Document
PT2358
9 Inputs, 7 Outputs Car Audio Processor
DESCRIPTION
The PT2358 is a multiple inputs audio processor designed for Car Audio purpose. Using I2C interface controls all of the functions. Thanks for highly integration most of peripheral sub-circuits and components, it provides up to 9 inputs and equips outputs includes front, rear channel outputs. For highly enhanced audio performance and experience, PT2358 volume controller has Soft-Step function to eliminate click noise during volume step changes. Adjustable input gain, adaptive loudness, subwoofer filter, treble and bass tone control are all included.
APPLICATIONS
Car Audio
FEATURES
Operation voltage 6~10V 7 single-ended stereo Inputs 1 quasi-differential (QD) input for AUX 1 fully-differential (FD) input for Bluetooth® audio
module. Input gain from 0 ~+15dB in 1dB step Main volume gain from +15 to -79dB in 1dB step
with Soft-Step function. Soft-Mute and Soft-Step function for preventing
audible click during volume and sources changing. 1 subwoofer output with 3-band crossover
frequency selection and gain from +15 to -79dB in 1dB step Tone Control (Bass and Treble): -15 to +15dB in 1dB step Loudness: gain from 0 to -15dB in 1dB step Mixing input with 50% mixing ratio for front speakers, gain from -79 to +15dB in 1dB step. 4 independent outputs for front and rear speakers, output gain from +15 to -79dB with 1dB step Controlled by I²C Interface Low Distortion and Low Noise 48-pin LQFP package
Tel: 886-66296288‧Fax: 886-29174598‧http://www.princeton.com.tw‧2F, 233-1, Baociao Road, SindianDist.,New Taipei City 23145, Taiwan
PT2358
BLOCK DIAGRAM
MIXIN
SE7L SE6L SE5L SE4L SE3L SE2L SE1L
FDL+ FDL-
FDRFDR+
QDL QDG QDR
FDL L FDR R
L
QD R
SDA CONTROL
SCL
SE7R SE6R SE5R SE4R SE3R SE2R SE1R
IN GAIN
LOUDNESS
SOFT-MUTE
MASTER VOLUME
BASS
TREBLE
IGL VOL LDL
REF
IN GAIN
BL1 BL2 TRL
REF
VDD CREF GND
POWER
REF
IN GAIN
L+R MIX
C1P
FLAT
RSW1
RSW2
C2
LPF
SOUT SIN
LOUDNESS
SOFT-MUTE
MASTER VOLUME
BASS
TREBLE
IGR VOR LDR
REF
IN GAIN
BR1
BR2
TRR
REF
L-MIX ON R-MIX ON
OUTLF OUTRF
OUTLR OUTSW
OUTRR
V1.0
2
August 2014
APPLICATION CIRCUIT
VDD 9V
4.7uF
0.1uF
SE7R SE7L
2.2uF 2.2uF
MCU
SE6R SE6L SE5R SE5L SE4R SE4L SE3R SE3L SE2R SE2L SE1R SE1L
Bluetooth Audio Module
2 1 3
FDR+ FDRFDLFDL+
QDR QDG QDL
2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF 2.2uF
2.2uF 2.2uF 2.2uF 2.2uF
2.2uF 2.2uF 2.2uF
37 SE6R 38 SE6L 39 SE5R 40 SE5L 41 SE4R 42 SE4L 43 SE3R 44 SE3L 45 SE2R 46 SE2L 47 SE1R 48 SE1L
10uF
PT2358
1 FDR+ 2 FDR3 FDL4 FDL+ 5 QDR 6 QDG 7 QDL 8 VOL 9 IGL 10 LDL 11 LDR 12 IGR
SE7L 36 SE7R 35 SDA 34 SCL 33 GND 32 CREF 31 VDD 30 MIXIN 29 OUTLF 28 OUTLR 27 OUTRR 26 OUTRF 25
1uF 4.7uF 4.7uF 4.7uF 4.7uF
MIX IN
47nF 47nF
2.2uF
PT2358
OUTLF OUTLR OUTRR OUTRF
OUTSW 24 SOUT 23 SIN 22 C2 21 C1P 20 TRL 19 TRR 18 BR1 17 BR2 16 BL1 15 BL2 14 VOR 13
4.7uF 2.2uF
OUTSW
27nF 68nF 8.2nF 8.2nF 100nF 100nF 100nF 100nF 2.2nF
4.7K 4.7K
V1.0
3 August 2014
SE7L 36 SE7R 35 SDA 34 SCL 33 GND 32 CREF 31 VDD 30 MIXIN 29 OUTLF 28 OUTLR 27 OUTRR 26 OUTRF 25
ORDER INFORMATION
Valid Part Number PT2358
Package Type 48-Pin, LQFP
PIN CONFIGURATION
37 SE6R 38 SE6L 39 SE5R 40 SE5L 41 SE4R 42 SE4L 43 SE3R 44 SE3L 45 SE2R 46 SE2L 47 SE1R 48 SE1L
PT2358
PT2358
Top Code PT2358-LQ
OUTSW 24 SOUT 23 SIN 22 C2 21 C1P 20 TRL 19 TRR 18 BR1 17 BR2 16 BL1 15 BL2 14 VOR 13
1 FDR+ 2 FDR3 FDL4 FDL+ 5 QDR 6 QDG 7 QDL 8 VOL 9 IGL 10 LDL 11 LDR 12 IGR
V1.0
4 August 2014
PT2358
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied.
Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw
V1.0
21 August 2014
.