HT82V737 0000H - Datasheet Archive

 

16-Bit Stereo Audio D/A Converter with Earphone Driver Features · Wide supply voltage range: 2.4V~5.5V · Data in

 

HT82V737 HT82V737 16-Bit Stereo Audio D/A Converter with Earphone Driver Features · Wide supply voltage range: 2.4V~5.5V · Data in 2¢s complement format, TTL · Low power consumption · Minimum number of external components is required · 16-bit dynamic range · Low clock jitter sensitivity · Low total harmonic distortion · Built-in highly efficient earphone driver · Stereo audio outputs · 16-pin NSOP package Applications · MP3 player · Satellite/cable STB · CD/VCD ROM and player · Digital portable audio/video equipment General Description HT82V737 HT82V737 is a low power consumption stereo DAC with an integrated earphone driver. The device utilizes CMOS technology specially for portable MP3 players, VCD and CD machines. HT82V737 HT82V737 provides users a low cost means of implementing high quality audio voltage outputs. It also builds in a class AB stereo driver and some application circuits, thus, requires minimal external components. It converts the 16 bits serial data into an analog output voltage by high precision D/A converter. It can be used with the Japanese input format: time multiplexed, two¢s complement, MSB first TTL level serial input. With its excellent frequency response characteristics, the The HT82V737 HT82V737 can support low voltage operation at 2.4V so it is very suitable for portable battery powered audio device. A low supply in power down mode current reduces power consumption. It is available in small 16-pin NSOP package. Block Diagram S e r ia l- to - p a r a lle l C o n v e r s io n V + o p D A C O u t R C H D D B C K W S D a ta L a tc h + D IN o p O u t + D V D D S e r ia l- to - p a r a lle l C o n v e r s io n D V S S + + o p L C H o p 3 0 k W 2 0 k W B IA S A V D D 1 L O U T L IN R O U T R IN A V S S Rev. 1.00 O u t D A C 3 0 k W 2 0 k W P D o p November 26, 2003 HT82V737 HT82V737 Pin Assignment W S 1 1 6 B C K D IN 2 1 5 P D D V D D 3 1 4 D V S S B IA S 4 1 3 N C L C H 5 1 2 R C H L IN 6 1 1 R IN L O U T 7 1 0 R O U T A V S S 8 9 A V D D H T 8 2 V 7 3 7 1 6 N S O P -A Pin Description Pin No. Pin Name I/O Description 1 WS I Word select input 2 DIN I Data input 3 DVDD ¾ Digital positive power supply 4 BIAS ¾ Connect a capacitor to ground to increase half-supply stability 5 LCH O Left DAC analog output 6 LIN I Left inverting output 7 LOUT O Left earphone driver analog output 8 AVSS ¾ Analog negative power supply, ground 9 AVDD ¾ Analog positive power supply 10 ROUT O Right earphone driver analog output 11 RIN I Right inverting input 12 RCH O Right DAC analog output 13 NC ¾ No connection 14 DVSS ¾ 15 PD I When low, the HT82V737 HT82V737 is powered down 16 BCK I Bit serial clock input Digital negative power supply, ground Absolute Maximum Ratings Supply Voltage .VSS-0.3V to VSS+5.5V Storage Temperature .-50°C to 125°C Input Voltage .VSS-0.3V to VDD+0.3V Operating Temperature .-20°C to 70°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Rev. 1.00 2 November 26, 2003 HT82V737 HT82V737 Electrical Characteristics Symbol VSS=0V; fi=1kHz; RL=32W; Ta=25°C Test Conditions Parameter VDD Min. Conditions Typ. Max. Unit Supplies DVDD Digital Supply Voltage ¾ ¾ 2.4 ¾ 5.5 V AVDD Analog Supply Voltage ¾ ¾ 2.4 ¾ 5.5 V IDD Supply Current 3.3V No load ¾ 5 7 mA IPD Power-down Current 3.3V Power-down; PD=0V ¾ 1 ¾ mA Ptot Total Power dissipation 3.3V No load ¾ 17 ¾ mW 3.3V (THD+N)/S