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參數(shù)資料
| 型號： | PCM3794 |
| 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)： | 1/63頁 |
| 文件大小： | 915K |
| 代理商： | PCM3794 |
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FEATURES
Analog Front End:
– Stereo Single-Ended Input With Multiplexer
– Mono Differential Input
– Stereo Programmable Gain Amplifier
– Microphone Boost Amplifier (20 dB) and
Bias
Analog BackEnd:
– Stereo/Mono Line Output With Volume
– Stereo/Mono Headphone Amplifier With
Volume and Capless Mode
– Stereo/Mono Digital Speaker Amplifier
(BTL) With Volume (PCM3793)
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
– 30
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
APPLICATIONS
Portable Audio Player, Cellular Phone
Video Camcorder, Digital Still Camera
PMP/DMB
DESCRIPTION
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,
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, I
2
S, and DSP
formats, providing easy interfacing to audio DSP,
decoder, and encoder chips. Sampling rates up to 50
kHz
are
supported.
functions are accessible through a two- or three-wire
serial control port.
PCM3793
PCM3794
SLES193A–AUGUST 2006–REVISED SEPTEMBER 2006
16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital
Speaker Amplifier
Headphone Plug Insert Detection
2 (I
2
C) or 3 (SPI) Wire Serial Control
Programmable Function by Register Control:
– 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
– 0/20 dB Boost 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 and Two-Stage Notch Filter
– Analog Mixing
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
The
user-programmable
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, Texas Instruments Incorporated
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PCM-3794 | 制造商:AAEON 制造商全稱:AAEON 功能描述:PCI-104 2-slot PCMCIA Module /Three IEEE-1394 Port Daughter Board |
| PCM3794A | 制造商:BB 制造商全稱:BB 功能描述:16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier |
| 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 |
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