Data Sheet

ADRF5519

APPLICATIONS INFORMATION

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Rev. 0 | 14 of 16

To generate the evaluation PCB used in a typical application circuit,

use proper RF circuit design techniques. Signal lines at the RF port

must have a 50 Ω impedance, and the package ground leads and

the backside ground slug must connect directly to the ground plane.

Use 300 Ω series resistors on the BP-CHx and PD-CHAB digital

control pins for glitch and overcurrent protection. The ADRF5519-

EVALZ is available from Analog Devices, Inc., upon request.

1.9 GHZ OPERATION

The ADRF5519 can be used for applications at 1.9 GHz, tuned

from 1.7 GHz to 2.1 GHz, and 3 dB derated from Table 1 power

rating. Table 9 shows the typical specifications of the ADRF5519-

EVALZ tuned at 1.9 GHz.

Table 8 lists the required matching components. The ADRF5519-

EVALZ is assembled and shipped without any matching compo-

nents by default. The ADRF5519-EVALZ can be tuned for a

1.9 GHz application with a series RF trace and a parallel capacitor,

as shown in Table 8.

Table 8. Matching Components

Matching Components

Series RF Trace

Parallel Capacitor

ANT_x Pin

1 pF1

λ/8 at 1.9

 GHz

11.7 mm for

ADRF5519-EVALZ

TERM_x Pin

<1.5 mm

1.2 pF1

The simulated tuning performance at receive mode and transmit

mode is shown in Figure 27 and Figure 28.

Figure 27. ANT-CHx Return Loss with and Without Tuning at Receive Mode

Figure 28. ANT-CHx and TERM-CHx Return Loss with and Without Tuning at

Transmit Mode

Table 9. Typical Specifications at 1.9 GHz with Recommended Matching

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

GAIN1

Receive operation at 1.9 GHz

High Gain Mode

35

dB

Low Gain Mode

13

dB

GAIN FLATNESS

Receive operation from 1.7 GHz to 2.1 GHz

High Gain Mode

0.5

dB

Low Gain Mode

0.5

dB

NOISE FIGURE (NF)1

Receive operation at 1.9 GHz

High Gain Mode

0.9

dB

Low Gain Mode

0.9

dB

OUTPUT THIRD ORDER INTERCEPT POINT (OIP3)1

Receive operation, per tone at 1 MHz tone spacing at 1.9

GHz

High Gain Mode

Output power = 8 dBm per tone

30

dBm

Low Gain Mode

Output power = −10 dBm per tone

22

dBm

OUTPUT 1 dB COMPRESSION (OP1dB)

Receive operation at 1.9 GHz

High Gain Mode

17

dBm

Low Gain Mode

12

dBm

INSERTION LOSS1

Transmit operation at 1.9 GHz

0.55

dB