This is information on a product in full production.

June 2014

DocID026031 Rev 2

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BALF-NRF01D3

50 Ω nominal input / conjugate match balun to nRF51822-QFAAG0

/QFABB0 and nRF51422-QFAAE0 with integrated harmonic filter

Datasheet

Features

• Low insertion loss

• Low amplitude imbalance

• Low phase imbalance

• Coated Flip-Chip on Glass

Benefits

• Very low profile: < 560 µm after reflow

• High RF performance

• PCB space saving versus discrete solution

• BOM count reduction

• Efficient manufacturability

Applications

• 2.45 GHz balun with integrated matching

network

• Matching optimized for following chipsets:

nRF51822-QFAAG0/GC/FA, nRF51822-

QFABB0 and nRF51422-QFAAE0

Description

STMicroelectronics BALF-NRF01D3 is an

ultraminiature balun. The BALF-NRF01D3

integrates matching network in a monolithic glass

substrate. Matching impedance has been

customized for the nRF51822-QFAAG0/GC/FA,

nRF51822-QFABB0 and nRF51422-QFAAE0 RF

transceivers.

The BALF-NRF01D3 uses STMicroelectronics

IPD technology on non-conductive glass

substrate which optimize RF performances.

Figure 1. Pinout diagram (top view)

Lead-free Flip-Chip package

5 bumps

SE

DIFF

DIFF

VCC

GND

A

B

C

1

2

3

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