MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers 16-bit Stereo Audio DAC Dual 1.6W Power Amplifiers FEATURES •Operation range: 2.4V~6.5V •16-bit resolution audio DAC •Output mode : Speaker( BTL)/Headphone(SE) •BTL Output power, THD+N<0.16% RL=4Ω, 1.6W at 5V, 0.70W at 3.3V, 340mW at 2.4V RL=8Ω, 0.83W at 5V, 0.35W at 3.3V, 170mW at 2.4V •SE Output power, THD+N<0.1% RL=32Ω, 46mW at 5V, 20mW at 3.3V, 10mW at 2.4V •Audio format : I2S, Right justified, Left justified •Control interface : I2C •Excellent Power Supply Rejection Ratio(PSRR) •Flexibility power management •Component less •Reduce pop noise circuit •Housed in TSSOP16(enhanced thermal PAD) , SSOP20(209mils) package APPLICATIONS Multimedia system, Portable Digital Audio. DESCRIPTION The MS6336 is a 16-bits voltage-output Digital-to-Analog Converter (DAC) integrated class AB stereo headphone driver and stereo speaker power amplifier. It can drive 1.6W of continuous average power into a dual 4Ω bridged-tied (BTL) speaker or 2 * 46mW into stereo 32Ω single ended (SE) headphone. The 16-bit DAC supports popular formats as I2S, Right Justified, and Left Justified. All of the functions are set by I2C interface. The MS6336 has good features for portable equipment, including wide voltage operation 2.4V ~ 6.5V, low power consumption, flexible power management, component less, make the MS6336 ideally suitable for use in the portable digital audio equipments. BLOCK DIAGRAM BCK WS -1 OUTR- 16-bit Audio DAC DATA -1 -1 OUTL- -1 I2C Interface Supply AVDD AVSS REV 4 CAP SCL SDA 1/21 OUTR+ OUTL+ Power Amplifier Supply PVDDL PVSSL PVDDR PVSSR www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers PIN CONFIGURATION Symbol Description Pin WS 1 Audio word select input BCK 2 Audio bit clock input CAP 3 Capacitor connected AVSS 4 OUTR- 5 PVDDR 6 OUTR+ 7 PVSSR 8 PVSSL 9 OUTL+ 10 PVDDL 11 OUTL- 12 AVDD 13 Negative supply voltage SE right channel output or negative output of BTL right channel Positive supply voltage for right channel of power amplifier Positive output of BTL right channel Negative supply voltage for right channel of power amplifier Negative supply voltage for left channel of power amplifier Positive output of BTL left channel Positive supply voltage for left channel of power amplifier SE left channel output or negative output of BTL left channel Positive supply voltage SDA 14 I2C data input SCL 15 I2C clock input WS 1 16 DATA BCK 2 15 SCL CAP 3 14 SDA AVSS 4 13 AVDD Thermal Pad OUTR- 5 12 OUTL- PVDDR 6 11 PVDDL OUTR+ 7 10 OUTL+ PVSSR 8 9 PVSSL MS6336, TSSOP16 DATA 16 Audio data input Note: 1. SE: Single Ended. BTL: Bridged-Tied Load Symbol WS Pin 1 Description Audio word select input BCK 2 Audio bit clock input CAP 3 Capacitor connected AVSS 5 OUTR- 6 PVDDR 7 OUTR+ 8 PVSSR 10 PVSSL 11 OUTL+ 13 PVDDL 14 OUTL- 15 AVDD 16 Negative supply voltage SE right channel output or negative output of BTL right channel Positive supply voltage for right channel of power amplifier Positive output of BTL right channel Negative supply voltage for right channel of power amplifier Negative supply voltage for left channel of power amplifier Positive output of BTL left channel Positive supply voltage for left channel of power amplifier SE left channel output or negative output of BTL left channel Positive supply voltage SDA 18 I2C data input SCL DATA NC REV 4 19 20 4,9, 12,17 WS 1 20 DATA BCK 2 19 SCL CAP 3 18 SDA NC 4 17 NC AVss 5 16 AVDD OUTR- 6 15 OUTL- PVDDR 7 14 PVDDL OUTR+ 8 13 OUTL+ NC 9 12 NC PVSSR 10 11 PVSSL MS6336, SSOP20(209mils) 2 I C clock input Audio data input No Connect 