Ic Pin Function Description; Audio Board Ic308 Cxd8482Q (Sbm + Digital Filter) - Sony PCM-R500 Service Manual

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4-12. IC PIN FUNCTION DESCRIPTION

• AUDIO BOARD IC308 CXD8482Q (SBM + Digital Filter)

Pin No. Pin Name
1 TEST
2 NC
3 SYNC
4 INIT
5 NC
6 CFLG
7, 8 VDD
9 LRKI
10 BKI
11 NC
12 DLI
13 DRI
14 IFLG
15, 16 NC
17 FE
18 AL2
19 AR2
20 AL1
21 AR1
22, 23 VSS
TE
L 13942296513
24, 25 CVSS
26 FCLK
27 MCLK
28 CVDD
29 NC
30 IBIT
31 NC
32 VSS
33 SCALE
34 ISEL1
35 ISEL2
36 NC
37 DITH
38 BOOST
39 VDD
40 MODE
41 SHIFT
42 LATCH
43 NC
44 LC
45 SBM
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I/O
I Test input pin. "H" for test mode and "L" for normal mode. (Fixed at "L" level in this set.)
— Empty pin
I Sync mode setting pin. "H" for INT master mode and "L" for EXT slave mode.
A/D converter power down mode input from main microcomputer (IC501). ("H" active)
I
(This IC is set OFF in digital input/output mode.)
— Empty pin
O FE calibration flag output (Not used in this set, empty pin.)
— Power supply pin (+5V)
I L/R clock input (Not used in this set, fixed at "L" level.)
I Beat clock input (Not used in this set, fixed at "L" level.)
— Empty pin
I L channel data input (Not used in this set, fixed at "L" level.)
I R channel data input (Not used in this set, fixed at "L" level.)
O FE sync flag output (Not used in this set, empty pin.)
— Empty pin
I FE select input (Not used in this set, fixed at "L" level.)
I Data signal (L) input (Not used in this set, fixed at "L" level.)
I Data signal (R) input (Not used in this set, fixed at "L" level.)
I Data signal (L) input from A/D converter (IC307).
I Data signal (R) input from A/D converter (IC307).
— Ground
— Ground
O Output of 128fs master clock for FE to A/D converter (IC307).
I Input of 256fs master clock from FS clock generator (IC325).
— Power supply pin (+5V)
— Empty pin
I 64fs input data mode select input ("H": 4bit, "L": 1bit) (Fixed at "L" level in this set.)
— Empty pin
— Ground
Scale select input ("H": ×4, "L": ×5) (Fixed at "L" level in this set.)
I
I FS select of input data (Fixed at "L" level in this set.)
I FS select of input data (Fixed at "L" level in this set.)
— Empty pin
Dither control input. Dither active when "H" and stopped when "L".
I
(Not used in this set, empty pin.)
Boost control input. Boost active when "H" and normal when "L".
I
(Fixed at "H" level in this set.)
— Power supply pin (+5V)
I Serial data signal input from main microcomputer (IC501).
Shift clock signal input from main microcomputer (IC501). (Shift when ↓, latch when ↑)
I
I Latch pulse signal input from main microcomputer (IC501).
— Empty pin
Low cut control input. "H" for low frequency cut and "L" for flat. (Fixed at "H" level in this
I
set.)
Super Bit Mapping (SBM) control input from main microcomputer (IC501).
I
("H": ON, "L": OFF)
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