HMC701LP6CE Datasheet, PDF (36/46 Pages) Hittite Microwave Corporation – 8 GHz 16-Bit Fractional-N Synthesizer

v03.0709
HMC701LP6CE
8 GHz 16-Bit Fractional-N Synthesizer
Table 10. VCO R03 (Temperature & Gain Control Register)
Bit
Name
Default
Description
[4:0] Reserved
5
x
Reserved
[6:5]
Temp Compensation Offset Control
(MSB: LSB)
2
0: Reduce Tuning voltage 50mV
1
1: Use default Tuning voltage
2: Increase Tuning voltage 50mV
3: Increase Tuning voltage 100mV
[8:7] PLL Buffer Gain Control (MSB: LSB)
2
0: Min Gain
1
1: Next to Min Gain
2: Next to Max Gain
3: Max Gain
REGISTER MAP
Reg 00h Chip ID (Read Only) Register
Bit
Type
Name
Width
[23:0]
Ro
Chip ID
24
Default
581502
Chip ID
Description
Table 11. Reg 00h Strobe (Write Only) Register
Bit
Type
Name
Width
Default
0
STR global_swrst_regs
1
0
1
STR global_swrst_dig
1
0
2
STR mcnt_resynch
1
0
3
STR tsens_spi_strobe
1
0
Description
Strobe to soft reset the SPI registers
Strobe to soft reset the rest of digital
Reserved
Strobe to clock the temp measurement on
demand
11
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