2/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers ORDERING INFORMATION Package Part number Packaging Marking Transport Media 16Pin TSSOP (lead free) MS6336TGTR MS6336G 2.5k Units Tape and Reel 16Pin TSSOP (lead free) MS6336TGU MS6336G 90 Units Tube 20Pin SSOP (lead free) MS6336SSGTR MS6336G 2k Units Tape and Reel 20Pin SSOP (lead free) RoHS Compliance MS6336SSGU MS6336G 66 Units Tube ABSOLUTE MAXIMUM RATINGS Symbol Parameter Rating Unit 6.5 V 2000 V Storage temperature range -65 to 150 ℃ TA Operating ambient temperature range -40 to 85 ℃ TJ Maximum junction temperature 150 ℃ TS Soldering temperature, 10 seconds Thermal resistance from junction to ambient in free air TSSOP16 (enhanced thermal pad) SSOP20 260 ℃ 51 110 ℃/W VDD Supply voltage VESD Electrostatic handling TSTG RTHJA OPERATING RATINGS Symbol VDD Parameter Supply voltage Min Typ Max Unit 2.4 5 6.5 V Max Unit 5V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=5V, VSS=0V, Sampling rate 4fs, fs= 44.1kHz, f=1kHz; unless otherwise specified) Symbol Parameter Conditions Min Typ DC Characteristics VCAP Voltage at CAP VDC Output DC level VFSDAC Full scale output voltage of DAC IQ Quiescent current IPD Power down current CS Channel separation REV 4 VFS=0.72 * VDD Audio code 0000H, BTL Audio code 0000H, SE L-ch (R-ch) PD, BTL DAC active L-ch (R-ch) PD, SE DAC active All devices power down All devices power down, except CAP=1/2 VDD BTL Mode, RL=8Ω, VFS SE Mode, RL=32Ω, VFS 3/21 0.5VDD -0.05 0.5VDD -0.05 VFS-1.5% - 0.5VDD 0.5VDD VFS 12.3 9.5 0.5VDD +0.05 0.5VDD +0.05 VFS+1.5% - - 6.5 - - - 0.3 - 90 V uA 12 95 V mA 8 - V - dB - dB www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers AC Characteristics Res PSRR Resolution Power supply rejection ratio THD+N Total harmonic distortion plus Noise S/N Signal-to-noise ratio Po Maximum output power BTL Mode , RL=8Ω CAP=1uF, f=200Hz SE Mode , RL=32Ω CAP=1uF, f=200Hz SE mode, RL=32Ω, VFS SE mode, A-weighting, VFS BTL Mode, RL = 4Ω THD+N = 0.33% BTL Mode, RL = 8Ω THD+N = 0.15 % SE Mode, RL = 32Ω THD+N = 0.042% - - 16 bits - 58 - dB - 65 - dB - -67 -62 dB - 0.0447 0.079 % 86 92 - dB 1.44 1.6 - W 0.75 0.83 - W 41.4m 46m - W Bus Characteristics VI2CH Serial interface high input level 2 - - V VI2CL Serial interface low input level - - 0.8 V Unit 3.3V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=3.3V, VSS=0V, Sampling rate 4fs, fs= 44.1kHz, f=1kHz; unless otherwise specified) Parameter Symbol Conditions Min Typ Max - 10.9 8.3 - DC Characteristics IQ Quiescent current Audio code 0000H, BTL Audio code 0000H, SE L-ch (R-ch) PD, BTL DAC active L-ch (R-ch) PD, SE DAC active mA 6.9 - 5.5 - - -65 60 dB - 0.0562 0.1 % 0.63 0.70 - W 0.32 0.35 - W 18m 20m - W AC Characteristics THD+N Po REV 4 Total harmonic distortion plus Noise SE mode, RL=32Ω, VFS Maximum output power BTL Mode, RL = 4Ω THD+N = 0.25% BTL Mode, RL = 8Ω THD+N = 0.14 % SE Mode, RL = 32Ω THD+N = 0.052% 4/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers 2.4V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=2.4V, VSS=0V, Sampling rate 4fs, fs= 44.1kHz, f=1kHz; unless otherwise specified) Parameter Symbol Conditions Min Typ Max - 9.6 6.8 - Unit DC Characteristics IQ Quiescent current Audio code 0000H, BTL Audio code 0000H, SE L-ch (R-ch) PD, BTL DAC active L-ch (R-ch) PD, SE DAC active mA 5.8 - 4.7 - AC Characteristics THD+N Po REV 4 Total harmonic distortion plus Noise SE mode, RL=32Ω, VFS Maximum output power BTL Mode, RL = 4Ω THD+N = 0.85% BTL Mode, RL = 8Ω THD+N = 0.17 % SE Mode, RL = 32Ω THD+N = 0.07% 5/21 - -63 -58 dB - 0.071 0.126 % 0.31 0.34 - W 0.15 0.17 - W 