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Электронный компонент: S5L9274

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DECODER FOR CD-MP3/CD-ROM
S5L9274
1
INTRODUCTION
S5L9274 is a single chip ISO/IEC 11172-3 Layer III audio decoder, capable
of decoding compressed elementary bit stream as specified in ISO/IEC
standard. As a decoder for the DISC-MAN, it can provide you more small and
cheaper solution for MP3 player application.
S5L9274 is low voltage IC that can read MP3 and CD-ROM format discs and
can be applied to various products.
FEATURES
Single-chip ISO/IEC 11172-3 Layer III Audio Decoder
Support All MPEG Bit Rates including free format
Support 32/44.1/48 kHz Sampling Frequency for MPEG Bit Stream
Support Single Channel, Dual Channel, Stereo and Joint Stereo
Any Combination of Intensity Stereo & MS Stereo is supported
Serial Host Interface
Simple Software for Micom
Support Off-chip DAC interface
Anti Shock Memory Controller
Power Save Mode : POWER-DOWN, SLEEP (when paused)
Use of Standard Crystal 16.9344MHz
16.9344MHz Clock Output Port
Soft Mute Function
CDFS(CD-ROM File System) Decoding
Low Power Dissipation : 171mW @3.0 volts
ORDERING INFORMATION
Device
Package
Supply Voltage
Operating Temperature
S5L9274X01-E0R0
64-LQFP-1010
2.8V
3.3V
-20
C
+75
C
64-LQFP-1010
S5L9274
DECODER FOR CD-MP3/CD-ROM
2
FUNCTIONAL BLOCK DIAGRAM
dspUnit
DRAM Bandwidth Estimated
- 1.9M words/sec
CD-MP3 Decoder Chip
cdrUnit
(CD-ROM Decoder)
Register
Set
ssp1611 Core +
PROM,
CROM0,RAM0,
CROM1,RAM1
IB
read
Channel
OB
write
Channel
OBL
read
Channel
OBR
read
Channel
Host
Channel
difUnit
(DAC I/F)
memUnit
(Memory Management Unit)
hifUnit
(Host
Interface)
Host MCU
DRAM Controller
1M x 4 bits DRAM
ckgUnit
Figure1. Functional Block Diagram of S5L9274
DECODER FOR CD-MP3/CD-ROM
S5L9274
3
APPLICATION DIAGRAM
XI
XO
XOUT
CLK
FILTER0
FILTER1
40pF
40pF
1K
16.9344MHz
820pF
940pF
PLL_BYPASS
2
3
4
5
10
14
15
GND
Test Pin Connection
40
41
42
43
TEST0
TEST1
TEST2
SCAN_EN
GND
S5L9274
DECODER FOR CD-MP3/CD-ROM
4
PIN CONFIGURATION
S5L9274X
1
2
3
4
5
6
7
8
9
10
12
VDD
XI
XO
XOUT
CLK
RESETB
PLL0 VDDA
PLL0 VSSA
PLL0 VBBA
FILTER_0
PLL1 VDDA
PLL1 VSSA
PLL1 VBBA
FILTER_1
PLL_BYPASS
VSS
13
14
16
15
11
17
VDD
18
ACLK EXT
19
CDP CLK
20
CD DATA
21
CD LRCK
22
CD BCK
23
CD C2PO
24
ACLK
25
BCLK
26
LRCK
27
ADAT
28
EMP
29
ETYPE
30
N.C
31
N.C
32
VSS
VSS
RASB
WEB
DDAT1
DDAT0
TEST0
TEST1
TEST2
SCAN_EN
MINT
MDOUT
MLAT
MCK
MDAT
MCU_CLK
VDD
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
64
VSS
OEB
63
62
DA03
61
DA02
60
DA01
59
DA00
58
DA09
57
DA04
56
DA05
55
DA06
54
DA07
53
DA08
52
CASB
51
DDAT3
50
DDAT2
49
VDD
Figure 2. 64 pin Low profile Quad Flat Package (LQFP)
DECODER FOR CD-MP3/CD-ROM
S5L9274
5
PIN DESCRIPTION
Pin No
Symbol
I/O
Description
1
VDD
P
Digital Power
2
XI
I
X'tal Oscillator input(16.9344MHz)
3
XO
O
X'tal Oscillator output
4
XOUT
O
Buffered Output of XO
5
CLK
I
System Clock input
6
RESETB
I
System Reset Active LOW
7
PLL0 VDDA
P
Analog Power for PLL0
8
PLL0 VSSA
G
Analog Ground for PLL0
9
PLL0 VBBA
G
Analog Ground for PLL0
10
FILTER_0
O
External Capacitor port for PLL0
11
PLL1 VDDA
P
Analog Power for PLL1
12
PLL1 VSSA
G
Analog Ground for PLL1
13
PLL1 VBBA
G
Analog Ground for PLL1
14
FILTER_1
O
External Capacitor port for PLL0
15
PLL_BYPASS
I
Tied to GROUND.
16
VSS
G
Digital Ground
17
VDD
P
Digital Power
18
ACLK EXT
I
External Audio Clock source
19
CD CLK
O
Clock Output for CD DSP IC
20
CD DATA
I
Data from CD DSP IC
21
CD LRCK
I
LRCK from CD DSP IC
22
CD BCK
I
BCK from CD DSP IC
23
CD C2PO
I
C2PO from CD DSP IC
24
ACLK
O
Audio clock to DAC clock input
25
BCLK
O
BCLK to DAC
26
LRCK
O
LRCK to DAC
27
ADAT
O
Data to DAC
28
EMP
O
Emphasis On/Off
29
ETYPE
O
Indicates emphasis type
30
N.C
-
No used
31
N.C
-
No used
32
VSS
G
Digital Ground