SKY73121-11 Datasheet, PDF (8/22 Pages) Skyworks Solutions Inc. – 1805 - 1890 MHz High Performance VCO/Synthesizer With Integrated Switch

DATA SHEET • SKY73121-11 VCO/SYNTHESIZER
Table 8. DPLL Digital Control Bits
Serial Port Name
dpll_clk_dly(0)
dpll_clk_dly(1)
dpll_temp_comp(0)
dpll_temp_comp(1)
dpll_temp_comp(2)
dpll_temp_comp(3)
dpll_temp_comp(4)
dpll_temp_comp_en
dpll_ext_test(0)
dpll_ext_test(1)
dpll_ext_test(2)
dpll_ext_test(3)
dpll_ext_test(4)
dpll_ext_test(5)
dpll_ext_test(6)
dpll_ext_test(7)
dpll_flag_override
dpll_flag_value
Load Register Word 1 Bit
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Recommended Operating Value (Binary)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
DC Power On
Frequency Change
Hardware Auto Reset
Clear dpll_en
(Word 1, Bit [20])
Send Word 0, 1, 2, and 3
Set dpll_en
(Word 1, Bit [20])
Clear dpll_en
(Word 1, Bit [20])
Send Only Changed
Words
Set dpll_en
(Word 1, Bit [20])
Send Word 1
Send Word 1
Lock on New Frequency
Lock on New Frequency
S998
Figure 5. VCO Auto-Tuning Enable Process Flow Due to POR or Frequency Change
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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December 1, 2009 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 200888B