Features: Stereo Sigma-Delta D/A Converter
98-dB Signal-to-Noise Ratio (SNR) Typical
94-dB Dynamic Range Typical
Optional 5-V Analog Power Supply for DAC Output (1 Vrms)
De-Emphasis Supported at 44.1 kHz for CD Applications
Programmable Audio Serial Port
Dual Input Data Channels (SDIN1 and SDIN2)
Single Digital Output Data Channel (SDOUT)
Programmable Digital Mixer
Programmable Multi-Band Digital Parametric EQ
Programmable Digital Bass and Treble Control (dynamically updateable)
Programmable Digital Volume Control (dynamically updateable)
SerialI2C Slave Port Allows Downloading of Control Data to the Device
Two I2C Address Pins Allow Cascading of Multiple Devices on the I2C Bus
Supports 2 speaker, 3 speaker+ , and 6 (5.1) speaker+ systems
Soft Mute (hardware pin control and software control)
Single 3.3-V Power Supply Operation
38-Pin TSSOP Package
External Analog-to-Digital Converter SupportedApplicationThe TLC320AD81C is designed to interface to a serial audio source and can handle up to two SDIN audio data streams. In a multiple SDIN application as shown, latency of the ADC should be taken into account.A controller is used to translate between USB audio and serial audio. Audio control functions are 2
downloaded to the TLC320AD81C through the I C port. One option is for this to be the same controller as the USB controller, although shown as separate controllers.
The output of the device interfaces to the power amplifiers, however, prefiltering is recommended. Voltage regulators, and bypass capacitors (not shown)
on the power supplies are recommended good practices.
Pinout
SpecificationsSupply voltage range, AVDD _PLL, DVDD . . . . . . . . . . . . . . . . . . . . . . . . . . ..... . 0.3 to + 5 V
Supply voltage range, AVDD _DAC, DVDD _DAC . . . . . . . . . . . . . . . . . . . . ....... . 0.3 to + 7 V
Digital Input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VDD + 0.3 V
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . 0 to + 70
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to + 150
Case temperature for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122.3°
Lead temperature from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . 97.8
ESD tolerance+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2000 VDescriptionTLC320AD81C features:
Programmable audio serial port I2S, left justified, and right justified
Dual input data channels (SDIN1 and SDIN2) 16-,18-, or 20-bit resolution (see section 6.1, Audio Data)
Single output data channel (SDOUT) 16-,18-, or 20-bit resolution (see section 6.1, Audio Data)
Accepts 32 fs or 64 fs (SCLK)+
I2C slave port
Two I2C programmable address pins (CS1 and CS2)
TLC320AD81C Data Sheet
