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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 controlled 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 S1A0501X01-S0B0 Package 32-SOP-450B Operating Temperature -25C - +75C
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S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
BLOCK DIAGRAM
0.47uF VCC 0.1uF 2.2uF 2.2uF each 1 RIGHT INPUT 1-3 2 2
11
5.6K
0.1uF
1 29 7 6 8
0.1uF
5
0.0027uF
10uF
17 26
23 22
RFO 4.7uF
VOLUME
10
TREBLE
BASS
FADER
24
RRO 4.7uF
9
2
1.0uF
VOLTAGE REFERENCE
Each to block
32
STB SCL SDA
SERIAL I2C BUS INTERFACE
31 30
3 LEFT INPUT 1-3 2 1 2.2uF each
13
VOLUME
TREBLE
BASS
14 15
25
LRO 4.7uF
FADER
27
LFO 4.7uF
28
3
19
18
12
21
20
4
16
0.1uF 2.2uF DGND 0.47uF AGND
0.1uF 5.6k 0.0027uF 10uF
PIN CONFIGURATION
STB 32
SCL 31
SDA 30
DREF 29
DGND 28
LFO 27
RFO 26
LRO 25
RRO 24
RBC1 23
RBC2 22
LBC1 21
LBC2 20
LSRCOUT 19
LVOLIN 18 15 LIN1
S1A0501X01
7 RSRCOUT 6 RVOLIN 8 RVOLC 12 LVOLC 3 AGND 16 OCC1 2 CREF 9 RIN3 10 RIN2 11 RIN1 13 LIN3 14 LIN2 1 VCC 4 LTC 5 RTC
2
OCC2 17
DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
PIN DESCRIPTION
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Symbols VCC CREF AGND LTC RTC RVOLIN RSRCOUT RVOLC RIN3 RIN2 RIN1 LVOLC LIN3 LIN2 LIN1 OCC1 OCC2 LVOLIN LSRCOUT LBC2 LBC1 RBC2 RBC1 RRO LRO RFO LFO DGND DREF SDA SCL STB Description Power Supply Reference Voltage Ripple Rejection Capacitor Tab Analog Ground (0V) Left Treble Capacitor Tab Right Treble Capacitor Tab Right Volume In / External Equalizer For Right Channel Right Source Out / External Equalizer For Right Channel Right Volume Loudness Capacitor Tab Right Audio Input3 Right Audio Input2 Right Audio Input1 Left Volume Loudness Capacitor Tab Left Audio Input3 Left Audio Input2 Left Audio Input1 Offset Cancelling Capacitor Tab1 Offset Cancelling Capacitor Tab2 Left Volume In / External Equalizer For Left Channel Left Source Out / External Equalizer For Left Channel Left Bass Capacitor Tab2 Left Bass Capacitor Tab1 Right Bass Capacitor Tab2 Right Bass Capacitor Tab1 Right Rear Audio Output Left Rear Audio Output Right Front Audio Output Left Front Audio Output Digital Ground (0V) Internally-generated Digital Power Stabilization Capacitor Tab Data Signal Input Of I2C Bus Clock Signal Input Of I2C Bus Strobe Signal Input
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S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
ABSOLUTE MAXIMUM RATINGS
Parameters Supply Voltage Max.Power Dissipation Max.Operating Temperature Max.Storage Temperature Symbols VCCmax Pdmax Topr Tstg Value 15.0 1000 -25 to +75 - 40 to +125 Unit V mW
