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50Ω SE-In – 100Ω DIFF-Out

Amplifier 3.0GHz to 4.2GHz

F1129MB

Datasheet

Description

The F1129MB is a single-ended input / differential output 3GHz to

4.2GMHz high gain RF amplifier. The combination of impedance

translation, high gain, high linearity, and low noise performance

makes this device an ideal amplifier for a variety of receiver

applications.

The F1129MB has been optimized to operate with a single 5V

power supply and a nominal 60mA of ICC. When operated at

3.55GHz, the F1129MB provides 19dB typical gain with 1.8dB

noise figure and +32dBm OIP3.

The F1129MB is pin-compatible with Renesas’ F1129xx family of

RF amplifiers, offering additional frequency and output impedance

options. Each F1129 variant is packaged in a 2 × 2 mm, 12-pin

DFN, with a 50Ω single-ended RF input and 50Ω or 100Ω

differential RF output impedances for ease of integration into the

signal-path.

F1129xx Base

Part Number

F1129LA

F1129LB

F1129MA

F1129MB

F1129HA

F1129HB

Differential Output Frequency Frequency

Impedance

Band

Coverage

50Ω

100Ω

Low

1.4GHz to

3.2GHz

50Ω

100Ω

Mid

3.0GHz to

4.2GHz

50Ω

100Ω

High

4.0GHz to

6.0GHz

Competitive Advantage

 High gain

 Excellent gain flatness over frequency

 Outstanding gain variance over temperature

 STBY feature

 Differential output to directly drive transceiver inputs

Typical Applications

 5G / Massive MIMO Base Stations

 4G TDD and FDD Base Stations

 2G/3G Base Stations

 Repeaters and DAS

 Point to Point Infrastructure

 Public Safety Infrastructure

 Military Handhelds

Features

 RF range: 3.0GHz to 4.2GHz

 Gain = 19dB at 3.55GHz

 Noise figure = 1.8dB at 3.55GHz

 OIP3 = +32dBm at 3.55GHz

 Output P1dB = +18dBm at 3.55GHz

 Gain variation over temperature = ±0.15dB typical

 50Ω single-ended input impedances

 100Ω differential output impedances

 3.3V or 5V power supply

 ICC = 60mA at 5V

 1.3mA standby current

 1.8V and 3.3V logic support for STBY control

 Operating temperature (TEP) range: -40°C to +115°C

 2 × 2 mm, 12-DFN package

Block Diagram

Figure 1. F1129MB Block Diagram

RF_IN

F1129MB

Bias

RF_OUT +

RF_OUT -

Bias and Control

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F1129MB Datasheet

Contents

Pin Assignments....................................................................................................................................................................................................4

Pin Descriptions.....................................................................................................................................................................................................4

Absolute Maximum Ratings...................................................................................................................................................................................5

Recommended Operating Conditions ...................................................................................................................................................................5

Electrical Characteristics - 5V Supply....................................................................................................................................................................6

Electrical Characteristics - 3.3V Supply.................................................................................................................................................................9

Thermal Characteristics.......................................................................................................................................................................................11

Typical Operating Conditions (TOC) ...................................................................................................................................................................11

Typical 5V Performance Characteristics..............................................................................................................................................................12

Typical 3.3V Performance Characteristics...........................................................................................................................................................14

Evaluation Kit Picture ..........................................................................................................................................................................................16

Evaluation Kit Circuit ...........................................................................................................................................................................................17

Application Information........................................................................................................................................................................................18

Power Supplies...........................................................................................................................................................................................18

Package Outline Drawings ..................................................................................................................................................................................19

Marking Diagram .................................................................................................................................................................................................19

Ordering Information............................................................................................................................................................................................19

Revision History...................................................................................................................................................................................................19

List of Figures

Figure 1. F1129MB Block Diagram.....................................................................................................................................................................1

Figure 2. F1129MB Pin Assignments for 2 × 2 × 0.75 mm 12-DFN Package – Top View .................................................................................4

Figure 3. Gain...................................................................................................................................................................................................12

Figure 4. Reverse Isolation...............................................................................................................................................................................12

Figure 5. Input Return Loss ..............................................................................................................................................................................12

Figure 6. Output Return Loss ...........................................................................................................................................................................12

Figure 7. Output IP3 .........................................................................................................................................................................................12

Figure 8. Output P1dB......................................................................................................................................................................................12

Figure 9. Noise Figure ......................................................................................................................................................................................13

Figure 10. Amplitude Imbalance .........................................................................................................................................................................13

Figure 11. Phase Imbalance...............................................................................................................................................................................13

Figure 12. CMR ..................................................................................................................................................................................................13

Figure 13. Gain...................................................................................................................................................................................................14

Figure 14. Reverse Isolation...............................................................................................................................................................................14

Figure 15. Input Return Loss ..............................................................................................................................................................................14

