STW81100AT-1 STMicroelectronics, STW81100AT-1 Datasheet - Page 25

• Manufacturer Part Number: STW81100AT-1
• Description: IC SYNTHESIZER MULTI RF 28VFQFPN
• Manufacturer: STMicroelectronics
• Type: Frequency Synthesizerr

Specifications of STW81100AT-1

• Pll: Yes
• Input: Clock, Crystal
• Output: Clock, Crystal
• Number Of Circuits: 1
• Ratio - Input:output: 3:2
• Differential - Input:output: No/No
• Frequency - Max: 4.4GHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-VFQFN, 28-VFQFPN
• Frequency-max: 4.4GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

If the user prefers to use an RF balun it is possible to adopt the same topology depicted in
changing the balun and the resistor value (
range is the 1:1 Johanson 900BL15B050.
Figure 30. Lumped output matching for the divided by 4 output
9.4 Evaluation Kit
It is available upon request an Evaluation Kit including:
■
■
■
■
■
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
R F
RF
O U T P
O U T N
25 O hm
25 O hm
V
V
CC
CC
22nH
22nH
Figure 30
10pF
10pF
). The suggested balun for the 0.8 - 1.1GHz frequency
1:1
10pF
50 O hm
Figure 28
STW81100
25/29
, just