參數(shù)資料
型號(hào): P32P4911A
廠商: NXP SEMICONDUCTORS
元件分類: 光電元器件
英文描述: PRML Read Channel with PR4, 8/9 ENDEC, FWR Servo
中文描述: 1 CHANNEL READ CHANNEL, PQFP100
封裝: 14 X 14 X 1.40 MM, PLASTIC, LQFP-100
文件頁(yè)數(shù): 36/63頁(yè)
文件大小: 257K
代理商: P32P4911A
1996 Jul 25
36
Philips Semiconductors
Product specification
PRML Read Channel with PR4,
8/9 ENDEC, FWR Servo
P32P4911A
Serial Port Register Definitions (Continued)
Complete Register ID String
A3
A2
A1
A0
S2
S1
S0
R/W
N Counter Register (N)
1
Bit 7
0
DSE
0
Defect Scan Enable
0 = normal operation
1 = defect scan mode enabled
N Counter
2 < N < 127
1
0
M Counter
2 < M < 255
F
TBG
= FREF * [(M+1)
÷
(N+1)]
1
1
Servo Mode Select
0 = RDS is active Low (normal operation)
1 = RDS is active High
Fvco (MHz) = 9/8 Data Rate = 1.143 * DR + 4.986 for
RR = 10 k
37 < DR < 127
1
0
1
0
0
94
Bits 6-0
N6-0
M Counter Register (M)
1
Bits 7-0
0
M7-0
0
1
0
0
A4H
Data Rate Register (DR)
1
Bits 7
0
SMS
0
1
0
0
B4H
Bits 6-0
DR6-0
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