cpll58-2450-2450 ETC-unknow, cpll58-2450-2450 Datasheet - Page 5

• Manufacturer Part Number: cpll58-2450-2450
• Description: Pll/synthesizer
• Manufacturer: ETC-unknow

When using the CPLL58 family in a synthesizer application, all four 24 bit registers need to be written
into after power-up. After writing all four latches the first time, subsequent frequency step changes can
be accomplished by changing the N Counter Latch only.
Table II shows the details of the four 24 bit registers.
DB23
DB23
DB23
DB23
PRESCALER
PRESCALER
RESERVED
P2
P2
X
VALUE
VALUE
RESERVED
DB22
DB22
DB22
DB22
P1
P1
0
CRYSTEK
CORPORATION
M I C R O W A V E
A Division of Crystek Corporation
DB21
DB21
DB21
DB21
PD2
PD2
G1
0
DB20
DB20
DB20
DB20
CP16
CP16
LDP
B13
CURRENT SETTING2
CURRENT SETTING2
DB19
DB19
DB19
DB19
CP15
CP15
B12
TEST MODE
T2
BITS
DB18
DB18
DB18
DB18
CP14
CP14
B11
T1
ABP2
DB17
DB17
DB17
CP13
DB17
CP13
B10
CURRENT SETTING 1
CURRENT SETTING 1
BACKLASH
WIDTH
ANTI-
DB16
ABP1
DB16
DB16
CP12
DB16
CP12
B9
DB15
DB15
DB15
DB15
CP11
CP11
12730 Commonwealth Drive • Fort Myers, Florida 33913
R14
B8
13-BIT COUNTER
REFERENCE COUNTER LATCH
Table II. Latch Summary
DB14
DB14
DB14
DB14
R13
TC4
TC4
B7
INITIALIZATION LATCH
TIMER COUNTER CONTROL
TIMER COUNTER CONTROL
N COUNTER LATCH
FUNCTION LATCH
DB13
DB13
DB13
DB13
R12
TC3
TC3
B6
Phone: [phone] • 800-237-3061
Fax: [phone] • www.crystek.com
DB12
DB12
DB12
DB12
TC2
TC2
R11
B5
DB11
DB11
DB11
DB11
TC1
TC1
R10
B4
DB10
DB10
DB10
DB10
R9
B3
F5
F5
14-BIT REFERENCE COUNTER
DB9
DB9
DB9
DB9
R8
B2
F4
F4
DB8
DB8
DB8
DB8
R7
B1
F3
F3
Specifications subject to change without notice.
CPLL58-2450-2450
DB7
DB7
DB7
DB7
R6
A6
F2
F2
0.582" × 0.800" SMD
DB6
DB6
DB6
DB6
M3
M3
R5
A5
MUXOUT CONTROL
MUXOUT CONTROL
6-BIT COUNTER
DB5
DB5
DB5
DB5
M2
M2
R4
A4
DB4
DB4
DB4
DB4
M1
M1
R3
A3
DB3
DB3
DB3
PD1
DB3
PD1
R2
A2
DB2
DB2
DB2
DB2
A1
R1
F1
F1
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C2(0)
C2(0)
C2(1)
C2(1)
DB1
DB1
DB1
DB1
CONTROL
CONTROL
CONTROL
CONTROL
BITS
BITS
BITS
BITS
C1(0)
C1(1)
C1(0)
C1(1)
DB0
DB0
DB0
DB0