Figure 16. Output Return Loss ...........................................................................................................................................................................14

Figure 17. Output IP3 .........................................................................................................................................................................................14

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Figure 18. Output P1dB......................................................................................................................................................................................14

Figure 19. Noise Figure ......................................................................................................................................................................................15

Figure 20. Amplitude Imbalance .........................................................................................................................................................................15

Figure 21. Phase Imbalance...............................................................................................................................................................................15

Figure 22. CMR ..................................................................................................................................................................................................15

Figure 23. Top View............................................................................................................................................................................................16

Figure 24. Bottom View ......................................................................................................................................................................................16

Figure 25. Evaluation Kit Electrical Schematic ...................................................................................................................................................17

Figure 26. Control Pin Interface Schematic ........................................................................................................................................................18

List of Tables

Table 1. Pin Descriptions...................................................................................................................................................................................4

Table 2. Absolute Maximum Ratings.................................................................................................................................................................5

Table 3. Recommended Operating Conditions .................................................................................................................................................5

Table 4. Electrical Characteristics with a 5V Supply..........................................................................................................................................6

Table 5. Electrical Characteristics with a 3.3V Supply.......................................................................................................................................9

Table 6. Package Thermal Characteristics......................................................................................................................................................11

Table 7. Evaluation Kit Bill of Material (BOM) .................................................................................................................................................17

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Pin Assignments

Figure 2. F1129MB Pin Assignments for 2 × 2 × 0.75 mm 12-DFN Package – Top View

NC 1

RF_IN 2

NC 3

NC 4

10 NC

9 RF_OUT-

8 RF_OUT+

7 NC

Pin Descriptions

Table 1. Pin Descriptions

Number

1, 3, 4, 5, 7,

Name

RF_IN

STBY

RF_OUT+

RF_OUT-

VCC_1

VCC_2

EPAD

Description

No internal connection. It is highly recommended that these pins be connected to a ground via which is located

as close to each pin as possible.

Single ended RF Input. Must use external DC block.

Standby. If the pin is not connected or is logic LOW, the device will operate under its normal operating

condition. Apply a logic HIGH for STBY.

Differential RF Output +. Internally tied to ground. Recommended to use an external DC block to prevent

shorting of any DC voltage that may be present on the following RF stage.

Differential RF Output -. Internally tied to ground. Recommended to use an external DC block to prevent

shorting of any DC voltage that may be present on the following RF stage.

Connect to supply voltage via choke. An external bypass capacitor must be placed as close to the pin as

possible.

Connect to VCC. An external bypass capacitor must be placed as close to the pin as possible.

Exposed paddle. Internally connected to ground. Solder this exposed paddle to a printed circuit board (PCB)

pad that uses multiple ground vias to provide heat transfer out of the device into the PCB ground planes.

These multiple ground vias are also required to achieve the specified RF performance.

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F1129MB Datasheet

Absolute Maximum Ratings

The absolute maximum ratings are stress ratings only. Stresses greater than those listed below can cause permanent damage to the device.

Functional operation of the F1129MB at absolute maximum ratings is not implied. Exposure to absolute maximum rating conditions may affect

device reliability.

Table 2. Absolute Maximum Ratings

Parameter

Symbol

Minimum

Maximum

VCC_1, VCC_2 to GND

VCC -0.3

+5.5

STBY

VSTBY

-0.3

Lower of (5V,

VCC + 0.25V)

RF Input Power Applied for 24 Hours Maximum

(VCC applied, f = 3.6GHz, TEP = +115°C, and input / output VSWR = 1:1 based

on a 100Ω system.) [b]

PMAX24

+20

Storage Temperature Range

TSTOR

-65

+150

Lead Temperature (soldering, 10s)

TLEAD

+260

Electrostatic Discharge – HBM

VESDHBM

500

Electrostatic Discharge – CDM

VESDCDM

1500

[a] Exposure to these maximum RF levels can result in significant VCC current draw due to overdriving the amplifier stages.

[b] Tested using an external 2:1 transformer at the RF output.

Units

dBm

°C

Recommended Operating Conditions

Table 3. Recommended Operating Conditions

Parameter

Symbol

Condition

Minimum Typical Maximum Units

Power Supply Voltage [a]

VCC VCC pins

4.75 5.25 V

Operating Temperature Range

TEP Exposed paddle temperature

-40

+115 °C

Junction Temperature

TJMAX

150 °C

RF Frequency Range [b]

fRF

3.0 4.2 GHz

RF_IN Source Impedance

ZRF_IN

Single-ended

50 Ω

RF_OUT Load Impedance

ZRF_OUT Differential

100 Ω

[a] Although the device will operate with a minimum supply voltage of 3.15V, the performance of the device has been optimized to operate within

a supply voltage range of 4.75V to 5.25V.

[b] To optimize RF performance, different matching components might be used as described in the BOM.

April 29, 2020