ELECTRICAL CHARACTERISTICS
Electrical Characteristics (Vi = 1Vrms/1kHz, Ta=25C, VCC=13.2V TYP) Specifications Typ Max 15.0 10.0 14.0 -89.0 -6.0 -89.0 2.0 0.0 2.0 92 0.005 0.01 0.2 10.5 -76.2 -74.2 -14 14 -12 12 1.0 -38.75 20 20000 -100 -90 Min 6.0 6.0 6.0 -5.4 -2.0 -2.0
Parameters Operating Voltage Supply Current Input Dynamic Input Crosstalk Trimming Range Channel Crosstalk Channel Balance Voltage Gain S/N Ratio T.H.D. Loudness Boost Max.Volume attenuation Bass Control Range Treble Control Range Front/Rear Balance Front/Rear Control Range Frequency Response Mute Attenuation
Test Conditions Vi=0 VCC=13.2V, Output T.H.D.=0.1% Vi=1Vrms,1kHz, 20Hz-20kHz BPF Vi=1Vrms,1kHz, 20Hz-20kHz BPF Vi=1Vrms,1kHz Vi=1Vrms,1kHz, Volume=Max Vi=1Vrms,1kHz, 20Hz-20kHz BPF Vi=1Vrms,1kHz, Volume=Max Vi=1Vrms,100Hz Vi=1Vrms,1kHz, Volume=Min Vi=1Vrms,100Hz, Bass= Min/Max Vi=1Vrms,10kHz, Treble= Min/Max Vi=1Vrms,1kHz, Fader= Middle Vi=1Vrms,1kHz, Fader= Min -3dB Vi=1Vrms,1kHz, 20Hz-20kHz BPF
Unit V mA Vp-p dB dB dB dB dB dB % dB dB dB dB dB dB Hz dB
4
DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
SERIAL BUS INTERFACE PROTOCOL - THE I2C BUS
Timing Diagram of I2C Bus Protocol
start SCL
stop
SDA
1
2
3
25
26
27
STB
I2C Bus Byte Format of S1A0501X01 Start S 1-8 Slave Address S Slave Address ACK Sub Address DATA P STB Signal 'LOW = = = = = = '= 9 ACK 10 - 17 Sub Address 18 ACK 19 - 26 DATA 27 ACK Stop P
A start Condition Chip Address ( 10000000B ) Acknowledge ( from Slave ) Transferred Data1 ( assigning Function ) Transferred Data2 ( assigning Operation ) A Stop Condition Always 'LOW' when I2C Bus protocol (tied to 'GND').
Max.SCL Frequency 200kHz
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S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
Acknowledge on the I2C Bus Interface Protocol
start
SCL
1
2
3
7
8
9 Resistive HIGH from Master
SDA
MSB Acknowledgement signal form Receiver
Software Specification of S1A0501X01 << Byte Organization - I2C Bus Transmission >> SUB Address DATA BYTE B4 B3 SSEL SSEL 1 0
FUNCTIONS Select Input Control Trimmer Set Loudness Volume Fine Control Coarse Tone Bass Control Treble Left Front Fader Left Rear Control Right Front Right Rear Rearin Con Misc. MUTE Control EXT.EQ
MSB
B6
B5
B2 X
B1 X
LSB X X X X X SB0
REMARKS
000XXXXX SLD 001XXXXX 010XXXXX 011XXXXX 100XXXXX 101XXXXX 110XXXXX 111XXXXX SEQ
STS1 STS0
X X X X SVF3 SVF2 SVF1 SVF0 SB3 SB2 SB1
SVC2 SVC1 SVC0 ST3 ST2 ST1 ST0
SB3 , ST3 : OOST / CUT
SF4
SF3
SF2 SRIC
SF1 X X X
SF0 X X X
X X X X
X X X X
X X X X SET 'HIGH'
SMUT E
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.
