STW81101AT datasheet(38/42 Pages) STMICROELECTRONICS

38 / 42 page

Application information

STW81101

38/42

Figure 31.

Lumped output matching for divided by 4 output

(MATCH_LC_BAL_1G.dsn)

7.4

Evaluation Kit

Upon request an Evaluation Kit can be delivered. It includes:

●

Evaluation Board

●

GUI (Graphical User Interface) to program the device

●

Measured S parameters of the RF output

●

ADS2005 schematics providing guidelines for application board design

●

STWPLLSim software for PLL loop filter design and noise simulation

Three different Evaluation Kits are available, one optimized for 1GHz frequency range, one

for 2GHz frequency range and the last one for 4GHz range.

While ordering please specify the following order codes:

The three Evaluation Kits differ only regarding the output balun and the choke inductors of

the related Evaluation Board; each Evaluation Kit is provided with the needed components

(baluns and inductors) in order to easily adapt the output stage to a different frequency

range.

RFOUTP

RFOUTN

VCC

22nH

50 Ohm

10pF

22nH

10pF

1:1

VCC

25 Ohm

Table 21.

Order code of the evaluation kit

Part Number

Description

STW81101-EVB1G

1GHz frequency range - Divider by 4 output optimized

STW81101-EVB2G

2GHz frequency range - Divider by 2 output optimized

STW81101-EVB4G

4GHz frequency range - Direct output optimized

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