STW81101AT STMicroelectronics, STW81101AT Datasheet - Page 38

• 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

SPI digital interface
7.3
38/53
Bit tables
Table 22.
Serial interface address = 00h
[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]
Bits at 00h and ST1
SELEXTCAL
PSC_SEL
SERCAL
CPSEL2
CPSEL1
CPSEL0
INITCAL
PLL_A1
PLL_A0
Name
CAL4
CAL3
CAL2
CAL1
CAL0
R9
R8
R7
R6
R5
R4
R3
R2
R1
R0
Prescaler modulus select (0 for P=16, 1 for P=19)
Enable VCO calibration (see
Reference clock divider ratio
VCO amplitude control
Charge pump output current control
For test purposes only; must be set to 0
For test purposes only; must be set to 0
For test purposes only; must be set to 0
Register name = ST1
Description
Section
7.4)
STW81101