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DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
SOFTWARE SPECIFICATION
-- Input Select / Trimmer Setting / Loudness Control FUNCTION SUBADDRESS b7 b6 b5 000 b7 DATA BYTE BYTE FORMAT b6 b5 b4 b3 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 VALUE b2 X X X X X X X X X X b1 X X X X X X X X X X b0 X X X X X X X X X X REMARK
Input Select
Trimmer Setting 0 1
Loudness
INPUT1 INPUT2 INPUT3 *INPUT4 0 dB - 2 dB - 4 dB - 6 dB ON OFF
Not Used 2 dB STEP (4 )
7
S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
SOFTWARE SPECIFICATION - Volume Control FUNCTION SUBADDRESS b7 b6 b5 001 b7 DATA BYTE BYTE FORMAT b6 b5 b4 b3 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 0 0 0 1 1 0 1 1 0 0 0 1 1 0 1 1 VALUE b2 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 b1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 b0 X X X X X X X X X X X X X X X X X X X X X X X X REMARK
Volume Control
0 0 0 1 1 1 1 1
0 dB 0.6 dB 1.2 dB 1.8 dB 2.4 dB 3.0 dB 3.6 dB 4.2 dB 4.8 dB 5.4 dB 6.0 dB 6.6 dB 7.2 dB 7.8 dB 8.4 dB 9.0 dB 0 dB 9.6 dB 19.2 dB 28.8 dB 38.4 dB 48.0 dB 57.6 dB 67.2 dB
0.6 dB STEP (16)
9.6 dB STEP (8)
8
DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
SOFTWARE SPECIFICATION - Tone Control : Bass boost/cut1 FUNCTION SUBADDRESS b7 b6 b5 010 b7 DATA BYTE BYTE FORMAT b6 b5 b4 b3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 VALUE b2 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 b1 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 b0 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 REMARK
Bass Control
- 14 dB - 12 dB - 10 dB - 8 dB - 6 dB - 4 dB - 2 dB 0 dB 0 dB 2 dB 4 dB 6 dB 8 dB 10 dB 12 dB 14 dB
2 dB STEP
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S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
SOFTWARE SPECIFICATION - Tone Control : Treble boost/cut FUNCTION SUBADDRESS b7 b6 b5 010 b7 0 0 0 0 0 0 Treble Control 0 0 1 1 1 1 1 1 1 1 b6 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 b5 0 0 1 1 0 0 1 1 1 1 0 0 1 1 0 0 DATA BYTE BYTE FORMAT b4 0 1 0 1 0 1 0 1 1 0 1 0 1 0 1 0 b3 b2 b1 b0 - 11.9 dB - 10.2 dB - 8.5 dB - 6.8 dB - 5.1 dB - 3.4 dB - 1.7 dB 0 dB 0 dB 1.7 dB 3.4 dB 5.1 dB 6.8 dB 8.5 dB 10.2 dB 11.9 dB 1.7 dB STEP VALUE REMARK
10
DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
SOFTWARE SPECIFICATION - Fader / Miscellaneous Control DATA BYTE BYTE FORMAT FUNCTION SUBADDRESS b7 0 1 1 1 b6 1 0 0 1 b5 1 0 1 0 b7 b6 DATA BYTE BYTE FORMAT b5 b4 b3 b2 VALUE b1 b0 Left Front Left Rear Right front Right Rear 0 dB - 1.25 dB - 2.5 dB - 3.75 dB - 5.0 dB - 6.25 dB - 7.5 dB - 8.75 dB 0 dB - 10 dB - 20 dB - 30 dB ENABLE DISABLE ON OFF ENABLE DISABLE REMARK
Fader Control
0 0 0 0 1 1 1 1 0 0 1 1 Rear-in Control Mute External Equalizer 111 0 1 0 1 0 1 0 1 0 1
0 0 1 1 0 0 1 1
0 1 0 1 0 1 0 1
X X X X X X
X X X X X X
X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X
X X X X X X X X X X X X X X X X X X
1.25 dB STEP (8)
10 dB STEP (4) Should Be 'DISABLE'
11
S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
SERIAL BUS INTERFACE PROTOCOL - THE GENERAL CASE
Timing Diagram of General MICOM Interface Bus Protocol
SCL
SDA
1
2
3
22
23
24
STB
General MICOM Interface Bus Byte Format Of S1A0501X01 Bit Stream Meanings 1-7 Chip Select Code = = = = = = 8 9 - 16 Function Code 17 - 24 DATA
Chip Select Code X Function Code DATA STB Signal 'LOW' STB Signal 'HIGH'
Same As I2C Bus Slave Address ( 1000000 x B ) Don't Care Bit (Not Used Bit) Transferred Data1 ( assigning Function ) Transferred Data2 ( assigning Operation ) Chip Not Selected. Chip Selected.
