Ports or Q - Q* Ports

Input IP2 (IF/2), IF = 3.5 GHz

Typical Performance Curves: LO = 4 dBm, IF1 = 41 MHz, IF2 = 53 MHz, PDC = 0.84 W

0

10

20

30

40

50

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

IIP

2 (

IF/2

) (d

Bm

)

Frequency (GHz)

0

10

20

30

40

50

37.0 37.5 38.0 38.5 39.0 39.5 40.0

LSB

USB

IIP

2 (

IF/2

) (d

Bm

)

Frequency (GHz)

0

10

20

30

40

50

60

-35 -30 -25 -20 -15

IF = I

IF = Q

IIP

2 @

I o

r Q

po

rts (

dB

m)

Input Power (dBm)

0

10

20

30

40

50

60

-35 -30 -25 -20 -15

IIP2

Ave

rag

e I

IP2

@ I

& Q

po

rts (

dB

m)

Input Power (dBm)

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

12 12

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

12

Typical Performance Curves: LO = 4 dBm, PDC = 0.84 W

1xLO Leakage @ RF Port 1xLO Leakage @ RF Port, LO Power swept

3xLO Leakage @ RF Port

2xLO Leakage @ RF Port, LO Power swept 2xLO Leakage @ RF Port

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

1xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

2xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

3xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

-4 dBm0 dBm4 dBm8 dBm

1xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

-4 dBm0 dBm4 dBm8 dBm

2xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

-4 dBm0 dBm4 dBm8 dBm

3xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

3xLO Leakage @ RF Port, LO Power swept

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

13 13

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

13

Typical Performance Curves: LO = 4 dBm, PDC = 0.84 W

4xLO Leakage @ RF Port

5xLO Leakage @ RF Port

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

4xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

+25°C-40°C+85°C

5xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

-4 dBm0 dBm4 dBm8 dBm

4xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

-100

-80

-60

-40

-20

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

-4 dBm0 dBm4 dBm8 dBm

5xLO

Po

we

r @

RF

Po

rt (

dB

m)

Frequency (GHz)

4xLO Leakage @ RF Port, LO Power swept

5xLO Leakage @ RF Port, LO Power swept

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

14 14

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

14

Typical Performance Curves:

IF Return Loss

LO Return Loss

-25

-20

-15

-10

-5

0

0 2 4 6 8

IF = I*IF = IIF = QIF = Q*

IF R

etu

rn L

oss (

dB

)

Frequency (GHz)

-25

-20

-15

-10

-5

0

37.0 37.5 38.0 38.5 39.0 39.5 40.0

RF

Retu

rn L

oss (

dB

)

Frequency (GHz)

-25

-20

-15

-10

-5

0

8 9 10 11 12

LO

Retu

rn L

oss (

dB

)

Frequency (GHz)

RF Return Loss

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

15 15

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

15

App Note [1] Biasing

MADC-011010 is operated by biasing VD1, VD2 and VD3 at +3.0 V. The corresponding drain currents are set to 30 mA, 100 mA and 150 mA respectively. VG4 requires a fixed voltage bias of nominally -2.5 V and all IF to be biased at +0.3 V. It is recommended to use active bias on VG1, VG2, VG3 to keep the currents in VD1, VD2, and VD3 constant, in order to maintain the best performance over temperature. Depending on the supply voltages available and the power dissipation constraints, the bias circuits may include a single transistor or a low power operational amplifier, with a low value resistor in series with the drain supply to sense the current. Make sure to sequence the applied voltage to ensure negative gate bias is available before applying the positive drain supply.

App Note [2] IF Outputs

For highest gain, best image rejection and lowest noise figure all 4 IF ports should be used. I/I* and Q/Q* will be combined through two 180° hybrid couplers generating inphase and quadrature phase components. Inphase and quadrature signals then need to be combined through 90° hybrid combiner to create IF output. See App Note [4] for IF bias.

IF Output

I Bias

Q Bias

Q* Bias

I* Bias

LO

1

24

IRM

N/C

GND GND GND

GND

VG3

GNDGNDN/C GND

N/C

Q

I*

Q*

I

VD3

2

3

4

5

6

7 8 9 10 11 12

23 22 21 20 19

17

16

15

14

13

18X4

RF

VG4

VD2

VG2

VD1

VG1

GND

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

16 16

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

16

App Note [3] Board Layout

As shown in the recommended board layout, it is recommended to provide 100 pF decoupling capacitors as close to the bias pins as possible. Additional 10 nF and 1 µF on each of the bias lines are recommended placed a distance further away.

Recommended Board Layout

App Note [4] IF Bias

To obtain optimum OIP3 performance, it is required to apply DC bias of + 0.3 V on each of the IF inputs (I, Q, I*, Q*). This can be implemented by adding simple bias tees to each of the four IF ports (see drawing from App Note [2] for the bias tees location). The diagram below shows a typical bias tee design used. Before applying a

IF Bias

10 nH

1 µF

15 pF

IF OUT

(from 180º hybrid or

terminated to 50 Ω)

to MADC-011010

Typical Configuration

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

17 17

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

17

Lead-Free 4 mm 24-Lead PQFN †

† Reference Application Note S2083 for lead-free solder reflow recommendations.

Meets JEDEC moisture sensitivity level 1 requirements. Plating is NiPdAuAg over copper.

Down Converter 37 - 40 GHz

Rev. V3

MADC-011010

18 18

MACOM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. Visit www.macom.com for additional data sheets and product information.

For further information and support please visit: https://www.macom.com/support

DC-0006166

18

MACOM Technology Solutions Inc. All rights reserved. Information in this document is provided in connection with MACOM Technology Solutions Inc ("MACOM")products. These materials are provided by MACOM as a service to its customers and may be used for informational purposes only. Except as provided in MACOM's Terms and Conditions of Sale for such products or in any separate agreement related to this document, MACOM assumes no liability whatsoever. MACOM assumes no responsibility for errors or omissions in these materials. MACOM may make changes to specifications and product descriptions at any time, without notice. MACOM makes no commitment to update the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to its specifications and product descriptions. No license, express or implied, by estoppels or otherwise, to any intellectual property rights is granted by this document. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING TO SALE AND/OR USE OF MACOM PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, CONSEQUENTIAL OR INCIDENTAL DAMAGES, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. MACOM FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. MACOM SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS, WHICH MAY RESULT FROM THE USE OF THESE MATERIALS. MACOM products are not intended for use in medical, lifesaving or life sustaining applications. MACOM customers using or selling MACOM products for use in such applications do so at their own risk and agree to fully indemnify MACOM for any damages resulting from such improper use or sale.