Advertisement
SP3721A (ME: U2)
DVDRFP
DVDRFN
SP3721A Terminal Function
Pin No.
Pin Name
1, 2
DVDREP , DVDREN
63
CDRF
59, 60
AIP , AIN
53, 54
DIP , DIN
32
FDCHG#
49
HOLD1
11~14
D, C, B, A
5~8
A2, B2, C2, D2
15~16
F, E
3~4
PD1, PD2
40
MEI
35
MIN
21
DVDPD
23
CDPD
25
LDON#
61, 62
ATON/ATOP
51, 52
FNN, FNP
57
SIGO
64
CDRFDC
42
FE
41
TE
64
63
62
61
60
59
58
1
2
PD1
3
PD2
4
A2
5
B2
6
C2
7
D2
8
TOP VIEW
CP
9
CN
10
D
11
C
12
B
13
A
14
F
15
E
16
17
18
19
20
21
22
23
Type
I
RF Signal Inputs. Differential RF signal attenuator input pins
I
RF Signal Inputs. Single-ended RF signal attenuator input pin
I
AGC Amplifier Inputs. Differential AGC amplifier input pins
Analog inputs for RF Single Buffer. Differential analog inputs to the RF single-ended output buffer
I
and full wave rectifier
Low Impedance Enable. A TTL compatible input pin that activates the FDCHG switches. A low
level activates the switches and the falling edge of the internal FDCHG triggers the fast decay for
I
the MIRR bottom hold circuit. (open high)
Hold Control. A TLL compatible control pin which, when pulled high, disables the RF AGC charge
I
pump and holds the RF AGC amplifier gain at its present value. (open high)
I
Photo Detector Interface Inputs. Inputs from the main beam Photo detector matrix outputs
Photo Detector Interface Inputs. AC coupled inputs for the DPD from the main beam Photo
I
detector matrix outputs
I
CD tracking Error Inputs. Inputs from the CD photo detector error outputs.
I
CD Photo detector Interface Inputs. Inputs from the CD photo detector error outputs
I
Mirror Envelope Inputs. The SIGO envelope input pin
RF signal Input for Mirror. AC coupled inputs for the mirror detection circuit from the pull-in signal
I
output. (PI)
I
APC Input. DVD APC input pin from the monitor photo diode
I
APC Input. CD APC input pin from the monitor photo diode
I
APC Output On/Off. APC output control pin. A low level activates the LD output. (open high)
O
Differential Attenuator Output. Attenuator outputs
O
Differential Normal Output. Filter normal outputs
O
Single Ended Normal Output. Single-ended RF output
O
CD RF Signal Output. Single ended CD RF summing output
O
Focusing Error Signal Output. Focus error output reference to VCI
O
Tracking Error Signal Output. Tracking error output reference to VCI
57
56
55
54
53
52
51
50
49
24
25
26
27
28
29
30
31
32
Description
10
DVD-310
48
SDEN
47
SDATA
46
SCLK
45
LCP
44
LCN
43
CE
42
FE
41
TE
40
MEI
39
MEV
38
TPH
37
DFT
36
PI
35
MIN
34
MEVO
33
MLPF
10
Advertisement
