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 Soft Mute
Hi-Z for LRCK, BCK and DOUT
Power Up/Down Control for Each Module
30-dB to -12-dB Gain for Analog Inputs
0/12/20-dB Boost for Microphone Input
Parameter Settings for ALC
Three-Band Tone Control and 3D Sound
High-Pass Filter and Two-Stage Notch Filter
Pop Noise Reduction Circuit
Package:
24-DSBGA (2.49 mm × 3.49 mm)
Operation Temperature Range: -40°C to 85°C
APPLICATIONS
Portable Audio Player, Cellular Phone
Video Camcorder, Movie Digital Still Camera
PMP/DMB, Voice Recorder
Description
The PCM1870A is a low-power stereo ADC designed for portable digital audio applications, with line-input amplifier, boost amplifier, microphone bias, programmable gain control, sound effects, and auto level control (ALC). It is available in a 24-DSBGA (2.49-mm × 3.49-mm) package to save footprint. The PCM1870A accepts right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a 2- or 3-wire serial control port.
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
Inventory
Reported Distributor Inventory as of 11:34 AM GMT, 06 Nov 2009
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
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