Sharp SM-SX1 Service Manual page 40

SM-SX1/SX1W
IC801 VHiSM5844AF-1: Sampling Rate Converter (SM5844AF) (2/2)
Pin No. Port Name
34, 35 SLAVE Input with pull-up resistor
36*,37* THRUN Input with pull-up resistor
38 OCKSL Input with pull-up resistor
39 OCLK
40 LRCO
41, 42 BCKO
43, 44 DOUT
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Note 1: "fsi" means the word clock (LRCI) on the input side, and "fso" means the work clock (LRCO) on the output side.
Note 2: When H level is set, "open" is also applicable.
Note 3: When the terminal of plural terminal Nos. For the same terminal name is used, it does not matter whether either or both
terminals are connected.
MCOM
16
MDT/FSI1
17
MCK/FSI2 18
19
MLEN/DEEM
ICLK
ICKSL
LRCI
RSTN
TST1N
TST2N
OW18N
OW20N
IISN
SLAVE
OCLK
OCKSL
THRUN
DMUTE
Input/Output
Mode setting of BCKO, LRCO terminal. H: Output terminal is selected. (Slave mode)
L: Input terminal is selected. (Master mode)
Through mode setting of DOUT
System clock on the output side (OCLK) selection. H: 384fs, L: 256fs
Input Output system clock input
Input/Output Word clock output/input on the output side (fso)
Output/input mode is set from the slave terminal.
Input/Output Bit clock output/input on the output side
Output/input mode is set from the slave terminal.
Output Data output
De-emphasis
Attenuator Setting
20
6
Division on
7
the Input Side
5
Input Timing
Controller
30
31
Filter Characteristics
Selection
28
29
Output Practice
Timing Controller
21
22
23
Output Format
24
Controller
25
26
34
Clock Selection on the
35
Output Side
39
Division on the
38
Output Side
36
37
14
15
Mute
Generation
LRCO
Figure 40 BLOCK DIAGRAM OF IC
IFM1
IFM2
8 9 11 10
MODE
Dither
40 41 42
BCKO
– 40 –
Function
H: Normal mode, L: Through mode
BCKI DI
4 3 2 1
Input Data
Interface
Operation Section
De-emphasis
Operation
Attenuator
Interpolation
Filter Operation
Output Operation
Output Data
Interface
LRCI DI
BCKI
Through Mode Switch
Direct Mute
43 44
DOUT
27 STATE