STW81102ATR STMicroelectronics, STW81102ATR Datasheet - Page 15

• Manufacturer Part Number: STW81102ATR
• Description: IC SYNTHESIZER MULTI RF 28VFQFPN
• Manufacturer: STMicroelectronics
• Type: Frequency Synthesizerr

Specifications of STW81102ATR

• Pll: Yes
• Input: Clock, Crystal
• Output: Clock, Crystal
• Number Of Circuits: 1
• Ratio - Input:output: 3:2
• Differential - Input:output: No/No
• Frequency - Max: 4.65GHz
• 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: 4.65GHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STW81102
3
Figure 3.
Figure 5.
Typical performance characteristics
Phase noise is measured with the Agilent E5052A Signal Source Analyzer. All closed-loop
measurements are done with F
properly set. The loop filter configuration is depicted in
diagram
1kHz offset, -145 dBc/Hz at10 kHz offset and -149.5 dBc/Hz of noise floor.
1.2° rms
VCO A (direct output) open loop
phase noise
VCO A (direct output) closed loop
phase noise at 3.6GHz
(F
I
CP
STEP
=3mA)
=200kHz; F
, and the reference clock signal is at 76.8 MHz with phase noise of -135 dBc/Hz at
PFD
=200kHz;
STEP
=200 kHz, with the F
Figure 4.
Figure 6.
1.4° rms
phase noise
phase noise at 4.3GHz
(F
I
VCO B (direct output) open loop
VCO B (direct output) closed loop
Typical performance characteristics
CP
STEP
Figure 36: Typical application
=4mA)
PFD
=200kHz; F
and charge pump current
PFD
=200kHz;
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