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 Package Operating Temperature S1A0501X01-S0B0 32−SOP−450B −25°C - +75°C 1 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR BLOCK DIAGRAM 0.47uF 5.6K 0.1uF VCC 2.2uF 0.1uF 2.2uF each 1 7 6 8 23 22 5 17 VOLTAGE REFERENCE 2 14 1 Each to block VOLUME 13 FADER RRO 24 4.7uF 2 3 TREBLE 9 4.7uF 15 SERIAL I2C BUS INTERFACE TREBLE 2 BASS 10 BASS 2 RFO 26 1.0uF LEFT INPUT 1-3 29 11 VOLUME RIGHT INPUT 1-3 1 10uF 0.0027uF 0.1uF 32 STB 31 SCL 30 SDA LRO 25 4.7uF FADER 2.2uF each LFO 27 4.7uF 28 3 19 18 12 21 0.1uF 20 4 16 0.1uF 2.2uF 0.47uF DGND 5.6k 10uF 0.0027uF AGND LBC1 21 LBC2 20 LSRCOUT 19 LVOLIN 18 OCC2 17 12 LVOLC 13 LIN3 14 LIN2 15 LIN1 16 OCC1 RBC2 22 RBC1 23 RRO 24 LRO 25 RFO 26 LFO 27 DGND 28 DREF 29 SDA 30 SCL 31 STB 32 PIN CONFIGURATION 2 11 RIN1 10 RIN2 9 RIN3 8 RVOLC 7 RSRCOUT 6 RVOLIN 5 RTC 4 LTC 3 AGND 2 CREF 1 VCC S1A0501X01 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 3 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=25°C, VCC=13.2V TYP) 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 4 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 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 Unit V mA Vp-p dB dB dB dB dB dB % dB dB dB dB dB dB Hz dB DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01 SERIAL BUS INTERFACE PROTOCOL - THE I2C BUS Timing Diagram of I2C Bus Protocol start stop SCL SDA 1 2 3 25 26 27 STB I2C Bus Byte Format of S1A0501X01 Start S 1-8 Slave Address 9 ACK 10 - 17 Sub Address 18 ACK 19 - 26 DATA S Slave Address ACK Sub Address DATA P = = = = = = A start Condition Chip Address ( 10000000B ) Acknowledge ( from Slave ) Transferred Data1 ( assigning Function ) Transferred Data2 ( assigning Operation ) A Stop Condition STB Signal 'LOW '= Always 'LOW' when I2C Bus protocol (tied to 'GND'). 27 ACK Stop P ♣ Max.SCL Frequency 200kHz 5 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR Acknowledge on the I2C Bus Interface Protocol start SCL 1 2 7 3 8 9 Resistive HIGH from Master SDA MSB Acknowledgement signal form Receiver Software Specification of S1A0501X01 << Byte Organization - I2C Bus Transmission >> 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 SUB Address MSB 000XXXXX B6 B5 STS1 STS0 SLD 001XXXXX 010XXXXX 011XXXXX 100XXXXX 101XXXXX 110XXXXX DATA BYTE B4 B3 SSEL SSEL 1 0 B2 X B1 X X X X X SVF3 SVF2 SVF1 SVF0 LSB X SB3 SB2 SB1 X X X X SB0 SVC2 SVC1 SVC0 ST3 ST2 ST1 ST0 SF4 SF3 SF2 SF1 SF0 X X X SRIC X X X X X X X X X X X X X X X SMUT E 111XXXXX SEQ REMARKS SB3 , ST3 : OOST / CUT SET '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 DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01 SOFTWARE SPECIFICATION — Input Select / Trimmer Setting / Loudness Control FUNCTION SUBADDRESS Input Select b7 b6 b5 0 0 0 b7 Trimmer Setting Loudness 0 1 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 INPUT1 INPUT2 INPUT3 *INPUT4 0 dB - 2 dB - 4 dB - 6 dB ON OFF REMARK Not Used 2 dB STEP (4 ) 7 