參數(shù)資料
型號(hào): HD49235FS
廠商: Hitachi,Ltd.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processor for CD
中文描述: 數(shù)字信號(hào)處理器的CD
文件頁(yè)數(shù): 5/41頁(yè)
文件大?。?/td> 192K
代理商: HD49235FS
HD49235FS
Rev.2, Aug. 1995, page 5 of 41
Pin Description
(cont)
Pin
Polarity
No.
Symbol
Name
I/O*
Connection
Function
H
L
45
NC
No connection —
Open
Not connected
46
NC
No connection —
Open
Not connected
47
NC
No connection —
Open
Not connected
48
NC
No connection —
Open
Not connected
49
NC
No connection —
Open
Not connected
50
NC
No connection —
Open
Not connected
51
NC
No connection —
Open
Not connected
52
V
DD
(D)
NC
V
DD
(digital)
No connection —
Digital power supply
53
Open or V
DD
Not connected
54
PLLCK
PLL clock
O
PLL clock output monitor
55
MRST
Master reset
IU
Open or V
DD
Open or V
DD
External RC
circuit
Master reset of chip
Reset
56
TEST1
TEST 1
IU
Test pin
57
PDOUT2 Phase detect
out 2
TO
PLL auto-adjust phase
detector output
58
V
SS
(A)
AC
V
SS
(analog)
Amp
compensation
Analog ground
59
A
External RC
circuit
Amplifier phase compensation
pin
60
AMPO
Amp output
AO
External RC
circuit
PLL amplifier output
61
AMPM
Amp minus
input
AI
External RC
circuit
PLL amplifier inverting input
62
AMPP
Amp plus input AI
External RC
circuit
PLL amplifier non-inverting
input
63
V
DD
(A)
PDOUT1 Phase detect
out 1
V
DD
(analog)
Analog power supply
64
TO
External RC
circuit
PLL EFM phase detector
output
65
QDSEL
Q-data clock
select
IU
Q data readout mode
switching signal input
Internal
sync
External
sync
66
DSLCO
DSL control
output
O
External RC
circuit
EFM comparator slice level
control output
67
DSLCI
DSL control
input
AI
External RC
circuit
EFM comparator slice level
control input
68
EFMI
EFM signal
input
AI
EFM signal input
69
DEFCT
Defect
I
Servo IC
Defect detection signal input
Defect
70
TEST2
TEST 2
IU
Open or V
DD
Test pin
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