9m 10m - W www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers TYPICAL PERFORMANCE CHARACTERISTICS BTL,4ohm, f=1kHz, VFS BTL, 8ohm f=1kHz, VFS SE, 32ohm f=1kHz, VFS SUPPLY VOLTAGE (V) THD+N vs. supply voltage THD+N (%) THD+N (%) SUPPLY VOLTAGE (V) THD+N vs. supply voltage THD+N (%) SUPPLY VOLTAGE (V) THD+N vs. supply voltage VDD=5V, VFS BTL, 4ohm VDD=3.3V, VFS BTL, 4ohm VDD=2.4V, VFS BTL, 4ohm THD+N (%) FREQUENCY (Hz) THD+N vs. frequency THD+N (%) FREQUENCY (Hz) THD+N vs. frequency THD+N (%) FREQUENCY (Hz) THD+N vs. frequency VDD=5V, VFS BTL, 8ohm REV 4 THD+N (%) THD+N (%) THD+N (%) (Ta=25℃, sampling rate=4fs, fs= 44.1kHz; unless otherwise specified) VDD=3.3V, VFS BTL, 8ohm VDD=2.4V, VFS BTL, 8ohm FREQUENCY (Hz) FREQUENCY (Hz) FREQUENCY (Hz) THD+N vs. frequency THD+N vs. frequency THD+N vs. frequency 6/21 www.mosanalog.com MS6336 VDD=3.3V, VFS SE, 32ohm VDD=2.4V, VFS SE, 32ohm FREQUENCY (Hz) FREQUENCY (Hz) THD+N vs. frequency THD+N vs. frequency THD+N vs. frequency VFS ,f=1kHz BTL, 8ohm QUIESCENT CURRENT (mA) FREQUENCY (Hz) CHANNEL SEPARATION (dB) CHANNEL SEPARATION (dB) VDD=5V, VFS SE, 32ohm THD+N (%) 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers THD+N (%) THD+N (%) MOSA VFS ,f=1kHz SE, 32ohm BTL SE All Devices activate. SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) Channel separation vs. supply voltage Channel separation vs. supply voltage Quiescent current vs. supply voltage CAP=1uF VDD=5V SE, 32ohm VDD=5V BTL, 8ohm REV 4 PSRR (dB) PSRR (dB) CAP=1uF QUIESCENT CURRENT (mA) CAP=10u CAP=10u BTL SE LPD or RPD DAC activates. FREQUENCY (Hz) FREQUENCY (Hz) SUPPLY VOLTAGE (V) PSRR vs. frequency PSRR vs. frequency Quiescent current vs. supply voltage 7/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers AUDIO TIMING AND FORMAT The MS6336 accepts input serial data formats of 16-bit word length. Left and right data words are time multiplexed. The MSB must always be first. LEFT WS RIGHT tr tHB tf tLB tHW tSW BCK tcr DATA tSD LSB Audio data format (BCK, WS, DATA) Parameter Symbol tHD MSB Conditions Min Typ Max Unit VIL Input LOW level 2 - - V VIH Input HIGH level - - 0.8 V f BCK Input Clock Frequency - - 18.4 MHz BR Bit Rate Data Input - - 18.4 Mbits/s fWS Word Select Input - - 384 kHz tr tf t Cr t HB t LB t SD t HD t HW t SW Rise Time - - 12 ns Fall Time - - 12 ns Bit Clock Cycle Time 54 - - ns Bit Clock High Time 15 - - ns Bit Clock Low Time 15 - - ns Data Set-up Time 12 - - ns Data Hold Time to Bit Clock 2 - - ns Word Select Hold Time 2 - - ns Word Select Set-up Time 12 - - ns REV 4 8/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers Right justified format LEFT WS RIGHT BCK DATA 2 1 0 15 14 13 2 1 MSB 0 15 LSB MSB 14 13 2 1 0 LSB Left justified format LEFT WS RIGHT BCK DATA 15 14 13 2 MSB 1 0 15 LSB MSB 14 13 2 1 0 15 LSB MSB I2S format WS LEFT RIGHT BCK 1 BCK DATA 15 MSB REV 4 14 1 BCK 13 2 1 0 15 LSB MSB 9/21 14 13 2 1 0 LSB www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers I2C CONTROL INTERFACE Data are transmitted to and from the MCU and MS6336 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 MS6336 I2C interface protocol The format consists of the following: •A START condition •A chip address byte including the chip address. (7bits) •The 8th bit of the byte must be “0”.