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PCM3793A_16 PDF预览

PCM3793A_16

更新时间： 2024-11-09 02:58:31
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
68页 1690K
描述
Low-Power Stereo Audio CODEC

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PCM3793A_16 数据手册

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PCM3793 is Not Recommended for New Designs  
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PCM3793  
PCM3794  
SLES193C–AUGUST 2006–REVISED FEBRUARY 2007  
16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital  
Speaker Amplifier  
FEATURES  
•
•
2 (I2C) or 3 (SPI) Wire Serial Control  
•
Analog Front End:  
Programmable Function by Register Control:  
–
–
–
–
Stereo Single-Ended Input With Multiplexer  
Mono Differential Input  
–
–
–
–
–
Digital Attenuation of DAC: 0 dB to –62 dB  
Power Up/Down Control for Each Module  
6-dB to –70-dB Gain for Analog Outputs  
30-dB to –12-dB Gain for Analog Inputs  
Stereo Programmable Gain Amplifier  
Microphone Boost Amplifier (20 dB) and  
Bias  
0/20 dB Boost Selectable for Microphone  
Input  
•
•
Analog BackEnd:  
–
–
Stereo/Mono Line Output With Volume  
–
–
–
–
0-dB to –21-dB Gain for Analog Mixing  
Parameter Settings for ALC  
Stereo/Mono Headphone Amplifier With  
Volume and Capless Mode  
Three-Band Tone Control and 3D Sound  
–
Stereo/Mono Digital Speaker Amplifier  
(BTL) With Volume (PCM3793)  
High-Pass Filter and Two-Stage Notch  
Filter  
Analog Performance:  
–
Analog Mixing  
–
–
–
Dynamic Range: 93 dB (DAC)  
Dynamic Range: 90 dB (ADC)  
•
•
•
•
Pop-Noise Reduction Circuit  
Short and Thermal Protection Circuit  
Package: 5-mm × 5-mm QFN Pacakge  
Operation Temperature Range: –40°C to 85°C  
40-mW + 40-mW Headphone Output at  
RL = 16 Ω  
–
700-mW + 700-mW Speaker Output at  
RL = 8 Ω  
APPLICATIONS  
•
•
Power Supply Voltage  
•
•
•
Portable Audio Player, Cellular Phone  
Video Camcorder, Digital Still Camera  
PMP/DMB  
–
–
–
–
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  
DESCRIPTION  
2.4 V to 3.6 V for Power Amplifier Section  
The PCM3793/94 is a low-power stereo CODEC  
designed for portable digital audio applications. The  
device integrates stereo digital speaker amplifier,  
headphone amplifier, line amplifier, line input, boost  
amplifier, microphone bias, programmable gain  
control, analog mixing, sound effects, and automatic  
level control (ALC). It is available in a small-footprint,  
5-mm × 5-mm QFN package. The PCM3793/94  
accepts right-justified, left-justified, I2S, and DSP  
formats, providing easy interfacing to audio DSP,  
decoder, and encoder chips. Sampling rates up to 50  
kHz are supported. The user-programmable  
functions are accessible through a two- or three-wire  
serial control port.  
Low Power Dissipation:  
–
–
–
7 mW in Playback, 1.8 V/2.4 V, 48 kHz  
13 mW in Record, 1.8 V/2.4 V, 48 kHz  
30 µW in Power Down  
•
•
•
Sampling Frequency: 5 kHz to 50 kHz  
Automatic Level Control for Recording  
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  
Headphone Plug Insert Detection  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2006–2007, Texas Instruments Incorporated  
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