Allowed Strobe Pulse Width (Maximum) 6.0ms
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DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
Volume Step vs output Level Input :1Vrms Vcc=12V
Balance & Fader Step vs output Level Input :1Vrms Vcc=12V
L-OUT
R-OUT
L-ON
L-OFF
Balance/Fader(dB)
SAMSUNG Electronics& Mute KB22501 EVT4 VR or MUTE ATT AE1/4(13V) Volume Attenuation INPUT : 1Vrms Input : 1Vrms
Vcc=12V
+0 -20 -40 -60
SAMSUNG ElectronicsTreble Boost / Cut TONEAE1/4(12V) KB22501 EVT4 Bass & INPUT : 300mV Input : 300mVrm s, Volume=Max, VR MAX
+15
o : VR-MIN ATT ,CI : MUTE ATT A A
Vcc=12V
+10 +5 d B r +0 -5 -10
5k 10k 20k
d B r
Volume Attenuation
-80
Mute Attenuation
-100 10 20 50 100 200 500 Hz 1k 2k
-15 10
20
50
100
200
500 Hz
1k
2k
5k
10k
20k 30k
Color
Line Style Thick Data
Axis
SAMSUNG EleSolid cs 2 BoostKB22501 EVT4 LOUDNESS AE1/4(12V) ctroni Loudness Anlr.Ampl Left Yellow INPUT : 300mV , VR -37.8dB Red Solid 2 Anlr.Ampl Left Input : 300mVrms, Volume=-37.8dB
+0 -10 -20
Total Harmonic Distortion(T.H.D.) SAMSUNG Electronics KB22501 EVT4 THD AE1/4(13V) Blue Solid 1 Anlr.Level A Left INPUT : 1Vrms Input : 1Vrms A Left Cyan Solid 2 Anlr.Level
Green Solid Vcc=12V 2 0.05 0.04 0.03 % 0.02 Anlr.Level A Left
Color Line Style Thick Data
Axis
Vcc=12V
o : VR -20dB , CI : VR 0dB
Volume - 20 dB
d B r
-30 -40
0.01
Volume 0 dB
-50 10
20
50
100
200
500 Hz
1k
2k
5k
10k
20k 30k
10
20
50
100
200
500 Hz
1k
2k
5k
10k
20k
13
S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
Input CrossTalk SAMSUNG Electronics KB22501 FUNCTION CROSS TALK AE1/4(13V) INPUT : 1Vrms Selected Input : 1Vrms, Otherwise : Short Vcc=12V
+0 -20 -40 -60 -80 -100 10
L/R Channel SeparationL/R SEPARATION AE1/4(13V) SAMSUNG Electronics KB22501 Selected Channel Input :1Vrms INPUT : 1Vrms The Other : Short, Vcc=12V
+0 -20 -40 -60 -80
d B r
d B r
20
50
100
200
500 Hz
1k
2k
5k
10k
20k
-100 10
20
50
100
200
500 Hz
1k
2k
5k
10k
20k
Color
Line Style Thick Data
Axis
14
DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
APPLICATION CIRCUIT 1
MODE I : 3 INPUTS - 1 OUTPUT
