MOSA MS6258 Gain And Attenuation Volume Controller IC Gain and Attenuation Volume Controller IC 4 Sets of Stereo Input, Low voltage Gain and Attenuation 15~-79dB FEATURES APPLICATIONS ‧ ‧ ‧ ‧ ‧ Multimedia system. ‧ Hi-Fi audio system. ‧ MP3，PDA. Operation range: 2.7V~6.5V. Low power consumption. Gain/Attenuation: 15dB to –79dB. +1dB/step, -1dB/step and -10dB/step are controlled independently. ‧ Good PSRR and low pop noise. ‧ I2C interface. ‧ Housed in 16 pin SOP, SSOP package. DESCRIPTION The MS6258 is a stereo audio volume controller IC with 4 sets of stereo input. It uses CMOS technology specially for the low voltage application with low noise, rail-to-rail output. The MS6258 provide an I2C control interface with gain / attenuation range of 15dB to -79dB. The gain and attenuation, +1dB/step, -1dB/step and -10dB/step are controlled independently. The initial condition is set to be maximum attenuation –79dB (-70dB + -9dB), gain 0dB and mute on mode when the power is up. BLOCK DIAGRAM L-IN1 L-IN2 L-IN3 L-IN4 Gain 0~15dB 1dB/Step Attenuation 0~-79dB -1dB/Step -10dB/Step Mute Control Serial Bus Decoder and Latches R-IN1 R-IN2 R-IN3 R-IN4 1dB/Step -1dB/Step Gain 0~15dB L-OUT -10dB/Step R-OUT Attenuation 0~-79dB REF Reference Circuit I2C Interface SDA REV 6 SCL 1 VREF www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC PIN CONFIGURATION Symbol Pin Description A.O. 1 Address option * L-IN4 2 4th left channel input L-IN3 3 3rdleft channel input L-IN2 4 2nd left channel input L-IN1 5 1st left channel input L-OUT 6 Left channel output VSS 7 Ground SDA 8 A.O. 1 16 VREF L-IN4 2 15 R-IN4 L-IN3 3 14 R-IN3 L-IN2 4 2 2 9 I C clock input VDD 10 Positive supply voltage R-OUT 11 Right channel output 13 R-IN2 MS6258 I C data input SCL MS6258 L-IN1 5 12 R-IN1 L-OUT 6 11 R-OUT VSS 7 10 VDD SDA 8 9 st R-IN1 12 1 right channel input R-IN2 13 2nd right channel input rd R-IN3 14 3 right channel input R-IN4 15 4th right channel input VREF 16 Reference voltage = 1/2VDD SCL Note: 1. Pin 1 is set to Lo or open , the address code is 88H (10001000B). 2. Pin 1 is set to Hi , the address code is 8CH (10001100B). 3. The VREF connects a capacitor to Vss. ORDERING INFORMATION Package Part number Packaging Marking Transport Media 16-Pin SOP (lead free) MS6258GTR MS6258ASG 2.5k Units Tape and Reel 16-Pin SOP (lead free) MS6258GU MS6258ASG 50 Units Tube 16-Pin SSOP (lead free) MS6258SSGTR MS6258G 2.5k Units Tape and Reel 16-Pin SSOP (lead free) RoHS Compliance MS6258SSGU MS6258G 100 Units Tube ABSOLUTE MAXIMUM RATINGS Symbol Parameter VDD Supply Voltage VESD Electrostatic Handling TSTG Storage Temperature Range TA Operating Ambient Temperature Range TJ Rating Unit 6.5 V -4500 to 4500 -65 to 150 V ℃ -40 to 85 ℃ Maximum Junction Temperature 150 ℃ TS Soldering Temperature, 10 seconds 260 ℃ RTHJA Thermal Resistance from Junction to Ambient in Free Air SOP16 SSOP16 210 210 ℃/W REV 6 2 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC OPERATING RATINGS Symbol VDD Parameter Supply Voltage Min Typ Max Unit 2.7 - 6.5 V 5V ELECTRICAL CHARACTERISTICS (VDD=5.0V, VSS=0V, Attenuation=0dB, Gain=0dB, f=1kHz, VO=0dBV, VREF Cap=10uF; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics IQ Quiescent current AGA Gain/Attenuation ASTEP - 3.8 4.2 mA Max gain - 15 - dB Max attenuation - -79 - dB Gain/Attenuation step - 1 - dB EGA Gain/Attenuation step error - 0.3 - dB CS Channel separation 95 105 - dB PSRR Power supply rejection ratio Vripple = -20dBV, 100Hz - 53 - dB MUTE Mute Attenuation Vin=0dBV - 85 - Rin Input Impedance 18 20 - dB kΩ Rout Output Impedance - 50 100 Ω - 4.8 - Vpp - -69 -64 dB 95 100 - dB AC Characteristics Vo Maximum output voltage swing THD+N Total harmonic distortion plus noise S/N Signal-to-noise ratio (THD+N)/S < 0.1% VO=4.5Vpp Bus Characteristics VIH Bus high input level - - 0.7VDD V VIL Bus low input level 0.3VDD - - V REV 6 3 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC 3.3V ELECTRICAL CHARACTERISTICS (VDD=3.3V, VSS=0V, Attenuation=0dB, Gain=0dB, f=1kHz, VO=-3dBV, VREF Cap=10uF; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics IQ Quiescent current CS Channel separation PSRR Power supply rejection ratio MUTE Mute Attenuation - 3.7 4.1 mA 90 100 - dB Vripple = -20dBV, 100Hz - 52 - dB Vin=-3dBV - 80 - dB (THD+N)/S < 0.1% - 3 - Vpp - -69 -64 dB 85 90 - dB AC Characteristics Vo Maximum output voltage swing THD+N Total harmonic distortion plus noise S/N Signal-to-noise ratio 2.7V ELECTRICAL CHARACTERISTICS (VDD=2.7V, VSS=0V, Attenuation=0dB, Gain=0dB, f=1kHz, VO=-3dBV, VREF Cap=10uF; unless otherwise specified) Symbol Parameter Conditions Min Typ Max Unit DC Characteristics IQ Quiescent current - 3.2 3.6 mA CS Channel separation 90 100 - dB PSRR Power supply rejection ratio Vripple = -20dBV, 100Hz - 50 - dB MUTE Mute Attenuation Vin=-3dBV - 80 - dB (THD+N)/S < 0.3% - 2 - Vpp - -69 -64 dB 85 90 - dB AC Characteristics Vo Maximum output voltage swing THD+N Total harmonic distortion plus noise S/N Signal-to-noise ratio REV 6 4 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC TYPICAL PERFORMANCE CHARACTERISTICS (Ta=25℃, VREF Cap=10uF; unless otherwise specified) THD+N (%) f=20Hz THD+N (%) f=20Hz THD+N (%) f=20Hz f=20kHz f=1kHz f=1kHz VDD=5V VDD=3.3V f=20kHz VDD=2.7V OUTPUT VOLTAGE (dBV) OUTPUT VOLTAGE (dBV) THD+N vs. output voltage THD+N vs. output voltage VDD=5V VO=0dBV VDD=3.3V VO=-3dBV VDD=2.7V VO=-3dBV VDD=3.3V VO=-3dBV VDD=2.7V VO=-3dBV VDD=5V VO=0dBV QUIESCENT CURRENT (mA) OUTPUT VOLTAGE (dBV) THD+N vs. output voltage CHANNEL SEPARATION (dB) THD+N (%) f=1kHz f=20kHz FREQUENCY (Hz) FREQUENCY (Hz) SUPPLY VOLTAGE (V) THD+N vs. frequency Channel separation vs. frequency Quiescent current vs. supply voltage CAP=22uF CAP=22uF CAP=2.2uF CAP=10uF CAP=2.2uF PSRR (dB) CAP=10uF PSRR (dB) PSRR (dB) CAP=22uF CAP=10uF CAP=2.2uF VDD=5V VRR=-20dBV REV 6 VDD=3.3V VRR=-20dBV VDD=2.7V VRR=-20dBV FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) PSRR vs. frequency PSRR vs. frequency PSRR vs. frequency 5 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC I2C BUS DESCRIPTION Start and stop conditions A start condition is activated when the SCL is set to HIGH and SDA shifts from HIGH