STW81101AT STMicroelectronics, STW81101AT Datasheet - Page 39

• 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
Table 23.
Serial interface address = 01h
[23]
[22]
[21]
[20]
[19]
[18]
[17]
[16]
[15]
[14]
[13]
[12]
[11]
[10]
Bit
[9]
[8]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
CAL_AUTOSTART_EN VCO calibration auto restart enable (0 = Off, 1 = On)
Bits at
OUTBUF_CTRL_EN
Name
01h and ST2
PD4
PD3
PD2
PD1
PD0
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
A4
A3
A2
A1
A0
Output buffer control mode enable (0 = Off, 1 = On)
Device functional modes:
0. Power down
1. Enable VCO A, output frequency divided by 2
2. Enable VCO B, output frequency divided by 2
3. Enable external VCO, output frequency divided by 2
4. Enable VCO A, output frequency divided by 4
5. Enable VCO B, output frequency divided by 4
6. Enable external VCO, output frequency divided by 4
7. Enable VCO A, direct output
8. Enable VCO B, direct output
9. Enable external VCO, direct output
B Counter Bits
A Counter bits
Register name = ST2
Description
SPI digital interface
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