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IC102 VHiBP5220++-1: DC/DC Converter (BP5220)
Pin
Terminal
No.
Name
1
FB
Feedback terminal
2
VOUT
Output terminal
3
GND
GND
4
CTL
ON, OFF terminal
5*
N.C.
Not used
6*
ADJ
Output voltage fine adjustment terminal
7*
N.C.
Not used
8*
—
Cut pin
9
VIN
Input terminal
In this unit, the terminal with asterisk mark (*) is (open)
terminal which is not connected to the outside.
IC301 VHiSM6451AV-1: Volume Control (SM6451AV)
Pin No. Terminal Name
1
RSTN
2
ADRS1
3
ADRS2
4
DVDD
5
LOUT
6
LIN
7
AVDD
8
VRL
9
VRR
10
AVSS
11
RIN
12
ROUT
13
DVSS
14
MLEN
15
MCK
16
MDT
1
RSTN
ADRS1
2
ADRS2
3
DVDD
4
LOUT
5
LIN
6
AVDD
7
VRL
8
Function
Input/Output
Input terminal with pull-up
Input terminal with pull-up
Input terminal with pull-up
—
Output
Input
—
Output
Output
—
Input
Output
—
Input terminal with pull-up
Input terminal with pull-up
Input terminal with pull-up
16
MDT
MCK
15
MLEN
14
DVSS
13
12
ROUT
11
RIN
10
AVSS
VRR
9
Figure 43-2 BLOCK DIAGRAM OF IC
POWER
CIRCUIT
9
VIN
System reset input (Reset at L)
Chip address set terminal 1
Chip address set terminal 2
Digital VDD
L channel audio output
L channel audio input
Analog VDD
Capacity connecting terminal for L channel reference voltage (VDD/2)
Capacity connecting terminal for R channel reference voltage (VDD/2)
Analog VSS
R channel audio input
R channel audio output
Digital VSS
Microcomputer latch enable input
Microcomputer clock input
Microcomputer data
5
ATTENUATION
CONTROL
ATTENUATION DECODER
6
14
15
– 43 –
DRIVING CIRCUIT
CONTROL CIRCUIT
N.C.
N.C.
7
6
5
4
N.C.
ADJ
N.C.
CTL
Figure 43-1 BLOCK DIAGRAM OF IC
Function
8
7
10
9
REFERENCE
VOLTAGE CIRCUIT
I/F CONTROL
CHIP
ADDRESS
DECODER
16
1
2
3
4
DX-SX1H
3
2
1
GND
VOUT
FB
12
ATTENUATION
CONTROL
13
11
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