WM8739 |
RFQ for WM8739 Required Field |
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| Product | Manufacturers | Pack | D/C |
| WM8739 | - | SOP | 02+ |
The WM8739 is a stereo audio ADC. The WM8739 is designed specifically for portable MP3 audio and speech players and recorders. The WM8739 is also ideal for MD,CD-RW machines and DAT recorders.
Stereo line-level audio inputs are provided, along with a mute and volume function, and master or slave mode clocking schemes. The device also has a programmable high pass filter to remove residual DC offsets.
Stereo 24-bit multi-bit sigma delta ADCs are used with oversampling digital interpolation and digital filters. Digital audio output word lengths from 16-32 bits and sampling rates from 8KHz to 96KHz are supported.
The device is controlled via a 2 or 3 wire serial interface.The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities. The device is available in a small 20-pin SSOP package.
Typical Application |
Features |
| • CD, Minidisc and DAT Recorders• General Purpose Audio Digitisation | • 90dB SNR ('A' weighted @ 48kHz) ADC• Low Power- 12mW all-on, 1.4mW standby ('L' version)- 41mW all-on, 5.3mW standby (standard version)• Low Supply Voltages- 1.8 3.6V Analogue Supply ('L' version)- 2.7 3.6V Analogue Supply (standard version)- 1.42 3.6V Digital Supply (both versions)• Input Volume and Mute Controls• ADC Sampling Frequency: 8KHz 96KHz• Selectable ADC High Pass Filter• 2 or 3-Wire MPU Serial Control Interface• Programmable Audio Data Interface Modes- I2S, Left, Right Justified or DSP- 16/20/24/32 bit Word Lengths- Master or Slave Clocking Mode• 20-Pin SSOP or 5x5mm QFN Package Options |
| CONDITION | MIN | MAX |
| Digital supply voltage | -0.3V | +3.63V |
| Analogue supply voltage | -0.3V | +3.63V |
| Voltage range digital inputs | DVSS -0.3V | DVDD +0.3V |
| Voltage range analogue inputs | AVDD -0.3V | AVDD +0.3V |
| Master Clock Frequency (see Note 4) | 40MHz | |
| Operating temperature range, TA | -10°C | +70°C |
| Storage temperature prior to soldering | 30°C max / 85% RH max | |
| Storage temperature after soldering | -65oC | +150oC |
| Package body temperature (soldering 10 seconds) | +240oC | |
| Package body temperature (soldering 2 minutes) | +183oC | |
