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CY22801KFXIT Datasheet(PDF) 7 Page - Cypress Semiconductor

Part # CY22801KFXIT
Description  Universal Programmable Clock Generator (UPCG) Integrated phase-locked loop (PLL)
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY22801KFXIT Datasheet(HTML) 7 Page - Cypress Semiconductor

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CY22801
Document #: 001-15571 Rev. *E
Page 7 of 23
Table 4. Summary Table – CY22801 Programmable Registers
Register
Description
D7
D6
D5
D4
D3
D2
D1
D0
09H
CLKOE control
0
0
CLKC
CLKA
0
CLKB
0
0
OCH
DIV1SRC mux and
DIV1N divider
DIV1SRC
DIV1N(6)
DIV1N(5)
DIV1N(4)
DIV1N(3)
DIV1N(2)
DIV1N(1)
DIV1N(0)
12H
Input crystal oscillator
drive control
FTAAd-
drSrc[1]
FTAAd-
drSrc[0]
XCapSrc
XDRV(1)
XDRV(0)
0
0
0
13H
Input load capacitor
control
CapLoad
(7)
CapLoad
(6)
CapLoad
(5)
CapLoad
(4)
CapLoad
(3)
CapLoad
(2)
CapLoad
(1)
CapLoad
(0)
40H
Charge pump and PB
counter
1
1
0
Pump(2)
Pump(1)
Pump(0)
PB(9)
PB(8)
41H
PB(7)
PB(6)
PB(5)
PB(4)
PB(3)
PB(2)
PB(1)
PB(0)
42H
PO counter, Q counter
PO
Q(6)
Q(5)
Q(4)
Q(3)
Q(2)
Q(1)
Q(0)
44H
Crosspoint switch
matrix control
11
11
11
CLKSRC2
for CLKB
CLKSRC1
for CLKB
45H
CLKSRC0
for CLKB
1
1
1
CLKSRC2
for CLKA
CLKSRC1
for CLKA
CLKSRC0
for CLKA
CLKSRC2
for CLKC
46H
CLKSRC1
for CLKC
CLKSRC0
for CLKC
11
111
1
47H
DIV2SRC mux and
DIV2N divider
DIV2SRC
DIV2N(6)
DIV2N(5)
DIV2N(4)
DIV2N(3)
DIV2N(2)
DIV2N(1)
DIV2N(0)
Table 5. Programmable Crystal Input Oscillator Gain Settings
Cap Register Settings
00H – 80H
80H – C0H
C0H – FFH
Effective Load Capacitance
(CapLoad)
6 pF to 12 pF
12 pF to 18 pF
18 pF to 30 pF
Crystal ESR
30
Ω
60
Ω
30
Ω
60
Ω
30
Ω
60
Ω
Crystal input
frequency
8 to 15 MHz
00
01011001
10
15 to 20 MHz
01
10011010
10
20 to 25 MHz
01
10101010
11
25 to 30 MHz
10
10
10
11
11
N/A
Table 6. Crystal Oscillator Gain Bit Locations and Values
Address
D7
D6
D5
D4
D3
D2
D1
D0
12H
001
XDRV(1)
XDRV(0)
000
Table 7. Programmable External Reference Input Oscillator Drive Settings
Reference Frequency
1 to 25 MHz
25 to 50 MHz
50 to 90 MHz
90 to 133 MHz
Drive Setting
00
01
10
11
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