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR SOFTWARE SPECIFICATION - Volume Control FUNCTION SUBADDRESS b7 b6 b5 0 0 1 b7 Volume Control 0 0 0 1 1 1 1 1 8 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 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 REMARK 0.6 dB STEP (16) 9.6 dB STEP (8) DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01 SOFTWARE SPECIFICATION - Tone Control : Bass boost/cut1 FUNCTION SUBADDRESS b7 b6 b5 0 1 0 Bass Control 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 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 VALUE REMARK - 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 9 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR SOFTWARE SPECIFICATION - Tone Control : Treble boost/cut FUNCTION SUBADDRESS DATA BYTE VALUE REMARK 1.7 dB STEP BYTE FORMAT Treble Control 10 b7 b6 b5 b7 b6 b5 b4 b3 b2 b1 b0 0 1 0 0 0 0 0 - 11.9 dB 0 0 0 1 - 10.2 dB 0 0 1 0 - 8.5 dB 0 0 1 1 - 6.8 dB 0 1 0 0 - 5.1 dB 0 1 0 1 - 3.4 dB 0 1 1 0 - 1.7 dB 0 1 1 1 0 dB 1 1 1 1 0 dB 1 1 1 0 1.7 dB 1 1 0 1 3.4 dB 1 1 0 0 5.1 dB 1 0 1 1 6.8 dB 1 0 1 0 8.5 dB 1 0 0 1 10.2 dB 1 0 0 0 11.9 dB DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01 SOFTWARE SPECIFICATION - Fader / Miscellaneous Control DATA BYTE BYTE FORMAT FUNCTION Fader Control 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 0 0 0 0 1 1 1 1 0 0 1 1 Rear-in Control Mute External Equalizer 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 0 1 0 1 0 1 0 0 1 1 0 0 1 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 VALUE b1 X X X X X X X X X X X X X X X X X X REMARK b0 X X X X X X X X X X X X X X X X X X 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 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 1 SDA 2 22 3 23 24 STB General MICOM Interface Bus Byte Format Of S1A0501X01 Bit Stream Meanings 1-7 Chip Select Code Chip Select Code X Function Code DATA STB Signal 'LOW' STB Signal 'HIGH' = = = = = = 8 Same As I2C Bus Slave Address ( 1000000 × 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 12 9 - 16 Function Code 17 - 24 DATA DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01 Volume Step vs output Level Balance & Fader Step vs output Level Input :1Vrms Input :1Vrms Vcc=12V Vcc=12V L-OUT L-ON R-OUT L-OFF Balance/Fader(dB) SAMSUNG Electroni KB22501 EVT4 TONEƯ¼º(12V) Bass &csTreble Boost / Cut INPUT : 300mV , VR MAX Input : 300mVrm s, Volume=Max SAMSUNG Electronics& Mute KB22501 EVT4 VR or MUTE ATT Ư¼º (13V) Volume Attenuation INPUT : 1Vrms Input : 1Vrms Vcc=12V Vcc=12V »ó : VR-MIN ATTÀ² ,ÇÏ : MUTE ATTÀ² +0 +15 +10 -20 d B -40 r -60 +5 d B r +0 Volume Attenuation -5 Mute Attenuation -10 -80 -100 10 20 50 100 200 500 1k 2k 5k 10k -15 10 20k 20 50 100 200 500 1k 2k 5k 10k 20k 30k Hz Hz Color Line Style Thick Data Axis Color Line Style Thick Data SAMSUNG Electronics 2 Boost KB22501 EVT4 LOUDNESS Ư¼º(12V) Loudness Yellow Solid Anlr.Ampl Left INPUT : 300mV , VR -37.8dB Red Solid 2 Anlr.Ampl Left Input : 300mVrms, Volume=-37.8dB Green