to LOW state. The stop condition is activated when SCL is set to HIGH and SDA shifts from LOW to HIGH state. Please refer to the timing diagram below. SCL SDA Stop Start SCL : Serial Clock Line, SDA : Serial Data Line Data validity A data on the SDA line is considered valid and stable only when the SCL signal is in HIGH state. The HIGH and LOW states of the SDA line can only change when the SCL signal is LOW. Please refer to the figure below. SDA SCL Data line stable, Data valid Data change allowed Byte format Every byte transmitted to the SDA line consists of 8 bits. Each byte must be followed by an acknowledge bit. The MSB is transmitted first. Acknowledge During the Acknowledge clock pulse, the master (up) put a resistive HIGH level on the SDA line. The peripheral (audio processor) that acknowledges has to pull-down (LOW) the SDA line during the Acknowledge clock pulse so that the SDA line is in a stable LOW state during this clock pulse. Please refer to the diagram below. SCL 1 2 3 7 8 9 SDA MSB Acknowledge Start The audio processor that has been addressed has to generate an Acknowledge after receiving each byte, otherwise, the SDA line will remain at the HIGH level during the ninth (9th) clock pulse. In this case, the master transmitter can generate the STOP information in order to abort the transfer. REV 6 6 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC Timing of SDA and SCL bus lines SDA tf tLOW SCL S tHD;STA tSU;DAT tr tHD;DAT Standard mode Symbol fSCL tHD;STA tf tHIGH tSU;STA Parameter Sr tSP tBUF tr tSU;STO P S Min Max Unit 0 100 kHz 4.0 - us tLOW SCL clock frequency Hold time (repeated) START condition. After this period, the first clock pulse is generated LOW period of the SCL clock 4.7 - us tHIGH HIGH period of the SCL clock 4.0 - us tSU:STA 4.7 - us 0 3.45 us tSU:DAT Set-up time for a repeated START condition Data hold time: For I2C-bus devices Data-set-up time 250 - ns tr Rise time of both SDA and SCL signals - 1000 ns tf Fall time of both SDA and SCL signals - 300 ns tSU:STO Set-up time for STOP condition 4.0 - us tBUF Bus free time between a STOP and START condition 4.7 - us Cb Capacitive load for each bus line - 400 pF VnL Noise margin at the LOW level for each connected device (including 0.1VDD hysteresis) - V VnH Noise margin at the HIGH level for each connected device (including 0.2VDD hysteresis) - V tHD:STA tHD:DAT REV 6 7 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC BUS INTERFACE Data are transmitted to and from the MCU to the MS6258 via the SDA and SCL. The SDA and SCL make up the BUS interface. It should be noted that pull-up resistors must be connected to the positive supply voltage. VDD Rp Rp Pull up resistors SDA (Serial Data Line) SCL (Serial Clock Line) MCU MS6258 Interface protocol The format consists of the following ‧A START condition ‧A chip address byte including the MS6258 address. (7bits) ‧The 8th bit of the byte must be “0”.