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MOSA
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
16-Bit Stereo Audio DAC Integrated Headphone Driver with Volume Control
FEATURES
Operation range: 2.7V~5.5V Volume control range : 6dB to -39dB, 1.5dB/step Low power consumption, 17mW at VDD=3.3V (Audio code = 0000H) Mute function Flexibility power management No pop-noise No zero crossing distortion Audio format : Right justified, I2S Serial control interface : I2C, SPI Output voltage adjusted by the external resisters Excellent Power Supply Rejection Ratio(PSRR) Component less Cost effective Housed in SSOP20, SSOP16, QFN16 package
APPLICATIONS
Multimedia system, MP3, PDA, Portable Digital Audio.
DESCRIPTION
The MS6334 is a 16-bits voltage-output Digital-to-Analog Converter (DAC) integrated class AB stereo headphone driver with volume control. It is fabricated in a CMOS process and features extremely low power dissipation, small package size and easy application. The accuracy of the matched coarse current sources, combined with the unique symmetrical decoding method, preclude zero-crossing distortion and ensures high quality audio reproduction. The MS6334 has good feature for portable equipment, these features include the low voltage operation, low power consumption, flexible power management, component less and small package SSOP20, make the MS6334 ideally suited for use in portable digital audio equipments. The MS6335 only has I2C interface, the smaller package SSOP16, QFN16 , and other functions are the same as the MS6334.
BLOCK DIAGRAM
SDA SCL AO/CS MODE Line-Lin Line-Lout HP-VDD HP-VSS
Control Interface
-
BCK WS DATA DAC
+
OPAmp
+ -
Volume Control Mute
HP
HP-Lout
HP
HP-Rout
AVDD AVSS DVDD DVSS CAP
Line-Rin
Line-Rout
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PIN CONFIGURATION
MS6334 Symbol HP-VDD HP-Rout Line-Rout Line-Rin CAP AVSS DVSS MODE BCK WS DATA SCL SDA AO/CS DVDD AVDD Line-Lin Line-Lout HP-Lout HP-VSS Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Description Headphone supply voltage
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
Right channel headphone output Right channel line output Right channel line input Capacitor connected Analog ground Digital ground Control interface selection Low : I2C, High : SPI Audio bit clock input Audio word select input Audio data input I2C clock input SPI clock input I2C data input SPI data input I C address option SPI chip select Digital supply voltage Analog supply voltage Left channel line input Left channel line output Left channel headphone output Headphone ground SSOP20, I2C / SPI interface
2
HP-VDD 1 HP-Rout 2 Line-Rout 3 Line-Rin 4 CAP 5
20 HP-VSS 19 HP-Lout 18 Line-Lout 17 Line-Lin 16 AVDD
MS6334
AVSS 6 DVSS 7 MODE 8 BCK 9 WS 10 15 DVDD 14 AO/CS 13 SDA 12 SCL 11 DATA
Note: 1. MODE = low, the interface is I2C and pin14 is address option (AO). AO = low, the address code is 8CH (10001100B). AO = high, the address code is 88H (10001000B). 2. MODE = high, the interface is SPI and pin14 is chip selection (CS).
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MS6335 Symbol HP-VDD HP-Rout Line-Rout Line-Rin CAP VSS BCK WS DATA SCL SDA VDD Line-Lin Line-Lout HP-Lout HP-VSS Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Description Headphone supply voltage
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
Right channel headphone output Right channel line output Right channel line input Capacitor connected Ground Audio bit clock input Audio word select input Audio data input I2C clock input I2C data input Supply voltage Left channel line input Left channel line output Left channel headphone output Headphone ground
HP-VDD 1 HP-Rout 2 Line-Rout 3 Line-Rin 4
16 HP-VSS 15 HP-Lout 14 Line-Lout 13 Line-Lin
MS6335
CAP 5 VSS 6 BCK 7 WS 8 12 VDD 11 SDA 10 SCL 9 DATA
SSOP16, I2C interface
Note: The control interface is I2C only. The address code is 8CH (10001100B).
