參數(shù)資料
型號: 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): 9/63頁
文件大?。?/td> 257K
代理商: P32P4911A
1996 Jul 25
9
Philips Semiconductors
Product specification
PRML Read Channel with PR4,
8/9 ENDEC, FWR Servo
P32P4911A
Figure 2: AGC Timing Diagrams - Servo Mode
Servo mode gain recovery
SG
AGC
INPUT
AGC OUTPUT
100%
125%
ULTRA
FAST
DECAY
+
-
AGC LOWZ
FAST FILTER
OFFSET RECOVERY
AGC HOLD
SQUELCH
AGC FAST RECOVERY
(ATTACK & DECAY)
AGC ULTRA
FAST RECOVERY
(DECAY)
t
LZ
t
FR
t
LZ
t
LZ
FAST
ATTACK
t
FR
Ultra fast decay current is disabled when
signal is greater than 125% of nominal.
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