MS6308 ETC

Document overview

  • Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 5

Technical content

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FEATURES

  • Wide temperature range
  • N o s w i t c h - O N / O F F c l i c k s
  • Excellent power supply ripple rejection
  • Low power consumption
  • Short-circuit resistant
  • High performance : - high SNR - high slew rate - low distortion
  • Large output voltage swing

APPLICATIONS

  • CD-RW、DVD-RW
  • CD-ROM、DVD-ROM
  • Motherboard
  • MP3、PDA
  • Portable Digital Audio

DESCRIPTION

The MS6308 is an integrated class AB stereo headphone driver contained in an SO8 package. The device is fabricated in a CMOS process and has been primarily developed for portable digital audio applications. MS6308 is pin and function compatible with the Philips, TDA1308T. PINNING Symbol Pin Description OUTA 1 output A -INA 2 inverting input A +INA 3 non-inverting input A VSS 4 negative supply +INB 5 non-inverting input B -INB 6 inverting input B OUTB 7 output B VDD 8 positive supply MS6308 VDD OUTB -INB +INB OUTA -INA +INA VSS Pin configuration BLOCK DIAGRAM +INB VDD OutB -INB OutA -INA +INA VSS Fig.1 Block Diagram

  • 2 - www.mosanalog.com.tw

ELECTRICAL CHARACTERISTICS

VDD = 5V; VSS = 0V; f = 1 kHz; RL = 32Ω ; Measured in test circuit of Fig.2 Symbol Parameter Conditions Min Typ Max Unit VDDs single supply voltage 2.8 5.0 7.0 V VDDd dual supply voltage 1.4 2.5 3.5 V VSS negative supply voltage -1.4 -2.5 -3.5 V I DD supply current R L not connected - 3 5 mA Ptot total power dissipation R L not connected - 15 25 mW VESD Electrostatic Discharge MIL-STD-883D Method 3015.7 6000 - - V DC CHARACTERISTICS Symbol Parameter Conditions Min Typ Max Unit V Ios input offset voltage - 10 - mV I bias input bias current - 10 - pA VCM common mode voltage 0 - 3.5 V G V open-loop voltage gain R L = 5 kΩ - 80 - dB I O maximum output current (THD+N)/S < 0.1 % - 60 - mA RO output resistance - 0.25 - Ω note 1 0.75 - 4.25 V RL = 16 Ω ; note 1 1.5 - 3.5 V VO output voltage swing RL = 5 kΩ ; note 1 0.1 - 4.9 V - 90 - dB PSRR power supply rejection ratio f = 100 Hz; Vripple=100mV(p-p) - 70 - dB CS channel separation RL = 5 kΩ - 105 - dB CL load capacitance - - 200 pF AC CHARACTERISTICS Symbol Parameter Conditions Min Typ Max Unit - -70 -65 dB note 2 - 0.03 0.06 % - -101 - dB (THD+N)/S total harmonic distortion plus noise note 2; RL = 5 kΩ - 0.0009 - % S/N signal-to-noise ratio 100 110 - dB f G unity gain frequency open-loop;R L=5 kΩ - 5.5 - MHz Po maximum output power (THD+N)/S < 0.1 % - 60 - mW C i input capacitance - 3 - pF SR slew rate unity gain inverting - 5 - V/ µs B power bandwidth unity gain inverting - 20 - kHz Notes 1. Values are proportional to V DD (THD+N) / S < 0.1 % . 2. V DD = 5.0 V; VO = 3.5 V(p-p) (0 dB).

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APPLICATION INFORMATION

3.9k VREF 3.9k 3.9k 3.9k (typ. 2.5V) RL VOA 100uF 100uF ViB ViA VDD VOB RL 100uF 10uF 10uF FFFFig.2 Measurement circuit, inverting applicationig.2 Measurement circuit, inverting applicationig.2 Measurement circuit, inverting applicationig.2 Measurement circuit, inverting application Basic application example A typical example of a CD-application with the MS6311 is shown in Fig.3. It features typical decoupling components and a second-order analog post-filter (smoothing filter) stage providing a line output. BCK WS DATA GND VoR n.c. VoL VDD MS6311 50k MS6308 50k 420pF 10Ω VDD 47uF 100nF 50k MS6308 50k 420pF 100nF 100nF Headphone (32Ω) Headphone (32Ω) Fig.3 Example of a 2nd order filter application. Note : No external capacitor loading is allowed at the output pins 6 and 8.

  • 4 - www.mosanalog.com.tw MP3 digital to analog converting solution. Fig.4 0.1uF BCK WS DATA GND VoR CAP VoL V DD MS6313 47uF MS6308 DAC Headphone Driver 22k 450pF 50k 50k 10uF VREF 15k 15k 20k 470pF 0.1uF 7 47uF 10uF MP3 DECODER 1.2VP-P 1.6VP-P Headphone (32Ω) PHONE JACK SUNPLUS SPCA751 STMicroelectronics STA013 AVDD 2.2k 100k 10Ω3.3V 47uF 0.1uF 50k Power On/Off Fig.4 A first order lowpass filter for DAC output. EXTERNAL DIMENSIONS (Unit : mm Tolerance : 0.1mm) 1.27 0.42 6.0 3.9 4.8 0.68
  • 5 - www.mosanalog.com.tw TAPE AND REEL (Unit : mm) 3.0 3.6 12.0 6.9 8.0 5.5 1.75 5.4 2.0 4.0 1.5+0.1/-0.0 DIA 0.5 Radius Typical1.5 MIN 0.30 0.3R MAX 1.72.0 0.05 0.05 0.05 0.3

ORDERING INFORMATION

SOP 8 : Plastic small outline package ; 8 leads.