STW81100AT-1 STMicroelectronics, STW81100AT-1 Datasheet - Page 26

• 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

STW81100
10 Application diagram
Figure 31. Application diagram
Notes: 1. Output matching component values for 2GHz output; see Application Information section for further information.
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RF Out
2. ADD0, ADD1, ADD2 and EXT_PD can be hard wired directly on the board.
3. Loop filter values for f
1n
1n
10p
10p
22p
22p
VDD
loop filter
VDD
1
VDD
VDD
1
10µ
10µ
51
51
1
1
PFD
22n
22n
= 400KHz and I
680p
VDD_VCO2
OUTBUFP
OUTBUFN
VDD_DIV4
VDD_VCO1
VDD_DIV2
VDD_OUTBUF
100n
CP
= 4mA
from µ−controller
3.6k
STW81100
220p
4.7k
1n
22p
VDD
VDD_BUFVCO
EXTVCO_INN
EXTVCO_INP
1
VDD_PLL
10µ
REF_IN
ATPGON
TEST2
to µ−controller
1n
1n
1n
22p
22p
1.8n
22p
VDD
VDD
VDD
2
2
2
10µ
10µ
10µ
ref clk
51