參數(shù)資料
型號： PCM3794A
元件分類： Codec
英文描述： 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier
中文描述： 16位，低功耗立體聲音頻編解碼器麥克風偏置，耳機，揚聲器放大器和數(shù)字
文件頁數(shù)： 1/68頁
文件大小： 982K
代理商： PCM3794A
FEATURES
Analog Front End:
–
Stereo Single-Ended Input With Multiplexer
–
Mono Differential Input
–
Stereo Programmable Gain Amplifier
–
Microphone Amplifier (20 dB) and Bias
Analog Back End:
–
Stereo/Mono Line Output With Volume
–
Stereo/Mono Headphone Amplifier With
Volume and Capless Mode
–
Stereo/Mono Digital Speaker Amplifier
(BTL) With Volume
Analog Performance:
–
Dynamic Range: 93 dB (DAC)
–
Dynamic Range: 90 dB (ADC)
–
40-mW + 40-mW Headphone Output at
R
L
= 16
–
700-mW + 700-mW Speaker Output at
R
L
= 8
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:
–
7 mW in Playback, 1.8 V/2.4 V, 48 kHz
–
13 mW in Record, 1.8 V/2.4 V, 48 kHz
–
3.3
μ
W 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 f
S
/384 f
S
), 12/24,
13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz
Headphone Plug Insert Detection
APPLICATIONS
Portable Audio Player, Cellular Phone
Video Camcorder, Digital Movie/Still Camera
PMP/DMB
DESCRIPTION
The PCM3793A/94A 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,
control, analog mixing, sound effects, and automatic
level control (ALC). It is available in a small-footprint,
5-mm
×
5-mm QFN package. The PCM3793A/94A
supports right-justified, left-justified, I
2
S, and DSP
formats, providing easy interfacing to audio DSP and
decoder/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.
PCM3793A
PCM3794A
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital
Speaker Amplifier
2 (I
2
C) or 3 (SPI) Wire Serial Control
Programmable Function by Register Control:
–
Digital Attenuation of DAC: 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
–
30-dB to –12-dB Gain for Analog Inputs
–
0/20 dB Selectable for Microphone Input
–
0-dB to –21-dB Gain for Analog Mixing
–
Parameter Settings for ALC
–
Three-Band Tone Control and 3D Sound
–
High-Pass Filter: 4-, 120-, 240-Hz
–
Two-Stage Programmable Notch Filter
–
Analog Mixing Control
Pop-Noise Reduction Circuit
Short and Thermal Protection Circuit
Package: 5-mm
×
5-mm QFN Pacakge
Operation Temperature Range: –40
°
C to 85
°
C
programmable
gain
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 2007, Texas Instruments Incorporated
相關PDF資料
PDF描述
PCM3794ARHBR 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier
PCM3794ARHBT 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier
PCM4201 Low Power, 24-Bit, Single Channel Audio Analog-to-Digital Converter
PCM4201PW Low Power, 24-Bit, Single Channel Audio Analog-to-Digital Converter
PCM4201PWR Low Power, 24-Bit, Single Channel Audio Analog-to-Digital Converter
相關代理商/技術參數(shù)
參數(shù)描述
PCM-3794-A10 制造商:AAEON Technology Inc 功能描述:PCI-104 2-SLOT PCMCIA (HOT SWAP) - Bulk
PCM-3794-A10-01 制造商:AAEON Technology Inc 功能描述:PCI-104 2-SLOT PCMCIA (HOT SWAP) & PCM-3594 IEEE-1394 3-PORT - Bulk
PCM3794ARHB 制造商:Texas Instruments 功能描述:AUD CODEC 2ADC / 2DAC 16BIT 32QFN EP - Tape and Reel
PCM3794ARHBR 功能描述:接口—CODEC 16B Lo Pwr St Audio CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3794ARHBRG4 功能描述:接口—CODEC 16B Low Pwr Stereo Audio CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
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