16 HP-Rout
Line-Rout Line-Rin CAP VSS BCK WS DATA SCL SDA VDD Line-Lin Line-Lout HP-Lout HP-VSS HP-VDD HP-Rout
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Right channel line output Right channel line input Capacitor connected Ground Audio bit clock input Audio word select input Audio data input I2C clock input I2C data input Supply voltage Left channel line input Left channel line output Left channel headphone output Headphone ground Headphone supply voltage Right channel headphone output
VSS 4 Line-Rout 1
13 HP-Lout 12 Line-Lout 11 Line-Lin 10 VDD 9 SDA
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MS6335 Symbol
Pin
Description
15 HP VDD
Line-Rin 2
CAP 3
BCK 5
WS 6
DATA 7
14 HP VSS
QFN16, I2C interface
Note: The control interface is I2C only. The address code is 88H (10001000B).
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SCL 8
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ORDERING INFORMATION
Package 20-Pin SSOP 20-Pin SSOP 20-Pin SSOP (lead free) 20-Pin SSOP (lead free) 16-Pin SSOP 16-Pin SSOP 16-Pin SSOP (lead free) 16-Pin SSOP (lead free) 16-Pin QFN (lead free) 16-Pin QFN (lead free) Part number MS6334TR MS6334U MS6334GTR MS6334GU MS6335TR MS6335U MS6335GTR MS6335GU MS6335QTR MS6335Q
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
Packaging Marking MS6334 MS6334 MS6334G MS6334G MS6335 MS6335 MS6335G MS6335G 6335 6335
Transport Media 2.5k Units Tape and Reel 50 Units Tube 2.5k Units Tape and Reel 50 Units Tube 2.5k Units Tape and Reel 100 Units Tube 2.5k Units Tape and Reel 100 Units Tube 5k Units Tape and Reel 490 Units Tray
ABSOLUTE MAXIMUM RATINGS
Symbol VDD VESD TSTG TA TJ TS RTHJA Positive Supply Voltage Electrostatic Handling Storage Temperature Range Operating Ambient Temperature Range Maximum Junction Temperature Soldering Temperature, 10 seconds Thermal Resistance from Junction to Ambient in Free Air SSOP20 SSOP16 QFN16 Parameter Rating 6 -3000 to 3000 -65 to 150 -40 to 85 150 260 210 210 210 /W Unit V V
OPERATING RATINGS
Symbol VDD Supply Voltage Parameter Min 2.7 Typ Max 5.5 Unit V
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(Ta=25 Symbol DC Characteristics VCAP VDC VFS IQ IPD PSRR CS ATT AGA ASTEP EGA EIGA Res THD+N S/N Po Vo VIH VIL Voltage at CAP Output DC level Full scale output voltage Quiescent current Power down current Power supply rejection ratio Channel separation Mute attenuation Gain/Attenuation Gain/Attenuation step Gain/Attenuation step error Interchannel gin/attenuation error Resolution Total harmonic distortion plus noise Signal-to-noise ratio Maximum output power Maximum output voltage swing Bus high input level Bus low input level Parameter
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
3.3V ELECTRICAL CHARACTERISTICS
, VDD=3.3V, VSS=0V, f=1kHz, RL=32; unless otherwise specified) Conditions Min 1.60 1.60 VFS=0.02* RF *VDD Audio code 0000H CAP=2.2uF (100Hz) CAP=10uF (100Hz) VFS-10% 58 67 76 100 Max gain Max attenuation 86 (THD+N)/S < 0.1%, 2 ch (THD+N)/S < 0.1% 0.3VDD Typ 1.65 1.65 VFS 5.4 11 63 72 82 110 6 -39 1.5 0.3 0.3 -65 0.056 92 52 2.6 16 -60 0.1 0.7VDD Max 1.70 1.70 VFS+10% Unit V V V mA uA dB dB dB dB dB dB dB dB dB bits dB % dB mW Vpp V V
AC Characteristics
Bus Characteristics
Note: RF : Feedback resistor
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(Ta=25
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
TYPICAL PERFORMANCE CHARACTERISTICS
, RL=32, RF=22k, sampling rate=4fs; unless otherwise specified)
POWER DOWN CURRENT (uA)
QUIESCENT CURRENT (mA)
Code=60H
Code=65H
THD+N (%)
f=1kHz
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
Power down current vs. supply voltage
Quiescent current vs. supply voltage
THD+N vs. supply voltage
CAP=10uF
CAP=10uF
CAP=10uF
PSRR (dB)
PSRR (dB)
CAP=2.2uF
CAP=2.2uF
PSRR (dB)
CAP=2.2uF
VDD=5V VRR=-20dBV
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
