Samsung S1A0501X01-S0B0 Datasheet
DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01
GENERAL DESCRIPTION
The S1A0501X01 is an audio processor for volume/tone/fader
control, which is suitable for car radios or Hi-Fi system. It has a
built-in trimmer for user to set a source level. R/L rear output is
changable to input in the case of a home audio system for user
conveniency, an external equalizer or a noise reduction circuit
is selectable.
When the S1A0501X01 is used with some sound-effect equipment such as graphic equalizer, the internal tone control block
of S1A0501X01 can be bypassed for decreasing redundancy.
All selections and function controls are designed to be con-
trolled by an I2C-bus protocol or a general microprocessor
interface protocol.
32−SOP−450B
#1
FEATURES
• 3-Input multiplexing
• Source Level trimmer (selectable input level)
• Volume control in 0.6dB step
• Tone control (internal bass/treble function block with external components)
• Source out / volume in (enable ext.graphic eq./ noise reduction equipment)
• Loudness / mute
• Fader control ( separated for balance )
• All functions are programmable / controllable via serial I2C bus
or general Micom interface protocol.
ORDERING INFORMATION
Device Package Operating Temperature
S1A0501X01-S0B0 32−SOP−450B −25°C - +75°C
1
S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR
BLOCK DIAGRAM
RIGHT
INPUT
1 - 3
LEFT
INPUT
1 - 3
1
2
2
3
2
1
2.2uF
each
1.0uF
2.2uF
each
0.47uF
VCC
11
10
9
VOLTAGE
2
REFERENCE
13
14
15
28 3 19 18 12 21 20 4 16
DGND
0.1uF
2.2uF
AGND
2.2uF
VOLUME
VOLUME
0.1uF
0.47uF 0.0027uF
0.1uF
5.6K
0.1uF
BASS
Each
to
block
BASS
0.1uF
5.6k
TREBLE
0.0027uF
TREBLE
SERIAL I2C BUS INTERFACE
10uF
1752223867291
FADER
FADER
10uF
26
24
32
31
30
25
27
RFO
4.7uF
RRO
4.7uF
STB
SCL
SDA
LRO
4.7uF
LFO
4.7uF
PIN CONFIGURATION
2
32
STB1
VCC
31
SCL
CREF
2
30
SDA
AGND
3
29
DREF
LTC
4
27
LFO
26
RFO
28
DGND
S1A0501X01
RTC
RVOLIN
6
RSRCOUT
7
5
25
24
LRO
RRO
RVOLC
RIN3
8
9
23
RBC1
RIN2
10
22
RBC2
RIN1
11
21
20
LBC1
LBC2
LVOLC
LIN3
12
13
19
18
LVOLIN
LSRCOUT
LIN2
LIN1
14
15
OCC2
OCC1
16 17
DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01
PIN DESCRIPTION
Pin Symbols Description
1 VCC Power Supply
2 CREF Reference Voltage Ripple Rejection Capacitor Tab
3 AGND Analog Ground (0V)
4 LTC Left Treble Capacitor Tab
5 RTC Right Treble Capacitor Tab
6 RVOLIN Right Volume In / External Equalizer For Right Channel
7 RSRCOUT Right Source Out / External Equalizer For Right Channel
8 RVOLC Right Volume Loudness Capacitor Tab
9 RIN3 Right Audio Input3
10 RIN2 Right Audio Input2
11 RIN1 Right Audio Input1
12 LVOLC Left Volume Loudness Capacitor Tab
13 LIN3 Left Audio Input3
14 LIN2 Left Audio Input2
15 LIN1 Left Audio Input1
16 OCC1 Offset Cancelling Capacitor Tab1
17 OCC2 Offset Cancelling Capacitor Tab2
18 LVOLIN Left Volume In / External Equalizer For Left Channel
19 LSRCOUT Left Source Out / External Equalizer For Left Channel
20 LBC2 Left Bass Capacitor Tab2
21 LBC1 Left Bass Capacitor Tab1
22 RBC2 Right Bass Capacitor Tab2
23 RBC1 Right Bass Capacitor Tab1
24 RRO Right Rear Audio Output
25 LRO Left Rear Audio Output
26 RFO Right Front Audio Output
27 LFO Left Front Audio Output
28 DGND Digital Ground (0V)
