AX8052F151 datasheet(30/34 Pages) ONSEMI

30 / 34 page

AX8052F151

www.onsemi.com

Antenna Interface Circuitry

The ANTP and ANTN pins provide RF input to the LNA

when AX8052F151 is in receiving mode, and RF output

from the PA when AX8052F151 is in transmitting mode. A

small antenna can be connected with an optional translation

network. The network must provide DC power to the PA and

LNA. A biasing to VREG is necessary.

Beside biasing and impedance matching, the proposed

networks also provide low pass filtering to limit spurious

emission.

Single−ended Antenna Interface

Figure 10. Structure of the Antenna Interface to 50 W Single−ended Equipment or Antenna

CC1

CB1

LT2

IC Antenna

Pins

VREG

LT1

LC2

LC1

CM1

LB1

CB2

LB2

CF1

CF2

LF1

CT1

CT2

CC2

CM2

50 W single−ended

equipment or

antenna

Optional filter stage

to suppress TX

harmonics

Table 25.

Frequency Band

LC1,2

[nH]

CC1,2

[pF]

LT1,2

[nH]

CT1,2

[pF]

CM1,2

[pF]

LB1,2

[nH]

CB1,2

[pF]

LF1

[nH]

CF1,2

[pF]

868 / 915 MHz

0.9

2.4

2.7

0 W

433 MHz

120

2.2

7.5

6.0

5.2

0 W

AX8052F151 Datasheet(PDF) 30 Page - ON Semiconductor

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