STW81101AT STMicroelectronics, STW81101AT Datasheet - Page 15

• Manufacturer Part Number: STW81101AT
• Description: IC SYNTHESIZER MULTI RF 28VFQFPN
• Manufacturer: STMicroelectronics
• Type: Frequency Synthesizer (RF)r

Specifications of STW81101AT

• 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
• Number Of Elements: 1
• Pll Input Freq (min): 10MHz
• Pll Input Freq (max): 200MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: VFQFPN
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Industrial
• Pin Count: 28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STW81101
3
Figure 3.
Figure 5.
1.3° rms
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, and the reference clock signal is at 76.8 MHz with phase noise of -135 dBc/Hz at 1
kHz offset, -145 dBc/Hz at 10 kHz offset and -149.5 dBc/Hz of noise floor.
VCO A (direct output) open loop
phase noise
VCO A (direct output) closed loop
phase noise at 3.6 GHz
(F
I
CP
STEP
=3.5 mA)
=200 kHz; F
PFD
=200 kHz;
STEP
=200 kHz, with the F
Figure 4.
Figure 6.
VCO B (direct output) open loop
phase noise
VCO B (direct output) closed loop
phase noise at 4.0GHz
(F
I
Typical performance characteristics
1.3° rms
CP
STEP
Figure 36: Typical application
=4 mA)
PFD
=200 kHz; F
and charge pump current
PFD
=200 kHz;
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