Sharp LC-42XL2E (serv.man5) Service Manual ▷ View online
LC-42XL2E/S/RU, LC-46XL2E/S/RU, LC-46X20E/S/RU, LC-52XL2E/S/RU, LC-52X20E/S/RU
5 – 9
2.5. IC1402 (VHiR2S15502-1Y)
2.5.1 Pin Connections and short description
15, 16, 17
OUTPR
O
Digital amplifier output terminal (Rch+)
18, 19
PVSSR
—
Ground terminal for digital amplifier output (Rch)
20, 21, 22
OUTMR
O
Digital amplifier output terminal (Rch-)
23, 24
PVDDMR
—
Power terminal for digital amplifier output (Rch-)
26
SLEEPN
I
Sleep control terminal
27
PROTN
O
Error flag output terminal
28
MUTEN
I
Mute control terminal
29
CKOUT
O
Clock output terminal for synchronization
30
CKIN
I
External clock input terminal
31
NCDRC0
I
Non-clip/DRC1/DRC2 mode selection terminal 0
32
NCDRC1
I
Non-clip/DRC1/DRC2 mode selection terminal 1
33
GAIN0
I
GAIN setting terminal 0
34
GAIN1
I
GAIN setting terminal 1
37, 38
PVDDML
—
Power terminal for digital amplifier output (Lch-)
39, 40, 41
OUTML
O
Digital amplifier output terminal (Lch-)
42, 43
PVSSL
—
Ground terminal for digital amplifier output (Lch)
44, 45, 46
OUTPL
O
Digital amplifier output terminal (Lch+)
47, 48
PVDDPL
—
Power terminal for digital amplifier output (Lch+)
Pin No.
Pin Name
I/O
Pin Function
1
AVSS
—
0V Power Supply for Analog Core
2
AVDD
—
3.3V Power Supply for Analog Core
3
SIF
I
Sound IF Input
4
VREF1
—
ADC Voltage Reference 1
5
VREF2
—
ADC Voltage Reference 2
6
TEST
I
Test pin
7
XI
I
Crystal Oscillator Input
8
XO
O
Crystal Oscillator Output
9
IVDD
—
3.3V Power Supply for I/O Buffer
10
IVSS
—
0V Power Supply for I/O Buffer
11
DVSS
—
0V Power Supply for Logic Core
12
DVDD
—
1.5V Power Supply for Logic Core
13
DACCLK
I/O
DAC Clock
14
BCK
I/O
Bit Clock
15
LRCK
I/O
LR Clock
16
SD0
O
Digital Output for External DAC
17
SDI
I
Digital Input for Internal DAC
18
SDA
I/O
I2C bus Serial Data
19
SCL
I
I2C bus Serial Clock
20
STATUS
I/O
PLL Setting / Status Signal
21
RESET
I
Hardware Reset (Active low)
22
ROUT
O
Rch Analog Output
23
VCOM
—
DAC Voltage Reference
24
LOUT
O
Lch Analog Output
Pin No.
Pin Name
I/O
Pin Function
LC-42XL2E/S/RU, LC-46XL2E/S/RU, LC-46X20E/S/RU, LC-52XL2E/S/RU, LC-52X20E/S/RU
5 – 10
2.6. IC1403 (VHiTAS3108D-1Y)
2.6.1 Block Diagram
2.6.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
38
AVDD
—
Analog power-supply input (3.3V)
1
AVSS
—
Analog ground
7
CS0
I
Pull-down Chip select
9, 30
DVDD
—
Digital power-supply input (3.3V)
10, 29
DVSS
—
Digital ground
8
GPIO
I/O
Pull-up GPIO control pin (user programmable)
19
LRCLK
I/O
Pull-down Sample rate clock (fS) input or output
5
MCLKIN
I
Master clock input (Connect to ground when not in use.)
21
MCLKO
O
Master clock output
6
MICROCLK_DIV
I
Pull-down Internal microprocessor clock divide control
31
PDN
I
Pull-up Powers down all logic and stops all clocks, active-low. Coefficient memory remains stable
through power-down cycle.
through power-down cycle.
34
PLL0
I
Pull-up PLL control 0
35
PLL1
I
Pull-down PLL control 1
36
PLL2
I
Pull-down PLL control 2
33, 37
RESERVED
—
Connect to ground
32
RESET
I
Pull-up Reset, active-low
16
SCL1
I/O
I2C port #1 clock (always a slave)
18
SCL2
I/O
I2C port #2 clock (always a slave)
20
SCLKIN
I
Pull-down Bit clock input
LC-42XL2E/S/RU, LC-46XL2E/S/RU, LC-46X20E/S/RU, LC-52XL2E/S/RU, LC-52X20E/S/RU
5 – 11
2.7. IC1404 (VHiAK4683EQ-1Q)
2.7.1 Block Diagram
22
SCLKOUT1
O
Bit clock #1 out. Used to receive input serial data.
23
SCLKOUT2
O
Bit clock #2 out. Used to clock output serial data.