Solid 2 Vcc=12V Vcc=12V d B r Axis Total Harmonic Distortion(T.H.D.) SAMSUNG Electronics KB22501 EVT4 THD Ư¼º (13V) Blue Solid 1 Anlr.Level A Left INPUT : 1Vrms Input : 1Vrms Cyan Solid 2 Anlr.Level A Left +0 0.05 -10 0.04 Anlr.Level A Left »ó : VR -20dB , ÇÏ : VR 0dB Volume - 20 dB 0.03 -20 % -30 0.02 -40 0.01 -50 10 20 50 100 200 500 Hz 1k 2k 5k 10k 20k 30k 10 Volume 0 dB 20 50 100 200 500 1k 2k 5k 10k 20k Hz 13 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR Input CrossTalkKB22501 FUNCTION CROSS TALK Ư¼º (13V) SAMSUNG Electronics : 1Vrms Selected Input : 1Vrms,INPUT Otherwise : Short L/RElectroni Channel Separation SAMSUNG cs KB22501 L/R SEPARATION Ư¼º(13V) Selected Channel Input :1Vrms INPUT : 1Vrms Vcc=12V d B r The Other : Short, Vcc=12V +0 +0 -20 -20 -40 -60 -80 -40 r -60 -80 -100 10 20 50 100 200 500 Hz Color 14 d B Line Style Thick Data Axis 1k 2k 5k 10k 20k -100 10 20 50 100 200 500 Hz 1k 2k 5k 10k 20k DIGITAL CONTROLLED AUDIO PROCESSOR S1A0501X01 APPLICATION CIRCUIT 1 MODE I : 3 INPUTS - 1 OUTPUT VCC VDD + 0.1uF 100k 100uF 1.0uF + 0.0027uF 0.0027uF 1 VCC STB 32 2 CREF SCL 31 3 AGND SDA 30 4 LTC DREF 29 5 RTC DGND 28 100k MICOM Control Data 0.1uF + 4.7uF RIN2 RIN1 LIN3 LIN2 LIN1 LFO 27 7 RSRCOUT RFO 26 8 RVOLC LRO 25 2.2uF 0.47uF RIN3 6 RVOLIN 2.2uF + 2.2uF + 2.2uF + 0.47uF 2.2uF + 2.2uF + 2.2uF + 10uF 9 RIN3 10 RIN2 11 RIN1 12 LVOLC S1A0501X01 + RRO 24 RBC1 23 RBC2 22 LBC1 21 13 LIN3 LBC2 20 14 LIN2 LSRCOUT 19 VO(LF) + 4.7uF + 4.7uF + 4.7uF + 0.1uF VO(RF) VO(LR) VO(RR) 5.6K 0.1uF 0.1uF 5.6K 0.1uF + 2.2uF 15 LIN1 16 OCC1 LVOLIN 18 OCC2 17 10uF 15 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR APPLICATION CIRCUIT 2 MODE II : 3 INPUTS - 1 OUTPUT W/ EXT.EQUIPMENT VCC VDD + 0.1uF 100k 100uF 1.0uF + 0.0027uF 0.0027uF 1 VCC STB 32 2 CREF SCL 31 3 AGND SDA 30 4 LTC DREF 29 5 RTC DGND 28 2.2uF + + 0.47uF RIN3 RIN2 RIN1 LIN3 LIN2 LIN1 2.2uF + 2.2uF + 2.2uF + 0.47uF 2.2uF + 2.2uF + 2.2uF + 10uF MICOM Control Data 0.1uF + 4.7uF 6 RVOLIN 7 RSRCOUT 8 RVOLC 9 RIN3 10 RIN2 LFO 27 S1A0501X01 EXTERNAL EQUIPMENT 100k RFO 26 LRO 25 RRO 24 RBC1 23 11 RIN1 RBC2 22 12 LVOLC LBC1 21 13 LIN3 LBC2 20 14 LIN2 LSRCOUT 19 15 LIN1 LVOLIN 18 16 OCC1 OCC2 17 VO(LF) + 4.7uF + 4.7uF + 4.7uF + 0.1uF VO(RF) VO(LR) VO(RR) 5.6K 0.1uF 0.1uF 5.6K 0.1uF 2.2uF + 2.2uF EXTERNAL EQUIPMENT + 10uF 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 VDD + 0.1uF 100k 100uF 1.0uF + 0.0027uF 0.0027uF 1 VCC STB 32 2 CREF SCL 31 3 AGND SDA 30 4 LTC DREF 29 5 RTC DGND 28 100k 100k MICOM Control Data 0.1uF + 6 RVOLIN 2.2uF 7 RSRCOUT 0.47uF RIN3 RIN2 RIN1 LIN3 LIN2 LIN1 2.2uF + 2.2uF + 2.2uF + 0.47uF 2.2uF + 2.2uF + 2.2uF + 10uF 8 RVOLC 9 RIN3 10 RIN2 S1A0501X01 4.7uF + LFO 27 RFO 26 LRO 25 RRO 24 RBC1 23 11 RIN1 RBC2 22 12 LVOLC LBC1 21 13 LIN3 LBC2 20 14 LIN2 LSRCOUT 19 VO(LF) + 4.7uF + 4.7uF + 4.7uF + 0.1uF VO(RF) VO(LR) VO(RR) 5.6K 0.1uF 0.1uF 5.6K 0.1uF + 2.2uF 15 LIN1 16 OCC1 LVOLIN 18 OCC2 17 10uF 17 S1A0501X01 DIGITAL CONTROLLED AUDIO PROCESSOR NOTES 18