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参数资料
| 型号： | LC83025E |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封装： | QFP-80 |
| 文件页数： | 10/15页 |
| 文件大小： | 282K |
| 代理商： | LC83025E |
Pin Functions
No. 4977-4/15
LC83025E
Pin No.
Symbol
I/O
Function
[Control pins]
13
OSC1
I
Crystal oscillator connection (768 fs)
14
OSC2
O
Crystal oscillator connection (768 fs)
10
FS384I
I
384 fs input (Apply a clock that is equal to the OSC1/OSC2 768 fs clock divided by 2.)
11
SELC
I
Audio clock source switching (High: Fixes FS384I as the clock)
18
SAIF
I
Digital audio input mode switching (Low: backward packed, High: forward packed)
19
SAOF
I
Digital audio output mode switching (Low: 48 fs, High: 64 fs)
17
RES
I
Reset
25 to 21
TEST5 to
I
Test (Must be tied to ground in normal operation.)
TEST1
20
TEST6
O
Test (Must be left open in normal operation.)
48
P0
I
Coefficient transfer mode switching
50, 49
P2, P1
I
Initial operating mode setting (This pin should be held high in normal operation.)
51
P3
O
Microphone signal present (low output) or absent (high output) indication output
52
P4
O
Music signal present (low output) or absent (high output) indication output
[External memory interface]
79
RAS
O
RAS signal output
80
CAS
O
CAS signal output
1
DREAD
O
External memory read signal output
2
DWRT
O
External memory write signal output
68 to 60
A8 to A0
O
Address outputs
69 to 71,
D7 to D0
I/O
Data I/O (Normally, only D3 to D0 are used.)
74 to 78
[Audio interface]
9
LRCKI
I
ASI L/R clock input (1 fs)
5
LRCKO
O
ASO L/R clock output (1 fs)
8
BCKI
I
ASI bit clock input (32 fs or higher)
4
BCKO
O
ASO bit clock output (48 fs or 64 fs)
6
FS384O
O
ASO 384 fs output
7
ASI
I
Digital audio data input (MSB first, 16 bits)
3
ASO
O
Digital audio data output (MSB first, backward packed, 16 bits)
35
ADL1
I
A/D converter input (left channel)
33
ADL2
O
A/D converter output (left channel)
37
ADL3
O
A/D converter output (left channel)
40
ADR1
I
A/D converter input (right channel)
38
ADR2
O
A/D converter output (right channel)
42
ADR3
O
A/D converter output (right channel)
45
ADM1
I
A/D converter input (microphone)
43
ADM2
O
A/D converter output (microphone)
47
ADM3
O
A/D converter output (microphone)
28
DAOL
O
D/A converter output (left channel)
31
DAOR
O
D/A converter output (right channel)
[Microcontroller interface]
55
SIRQ
I
Serial input request signal input
59
SIAK
O
Output indicating serial input execution in progress
56
SI
I
Serial data input from the control microcontroller (8-bit serial data)
57
SICK
I
SI transfer clock input
58
SRDY
I
Ready signal input from the control microcontroller that indicates that serial data input has completed
Continued on next page.
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