BurrĆBrown Products from Texas Instruments
PCM1774
SLAS551 – JULY 2007
16-Bit, Low-Power Stereo Audio DAC With Analog Mi...
BurrĆBrown Products from Texas Instruments
PCM1774
SLAS551 – JULY 2007
16-Bit, Low-Power Stereo Audio DAC With Analog Mixing, Line and Headphone Outputs
FEATURES
Analog Front End: – Stereo Single-Ended Input
– Microphone Amplifier (12 dB, 20 dB) Analog Back End:
– Stereo/Mono Line Output With Volume
– Stereo/Mono Headphone Amplifier With Volume
Analog Performance: – Dynamic Range: 93 dB
– 40-mW + 40-mW Headphone Output at RL = 16 Ω
Power Supply
Voltage – 1.71 V to 3.6 V for Digital I/O Section
– 1.71 V to 3.6 V for Digital Core Section
– 2.4 V to 3.6 V for Analog Section
– 2.4 V to 3.6 V for Power Amplifier Section Low Power Dissipation:
– 6.4 mW in Playback, 1.8 V/2.4 V, 44.1 kHz – 3.3 μW in Power Down Sampling Frequency: 5 kHz to 50 kHz Operation From a Single Clock Input Without PLL System Clock: – Common-Audio Clock (256 fS/384 fS), 12/24,
13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
2 (I2C™) or 3 (SPI) Wire Serial Control Programmable Function by Register Control: – Digital Attenuation: 0 dB to –62 dB
– Digital Gain of DAC: 0, 6, 12, 18 dB
– Power Up/Down Control for Each Module
– 6-dB to –70-dB Gain for Analog Outputs
– 0/12/20 dB for Microphone Input
– 0-dB to –21-dB Gain for Analog Mixing
– Three-Band Tone Control and 3D Sound
– Analog Mixing Control Pop-Noise Reduction Circuit Short Protection Circuit Package: 4-mm × 4-mm QFN Package Operation Temperature Range: –40°C to 85°C
APPLICATIONS
Portable Audio Player, Cellular Phone Video Cam...