(write=0, read=1) ‧MS6258 must always acknowledge the end of each transmitted byte. ‧A data sequence (N-bytes + Acknowledge) ‧A STOP condition SDA SCL 1-7 8 9 1-7 ADDRESS -R /W ACK 8 9 1-7 8 9 S START CONDITION P DATA ACK DATA ACK STOP CONDITION Protocol Address Pin1(A.O.) = High Pin1(A.O.) = Low or Open 1 0 0 0 1 0 7 bits address 0 0 1 W 0 0 1 1 7 bits address MS6258 address REV 6 0 0 0 W MS6258 address 8 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC Data bytes description Function bits MSB LSB Function 1 1 1 1 1 1 1 1 Function off (-79dB) 1 1 0 1 A3 A2 A1 A0 2-channel, -1dB/step 1 1 1 0 0 B2 B1 B0 2-channel, -10dB/step 1 0 1 0 A3 A2 A1 A0 Left channel, -1dB/step 1 0 1 1 0 B2 B1 B0 Left channel, -10dB/step 0 0 1 0 A3 A2 A1 A0 Right channel, -1dB/step 0 0 1 1 0 B2 B1 B0 Right channel, -10dB/step 1 1 0 0 C3 C2 C1 C0 2-channel, +1dB/step 0 1 1 0 C3 C2 C1 C0 Left channel, +1dB/step 0 1 0 1 C3 C2 C1 C0 Right channel, +1dB/step 0 0 0 0 Stereo1 0 0 0 1 Stereo2 0 1 0 1 0 0 1 1 0 0 1 0 Stereo3 0 0 1 1 Stereo4 0 0 0 1 Power off preparation (pop noise free) 1 0 0 1 2-channel, mute On 1 0 0 0 2-channel, mute Off Gain / Attenuation bits A3 A2 A1 A0 - B2 B1 B0 C3 C2 C1 C0 0 0 0 0 0 0 Attenuation (dB) A B C 0 0 0 0 0 1 -1 -10 +1 0 1 0 -2 -20 +2 0 0 1 1 -3 -30 +3 0 1 0 0 -4 -40 +4 0 1 0 1 -5 -50 +5 0 1 1 0 -6 -60 +6 0 1 1 1 -7 -70 +7 1 0 0 0 -8 - +8 1 0 0 1 -9 - +9 1 0 1 0 - - +10 1 0 1 1 - - +11 1 1 0 0 - - +12 1 1 0 1 - - +13 1 1 1 0 - - +14 - +15 1 1 1 1 1. Attenuation bit, Ax = -1dB/step, Bx = -10dB/step 2. Gain bit, Cx = +1dB/step 3. Total gain / attenuation equal Ax + Bx + Cx. 4. The function of power off preparation is to prevent pop noise when power off. REV 6 Gain (dB) 9 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC Example Mute off The initial condition is –79dB and mute on when power on. The first command must disable the mute function. MSB Start 1 Data byte LSB 0 0 0 1 0 0 0 ACK 0 1 1 MS6258 address 1 1 0 0 0 ACK Stop 2-ch, Mute off Set gain of 2 channel at 0dB, and selected stereo 1 input. Start MS6258 Address ACK 1 1 1 0 0 0 0 0 ACK 1 2-ch, -10dB/step, 0dB 1 1 0 0 0 0 0 0 0 ACK 1 0 0 0 0 1 0 1 0 0 0 0 ACK 0 ACK 0 ACK 1 ACK 2-ch, -1dB/step, 0dB 0 0 ACK Stop Stereo 1 input 2-ch, +1dB/step, 0dB Set gain of 2 channel at 6dB, and selected stereo 2 input. The value of attenuation must be set zero when the volume from attenuation to gain. Start MS6258 Address ACK 1 1 1 0 0 0 0 0 ACK 1 2-ch, -10dB/step, 0dB 1 1 0 0 0 1 1 0 0 ACK 1 0 2-ch, +1dB/step, 6dB 0 0 0 1 0 1 0 0 0 2-ch, -1dB/step, 0dB 0 1 ACK Stop Stereo 2 input Set gain of 2 channel at -3dB, and selected stereo 3 input. The value of gain must be set zero when the volume from gain to attenuation. Start MS6258 Address ACK 1 1 0 0 0 0 0 0 ACK 1 2-ch, +1dB/step, 0dB 1 1 0 1 0 0 1 1 ACK 0 1 0 2-ch, -1dB/step, -3dB 0 0 0 1 1 0 0 0 0 2-ch, -10dB/step, 0dB 1 0 ACK Stop Stereo 3 input Set attenuation of left channel at –33dB, and selected stereo 4 input. Start MS6258 Address ACK 1 0 1 1 0 0 1 1 L-ch, -10dB/step, -30dB 0 1 0 0 0 0 1 1 ACK ACK 1 0 1 0 0 0 1 L-ch, -1dB/step, -3dB Stop Stereo 4 input REV 6 10 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC An example of the volume control. (Volume = Ax + Bx + Cx) Set two channels