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): 55/63頁(yè)
文件大小: 257K
代理商: P32P4911A
1996 Jul 25
55
Philips Semiconductors
Product specification
PRML Read Channel with PR4,
8/9 ENDEC, FWR Servo
P32P4911A
DATA SEPARATOR CHARACTERISTICS
Unless otherwise specified, recommended operating conditions apply.
Read Mode - Byte-Wide
(Refer to Fig. 19)
Symbol
Parameter
Test Conditions
Min.
Nom.
Max.
Unit
t
RRC
Read clock rise time
0.8V to 2.4V
C
L
< 15 pF
2.4V to 0.8V
C
L
< 15 pF
Except during re-sync
Measured from rising edge
to rising edge of RCLK
Measured from rising edge
to rising edge of RCLK
10
ns
t
FRC
Read clock fall time
10
ns
t
RD
t
DC1
RCLK pulse width
RCLK re-sync period
at SFC and RG falling edge
RCLK re-sync period
at code boundary detect
NRZx out set-up and
hold time
4/9t
ORC
-5
t
ORC
4/9t
ORC
+5
t
ORC
+2TC
ns
ns
t
DC2
t
ORC
2t
ORC
ns
t
NS
, t
NH
20
ns
Figure 19: Byte-Wide Read Timing
9 t
C
4 t
C
t
RD
VCO CLK
RCLK
NRZ0–7
NRZP
SBD
t
ORC
t
FRC
t
RRC
2.4V
0.8V
2.4V
0.8V
1.5V
1.5V
1.5V
(SB2)
1.5V
(DT0)
t
NS
t
NH
1.5V
t
SBS
SM00004
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