LC786821E Datasheet, PDF (10/35 Pages) ON Semiconductor – Compressed Audio Signal Processor IC

LC786821E
■ Pin Description
Pin
No.
Pin name
I/O
1 NC

2 AVDD1

3 AVSS1

4 LRREF
AO
5 DACOUTR
AO
6 RVRIN
AI
7 RROUT
AO
8 RFOUT
AO
9 DACOUTS
AO
10 SWIN
AI
11 SWOUT
AO
12 VREF_ADC AO
13 AVSS2

14 AVDD2

15 L3INP
AI
16 L3INN
AI
17 R3INP
AI
18 R3INN
AI
19 L2IN
AI
20 R2IN
AI
21 L1IN
AI
22 R1IN
AI
23 TEST0
I
24 TEST1
I
25 DVDD18_2
AO
26 GP15
I/O
27 GP50
I/O
28 GP51
I/O
29 GP52
I/O
30 GP53
I/O
31 DVDD

32 DVSS

State when
"Reset"



AVDD1/2
Unknown
Input
Unknown
Unknown
Unknown
Input
Unknown
AVDD2/2


Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
H
Input(L)
Input(L)
Input(L)
Input(L)
Input(L)


Function
NC pin. This pin must be left open.
Analog system (ADC) power supply
Analog system (ADC) ground. This pin must be connected to the 0V level.
Capacitor connection pin for reference voltage for Audio DAC and
Electronic Volume.
Audio DAC : Right channel output
Electronic Volume : Right channel volume input
Electronic Volume : Right channel Rear output
Electronic Volume : Right channel Front output
Audio DAC : Sub-Woofer output
Electronic Volume : Sub-Woofer volume input
Electronic Volume : Sub-Woofer output
Capacitor connection pin for audio ADC reference voltage
Analog system (ADC) ground. This pin must be connected to the 0V level.
Analog system (ADC) power supply
Analog stereo Left channel Differential input (Positive) /
Analog stereo Left channel Single Ended input
Analog stereo Left channel Differential input (Negative)
Analog stereo Right channel Differential input (Positive) /
Analog stereo Right channel Single Ended input
Analog stereo Right channel Differential input (Negative)
Analog stereo Left channel Single Ended input
Analog stereo Right channel Single Ended input
Analog stereo Left channel Single Ended input
Analog stereo Right channel Single Ended input
Test input. This pin must be connected to the 0V level.
Test input. This pin must be connected to the 0V level.
Capacitor connection pin for internal regulator (1.8V for Flash)
General purpose I/O port with pull down resistor
Various signal monitoring output
General purpose I/O port with pull down resistor
LR clock input/output 1 for Audio interface
LR clock input 1 for Stream data interface
Transmit data output for serial communication 3 (exclusive with GP34)
Over current detection signal input for USB 1 (exclusive with GP44)
General purpose I/O port with pull down resistor
Bit clock input/output 1 for Audio interface
Bit clock input/output 1 for Stream data interface
Master clock output for serial communication 3 (exclusive with GP35)
Power supply signal output for USB 1 (exclusive with GP45)
General purpose I/O port with pull down resistor
Data input/output 1 for Audio interface
Data input 1 for Stream data interface
Receive data input for serial communication 3 (exclusive with GP36)
Over current detection signal input for USB 2 (exclusive with GP46)
General purpose I/O port with pull down resistor
Clock (Fs384) input/output 1 for Audio DAC
Request flag input/output 1 for Stream data interface
Power supply signal output for USB 2 (exclusive with GP47)
Digital system power supply
Digital system ground. This pin must be connected to the 0V level.
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