15
SDA1
I/O
I2C port #1 data (always a slave)
17
SDA2
I/O
I2C port #2 data (always a slave)
11
SDIN1
I
Pull-down Serial data input 1
12
SDIN2
I
Pull-down Serial data input 2
13
SDIN3
I
Pull-down Serial data input 3
14
SDIN4
I
Pull-down Serial data input 4
27
SDOUT1
O
Serial data output 1
26
SDOUT2
O
Serial data output 2
25
SDOUT3
O
Serial data output 3
24
SDOUT4
O
Serial data output 4
2
VR_PLL
—
Internal regulator. This pin must not be used to power external devices.
3
XTALI
I
Oscillator input (connect to ground when not in use)
4
XTALO
O
Oscillator output
28
VR_DIG
---
Internal regulator. This pin must not be used to power external devices.
Pin No.
Pin Name
I/O
Pin Function
LC-42XL2E/S/RU, LC-46XL2E/S/RU, LC-46X20E/S/RU, LC-52XL2E/S/RU, LC-52X20E/S/RU
5 – 12
2.7.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
1
PVDD
—
PLL Power supply, 4.5V~5.5V.
2
RX0
I
Receiver Channel 0 (Internal biased pin. Internally biased at PVDD/2).
3
I2C
I
Control Mode Select.
“L”: 4-wire Serial, “H”: I2C Bus
“L”: 4-wire Serial, “H”: I2C Bus
4
RX1
I
Receiver Channel 1.
5
RX2
I
Receiver Channel 2.
6
RX3
I
Receiver Channel 3.
7
INT
O
Interrupt
8
DZF
O
Zero Input Detect.
When the input data of DAC follow total 8192 LRCK cycles with “0” input data, this pin goes to “H”. And
when RSTN1 bit is “0”, PWDA bit is “0”, this pin goes to “H”
When the input data of DAC follow total 8192 LRCK cycles with “0” input data, this pin goes to “H”. And
when RSTN1 bit is “0”, PWDA bit is “0”, this pin goes to “H”
9
CDTO
O
Control Data Output in Serial Mode and I2C pin = “L”.
10
LRCKB
I/O
Channel Clock B
11
BICKB
I/O
Audio Serial Data Clock B
12
SDTOB
O
Audio Serial Data Output B
13
OLRCKA
I/O
Output Channel Clock A
14
ILRCKA
I/O
Input Channel Clock A
15
BICKA
I/O
Audio Serial Data Clock A
16
SDTOA
O
Audio Serial Data Output A
17
MCKO
O
Master Clock Output
18
TVDD
—
Output Buffer Power Supply, 2.7V~5.5V
19
DVSS
—
Digital Ground
20
DVDD
—
Digital Power Supply, 4.5V~5.5V
21
XTI
I
X’tal Input
22
XTO
O
X’tal Output
23
TX
O
Transmit Channel Output
When DIT bit = “0”, RX0~3 Through.
When DIT bit = “1”, Internal DIT Output.
When DIT bit = “0”, RX0~3 Through.
When DIT bit = “1”, Internal DIT Output.
24
MCLK2
I
Master Clock Input
25
PDN
I
Power-Down Mode & Reset
When “L”, the AK4683 is powered-down, all registers are reset. And then all digital output pins go “L”.
The AK4683 must be reset once upon power-up.
When “L”, the AK4683 is powered-down, all registers are reset. And then all digital output pins go “L”.
The AK4683 must be reset once upon power-up.
26
SDA
I/O
Control Data in Serial Mode and I2C pin = “H”.
27
SCL
I
Control Data Clock in Serial Mode and I2C pin = “H”.
28
CSN
I
Chip Select in Serial Mode and I2C pin = “L”.
29
SDTIA1
I
Audio Serial Data Input A1
30
SDTIA2
I
Audio Serial Data Input A2
31
SDTIA3
I
Audio Serial Data Input A3
32
SDTIB
I
Audio Serial Data Input B
33
HVDD
—
HP Power Supply, 4.5V~5.5V
34
HVSS
—
HP Ground
35
HPR
O
HP Rch Output.
36
HPL
O
HP Lch Output.
37
MUTET
—
HP Common Voltage Output
38
LOUT2
O
DAC2 Lch Positive Analog Output
39
ROUT2
O
DAC2 Rch Positive Analog Output
40
LOUT1
O
DAC1 Lch Positive Analog Output
41
ROUT1
O
DAC1 Rch Positive Analog Output
42
VCOM
—
DAC/ADC Common Voltage Output
43
AVDD2
—
DAC Power Supply, 4.5V~5.5V
44
AVSS2
—
DAC Ground
45
LISEL
O
Lch Feedback Resistor Output
46
LOPIN
O
Lch Feedback Resistor Input. 0.5 x AVDD1.
47
ROPIN
O
Rch Feedback Resistor Input. 0.5 x AVDD1.
48
RISEL
O
Rch Feedback Resistor Output
49
AVSS1
—
ADC Ground
50
AVDD1
—
ADC Power Supply, 4.5V~5.5V
51
LIN1
I
Lch Input 1
52
RIN1
I
Rch Input 1
53
LIN2
I
Lch Input 2
54
RIN2
I
Rch Input 2
55
LIN3
I
Lch Input 3
56
RIN3
I
Rch Input 3
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