at 0dB. (Ax + Bx + Cx = 0dB + 0dB + 0dB) next, the volume changes from 0dB to -9dB. (Ax + Bx + Cx = -9dB + 0dB + 0dB) next, the volume changes from -9dB to -19dB. (Ax + Bx + Cx = -9dB + -10dB + 0dB) next, the volume changes from -19dB to -20dB. (Ax + Bx + Cx = 0dB + -20dB + 0dB) Start MS6258 Address ACK 1 1 1 0 0 0 1 2-ch, -10dB/step, -20dB 0 ACK 1 1 0 1 0 0 0 0 ACK Stop 2-ch, -1dB/step, 0dB next, the volume changes from -20dB to -14dB. (Ax + Bx + Cx = 0dB + -20dB + 6dB) next, the volume changes from -14dB to +6dB. (Ax + Bx + Cx = 0dB + 0dB + 6dB) Note: We suggest the gain is set as the power is up. For example, set and fix the gain +10dB, the volume range will be controlled from +10dB to –69dB. REV 6 11 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC APPLICATION INFORMATION Basic application example MS6258 8 SDA VDD 10 MCU 9 SCL 10uF 10uF 5 L-IN1 Lo : Addr 10001000B Hi : Addr 10001100B Stereo Signal 2 10uF 10uF 10uF 10uF 10uF L-OUT 13 R-IN2 6 10k 3 L-IN3 R-OUT 11 10uF Power Amplifier 10k 14 R-IN3 10uF Stereo Signal 4 16 4 L-IN2 10uF Stereo Signal 3 VREF 12 R-IN1 10uF 47uF VSS 7 A.O 1 Stereo Signal 1 Supply 0.1uF 2 L-IN4 15 R-IN4 Basic application flowchart Procedure Of Power Up Procedure Of Power Down Power up VDD = 5V Volume Control for Attenuation volume down to -79 dB step by step Initial Conditions function off (-79dB) mute on Enable Mute Function mute on Pop Noise Free wait 1 sec Pop Noise Free power off preparation wait 0.5 sec Disable Mute Function mute off Power down VDD = 0V Setting Gain Set the max signal Volume Control for Attenuation volume up/down step by step 1. The initial condition is –79dB, gain 0dB and mute on when power on. 2. In order to prevent pop noise when power on, please wait 1 sec to transmit I2C command. REV 6 12 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC EXTERNAL DIMENSIONS SOP16 D Detail A F H Symbol A A1 B C e D H E L h θ h x 45 C A e B Dimension in mm Dimension in inch Min Max Min Max 1.35 1.75 0.0532 0.0688 0.10 0.25 0.0040 0.0098 0.33 0.51 0.013 0.020 0.19 0.25 0.0075 0.0098 1.27 BSC 0.050 BSC 9.80 10.00 0.3859 0.3937 5.80 6.20 0.2284 0.2440 3.80 4.00 0.1497 0.1574 0.40 1.27 0.016 0.050 0.25 0.50 0.0099 0.0196 o o o 8 0 8o 0 A1 0.25mm θ L Detail A SSOP16 D Detail A Symbol A A1 A2 b c e D E E1 L h L1 ZD R1 R θ θ1 θ2 E1 E H x 45 c ZD A2 A θ2 e b Dimension in mm Dimension in inch Min Max Min Max 1.35 1.75 0.053 0.069 0.10 0.25 0.004 0.010 1.50 0.059 0.20 0.30 0.008 0.012 0.18 0.25 0.007 0.010 0.635 BASIC 0.025 BASIC 4.80 5.00 0.189 0.197 5.79 6.20 0.228 0.244 3.81 3.99 0.150 0.157 0.41 1.27 0.016 0.050 0.25 0.50 0.010 0.020 0.254 BASIC 0.010 BASIC 0.229 REF 0.009 REF 0.20 0.33 0.008 0.013 0.20 0.008 o o o 8 0 8o 0 0o 0o 15o 5o 15o 5o θ1 A1 R1 L1 R θ Detail A REV 6 13 L www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC TAPE AND REEL (Unit : mm) SOP16 2.00 1.0 1.50 MIN 4.00 0.30 1.5 +0.1/-0.0 0.5 A 1.75 1.0 7.5 0.1 R 0.3 MAX 16.0 10.30 2.10 0.3 A 6.50 R 0.5 TYP 8.00 SECTION A - A SSOP16 2.0 0.30 0.05 0.05 1.5+0.1/-0.0 DIA 4.0 1.75 0.3R MAX 5.5 0.05 12.0 0.3 5.4 3.0 3.6 8.0 1.5 MIN 