SP8861 Ver la hoja de datos (PDF) - Mitel Networks
Número de pieza
componentes Descripción
Fabricante
SP8861 Datasheet PDF : 13 Pages
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SP8861
PHASE
DETECTOR GAIN
CONTROL
(SEE TABLE 1)
MSB
LSB
G2 G1 218 217 216 215 214 213 212 211 210 29 28 27 26 25 24 23 22 21 20 C2 C1
PHASE
DETECTOR
SENSE BIT
(SEE TABLE 2)
15-BIT PROGRAMMABLE COUNTER (M COUNTER)
4-BIT
PROGRAMMABLE
COUNTER
(A COUNTER)
CONTROL
LOGIC
(SEE
TABLE 3)
Fig. 7a F1 or F2 word, bit allocation with 416/17 selected
PHASE
DETECTOR GAIN
CONTROL
(SEE TABLE 1)
MUST BE ZERO
MSB
G2 G1 217 216 215 214 213 212 211 210 29 28 27 26 25 24 23
LSB
0 22 21 20 C2 C1
PHASE
DETECTOR
SENSE BIT
(SEE TABLE 2)
15-BIT PROGRAMMABLE COUNTER (M COUNTER)
3-BIT
CONTROL
PROGRAMMABLE LOGIC
COUNTER
(SEE
(A COUNTER) TABLE 3)
Fig. 7b F1 or F2 word, bit allocation with 48/9 selected
DUAL MODULUS
N RATIO SELECT
0 = 416/17
1 = 48/9
MSB
PD1 PD2
LSB
212 211 210 29 28 27 26 25 24 23 22 21 20 C2 C1
PHASE
DETECTOR
BISTABLE
CONTROL
(SEE TABLE 4)
13-BIT PROGRAMMABLE COUNTER (R COUNTER)
Fig. 7c Reference word bit allocation
CONTROL
LOGIC
(SEE
TABLE 3)
DATA
DATA CLOCK
CHIP SELECT
F1 WORD
22 BITS 0 0
22 CLOCKS
F2 WORD
22 BITS 1 0
22 CLOCKS
REF WORD
22 BITS 1 1
22 CLOCKS
DATA LOADS ON FALLING EDGES
Fig. 7d Data load sequence
Fig. 7 Data format diagrams
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