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| MOSA ELECTRONICS FEATURES MS6610 Stereo Audio DAC Current output Easy application : Space saving package(SOP8 ) Operation range: 2.7V~5.5V Low power consumption Output and bias current are proportional to supply voltage Low total harmonic distortion Wide dynamic range(16-bit resolution) Fast setting time permits 2*, 4*, and 8* oversampling(serial input) or double speed operation at 4* oversampling Internal bias current ensures maximum dynamic range Wide operating temperature range of -40 to 85 Internal timing and control circuits Compatible with most of the Japanese input formats; time multiplexed, two's complement, TTL No zero crossing distortion APPLICATIONS VCD Player, DVD Player. DESCRIPTION The MS6610 is a 16-bit current-output Digital-to-Analog Converter(DAC). The MS6610 is fabricated in a 0.8m CMOS process and features extremely low power dissipation, small package size and ease of 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 MS6610 ideally suited for use in digital audio equipment. MS6610 is pin and function compatible with the Philips, TDA1545. PINNING Symbol BCK WS DATA GND VDD IOL VREF IOR 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 reference voltage output right channel output BCK 1 WS 2 DATA 3 GND 4 Pin configuration 8 IOR MS6610 7 VREF 6 IOL 5 VDD -1- www.mosanalog.com.tw MOSA ELECTRONICS BLOCK DIAGRAM MS6610 Stereo Audio DAC 1nF I BL 6 I OL C1 3.9K R1 V OUT left OP1 LEFT OUTPUT LATCH RIGHT OUTPUT LATCH Vref 1nF C2 3.9K I BR 8 I OR LEFT BIT SWITCHES RIGHT BIT SWITCHES R2 VOUT right OP2 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 R3 22K 5 C3 100nF 4 ground + C4 1uF VDD Vref 7 LEFT INPUT LATCH REFERENCE SOURCE BCK WS 1 2 Rref 11K CONTROL & TIMING RIGHT INPUT LATCH DATA 3 Fig.1 Block diagram. LIMITING VALUES Symbol VDD Tsig TXTAL TAMB Ves Parameter Positive Supply Voltage Storage Temperature Range Maximum Crystal Temperature Operating Ambient Temperature Range Electrostatic Handling Min -55 -40 -2000 Max 6 +150 +150 +85 2000 V Unit V -2- www.mosanalog.com.tw MOSA ELECTRONICS ELECTRICAL CHARACTERISTICS (Ta=25 , VDD=5V) SYM PARAMETER VDD Positive Supply Voltage I DD Operating Current PSSR Power Ripple Rejection Ratio CONDITIONS at code 0000H MIN 2.7 TYP 5 3 30 MS6610 Stereo Audio DAC MAX 5.5 5 UNIT V mA dB DIGITAL INPUTS (WS, BCK, DATA) SYM f BCK BR FWS PARAMETER Input Clock Frequency Bit Rate Data Input (Pin 3) Word Select Input (Pin 2) 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 54 15 15 12 2 2 12 CONDITIONS MIN TYP MAX 18.4 18.4 384 12 12 UNIT MHz Mbits/s kHz ns ns ns ns ns ns ns ns ns tr tf t Cr t HB t LB t SD t HD t HW t SW ANALOG INPUT (Iref) SYM Rref PARAMETER Reference Resistor (Fig.1) CONDITIONS MIN 7.4 TYP 11.0 MAX 14.6 UNIT K ANALOG OUTPUT (IOL, IOR) SYM Res VDCC I FS TCFS Ptot I bias THD THD S/N CS PARAMETER CONDITIONS Resolution DC output Voltage Compliance Full Scale Output Current I FS = 0.2VDD Full Scale Temperature Coefficient at Analog Outputs ; I OL, I OR Total Power Dissipation at code 0000H Bias Current (adjustable) Total Harmonic Distortion including noise at 0 dB Total Harmonic Distortion including noise at -60 dB Signal-to-Noise Ratio a-weighted at code 0000H Channel Separation MIN 2.0 0.9 TYP MAX 16 VDD-1 1.1 UNIT bits V mA 16 10mW 785 -78 0.01 -24 6 1.0 400 643 15 714 -85 0.005 -30 3 92 95 A dB dB dB dB -3- www.mosanalog.com.tw MOSA ELECTRONICS TIMING AND DATA FORMAT MS6610 Stereo Audio DAC The MS6610 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 LOW level on the word select input(WS) input data is placed in the right input register and with HIGH level on the WS input data is placed in the left register. 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 output voltage Vref(Fig. 1) is 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 MSB tSD 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 MEASUREMENT BLOCK DIAGRAM R-ch Pattern Generator Generate sinewave pattern for BCK.WS.DATA DAC L-ch OPAmp Analysis Equipment AC Level (Vrms) THD THD+N MS6610 MS6308 f = 1 kHz , 2Vp-p sinewave NOTE : THD and THD+N is measured by HP AUDIO ANALYZER and FFT Analysis. -4- www.mosanalog.com.tw MOSA ELECTRONICS APPLICATION INFORMATION VDD 10uF 0.1uF 1nF MS6610 Stereo Audio DAC 3.9k 22k 100uF VOA 10k BCK 1 5 8 2 1 3 33k 7 5 7 DATA 3 4 6 6 4 VREF 8 WS 2 MS6610 MS6308 100uF 1uF 3.9k 100uF VOB 1nF 10k Fig.3 Example of application with MS6610 (audio DAC) EXTERNAL DIMENSIONS 4.8 8 5 6.0 3.9 1 4 Unit : mm Tolerance : 0.1mm 1.27 0.42 0.68 1.4 0.22 1.27 0.42 0.23 -5- www.mosanalog.com.tw MOSA ELECTRONICS TAPE AND REEL (Unit : mm) 2.0 0.30 0.05 4.0 0.05 1.5+0.1/-0.0 DIA MS6610 Stereo Audio DAC 1.75 0.3R MAX 5.5 0.05 12.0 0.3 5.4 3.0 3.6 6.9 8.0 1.5 MIN 0.5 Radius Typical 2.0 1.7 ORDERING INFORMATION Package 8-Pin SOP 8-Pin SOP 8-Pin SOP (lead free) 8-Pin SOP (lead free) Part number MS6610BSTR MS6610BSU MS6610BSGTR MS6610BSGU Packaging Marking MS6610BS MS6610BS MS6610BSG MS6610BSG Transport Media 2.5k Units Tape and Reel 100 Units Tube 2.5k Units Tape and Reel 100 Units Tube -6- www.mosanalog.com.tw |
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