MS6311_1

MOSA 16-Bits Stereo Audio DAC FEATURES ‧ Operation range: 2.7V~6.5V. ‧ Low power consumption ‧ Low distortion. ‧ No zero crossing distortion. ‧ Wide dynamic range(16-bit resolution). ‧ Voltage Output . ‧ Cost efficient. MS6311 16Bits Stereo Audio DAC ‧ Fast setting time permits 2*, 4*, and 8* oversampling (serial input) or double speed operation at 4* oversampling . ‧ The full scale output voltage can be mask optioned. ‧ Audio Format：Right Justified(TTL Level). ‧ Space saving package SOP8. APPLICATIONS ‧Multimedia system ‧MP3, PDA, Portable Digital Audio. DESCRIPTION The MS6311 is a 16-bit voltage-output Digital-to-Analog Converter(DAC). The MS6311 is fabricated in a 0.8m 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. These unique features, combined with its exceptional performance, make the MS6311 ideally suited for use in digital audio equipment. MS6311 is pin and function compatible with the Philips, TDA1311. PIN CONFIGURATION Symbol BCK WS DATA GND VDD VOL n.c. VOR Pin 1 2 3 4 5 6 7 8 Description bit clock input word select input data input ground positive supply voltage left channel output not connected right channel output BCK 1 WS 2 DATA 3 GND 4 Pin configuration 8 VOR MS6311 7 n.c. 6 VOL 5 VDD REV 3 1 www.mosanalog.com MOSA BLOCK DIAGRAM R1 2K MS6311 16Bits Stereo Audio DAC I BL + Vref 6 OP1 VOUT left LEFT OUTPUT LATCH RIGHT OUTPUT LATCH I BR R2 2K LEFT BIT SWITCHES RIGHT BIT SWITCHES + OP2 8 VOUT right 11-BIT PASSIVE DIVIDER 32 (5-BIT) MATCHED CURRENT SOURCES 32 (5-BIT) MATCHED CURRENT SOURCE 11-BIT PASSIVE DIVIDER Vref Iref Iref I BL Iref I BR R4  33K Vref LEFT INPUT LATCH REFERENCE SOURCE BCK WS 1 2 Rref 11K R3  22K 5 CONTROL & TIMING RIGHT INPUT LATCH VDD 100nF DATA 3 4 GND Fig.1 Block diagram. ORDERING INFORMATION Package 8-Pin SOP (lead free) 8-Pin SOP (lead free) RoHS Compliance Part number MS6311ASGTR MS6311ASGU Packaging Marking MS6311ASG MS6311ASG Transport Media 2.5k Units Tape and Reel 100 Units Tube REV 3 2 www.mosanalog.com MOSA LIMITING VALUES Symbol VDD TSTG TA TJ TS TESD RTHJA Positive Supply Voltage Storage Temperature Range Operating Ambient Temperature Range Maximum Junction Temperature Soldering Temperature, 10 seconds Electrostatic Handling Thermal Resistance from Junction to Ambient in Free Air SOP8 Parameter MS6311 16Bits Stereo Audio DAC Rating 6.5 -55 to 150 -40 to 85 150 260 -2000 to 2000 210 Unit V ℃ ℃ ℃ ℃ V ℃/W OPERATING RATINGS Symbol VDD Supply Voltage Parameter Min 2.7 Typ Max 6.5 Unit V 5V ELECTRICAL CHARACTERISTICS (Ta=25℃, VDD=5V, f=1kHz ; unless otherwise specified) Symbol Res VFS TCFS VDC THD THD CS Resolution Full Scale Output Voltage Full Scale Temperature Coefficient at Analog Outputs ; VOL, VOR Output Bias Total Harmonic Distortion Total Harmonic Distortion Channel Separation note 1 a-weighted at code 0000H including noise at 0 dB; note 1 including noise at -60 dB; note 1 VFS=0.4VDD Parameter Conditions Min 1.8 75 86 Typ 2.0 Max 16 2.2 -63 0.07 -24 6 0.3 Unit bits V 16 10- 400 2.5 -68 0.04 -30 3 80 0.2 V dB ﹪ dB ﹪ dB dB l d I O l Unbalance Between Outputs l t d l Time Delay Between Outputs S/N Signal-to-Noise Ratio 0.2 92 s dB Note : 1.Measured with 1kHz sinewave generated at sampling rate of 192 kHz. REV 3 3 www.mosanalog.com MOSA TIMING AND DATA FORMAT MS6311 16Bits Stereo Audio DAC The MS6311 accepts input serial data formats of 16-bit word length. Left and right data words are time multiplexed. The MSB (bit 1) must always be first. The format of data input is shown in Figs. 2 and 3. With a HIGH level on the word select input (WS), data is placed in the left input register and with LOW level on the WS input, data is placed in the right register (Fig. 1). The data in the input registers are simultaneously latched in the output registers which control the bit switches. Internal bias currents IBL and IBR are each added to the full scale output current IFS in order to achieve the maximum dynamic range at the outputs of OP1 and OP2(Fig. 1). The reference voltage Vref (Fig. 1) is approximately 2/3 VDD. In this way the maximum dynamic range is achieved over the entire power supply range. WS tr tHB tf LEFT RIGHT tLB tHW tSW BCK tcr LSB tSD MSB tHD DATA Fig.2 Timing and input signals. 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.3 Right justified format Data format (BCK, WS, DATA) Symbol Parameter VIL VIH Input LOW level Input HIGH level Input Leakage Current LOW Input Leakage Current HIGH Input Clock Frequency Bit Rate Data Input Word Select Input Rise Time 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 VI = 0.8V VI = 2.4V Conditions Min 2 54 15 15 12 2 2 12 Typ. - Max 0.8 10 10 18.4 18.4 384 12 12 - Unit V V l I IL l l I IH l f BCK BR A A MHz Mbits/s kHz ns ns ns ns ns ns ns ns ns fWS tr tf t Cr t HB t LB t SD t HD t HW t SW REV 3 4 www.mosanalog.com MOSA APPLICATION INFORMATION Basic application example MS6311 16Bits Stereo Audio DAC A typical example of a CD-application with the MS6311 is shown in Fig.4. It features typical decoupling components and a second-order analog post-filter (smoothing filter) stage providing a line output. 420pF 1 2 3 4 BCK WS DATA GND VoR N.C VoL VDD 8 7 6 5 420pF 50k 50k MS2100 100pF MS6311 10Ω VDD 47uF 0.1uF 50k 50k MS2100 100pF Fig.4 Note : Example of a 2nd order filter application. No external capacitor loading is allowed at the output pins 6 and 8. REV 3 5 www.mosanalog.com MOSA EXTERNAL DIMENSIONS D MS6311 16Bits Stereo Audio DAC 8 5 Symbol A A1 B C e D H E L H E 1 4 Dimension in mm Min Max 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 1.27 BSC 4.80 5.00 5.80 6.20 3.80 4.00 0.40 1.27 Dimension in inch Min Max 0.0532 0.0688 0.0040 0.0098 0.013 0.020 0.0075 0.0098 0.050 BSC 0.1890 0.1968 0.2284 0.2440 0.1497 0.1574 0.016 0.050 L A A1 e B C TAPE AND REEL (Unit : mm) 2.0 0.30 0.05 4.0 1.75 0.3R MAX 5.5 0.05 12.0 0.3 5.4 0.05 1.5+0.1/-0.0 DIA 3.0 3.6 6.9 8.0 1.5 MIN 0.5 Radius Typical 2.0 1.7 REV 3 6 www.mosanalog.com