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
文件頁數(shù): 56/63頁
文件大?。?/td> 257K
代理商: P32P4911A
1996 Jul 25
56
Philips Semiconductors
Product specification
PRML Read Channel with PR4,
8/9 ENDEC, FWR Servo
P32P4911A
Write Mode - Byte-Wide
(Refer to Fig. 20)
Symbol
Parameter
Write Data Output
(Refer to Fig. 21)
Symbol
Read Mode - Nibble
Symbol
Test Conditions
Min.
Typ.
Nom.
Unit
t
RWC
Write clock rise time
0.8 to 2.0 V
C
L
< 15 pF
2.0 to 0.8 V
C
L
< 15 pF
10
ns
t
FWC
Write clock fall time
8
ns
t
SNRZ
t
HNRZ
NRZx set-up time
NRZx hold time
10
3
ns
ns
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
t
WD
Write data output position
accuracy
Write precomp = 0,
C
L
< 15 pF, T
TBG
= 1/F
TBG
T
TBG
- 0.5
T
TBG
+ 0.5 ns
t
RWD
t
FWD
Write data output rise time
Write data output fall time
20% to 80% points
80% to 20% points
3
3
ns
ns
Parameter
Test Conditions
Min.
Nom.
Max.
Unit
t
RCL
t
RCH
t
RRC
RCLK Low time
RCLK High time
Read clock rise time
C
L
< 15 pF
C
L
< 15 pF
0.8V to 2.4V
C
L
< 15 pF
2.4V to 0.8V
C
L
< 15 pF
5
5
ns
ns
ns
8
t
FRC
Read clock fall time
6
ns
t
NS
, t
NH
NRZx out set-up and hold
time
5.6
ns
Figure 20: Write Mode NRZ Interface Timing (byte-wide and nibble modes)
WCLK
NRZ0–7
NRZP
t
WC
t
RWC
2.0V
0.8V
1.5V
1.5V
1.5V
1.5V
t
SNRZ
t
HNRZ
t
FWC
2.0V
0.8V
t
WCH
t
WCL
“DT1”
1.5V
SM00028
0.8V
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