CHANNEL SEPARATION (dB)
MUTE ATTENUATION (dB)
VDD=2.7V
THD+N (%)
VDD=3.3V
f=1kHz
f=1kHz
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
Mute attenuation vs. supply voltage
Channel separation vs. supply voltage
THD+N vs. frequency
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AUDIO TIMING AND FORMAT
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
The MS6334 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 RIGHT tr tHB tf tLB tHW tSW
WS
BCK
tcr LSB MSB tSD tHD
DATA
Fig.1 Audio data format (BCK, WS, DATA) Symbol Parameter VIL Input LOW level VIH Input HIGH level Input Clock Frequency f BCK BR Bit Rate Data Input Word Select Input fWS Rise Time tr
Timing of input signals
Conditions
Min 0.7VDD 54 15 15 12 2 2 12
Typ -
Max 0.3VDD 18.4 18.4 384 12 12 -
Unit V V MHz Mbits/s kHz ns ns ns ns ns ns ns ns ns
tf t Cr t HB t LB t SD t HD t HW t SW
Fall Time Bit Clock Cycle Time Bit Clock High Time Bit Clock Low Time Data Set-up Time Data Hold Time to Bit Clock Word Select Hold Time Word Select Set-up Time
WS
LEFT RIGHT
BCK
DATA 2
1
0
15 MSB
14
13
2
1
0 LSB
15 MSB
14
13
2
1
0 LSB
Fig.2
Right justified format (Normal format)
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WS
LEFT
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
RIGHT
BCK
1 BCK 1 BCK
DATA
15 MSB
14
13
2
1
0 LSB
15 MSB
14
13
2
1
0 LSB
Fig.3
I2S format
I2C BUS INTERFACE
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 S START CONDITION
1-7
8
9
1-7
8
9
1-7
8
9 P
ADDRESS
R/W
ACK
DATA
ACK
DATA
ACK
STOP CONDITION
Fig.4 I2C chip address 88H
1 0 0 0 1 0 0 0 W
I2C format
8CH
1 0 0 0 1 1 0 0 W
7 bits address
7 bits address
For MS6334, MODE=Low, AO/CS=High, For MS6335 QFN16 package only
For MS6334, MODE=Low, AO/CS=Low For MS6335 SSOP16 package only
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I2C data bytes description Volume control MSB 0 0 0 b4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 b3 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 1 0 b2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 b1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 b0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 b4 b3 b2 b1
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
LSB 2-channel, 1.5dB/step b0
Function Left channel, 1.5dB/step Right channel, 1.5dB/step
Gain / Attenuation bits Value (dB) Mute -39 -37.5 -36 -34.5 -33 -31.5 -30 -28.5 -27 -25.5 -24 -22.5 -21 -19.5 -18 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Value (dB) -16.5 -15 -13.5 -12 -10.5 -9 -7.5 -6 -4.5 -3 -1.5 0 +1.5 +3 +4.5 +6
0 1 1 Initial state: Mute
Power down mode MSB 0 1 1 b4 b3 b2 b1 Power down bits b4=1, Pull down CAP pin to ground (CAPGD) b4=0, Set the voltage of CAP to middle of supply voltage (CAPGD) b3=1, Enable OPAmp power down (OPAPD) b3=0, Disable OPAmp power down (OPAPD) b2=1, Enable DAC power down (DACPD) b2=0, Disable DAC power down (DACPD) b1=1, Enable headphone power down (HPPD) b1=0, Disable headphone power down (HPPD) b0=1, Enable DAC mute (DACM) b0=0, Disable DAC mute (DACM) Initial state: b0=b1=b2=b3=b4=1 LSB b0 Function Power down mode selection
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Audio format and power off MSB 1 0 0 0 0 0 b1 Audio format and power off bits b1=1, Enable preparation for power off b1=0, Disable preparation for power off b0=1, I2S format b0=0, Right justified format (normal format) Initial state: b0=b1=0. Power off : VDD down to 0V
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
LSB b0
Function Audio format selection and preparation for power off
I2C example The audio format is selected I2S format. Audio format code = 81H. The initial state is right justified format.
MSB Start 1 0 0 0 1 1 0 LSB 0 ACK 1 0 0 Data byte 0 0 0 0 1 ACK Stop
MS6335 address
I2S format
DAC active. Code = 7BH. The initial state is enabled all power down mode when power on.