29 DREF Internally-generated Digital Power Stabilization Capacitor Tab
30 SDA Data Signal Input Of I2C Bus
31 SCL Clock Signal Input Of I2C Bus
32 STB Strobe Signal Input
3
S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR
ABSOLUTE MAXIMUM RATINGS
Parameters Symbols Value Unit
Supply Voltage VCCmax 15.0 V
Max.Power Dissipation Pdmax 1000 mW
Max.Operating Temperature Topr -25 to +75
Max.Storage Temperature Tstg - 40 to +125
ELECTRICAL CHARACTERISTICS
Electrical Characteristics (Vi = 1Vrms/1kHz, Ta=25°C, VCC=13.2V TYP)
Parameters Test Conditions
Operating Voltage - 6.0 - 15.0 V
Supply Current Vi=0 6.0 10.0 14.0 mA
Input Dynamic VCC=13.2V, Output T.H.D.=0.1% 6.0 - - Vp-p
Input Crosstalk Vi=1Vrms,1kHz, 20Hz-20kHz BPF - - -89.0 dB
Trimming Range - -5.4 -6.0 - dB
Channel Crosstalk Vi=1Vrms,1kHz, 20Hz-20kHz BPF - - -89.0 dB
Channel Balance Vi=1Vrms,1kHz -2.0 - 2.0 dB
Voltage Gain Vi=1Vrms,1kHz, Volume=Max -2.0 0.0 2.0 dB
S/N Ratio Vi=1Vrms,1kHz, 20Hz-20kHz BPF - 92 dB
T.H.D. Vi=1Vrms,1kHz, Volume=Max - 0.005 0.01 %
Loudness Boost Vi=1Vrms,100Hz 0.2 - 10.5 dB
Max.Volume attenuation Vi=1Vrms,1kHz, Volume=Min -76.2 -74.2 dB
Bass Control Range Vi=1Vrms,100Hz, Bass= Min/Max -14 - 14 dB
Treble Control Range Vi=1Vrms,10kHz, Treble= Min/Max -12 - 12 dB
Front/Rear Balance Vi=1Vrms,1kHz, Fader= Middle - - 1.0 dB
Front/Rear Control Range Vi=1Vrms,1kHz, Fader= Min - - -38.75 dB
Frequency Response -3dB 20 - 20000 Hz
Mute Attenuation Vi=1Vrms,1kHz, 20Hz-20kHz BPF -100 - -90 dB
Specifications
Min Typ Max
Unit
4
DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01
SERIAL BUS INTERFACE PROTOCOL - THE I2C BUS
Timing Diagram of I2C Bus Protocol
SCL
SDA
STB
start
1
2
3
25 26 27
stop
I2C Bus Byte Format of S1A0501X01
Start 1 - 8 9 10 - 17 18 19 - 26 27 Stop
S Slave Address ACK Sub Address ACK DATA ACK P
S = A start Condition
Slave Address = Chip Address ( 10000000B )
ACK = Acknowledge ( from Slave )
Sub Address = Transferred Data1 ( assigning Function )
DATA = Transferred Data2 ( assigning Operation )
P = A Stop Condition
STB Signal 'LOW '= Always 'LOW' when I2C Bus protocol (tied to 'GND').
♣ Max.SCL Frequency 200kHz
5
S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR
Acknowledge on the I2C Bus Interface Protocol
start
SCL
SDA
1 2 3
MSB
Software Specification of S1A0501X01
<< Byte Organization - I2C Bus Transmission >>
FUNCTIONS
SUB DATA BYTE
Address MSB B6 B5 B4 B3 B2 B1 LSB
Select
Input
Control
Trimmer Set STS1 STS0 X X X
0 0 0 X X X X X
Loudness SLD X X X
Volume
Control
Tone
Control
Fine
Coarse SVC2 SVC1 SVC0 X
Bass
Treble ST3 ST2 ST1 ST0 OOST / CUT
0 0 1 X X X X X
0 1 0 X X X X X
Left Front 0 1 1 X X X X X
Fader
Control
Left Rear 1 0 0 X X X X X
Right Front 1 0 1 X X X X X SF4 SF3 SF2 SF1 SF0 X X X
Right Rear 1 1 0 X X X X X
Rearin Con
Misc.
Control
MUTE
1 1 1 X X X X X
EXT.EQ SEQ X X X X X
SMUT
E
7 8 9
Resistive HIGH
from Master
Acknowledgement signal
form Receiver
REMARKS
SSEL1SSEL0X X X
SVF3 SVF2 SVF1 SVF0 X
SB3 SB2 SB1 SB0 SB3 , ST3 :
SRIC X X X X X SET
X X X X X 'HIGH'
cf> 'Rearin Control' of MISC.CONTROL is a NOT-supported function in present version of S1A0501X01.
So this bit should be always 'HIGH' when transferring control data.
6
Loading...