Audio Processor. PT2037 Datasheet

PT2037 Processor. Datasheet pdf. Equivalent

PT2037 Datasheet
Recommendation PT2037 Datasheet
Part PT2037
Description Digitally Controlled Audio Processor
Feature PT2037; DESCRIPTION The PT2037 is a multiple functions audio signal processor, very low distortion and low n.
Manufacture Princeton Technology
Datasheet
Download PT2037 Datasheet




Princeton Technology PT2037
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: 886-66296288Fax: 886-29174598http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan



Princeton Technology PT2037
APPLICATION CIRCUIT
POWER
VDD 2
1
GND
22uF
50
100n
PT2037
MCU
OUTPUTS
4.7uF
OUT_LF
1
5.6nF
2
TREB_R
IN_R
3 MUXOUT_R
DIFFG_R
DIFF_R
ST4_R
4
47nF
5
4.7uF
6
4.7uF
7
470nF
LOUD_R
DIFFGND_R
DIFF_R
STEREO4_R
ST1_R
8 STEREO1_R
470nF
ST2_R
9 STEREO2_R
470nF
ST3_R
10 STEREO3_R
470nF
MONO
INPUTS
11 MONO
470nF
DIFFG_L
PT2037
OUT_RF 33
4.7uF
OUT_LR 32
4.7uF
MID_LI 31
18nF
MID_LO 30
22nF
OUT_RR 29
4.7uF
SMEXT 28
2.7K
BASS_RO 27
100nF
BASS_RI 26
100nF
BASS_LO 25
100nF
BASS_LI 24
100nF
MID_RO 23
22nF
18nF
5.6K
5.6K
2.7K
OUT_RF
OUT_LR
OUT_RR
DIFF_L
ST4_L
2.2uF
ST1_L
ST2_L
ST3_L
Notes:
1. AGND and DGND trace on the PCB layout must be separated, tight separated GND path together on the bypassing capacitor negative terminal.
A 50resistor on the DGND path could minimize the I2C noises to interference audio outputs.
2. Refer the differential input section description to achieve correspond wiring instruction.
V1.2
2 October 2009



Princeton Technology PT2037
ORDER INFORMATION
Valid Part Number
PT2037-LQ
Package Type
44 Pins, LQFP
PIN CONFIGURATION
PT2037
Top Code
PT2037-LQ
V1.2
3 October 2009







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