Sony CX-VX33 Service Manual page 65

• IC Pin Description
IC301 PS9818 (DIGITAL AUDIO PROCESSOR) (MAIN BOARD (3/5))
Pin No. Pin Name
1 IO_VSS
2 PLL_DVSS
3 PLL_DVDD
4 PLL_XPD
5 PLL_CPC
6 PLL_AVDD
7 PLL_EXT_LPF
8 PLL_AVSS
9 IO_VSS
10 IO_VDD
11 MBCK
12 MLRCK
13 DVDD
14 DVSS
15 to 18 MSDIN0 to MSDIN3
19 SBCK
20 SLRCK
21 IO_VSS
22 IO_VDD
23 to 26 SSDIN0 to SSDIN3
27 EXT_MUTE
28 IO_VSS
29 IO_VDD
30 MIC_MCLK
31 MIC_BCK
32 MIC_LRCK
33 MIC_SDIN
34 DVDD
35 DVSS
36 PWM_SWL_M
37 PWM_SWL_P
38 IO_VSS
39 IO_VDD
40 PWM_HP_R_M
41 PWM_HP_R_P
42 DVDD
43 DVSS
44 IO_VSS
45 PWM_HP_L_M
46 PWM_HP_L_P
47 IO_VDD
48 PWM1_M
49 PWM1_P
50 IO_VSS
51 PWM2_M
52 PWM2_P
53 IO_VSS
54 PWM3_M
55 PWM3_P
56 IO_VDD
I/O
— I/O digital ground
— PLL digital ground
— PLL peripheral digital power supply (+2.5 V)
I Internal PLL power down signal input (L: active)
I Internal PLL charge pump current selection input (Fixed at H in this set)
— PLL analog power supply (+2.5 V)
I/O External PLL low pass filter signal input/output
— PLL analog ground
— I/O digital ground
— I/O digital power supply (+3.3 V)
I/O PCM bit clock input/output of main 8-channel audio. (Fixed at L in this set)
PCM word clock (left-right clock) input/output of main 8-channel audio.
I/O
(Fixed at L in this set)
— Core digital power supply (+2.5 V)
— Core digital ground
I PCM serial data input of main 8-channel audio. (Fixed at L in this set)
I/O PCM bit clock input/output of sub 8-channel audio.
I/O PCM word clock (left-right clock) input/output of sub 8-channel audio.
— I/O digital ground
— I/O digital power supply (+3.3 V)
I/O PCM serial data input/output of sub-channel audio.
I External mute control input (H: active) (Not used in this set)
— I/O digital ground
— I/O digital power supply (+3.3 V)
O Main clock output for external microphone input A/D converter. (Not used in this set)
O PCM bit clock output of external microphone. (Not used in this set)
O PCM word clock (left-right clock) output of external microphone. (Not used in this set)
I PCM serial data input of external microphone. (Not used in this set)
— Core digital power supply (+2.5 V)
— Core digital ground
O Negative PWM output of subwoofer line output. (Not used in this set)
O Positive PWM output of subwoofer line output. (Not used in this set)
— I/O digital ground
— I/O digital power supply (+3.3 V)
O Negative PWM output of headphone right channel.
O Positive PWM output of headphone right channel.
— Core digital power supply (+2.5 V)
— Core digital ground
— I/O digital ground
O Negative PWM output of headphone left channel.
O Positive PWM output of headphone left channel.
— I/O digital power supply (+3.3 V)
O Negative PWM output of channel 1.
O Positive PWM output of channel 1.
— I/O digital ground
O Negative PWM output of channel 2.
O Positive PWM output of channel 2.
— I/O digital ground
O Negative PWM output of channel 3.
O Positive PWM output of channel 3.
— I/O digital power supply (+3.3 V)
Pin Description
CX-VX33
Ver. 1.1
65