(write=0, read=1) •The chip must always acknowledge the end of each transmitted byte. •A data sequence (N-bytes + Acknowledge) •A STOP condition SDA SCL 1-7 8 9 R/W ACK 1-7 8 9 1-7 8 9 S P ADDRESS START CONDITION DATA ACK DATA ACK STOP CONDITION I2C chip address 88H 1 0 0 0 1 7 bits address REV 4 0 0 0 W 10/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers I2C data bytes description MSB 1 1 0 DAC PD LPD RPD PDPR 1 1 1 S/B DAC Mute DAC Mute AF1 LSB CAP PD AF0 Function Power Down Mode Output mode (SE/BTL), DAC mute, and Audio format Power Down Mode MSB 1 1 0 DAC PD 0 RPD LSB CAP LPD PDPR PD Function Power mode selection and power management DAC is active mode 1 DAC is power down mode 0 R-ch PA output is active mode 1 R-ch PA output is power down mode 0 L-ch PA output is active mode 1 L-ch PA output is power down mode 0 Disable preparation for power off 1 Enable preparation for power off 0 Set the voltage of CAP to middle of supply voltage 1 Pull down CAP pin to ground Initial state: All are the power down modes. Enable the power down preparation before the chip will be shut down. Output mode (SE/BTL), DAC mute and Audio format MSB 1 LSB 1 1 S/B DAC Mute DAC Mute AF1 AF0 Function Output mode and audio format 0 Output mode is BTL 1 Output mode is SE 0 0 DAC is mute-on 1 1 DAC is mute-off 0 0 Right justified format 1 0 Left justified format 0 1 I2S format 1 1 Initial state: Output mode is BTL mode, DAC is mute-on and right justified format REV 4 11/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers Initial chip status MSB LSB Function Power Down Mode Output mode (SE/BTL), DAC mute, and Audio format 1 1 0 1 1 1 1 1 1 1 1 0 0 0 0 0 I2C CODE EXAMPLE Power down mode Set the built-in DAC to be power down mode. DACPD Start MS6336 Address ACK 1 1 0 1 0 0 0 0 ACK Stop DAC power down Output mode and audio format Set the output mode to be BTL mode, and the DAC to be mute-off, I2S format. Output mode Start MS6336 Address ACK 1 1 1 Audio format 0 1 1 1 1 ACK Stop BTL mode, I2S REV 4 12/21 www.mosanalog.com MOSA MS6336 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers OPERATION PROCEDURE The sequence of operation: power on→ active → power down → active → power off. The basic flowcharts are as follows: For HP mode REV 4 13/21 www.mosanalog.com MOSA MS6336 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers For BTL mode only REV 4 14/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers APPLICATION INFORMATION A base application circuit VDD HP_sense MCU 100k 100k 1uF BCK Audio Decoder -1 WS DATA OUTR- 16-bit DAC 100uF 1k RL 8Ω -1 OUTR+ Headphone Jack -1 OUTL- 100uF -1 OUTL+ I 2C Interface Supply VDD Vss CAP 2.4 ~ 6.5V 1uF Supply SCL Power Amplifier Supply PVDDL PVSSL PVDDR PVSSR 1uF 1uF SDA MCU 0.1uF 1k RL 8Ω 2.4 ~ 6.5V Power Amplifier Supply 1uF Output mode operation -- SE mode and BTL mode The output has two modes, SE mode and BTL mode. The mode is selected by I2C code via MCU. In BTL mode, the outputs of A1(B1) and A2(B2) are then used to drive the speakers(4Ω/8Ω). A1 OUTR- -1 RL 4Ω / 8Ω A2 -1 OUTR+ B1 OUTL- -1 RL 4Ω / 8Ω B2 -1 OUTL+ I2C Interface SCL SDA In the SE mode, the amplifiers A2 and B2 are shutdown, and become the high output impedance states. A1 OUTR- -1 100uF 1k Headphone Jack RL 16Ω / 32Ω A2 -1 Shutdown B1 OUTL- -1 100uF 1k B2 -1 Shutdown I2C Interface SCL SDA REV 4 15/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers Headphone sense The output mode is SE or BTL that is decided by a headphone. It has to be set SE mode when a headphone is plug-in status. The output mode is selected by I2C command code by MCU. Please note that the MS6336 don’t detect a headphone automatically. Thus a detect function is executed via MCU. An operation diagram is shown as follows: The HP_sense pin is high when a headphone is plug-in. The HP_sense pin is low when a headphone is not plug-in. REV 4 16/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers EXTERNAL DIMENSIONS TSSOP16 (Thermal Pad) D D2 Detail A E2 E1 E C A2 A θ A1 B e L y L1 Dimension in mm Dimension in inches Symbol Min REV 4 Nom Max Min Nom Max A - - 1.15 - - 0.045 A1 0.00 - 0.10 0.000 - 0.004 A2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 - 0.30 0.007 - 0.012 C 0.09 - 0.20 0.004 - 0.008 D 4.90 5.00 5.10 0.193 0.197 0.201 D2 3.7 3.8 3.9 0.146 0.150 0.154 E 6.20 6.4 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 E2 2.7 2.8 2.9 0.106 0.110 0.114 e - 0.65 - - 0.026 - L 0.45 0.60 0.75 0.018 0.024 0.030 L1 0.90 1.00 1.10 0.035 0.039 0.043 θ 0o - 8o 0o - 8o y - - 0.10 - - 0.004 17/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers SSOP20 (209mil) Dimension in mm Dimension in inches Symbol Min Nom Max Min Nom Max A - - 2 - - 0.079 A1 0.05 - - 0.002 - - A2 1.65 1.75 1.85 0.065 0.069 0.073 b 0.22 0.3 0.33 0.009 0.012 0.013 C 0.09 0.15 0.21 0.004 0.006 0.008 D 6.9 7.2 7.5 0.272 0.283 0.295 E 7.4 7.8 8.2 0.291 0.307 0.323 E1 5 5.3 5.6 0.197 0.209 0.220 e L 0.650 BASIC 0.55 L1 REV 4 0.75 0.026 BASIC 0.95 0.022 1.25 REF. 0.03 0.038 0.049 REF. R1 0.09 - - 0.004 - - θ 0 4 8 0 4 8 18/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers DEMO BOARD 1 4 6 5 2 3 Function description Label 1: Supply Input Supply voltage range is 2.4V to 6.5V. Label 2: Reset All I/O pins are reset to default values. Label 3: Headphone Jack Used 3.5mm diameter of headphone with 32ohm Label 4: Speaker Output Connected to speaker with 8ohm or 4 ohm Label 5: Digital Signal Input Connected to digital audio formats as I2S, Right Justified and Left Justified. Label 6: LED Indicator The LEDs indicate the chip status and IR received status. It keeps on a light state when the MS6336 is active. The other hand, keeps on a dark state when the MS6336 is power-off. It is red-dark blink once when the MCU has received the function code correctly. SE mode and BTL mode operation The headphone controls operational mode. System enters SE mode when headphone jack is empty. When a set of headphone plugged into the jack, the system switched to BTL mode. REV 4 19/21 www.mosanalog.com MOSA MS6336 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers IR Controller Power ON/OFF : The system power keys. Power ON, the chip is activating when the LED indicator is on a light state. Power OFF, the chip is power-off when the LED indicator is on a dark state. Mute ON/OFF : The mute keys. Mute ON, the output channels are no signals in mute state. Mute OFF, the output channels are normal. I2S, LJF, RJF: The digital input format keys. There are three formats can be selected that is I2S, Left justified and Right justified. REV 4 20/21 www.mosanalog.com MS6336 MOSA 16-bit Audio DAC integrated Dual 1.6W Power Amplifiers Circuit J1 DVDD R1 1 2 + + DVDD C3 0.1u S1 + C2 10u C4 1u RST R4 U1 1 2 3 4 5 IR_IN 6 SCL 7 8 SDA HP_IN 9 10 20P 20P DGND AVCC 2 + C9 0.1u Vcc P1.7 P1.6 P1.5 P1.4 P1.3 P1.2 P1.1 P1.0 P3.7 1 47u 2 3 IR_IN 20 19 18 17 16 15 14 13 12 11 Q1 C1 + VS GND IR IR D1 + C5 470P POWER DGND 1 R5 NMOS + AVCC RST P3.0 P3.1 XTAL2 XTAL1 P3.2 P3.3 P3.4 P3.5 GND R2 10K AT89C4051 Q2 J2 1 2 Y1 24M 3 C7 1 W1 JUMP + 2 + 10K C6 R3 1K 220 C8 100K + 1u C10 1u J3 R7 R8 R9 1 2 3 4 1K 1K 1K R6 U2 1 2 3 4 5 6 7 8 DAC_IN C11 0.82u + SP1 SPK_R C12 + C15 + 100u WS DATA BCK SCL CAP SDA AVss AVDD -OUTR -OUTL PVDDR PVDDL +OUTR +OUTL PVSSR PVSSL MS6336 16 15 SCL 14 SDA 13 AVCC 12 11 10 9 SP2 SPK_L C13 C14 + + 1u 1u 100K 1u + C16 100u 1 2 3 4 5 6 R10 1K R11 1K HP-IN HP-R R HP-L L G HEADPHONE J5 1 2 3 OUT W2 Jumper AGND REV 4 AGND DGND 21/21 www.mosanalog.com