Sharp LC-26SB25E, Service Manual

Page: 67 / 172

2008-03-14
LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
67
PIN NAME TYPE DESCRIPTION
1 DGND Supply Digital Negative supply
2 LRCLK Digital input Sample rate clock input
3 DIN Digital input Serial audio data input
4 BCLK Digital input Bit clock input
5 MUTE Digital input
Soft mute control, Internal pull down
High Impedance = Automute
High = Mute ON
Low = Mute OFF
6 VOUTR Analogue output Right channel DAC output
7 AGND Supply Analogue Negative supply
8 CAP Analogue output Analogue internal reference
9 AVDD Supply Analogue Positive supply
10 VOUTL Analogue output Left channel DAC output
11 DEEMPH Digital input
De-emphasis select, Internal pull down
High = de-emphasis ON
Low = de-emphasis OFF
12 FORMAT Digital input
Data input format select, Internal pull up
Low = 16-bit right justified or 16bit DSP ‘late’
High = 16-32-bit I
2
S or 16bit DSP ‘early’
13 MCLK Digital input Master clock input
14 DVDD Supply Digital Positive supply
2.10. U401 (MT8295AE LQFP-128)
2.10.1 Block Diagram
2.10.2 Pin Connections and short description
Pin Number
M0 M1 M2
Symbol Type Driving Description Note
Miscellaneous
107 RESETB I N/A Chip reset
114 100 117 CI_INT O 4~16mA Interrupt 1
NAND flash
116 102 115 CI_DATA0 I/O 4~16mA NAND Flash Data bit 0 1
115 101 114 CI_DATA1 I/O 4~16mA NAND Flash Data bit 1 1
95 96 106 CI_DATA2 I/O 4~16mA NAND Flash Data bit 2 1
102 117 105 CI_DATA3 I/O 4~16mA NAND Flash Data bit 3 1
101 116 103 CI_DATA4 I/O 4~16mA NAND Flash Data bit 4 1
100 115 102 CI_DATA5 I/O 4~16mA NAND Flash Data bit 5 1
99 95 101 CI_DATA6 I/O 4~16mA NAND Flash Data bit 6 1
98 94 100 CI_DATA7 I/O 4~16mA NAND Flash Data bit 7 1
94 99 116 CI_CEB I N/A NAND Flash Chip enable 1
106 98 99 CI_RB O 4~16mA NAND Flash Ready 1
96 114 94 CI_WEB I N/A NAND Flash Write enable 1
103 105 95 CI_ALE I N/A NAND Flash Address Latch enable 1
105 103 96 CI_CLE I N/A NAND Flash Command Latch enable 1
117 106 98 CI_OEB I N/A NAND Flash Output enable 1
CLK/Crystal