PTC PT8402B_10

Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
MP3 Audio Decoder IC
PT8402B
DESCRIPTION
The PT8402B is a single chip MPEG audio decoder capable of decoding all layers compressed
elementary streams, as specified in MPEG 1 and MPEG 2 ISO standards, including the so called MP3.
In additional to decoding function, this chip also include a high-performance D/A converter and
headphone driver, so user can eliminate the need of external DAC and output circuit.
With external A/D converter, it can also compress incoming signal by using ADPCM algorithm,
therefore it can also playback ADPCM bitstream.
FEATURES
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Support all the sampling frequency of MPEG1 (32/44.1/48KHz), MPEG2(16/22.05/24KHz) and
MPEG2.5(12/11.025/8KHz).
Parallel/Serial bit stream input interface
I2S/Normal audio data output format delivered via an serial bus
Power save mode support
DAC master clock (256*fs / 384*fs for 16 / 24 bit DAC) is supported
Build-in DAC and headphone amp.
Build-in Volume and Digital Equalizer Control
Aux input for additional analog music source through AUXR and AUXL ports
Bass Booster, 3D Sound.
Low Operating Voltage, 2.5V.
Available in 100 pins and 80 pins, TQFP and LQFP Package
APPLICATIONS
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Portable MP3 player
PDA
CD/MP3 player
All other MP3 applications.
PT8402B V1.0
-1-
June, 2005
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
MP3 Audio Decoder IC
PT8402B
NC
GPIO1
GND
TEST1
GPIO2
NC
GPIO3
NC
GPIO4
NC
GPIO5
GND
VCC
NC
GPIO6
NC
DSPRDY
GND
CLKI
VCC
PWR_DWN
NC
/RST
GND
VCC
PIN CONFIGURATION
VCC
GND
GPIO0
NC
GPIO15
NC
GPIO14
NC
VCC
GND
GPIO13
NC
GPIO12
NC
VCC
GND
GPIO11
NC
GPIO10
NC
GPIO9
NC
GPIO8
VCC
GND
1
2
3
P 100 99 98 97 96
I/O P I I/O
P
I/O
95
94
93
I/O
92
91
I/O
90
89
88
87
I/O P P
86
85
84
83
82
81
80
79
O P I P I
I/O
I/O
6
7
I/O
8
9
10
11
P
P
I/O
12
13
I/O
PT8402B-100
14
15
16
17
P
P
I/O
18
19
I/O
20
21
I/O
22
23
24
25
I/O
P
P
P P O I
O
27
28
29
30
31
32
33
34
35
36
I
37
I I/O I/O P O P O O O P P I P
38
39
40
41
42
43
44
45
46
47
48
49
50
I
69
O
I
I
P
68
P
O
P
O
64
P
O
P
I
I
60
67
66
65
63
62
61
59
58
57
56
O
I
O
I
55
O
51
54
53
52
LPF2L_IN
LPF2L_OUT
DACIN_L
AUXL
AVDD12
AVSS0
OUTL
AVSS12
OUTR
AVDD0
VREF2
AVDD12
AUXR
DACin_R
LPF2R_OUT
LPF2R_IN
LPF1R_OUT
LPF1R_IN
DACR
NC
PD_REQ
NC
VCC
GND
PD_ACK
PD_ENA
B_ENA1
VCC
GND
BD1
BCK1
MCLKIN
IICC
IICD
VCC
MCLKO
GND
ADQO
ALRQO
ACKO
VCC
GND
TE
DVDD
26
I P P I
77 76
I P P
P 75 GND_PLL
P 74 VCC_PLL
P 73 DVSS
O 72 DACL
I 71 LPF1L_IN
O 70 LPF1L_OUT
4
5
78
Figure 1. 100 Pin Assignment (P: Power pins, I/O: IO pins)
PT8402B V1.0
-2-
June, 2005
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT8402B
GPIO1
GND
TEST1
GPIO2
GPIO3
GPIO4
GPIO5
GND
VCC
GPIO6
DSPRDY
GND
CLKI
VCC
PWR_DWN
NC
/RST
GND_PLL
VCC_PLL
DVSS
MP3 Audio Decoder IC
VCC
1
P
GND
2
P
GPIO0
3
I/O
O
60
DACL
GPIO15
4
I/O
I
59
LPF1L_IN
GPIO14
5
I/O
O
58
LPF1L_OUT
VCC
6
P
I
57
LPF2L_IN
GND
7
P
O
56
LPF2L_OUT
GPIO13
8
DACIN_L
9
I
I
55
GPIO12
I/O
I/O
54
AUXL
VCC
10
P
P
53
AVDD12
GND
11
P
P
52
AVSS0
GPIO11
12
I/O
O
51
OUTL
GPIO10
13
I/O
P
50
AVSS12
GPIO9
14
O
49
OUTR
GPIO8
15
I/O
I/O
P
48
AVDD0
VCC
16
P
O
47
VREF2
GND
17
P
P
46
AVDD12
18
O
O
I
45
I
44
AUXR
DACin_R
I
O
43
LPF2R_OUT
I I/O I/O P O P O O O P P I P O I I
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40O
42
LPF2R_IN
41
LPF1R_OUT
PD_REQ
PD_ACK
19
PD_ENA
20
80
79
78
76
75
74
73
72
71
70
69
68
67
66
I/O P I I/O I/O I/O I/O P P I/O O P I P I
64
63
23
24
I
25
62
61
I P P P
B_ENA1
VCC
GND
BD1
BCK1
MCLKIN
IICC
IICD
VCC
MCLKO
GND
ADQO
ALRQO
ACKO
VCC
GND
TE
DVDD
DACR
LPF1R_IN
22
65
PT8402B-80
I P P I
21
77
Figure 2. 80 Pin Assignment (P: Power pins, I/O: IO pins)
PT8402B V1.0
-3-
June, 2005
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
MP3 Audio Decoder IC
PT8402B
APPLICATION CIRCUIT
Osc.
PT8402B
VREF2
Host µP
Flash Memory
0.1µ
LPF2L_IN
LPF2R_IN
/RST
IICD
IICC
DATA_REQ
BD1
B_ENA1
BCK1
DACR
10K
LPF1R_IN
ADC
10K
10K
100P
560P
2700P
LPF1R_OUT
MIC
OP
10 µ
1µ
ADI2
ALRI2
ACKI2
DACIN_R
To
headphone
OUTR
220 µ
DACL
inL
AUXL
10K
LPF1L_IN
100K
10K
100P
inR
10K
560P
AUXR
2700P
LPF1L_OUT
100K
1µ
DACIN_L
OUTL
220 µ
To
headphone
Figure 3. PT8402B Typical Connection Diagram
PT8402B V1.0
-4-
June, 2005
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
MP3 Audio Decoder IC
PT8402B
ORDER INFORMATION
Valid Part Number
PT8402B-80LQ
PT8402B-LQ
PT8402B-TQ
PT8402B V1.0
Package Type
80Pins, LQFP
100Pins, LQFP
100Pins, TQFP
-5-
Top Code
PT8402B-80LQ
PT8402B-LQ
PT8402B-TQ
June, 2005