RXD-M55-H/M55-N/M55-S/M55E-H/M55E-N/M55E-S
14
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Pin Description
1
VREF
-
Reference voltage.
2
GND
-
Ground pin.
3
BINR
I
PB B deck right channel input.
4
AINR
I
PB A deck right channel input.
5
PBNFR
-
PB EQ. feed back.
6
PBEQR
O
Equalizer right channel output (70u).
7
EQOR
O
Equalizer right channel output (120u).
8
TAIR
I
Tape right channel input.
9
PBOOR
O
PB right channel output.
10
MAOUT
O
MS amplifier output (unused).
11
MAI
I
MS amplifier input (unused).
12
IREF
I
Equalizer reference current input.
13
RECIR
I
Rec equalizer right channel input.
14
RIP
O
NAB output.
15
RECOR
O
Rec equalizer right channel output.
16
RECOL
O
Rec equalizer left channel output.
17
VCC
-
Power supply.
18
RECIL
I
Rec equalizer left channel input.
19
MUTE
I
Mode control input.
Pin No.
Pin Name
I/O
Pin Description
1
PD
I
APC Amp input
2
LD
O
APC Amp output
3
VCC
-
Power supply
4
RF
I
RF amp inverting input
5
RF OUT
O
RF addition amp output
6
RF IN
I
AGC amp input
7
LDRCTL
-
LD reference voltage control
8
CAGC
-
AGC loop filter connection
9
ARF
O
AGC output
10
CEA
-
Capacitance connection for RF HPF-Amp
11
3TOUT
O
3T-ENV output
12
CSBDO
-
Capacitance connection for RF dark side envelope detection
13
BDO
O
BDO output
14
COFTR
-
Capacitance connection for RF bright side envelope detection
15
OFTR
O
OFTR output
16
NRFDET
O
NRFDET output
17
GND
-
Ground
18
SLPSW
-
Sleep mode control
19
VREF
O
VREF output
20
TEN
I
TE. Amp inverting input
21
TEOUT
O
TE. Amp output
22
FEN
I
FE. Amp inverting input
23
FEOUT
O
FE. Amp output
24
GCTL
O
Gain & APC control
25
FBAL
O
F. BAL control
26
TBAL
O
T. BAL control
27
E
I
Tracking signal input 1
28
F
I
Tracking signal input 2
29
D
I
Focus signal input 4
30
B
I
Focus signal input 2
31
C
I
Focus signal input 3
32
A
I
Focus signal input 1
6-6 CD RF IC : AN8399SA-E1 (X29,IC21)
6-7 PB/REC Equalizer System IC : HA12230NT (X28, IC1)
