Sharp SD-AT50 Service Manual page 61

ICA100, ICA200, ICA300 RH-iX2815AFZZ: 7th Order
Port Name
Pin No.
1 VDDL
2 OUTL (+)
3 OUTL (–)
4 GNDD
5 OUTR (–)
6 OUTR (+)
7 VDDR
8 VDDX
9 XI
10 XO
11 GNDX
12 MCK
13 TEST
14 NFR1 (+)
15 NFR2 (–)
16 GNDA
17 Rch IN
18 Rch Vref
19 Lch Vref
20 Lch IN
21 RESET
22 NFL2 (–)
23 NFL1 (+)
24 VDDA
1
VDDL
2
OUTL(+)
3
OUTL(–)
4
GNDD
5
OUTR(–)
6
OUTR(+)
7
VDDR
8
VDDX
9
XI
10
XO
11
GNDX
12
MCK
Input/Output
Input L channel digital output section power terminal
Output L channel forward output terminal
Output L channel reverse output terminal
— Digital output section ground terminal
Output R channel reverse output terminal
Output R channel forward output terminal
Input R channel digital output section power terminal
Input Oscillation section power terminal
Input Quartz oscillator connection terminal. Clock necessary for the system is generated.
Output Quartz oscillator connection terminal. Clock necessary for the system is generated.
— Oscillation section ground terminal
Output System clock output terminal
Input Test terminal. As usual, it is used at "L".
Input R channel forward signal feedback input terminal
Input R channel reverse signal feedback input terminal
— Analog ground terminal for AD converter
Input R channel analog input terminal
Input Reference voltage terminal for R channel
Input Reference voltage terminal for L channel
Input L channel analog input terminal
Input Reset terminal. It is reset with "L".
Input L channel reverse signal feedback input terminal
Input L channel forward signal feedback input terminal
Input Analog current terminal for AD converter
24
VDDA
23
NFL1(+)
22
NFL2(–)
21 RESET
20
Lch IN
Lch Vref
19
18 Rch Vref
17
Rch IN
16
GNDA
15
NFR2(–)
14
NFR1(+)
13
TEST
Figure 61 BLOCK DIAGRAM OF IC
Modulation Conversion LSI (IX2815AF)
Function
24 23 22 21 20
Lch 7th order
Modulation Circuit
Comparator
Amplitude Doubling
Amplitude Doubling
Converter
1 2 3 4
– 61 –
19 18 17 16
Rch 7th order
Modulation Circuit
Comparator
Oscillator
Converter
5 6 7 8 9
SD-AT50
15 14 13
10 11 12