Start Chip Address ACK 0 1 1 1 1 0 1 1 ACK Stop
DACPD = 0
HP active, OPAmp active, CAP to 1/2 VDD, DAC keep active. Code = 61H. Set the voltage of CAP to middle of supply voltage, the charge time is approximately 1 second.
Start Chip Address ACK 0 1 1 0 0 0 0 1 ACK Stop
CAPGD = 0 HPPD = 0 OPAmp = 0 DACPD = 0
DAC mute off. Code = 60H. The chip entered active mode.
Start Chip Address ACK 0 1 1 0 0 0 0 0 ACK Stop
DACM = 0
Set gain of 2 channel at 0dB. Volume control code = 1BH.
Start Chip Address ACK 0 0 0 1 1 0 1 1 ACK Stop
2-ch, 0dB
Set attenuation of left channel at -22.5dB. Volume control code = 2CH.
Start Chip Address ACK 0 0 1 0 1 1 0 0 ACK Stop
L-ch, -22.5dB
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Start Chip Address ACK 0 1 0 0 1
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
Set attenuation of right channel at -22.5dB. Volume control code = 4CH.
1 0 0 ACK Stop
R-ch, -22.5dB
Preparation for power off. Code = 82H or 83H.
Start Chip Address ACK 1 0 0 0 0 0 1 x ACK Stop
Power Off Preparation = 1
FM application. OPAmp active, HP active. DAC inactive, DAC mute off. Code = 65H. The chip enters line-in mode.
Start Chip Address ACK 0 1 1 0 0 1 0 1 ACK Stop
HPPD = 0 OPAmp = 0
Power down mode (shut down mode). Code = 6FH The chip enters power down mode. The shut down current is approximately 11uA.
Start Chip Address ACK 0 1 1 0 1 1 1 1 ACK Stop
DACM = 1 DACPD = 1 HPPD =1 OPAmp =1
SPI BUS INTERFACE
In SPI mode, SCL is serial clock, SDA is serial data and AO/CS latches the data word into the MS6334. A control word consist of 16bit, starting with the MSB. The data bits are latched on the rising edge of SCL. A rising edge of AO/CS latches the data into the MS6334 after sixteenth rising clock edge.
CS/AO
SCL
SDA
15 MSB
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0 LSB
Fig.5 SPI data word description MSB b15 0 b14 0 b13 0 b12 0 b11 0 b10 0 b9 0 b8 0
SPI format
LSB b7 b6 b5 b4
2
b3
b2
b1
b0
Reference to I C data bytes description The initial state is the same as I2C
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OPERATION PROCEDURE
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
The sequence of operation: power on active power down active power off. The basic flowcharts are as follows:
Power Turn On
Active
Power Off
Power Down (Shut Down)
All the Digital Interface Signals Pull Low I2C pull low Audio inputs pull low (BCK, WS, DATA) VDD = GND
Audio Format Selection Right justified: 80H (default) I2S: 81H
Active mode All Devices are active
Volume Control volume down to mute both 2 channels mute on
Power up Code : 6DH Power On VDD = Supply voltage Default Codes Inside The Chip Volume control :00H Power down : 7FH Audio format : 80H Default Status The chip is in the power down mode, all devices are not active Volume Mute On Wait 1sec Code : 61H All Devices are active
Volume Control volume down to mute both 2 channels mute on
Power Down code : 6FH All devices are not active except CAPPD keep active
Power Off Preparation code : 82H or 83H wait 0.2 sec
Keep All the Digital Interface Signals unchanged
DAC Mute Off Code : 60H Power Down code : 6FH All devices are not active except CAPPD keep active Volume Control Default volume = mute Volume up/down step by step
All the Digital Interface Signals Pull Low I2C pull low Audio inputs pull low (BCK, WS, DATA)
Power Off Disconnect VDD VDD will be down to 0V
Fig.6
Operational procedure
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APPLICATION INFORMATION
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
A MP3 with FM application The analog and digital power can be supplied as single voltage.
