STW81101AT datasheet(36/42 Pages) STMICROELECTRONICS

tên linh kiện	STW81101AT

Giải thích chi tiết về linh kiện	Multi-band RF frequency synthesizer with integrated VCOs

PDF	42 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

Logo

36 / 42 page

Application information

STW81101

36/42

7.2

Divided by 2 Output

If the user's application does not require a balanced to unbalanced conversion, the output

matching reduces to the simple circuit shown below (Figure 27).

This solution can be easily used to provide one single ended output just terminating the

other output at 50

Ω with a 3dB power loss.

Figure 27.

Differential/single ended output network in the 1.65 - 2.2GHz range

(MATCH_LC_LUMP_2G_DIFF.dsn)

A first solution to combine the differential outputs is the lumped LC type balun tuned in the

2GHz band (Figure 28).

Figure 28.

LC lumped balun for divided by 2 output (MATCH_LC_LUMP_2G.dsn)

The same recommendation for the SMD components applies also for the divided by 2

output.

Another topology suitable to combine the two outputs for the divided by 2 frequencies is

represented in Figure 29.

RFOUTP

RFOUTN

VCC

22nH

50 Ohm

10pF

22nH

10pF

VCC

50 Ohm

RFOUTP

RFOUTN

VCC

3nH

5.5nH

1pF

1nH

2.8pF

50 Ohm

2nH

STW81101AT bảng dữ liệu(PDF) 36 Page - STMicroelectronics

STW81101AT bảng dữ liệu(HTML) 36 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

bảng dữ liệu tải về

Link URL