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PDF PT2037 Data sheet ( Hoja de datos )
| Número de pieza | PT2037 | |
| Descripción | Digitally Controlled Audio Processor | |
| Fabricantes | Princeton Technology | |
| Logotipo |  |
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DESCRIPTION
The PT2037 is a multiple functions audio signal
processor, very low distortion and low noise are
obtained by the advanced CMOS fabricate technology.
All of characteristics and functions are designed for the
customer who needs high performance and better
hearing experience. This device provides a lot of new
features like soft-mute and zero-crossing mute to
minimize the noises during the audio sources are
switching. Further more, the device equipped
differential audio inputs to improve the Common Mode
Reject Ratio and it is very helpful to canceling ground
loop hum noises in the car and audio dock system.
APPLICATIONS
• Car audio
• Audio dock system
• Mini compo system
BLOCK DIAGRAM
PT2037
Digitally Controlled Audio Processor
FEATURES
• Input multiplexer
- 4 Stereo input
- 1 Mono input
- 1 Differential input
- Selectable input gain for optimal adaptation to
different sources
• Multiple MUTE function
- Software controlled: Direct Mute, Zero-Crossing
Mute and Soft Mute
- Hardware controlled: Soft Mute
• Fully programmable loudness function
• Volume control in 1dB steps including gain up to
16dB
• 3 band (Bass, Middle and Treble ) tone control
• Four independent speaker attenuators control in
1dB steps for balance and fader facilities
• Programmable threshold for pause and zero cross
mute detector
• All functions programmable via serial I2C bus
STEREO1_L
STEREO2_L
STEREO3_L
STEREO4_L
DIFF_L
DIFFGND_L
MONO
STEREO1_R
STEREO2_R
STEREO3_R
STEREO4_R
DIFF_R
DIFFGND_R
DVDD
AVDD
16
17
18
15
14
13
11
8
9
10
7
6
5
41
42 SUPPLY
21 20 12
IN GAIN
VOLUME
+LOUDN
IN GAIN
VOLUME
+LOUDN
43
39 3
24
44
30 31 25
24
TREBLE
MIDDLE
BASS
SOFT
MUTE
I2C BUS DECODER +LATCHES
SPEAKER
ATT
34 OUT_LF
SPEAKER
ATT
33
OUT_LR
40 ADDR
38 SCL
37 SDA
36 DGND
TREBLE
MIDDLE
BASS
SOFT
MUTE
SPEAKER
ATT
29
OUT_RR
SPEAKER
ATT
32 OUT_RF
MUTE CONTROL
SOFT,ZERO
1 23 22 27 26 28 35 19
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
1 page  
Pin Name
MID_LI
OUT_LR
OUT_RF
OUT_LF
PAUSE
DGND
SDA
SCL
CREF
ADDR
DVDD
AVDD
AGND
TREB_L
I/O Description
I Left channel mid filter input
O Left channel rear output
O Right channel front output
O Left channel front output
O Pause detector output
- Digital ground
I I2C data input/output
I I2C clock input
I Internal reference bypass, connect a cap to AGND
I I2C chip address selection, keep open=88H, pull up to DVDD =8AH.
- Digital power supply
- Analog power supply
- Analog ground
I External cap for left channel treble filter
PT2037
Pin No.
31
32
33
34
35
36
37
38
39
40
41
42
43
44
V1.2
5 October 2009
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PT2037.PDF ] | |
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