MS6334
15
DVDD DVSS
HP-VDD HP-VSS AVSS AVDD
1
0.1uF
7
20 6
0.1uF 100uF 0.1uF
Supply 2.7~5.5V
16
8
CAP MODE AO/CS SCL SDA Line-Lin Line-Lout Line-Rin Line-Rout
5
300K 2.2uF RFM FM-L FM Module FM-R
MCU Interface
14 12 13
17
18 4 3
RF
CF RFM
RF
CF
7
BCK WS DATA 47uF HP-Lout
19
Audio Decoder
8 9
32
47uF HP-Rout
20
32
Headphone
MS6335 HP-VDD 0.1uF HP-VSS VSS 0.1uF VDD 300K CAP SCL MCU Interface SDA Line-Lin RF Line-Lout Line-Rin RF Line-Rout BCK Audio Decoder WS DATA 47uF HP-Lout 47uF HP-Rout 32 Headphone 32 CF CF RFM FM-R 2.2uF RFM FM-L FM Module 100uF Supply 2.7~5.5V
Note :
Vo=0.02269*RF*VDD Vpp at 0dB gain RF//CF to decide -3dB point For VDD=3V, RL=32, RF =24k, CF =390pF, Vo=1.63Vpp RL=16, RF =22k, CF =470pF, Vo=1.50Vpp FM mode, VLine DC Gain = RF/ RFM Fig.7 MP3 with FM application circuit.
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EXTERNAL DIMENSIONS
SSOP20
D
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
Detail A
Symbol
E1 E
H x 45 c ZD
A2
A 2
A A1 A2 b c e D E E1 L h L1 ZD R1 R 1 2
R1
e
b
A1
1
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 8.56 8.74 0.337 0.344 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 1.4732 REF 0.058 REF 0.20 0.33 0.008 0.013 0.20 0.008 o o o 0 8 0 8o 0o 0o 5o 15o 5o 15o
L1
R
Detail A
L
SSOP16
D
Detail A
Symbol A A1 A2 b c e D E E1 L h L1 ZD R1 R 1 2
E1 E
H x 45 c ZD
A2 A 2 e b A1 1 R1 L1 R
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 0 8 0 8o 0o 0o 5o 15o 5o 15o
Detail A
L
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QFN16 (3x3mm)
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
D L
Symbol Dimension in mm Nom 0.75 0.02 0.203REF 0.23 3.00 1.50 3.00 1.50 0.50BSC 0.40
D1
E1
E
A A1 A3 b D D1 E E1 e L
Min 0.70 0 0.18 2.9 1.40 2.9 1.40 0.30
Max 0.80 0.05 0.30 3.10 1.60 3.10 1.60 0.50
e
b
A3 A
A1
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MS6335 DEMO BOARD
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
2.7V ~ 5.5V -+
S5 S1
2.7V ~ 5.5V + -
a c
Audio Input
LED1 S4
LED2 S2
LED3 S3
S4 (Power): POWER On/Off Power On: If this key is pressed until the LED1 power on(about 3 sec),then system is Power On. Power Off: If this key is pressed until the LED1 power off(about 3 sec),then system is Power Off.
S2 (UP) & S3 (Down): Volume Control The volume key is used to adjust the volume of playing, and the segment is divided to 31 levels(-39dB+6dB). The prime value is level 5(-33dB). Express full volume when LED3 is bright continuously. Express mute on when LED2 is bright continuously.
S1: Reset All I/O pins are reset to high. S5: I2S/Normal This PIN is used to switch the mode of audio format. I2S : a & c open. Normal : a & c short.
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Circuit :
MS6334/6335
16-Bit Stereo Audio DAC integrated HP Driver with Volume Control
AVDD
+ 100uF 0.1u 300k
390p + 47uF 24k phone jack 32 1 2 3 4 5 6 7 8 HPVdd HP-Rout Line-Rout Line-Rin CAP Vss BCK WS HPVss HP-Lout Line-Lout Line-Lin Vdd SDA SCL DATA 16 15 14 13 12 11 10 9 0.1u 1uF 100k BCK WS DATA 100
390p 24k
+ 47uF
32 phone jack SDA SCL
2.2u 24k + L-IN
24k + R-IN 1uF 100k
MS6335 (SSOP16)
DVCC
1
2
DVCC
2 3 6 7 8 9 11 5 4 1 20 + 10k 10uF P3.0/RXD P3.1/TXD P3.2/INTO P3.3/INT1 P3.4/T0 P3.5/T1 P3.7 XTAL1 XTAL2 RST/VPP VCC AT89C2051 P1.0/AIN0 P1.1/AIN1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 12 13 14 15 16 17 18 19 1k
20pF 12M 20pF
SDA SCL
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