PE3291EK PEREGRINE [Peregrine Semiconductor Corp.], PE3291EK Datasheet - Page 11

• Manufacturer Part Number: PE3291EK
• Manufacturer: PEREGRINE [Peregrine Semiconductor Corp.]

PE3291
Product Specification
Phase Comparator Characteristics
PLL1 has the timing relationships shown below for f
directs the internal PLL1 charge pump to source current and DOWN1 directs the PLL1 internal charge pump
to sink current. If C
PLL2 has the timing relationships shown below for f
directs the internal PLL2 charge pump to source current and DOWN2 directs the PLL2 internal charge pump
to sink current. If C
Figure 10. Phase Comparator Timing Diagram
Document No. 70-0009-04 │ www.psemi.com
DOWN1 (2)
Note 1: f
(Note 1)
(Note 1)
(Note 1)
UP1 (2)
LD1 (2)
f
f
p
c
1 (2)
1 (2)
c
1(2), f
11
21
p
1(2), and LD1(2) are accessible via the f
= LOW, UP1 and DOWN1 are interchanged.
= LOW, UP2 and DOWN2 are interchanged.
f
c
leads f
p
f
c
= f
p
f
c
o
LD pin per programming in Table 11.
lags f
c
c
1, f
2, f
p
p
p
1, LD1, UP1, and DOWN1. When C
2, LD2, UP2, and DOWN2. When C
f
c
lags f
©2005 Peregrine Semiconductor Corp. All rights reserved.
p
f
c
lags f
p
11
21
= HIGH, UP1
= HIGH, UP2
Page 11 of 15