CC2590EM Evaluation Module

c

RXTX

RF_N

RF_P

RXTX

RF_N

= PCBtraceinductor

CC2590

ANT

PAEN

EN

HGM

VDD

VDD

VDD

RF_P

RXTX

RF_N

R151

PAEN

EN

C111

L111

C161

C101/C102

C131/C132

HGM

RXTX

C2

LDB182G4520C-110

Balun

SMA

SMA

C112

CC2590

Figure 2. CC2590EM Evaluation Module

Table 2. List of Materials (See CC2590EM Reference Design)

DEVICE

FUNCTION

VALUE

L112

Part of antenna match.

1.5 nH: LQW15AN1N5B00 from Murata

C111

Part of antenna match.

0.5 pF, GRM1555C1HR50BZ01 from Murata

C112

DC block.

47 pF, GRM1555C1H470JZ01 from Murata

C161

Decoupling capacitor.

1 nF: GRM1555C1H102JA01 from Murata

27 pF || 1 nF. The smallest cap closest to CC2590.

Decoupling. Will affect PA resonance. See CC2590EM reference

C101/C102

27 pF: GRM1555C1H270JZ01 from Murata

design for placement.

1 nF: GRM1555C1H102JA01 from Murata

18 pF || 1 nF. The smallest cap closest to CC2590.

Decoupling. Will affect LNA resonance. See CC2590EM reference

C131/C132

18 pF: GRM1555C1H180JZ01 from Murata

design for placement.

1 nF: GRM1555C1H102JA01 from Murata

C2

Decoupling of external balun

1 nF: LWQ15AN1N5B00 from Murata

Transmission line. Will affect PA resonance. (simulated inductance:

See CC2590EM reference design.

0.87nH)

Transmission line: Length

≈ 40 mil, Width = 8 mil

TL131

Transmission line. Will affect LNA resonance. (simulated inductance:

See CC2590EM reference design.

1.64nH)

Transmission line: Length

≈ 100 mil, Width = 8 mil

R151

Bias resistor

4.3 k

Ω: RK73H1ETTP4301F from Koa

(1)

Transmission lines are measured from edge of pad of the CC2590 footprint to edge of pad of DC coupling capacitor. The length of the

transmission lines depend on the distance to the ground plane. If another PCB stack up is chosen the length of the transmission lines

needs to be adjusted.

PCB description: 4 layer PCB 1.6mm

Copper 1: 35

µm

Dielectric 1-2: 0.35 mm (e.g. 2x Prepreg 7628 AT05 47% Resin)

Copper 2: 18

µm

Dielectric 2-3: 0.76 mm (4 x 7628M 43% Resin)

Copper 3: 18

µm

Dielectric 3-4: 0.35 mm (e.g. 2x Prepreg 7628 AT05 47% Resin)

Copper 4: 35

µm

DE104iML or equivalent substrate (Resin contents around 45%, which gives Er=4.42 at 2.4GHz, TanD=0.016)

6

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