LC89057W-VF4A-E Datasheet, PDF (58/59 Pages) Sanyo Semicon Device – Digital Audio Interface Transceiver

LC89057W-VF4A-E
13. Application Example
13.1 Basic Connection Diagram
• _{Connect a de-coupling capacitance (0.1μF) as close as possible to the power supply pin. Use a ceramic capacitor with}
high-frequency characteristics for this capacitance.
• _{Use a capacitor with a low temperature coefficient for the PLL loop filter.}
Chip address setting
Chip address setting
Demodulation function
master/slave setting
Modulation/general-purpose
I/O function selection
Microcontroller
Cl Cl
24.576MHz / 12.288MHz
Cc
Rd
Rp
Cc
Rp
Rf
Rp
Rp
Microcontroller
A/D
DSP
36 35 34 33 32 31 30 29 28 27 26 25
37
DO
24
ADIN
38
DI
23
SLRCK
39
CE
22
SBCK
40
CL
21
RDATA
41
XMODE
20
RLRCK
42
DGND
Cc
43
DVDD
44
TMCK/PIO0
LC89057W-VF4A
19
DVDD
18
Cc
DGND
17
RBCK
45
TBCK/PIO1
16
RMCK
46
TLRCK/PIO2
47
TDATA/PIO3
15
AGND
14
Cc
AVDD
48
TXO/PIOEN
13
LPF
1 2 3 4 5 6 7 8 9 10 11 12
R0
C0 C1
A/D
DSP
D/A
Coaxial Input
Ci
Optical Input
Cc
Cc
Ri
* For how to use the RX1, see section 10.2.
Element Symbol
Cc
Rp
C1
Rf
Rd
Ci
Ri
C0
C1
R0
Table 13.1 Recommended Circuit Parameters (∗∗: See Section 10.1.1)
Recommended Parameter
Application
Remarks
0.1μF
Power supply de-coupling
Ceramic capacitor
10kΩ
Function setting
Pull-down/pull-up resistor
1pF to 33pF
Quarts resonator load
Ceramic capacitor with NP0 characteristics
1MΩ
Oscillation amplifier feedback
220Ω
Oscillation amplifier current limit
0.1μF
Coaxial input DC cut
Ceramic capacitor
75Ω
Coaxial input termination
∗∗
PLL loop filter
∗∗
PLL loop filter
∗∗
PLL loop filter
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