6.9 0.5 Radius Typical 2.0 1.7 REV 6 14 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC DEMO BOARD 1 3 1 6 5 2 4 Function description Label 1: Supply Voltage The AVDD and DVDD should be the same supply voltage, the supply range is 2.7~6.5 VDC. Label 2: LED Indicator The LEDs indicate the chip status and IR received status. It keeps on a light state when the MS6257 is active. The other hand, keeps on a dark state when the MS6257 is power-off. It is red-dark blink once when the MCU has received the function code correctly. Label 3: Reset All I/O pins are reset to default values. Volume 0dB and Mute on. Label 4: Input section Please input stereo audio signal, as music or sine wave. Label 5: I2C Address option As the jump is closed, the address code is 88H. As the jump is open, the address code is 8CH. Label 6: Output section Please connected to a post-power-amplifier, as stereo speaker. REV 6 15 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC IR Controller 2-CH+ : The volume-up switch for stereo channel The volume increase by +1dB as the switch is pressed once, the maximum value is up to +15dB. The default value is 0dB on initial status. L-channel and R-channel are active synchronic. 2-CH- : The volume-down switch for stereo channel The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -79dB. L-channel and R-channel are active synchronic. LCH+ : The volume-up switch for left channel The volume increase by +1dB as the switch is pressed once, the maximum value is up to +15dB. LCH- : The volume-down switch for left channel The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -79dB. RCH+ : The volume-up switch for right channel The volume increase by +1dB as the switch is pressed once, the maximum value is up to +15dB. RCH- : The volume-down switch for right channel The volume decrease by -1dB as the switch is pressed once, the minimum value is up to -79dB. MUTE : Press the switch once to enter mute-on or mute-off. The default status is mute-off on initial status. IN1~IN4 : Stereo channel selection There are four sets, stereo 1 to 4. The default channel is stereo 1 on initial status. REV 6 16 www.mosanalog.com MOSA MS6258 Gain And Attenuation Volume Controller IC Circuit J1 220 1 2 3 0.1u RX TX + C14 10u RST R4 LCD C4 1 RX 2 3 TX 4 5 IR_IN 6 7 SCL 8 SDA 9 10 10K + 20P J4 Y1 12M AVDD C5 + 2 1 + C2 10u S1 C1 47u R2 10K U1 RST P3.0 P3.1 XTAL2 XTAL1 P3.2 P3.3 P3.4 P3.5 GND 20 19 18 17 16 15 14 13 12 11 Vcc P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 P1.0 P3.7 + J2 3 2 R3 1K IR_IN 1 + C3 J9 D1 LED VS GND IR IR 470p A.O. 2 1 + C13 DVCC J3 R1 DVCC 1 2 AT89CX51 20P AVDD J7 + C7 0.1u + C6 10u 1 3 5 7 9 2 4 6 8 10 INPUT C15 10u J10 + C16 10u C17 10u IN3 J12 C18 10u C19 10u IN2 J6 C20 + IN4 J11 J8 OUTPUT + + + + IN1 10u 10u CAP R-IN4 R-IN3 R-IN2 R-IN1 R-OUT VDD SCL 1 2 3 16 15 14 13 12 11 10 AVDD 9 SCL + + C11 MS6258 A.O. L-IN4 L-IN3 L-IN2 L-IN1 L-OUT VSS SDA 10u C8 J5 C10 OUTPUT + + C9 10u U3 1 2 3 4 5 6 7 SDA 8 10u R5 R6 10K 10K R9 R10R11R12R13R14R7 R8 + C12 10u 10K10K10K10K10K10K10K10K W1 Jumper REV 6 17 www.mosanalog.com