MICROWAVE
A Division of Crystek Corporation
Table II shows the details of the four 24 bit registers.
Table II. Latch Summary
DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
X 0 0 LDP T2 T1 ABP2 ABP1 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 C2(0) C1(0)
LOCK DETECT
PRECISION
RESERVED
TEST MODE
BITS
ANTI-
BACKLASH
WIDTH
14-BIT REFERENCE COUNTER
CONTROL
BITS
REFERENCE COUNTER LATCH
DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
G1 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 A6 A5 A4 A3 A2 A1 C2(0) C1(1)
CP GAIN
RESERVED 13-BIT COUNTER 6-BIT COUNTER
CONTROL
BITS
N COUNTER LATCH
DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
P2 P1 PD2 CP16 CP15 CP14 CP13 CP12 CP11 TC4 TC3 TC2 TC1 F5 F4 F3 F2 M3 M2 M1 PD1 F1 C2(1) C1(0)
POWER-DOWN
2
PRESCALER
VALUE
CURRENT SETTING2 CURRENT SETTING 1
CONTROL
BITS
FUNCTION LATCH
TIMER COUNTER CONTROL
FASTLOCK
MODE
FASTLOCK
ENABLE
CP THREE-
STATE
PD POLARITY
COUNTER
RESET
POWER-DOWN
1
MUXOUT CONTROL
DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
P2 P1 PD2 CP16 CP15 CP14 CP13 CP12 CP11 TC4 TC3 TC2 TC1 F5 F4 F3 F2 M3 M2 M1 PD1 F1 C2(1) C1(1)
POWER-DOWN
2
PRESCALER
VALUE
CURRENT SETTING2 CURRENT SETTING 1
CONTROL
BITS
INITIALIZATION LATCH
TIMER COUNTER CONTROL
FASTLOCK
MODE
FASTLOCK
ENABLE
CP THREE-
STATE
PD POLARITY
COUNTER
RESET
POWER-DOWN
1
MUXOUT CONTROL
When using the CPLL66 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.
Specifications subject to change without notice.
0.60" SQ SMD
CPLL66-3160-3380
12730 Commonwealth Drive • Fort Myers, Florida 33913
Phone: 239-561-3311 • 800-237-3061
Fax: 239-561-1025 • www.crystek.com
CRYSTEK
CORPORATION
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