Service manual

– 51 –
SD-EX200
1 VDDL Input L channel digital output section power terminal.
2 OUTL (+) Output L channel forward output terminal.
3 OUTL (–) Output L channel reverse output terminal.
4 GNDD — Digital output section ground terminal.
5 OUTR (–) Output R channel reverse output terminal.
6 OUTR (+) Output R channel forward output terminal.
7 VDDR Input R channel digital output section power terminal.
8 VDDX Input Oscillation section power terminal.
9 XI Input Quartz oscillator connection terminal. Clock necessary for the system is generated.
10 XO Output Quartz oscillator connection terminal. Clock necessary for the system is generated.
11 GNDX — Oscillation section ground terminal.
12* MCK Output System clock output terminal.
13* TEST Input Test terminal. As usual, it is used at "L".
14 NFR1 (+) Input R channel forward signal feedback input terminal.
15 NFR2 (–) Input R channel reverse signal feedback input terminal.
16 GNDA — Analog ground terminal for AD converter.
17 Rch IN Input R channel analog input terminal.
18 Rch Vref Input Reference voltage terminal for R channel.
19 Lch Vref Input Reference voltage terminal for L channel.
20 Lch IN Input L channel analog input terminal.
21 RESET Input Reset terminal. It is reset with "L".
22 NFL2 (–) Input L channel reverse signal feedback input terminal.
23 NFL1 (+) Input L channel forward signal feedback input terminal.
24 VDDA Input Analog current terminal for AD converter.
Pin No.
Port Name
Input/Output
Function
ICA100 RH-iX0498AWZZ: 7th Order Modulation Conversion LSI (IX0498AW)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VDDL VDDA
NFL1(+)
NFL2(–)
RESET
Lch IN
Lch Vref
Rch Vref
Rch IN
GNDA
NFR2(–)
NFR1(+)
TEST
OUTL(+)
OUTL(–)
GNDD
OUTR(–)
OUTR(+)
VDDR
VDDX
XI
XO
GNDX
MCK
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
VDA NFL1(+) NFL2(–) RESET Lch IN Lch Vref Rch Vre
f
Rch IN GNDA NFR2(–) NFR1(+) TEST
VDDL
OUTL(+)
OUTL(–)
GNDD
OUTR(–)
OUTR(+)
VDDR
VDDX
XI
XO
GNDX
MCK
ComparatorComparator
Amplitude Doubling
Converter
Amplitude Doubling
Converter
Oscillator
Lch 7th order
Modulation Circuit
Rch 7th order
Modulation Circuit
Figure 51 BLOCK DIAGRAM OF IC
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.