VCC + 0.1uF 100uF 1.0uF + 0.0027uF 0.0027uF + 1 VCC 2 CREF 3 AGND 4 LTC 5 RTC 6 RVOLIN 2.2uF 8 RVOLC 9 RIN3 10 RIN2 11 RIN1 12 LVOLC 13 LIN3 14 LIN2 15 LIN1 16 OCC1 STB 32 SCL 31 SDA 30 DREF 29 DGND 28 4.7uF LFO 27 7 RSRCOUT 0.47uF
RIN3 RIN2 RIN1
VDD 100k 100k
MICOM Control Data 0.1uF +
S1A0501X01
RFO 26 LRO 25 RRO 24 RBC1 23 RBC2 22 LBC1 21 LBC2 20 LSRCOUT 19
2.2uF + 2.2uF + 2.2uF + 0.47uF 2.2uF + 2.2uF + 2.2uF + 10uF
+ 4.7uF + 4.7uF + 4.7uF + 0.1uF 0.1uF 0.1uF 0.1uF + 2.2uF 10uF
VO(LF) VO(RF) VO(LR) VO(RR) 5.6K
5.6K
LIN3 LIN2 LIN1
LVOLIN 18 OCC2 17
15
S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
APPLICATION CIRCUIT 2
MODE II : 3 INPUTS - 1 OUTPUT W/ EXT.EQUIPMENT
VCC + 0.1uF 100uF 1.0uF + 0.0027uF 0.0027uF 2.2uF 7 RSRCOUT 8 RVOLC 9 RIN3 10 RIN2 11 RIN1 12 LVOLC 13 LIN3 14 LIN2 15 LIN1 16 OCC1 EXTERNAL EQUIPMENT + + 0.47uF
RIN3 RIN2 RIN1
VDD 100k 1 VCC 2 CREF 3 AGND 4 LTC 5 RTC 6 RVOLIN STB 32 SCL 31 SDA 30 DREF 29 DGND 28 4.7uF LFO 27 + 4.7uF + 4.7uF + 4.7uF + 0.1uF 0.1uF 0.1uF 0.1uF 2.2uF + 2.2uF + 10uF EXTERNAL EQUIPMENT 5.6K VO(LF) VO(RF) VO(LR) VO(RR) 5.6K 0.1uF + MICOM Control Data 100k
S1A0501X01
RFO 26 LRO 25 RRO 24 RBC1 23 RBC2 22 LBC1 21 LBC2 20
2.2uF + 2.2uF + 2.2uF + 0.47uF 2.2uF + 2.2uF + 2.2uF + 10uF
LIN3 LIN2 LIN1
LSRCOUT 19 LVOLIN 18 OCC2 17
Cf> Let the microprocessor set `SEQ' signal to 0, if an external device is an audio-signal controlled processor such as a graphic equalizer.
16
DIGITAL CONTROLLED AUDIO PROCESSOR
S1A0501X01
APPLICATION CIRCUIT 3
MODE III : 3 INPUTS - 1 OUTPUT (NOT I2C BUS PROTOCOL)
VCC + 0.1uF 100uF 1.0uF + 0.0027uF 0.0027uF + 1 VCC 2 CREF 3 AGND 4 LTC 5 RTC STB 32 SCL 31 SDA 30 DREF 29 DGND 28 4.7uF 2.2uF 7 RSRCOUT 0.47uF
RIN3 RIN2 RIN1
VDD 100k 100k MICOM Control Data 0.1uF + 100k
S1A0501X01
6 RVOLIN
LFO 27 RFO 26 LRO 25 RRO 24 RBC1 23 RBC2 22 LBC1 21 LBC2 20
8 RVOLC 9 RIN3 10 RIN2 11 RIN1 12 LVOLC 13 LIN3 14 LIN2 15 LIN1 16 OCC1
2.2uF + 2.2uF + 2.2uF + 0.47uF 2.2uF + 2.2uF + 2.2uF + 10uF
+ 4.7uF + 4.7uF + 4.7uF + 0.1uF 0.1uF 0.1uF 0.1uF + 2.2uF 10uF
VO(LF) VO(RF) VO(LR) VO(RR) 5.6K
5.6K
LIN3 LIN2 LIN1
LSRCOUT 19 LVOLIN 18 OCC2 17
17
S1A0501X01
DIGITAL CONTROLLED AUDIO PROCESSOR
NOTES
18

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