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MEX-N4000BE/N4000BT/N4050BT/N4070BT
49
MAIN BOARD IC705 TC94A99FG-003 (SYCH (RF AMP, DIGITAL SERVO PROCESSOR, AUDIO DSP)
Pin No.
Pin Name
I/O
Description
1
LPFO
O
PLL circuit low-pass fi lter amplifi er output terminal
2
PVREF
-
PLL circuit reference voltage (+1.65V) terminal
3
VCOF
O
VCO fi lter terminal
4
RVSS3
-
Ground terminal
5
VCOI
I
DSP VCO control voltage input terminal
6
RVDD3
-
Power supply terminal (+3.3V)
7
SLCO
O
EFM slice level output terminal
8
RFI
I
RF signal input terminal
9
RFRPI
I
RF ripple signal input terminal
10
RFEQO
O
RF equalizer circuit output terminal
11
DCOFC
O
RF equalizer offset compensation low-pass fi lter output terminal
12
AGCI
I
RF signal auto gain control amplifi er input terminal
13
RFO
O
RF signal generation amplifi er output terminal
14
RVSS3
-
Ground terminal
15
FNI2
I
Main beam (B) input from the CD mechanism deck block
16, 17
FNI1, FPI2
I
Main beam (C) input from the CD mechanism deck block
18
FPI1
I
Main beam (A) input from the CD mechanism deck block
19
VDD1-1
-
Power supply terminal (+1.5V)
20
TPI
I
Sub beam (F) input from the CD mechanism deck block
21
TNI
I
Sub beam (E) input from the CD mechanism deck block
22
VRO
O
Reference voltage (+1.65V) output to the CD mechanism deck block
23
AVSS3
-
Ground terminal
24
MDI
I
Laser power detection signal input from the CD mechanism deck block
25
LDO
O
Laser power control signal output the CD mechanism deck block
26
FSMONIT
O
Not used
27
RFZI
I
RF ripple zero-cross signal input terminal
28
RFRP
O
RF ripple signal output terminal
29
TEI
O
Tracking error signal output terminal
30
AVDD3
-
Power supply terminal (+3.3V)
31
FOO
O
Focus coil control signal output to the CD mechanism deck block
32
TRO
O
Tracking coil control signal output to the CD mechanism deck block
33
VSS-1
-
Ground terminal
34
FMO
O
Sled motor control signal output to the CD mechanism deck block
35
DMO
O
Spindle motor control signal output to the CD mechanism deck block
36
VDDM1
-
Power supply terminal (+1.5V)
37
/SRAMSTB
I
Standby signal input from the system controller “L”: standby
38
VDD1-2
-
Power supply terminal (+1.5V)
39
VDD3-1
-
Power supply terminal (+3.3V)
40, 41
PIO10, PIO11
I/O
Not used
42
SDIN_R
I
Audio data input from the system controller
43
BCK_IN_R
I
Bit clock signal input from the pin 49 (BCK_OUT)
44
LRCK_IN_R
I
L/R sampling clock signal input from the pin 48 (LRCK_OUT)
45
SDOUT_CH0
O
Audio data output to the system controller
46, 47
PIO16, PIO17
I/O
Not used
48
LRCK_OUT
O
L/R sampling clock signal output to the system controller
49
BCK_OUT
O
Bit clock signal output to the system controller
50
PIO20
I/O
Not used
51
DVDD12
-
Power supply terminal (+3.3V)
52
DAO1 (R_R-CH)
O
Audio signal (rear R-ch) output to the electrical volume
53
DVSS12
-
Ground terminal
54
DAO2 (F_R-CH)
O
Audio signal (front R-ch) output to the electrical volume
55
DVREF
-
Reference voltage terminal
56
DVDD34
-
Power supply terminal (+3.3V)
57
DAO3 (F_L-CH)
O
Audio signal (front L-ch) output to the electrical volume
58
DVSS34
-
Ground terminal
59
DAO4 (R_L-CH)
O
Audio signal (rear L-ch) output to the electrical volume
60
DVDD5
-
Power supply terminal (+3.3V)
61
DAO5 (SUB-CH)
O
Audio signal (sub-ch) output to the electrical volume
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