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參數(shù)資料
| 型號： | SRC4193 |
| 英文描述： | 192kHz Stereo Asynchronous Sample Rate Converters |
| 中文描述： | 192kHz立體聲異步采樣速率轉(zhuǎn)換器 |
| 文件頁數(shù)： | 16/31頁 |
| 文件大?。?/td> | 1033K |
| 代理商： | SRC4193 |
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SRC4192, SRC4193
SBFS022A
16
www.ti.com
PRODUCT OVERVIEW
The SRC4192 and SRC4193 are asynchronous sample rate
converters (ASRC) designed for professional audio applica-
tions. Operation at input and output sampling frequencies up
to 212kHz is supported, with an input/output sampling ratio
range of 16:1 to 1:16. Excellent dynamic range and Total
Harmonic Distortion + Noise (THD+N) are achieved by em-
ploying high performance, linear phase digital filtering with
better than 140dB of image rejection. Digital filtering options
allow for lower group delay processing. These include a low
group delay option for the interpolation and re-sampler func-
tion, as well as a direct down-sampling option for the decima-
tion function (SRC4193 only).
The audio input and output ports support standard audio data
formats, as well as a TDM interface mode. Word lengths of
24-, 20-, 18-, and 16-bits are supported. Both ports may
operate in Slave mode, deriving their word and bit clocks
from external input and output devices. Alternatively, one
port may operate in Master mode while the other remains in
Slave mode. In Master mode, the LRCK and BCK clocks are
derived from the reference clock input, RCKI. The flexible
configuration of the input and output ports allows connection
to a wide variety of audio data converters, interface devices,
digital signal processors, and programmable logic.
A bypass mode is included, which allows audio data to be
passed directly from the input port to the output port, bypass-
ing the ASRC function. The bypass option is useful for
passing through encoded or compressed audio data, or non-
audio control or status data.
A soft mute function is available on both the SRC4192 and
SRC4193. Digital output attenuation is available only for the
SRC4193. Both soft mute and digital attenuation functions
provide artifact-free operation, while allowing muting or level
adjustment of the audio output signal. The mute attenuation
is typically
–
144dB, while the digital attenuation control is
adjustable from 0dB to
–
127.5dB in 0.5dB steps.
The SRC4193 includes a three-wire SPI port, which is used
to access on-chip control registers for configuration of inter-
nal functions. The port can be easily interfaced to micropro-
cessors or digital signal processors with synchronous serial
port peripherals.
FUNCTIONAL BLOCK DIAGRAM
Figure 1 shows a functional block diagram of the SRC4192
and SRC4193. Audio data is received at the input port,
clocked by either the audio data source in Slave mode, or by
the SRC4192/4193 in Master mode. The output port data is
clocked by either the audio data source in Slave mode, or by
MODE [2:0]
IFMT [2:0
OFMT [1:0]
OWL [1:0]
MUTE
BYPAS
LGRP
RST
Control
Logic
(SRC4192)
Rate
Estimator
LRCKI
LRCKO
REFCLK
RDY
RATIO (SRC4193 only)
MUTE
BYPASS
RST
CS
CCLK
CDATA
SPI and
Control Logic
(SRC4193)
LRCKO
BCKO
SDOUT
TDMI
Audio
Output
Port
Mux
RCKI
REFCLK
Reference
Clock
LRCKI
BCKI
SDIN
Audio
Input
Port
Interpolation
Filters
16f
SIN
f
SIN
f
SOUT
V
DD
DGND
VIO
DGND
Re-Sampler
16f
SOUT
Decimation
Filters
f
SOUT
Direct
Down-Sampler
(SRC4193 only)
Power
FIGURE 1. SRC4192/4193 Functional Block Diagram.
相關PDF資料 |
PDF描述 |
|---|---|
| SRC4194 | 4-Channel, Asynchronous Sample Rate Converter |
| SRC4194IPAG | 4-Channel, Asynchronous Sample Rate Converter |
| SRC4194IPAGR | 4-Channel, Asynchronous Sample Rate Converter |
| SRC4194IPAGT | 4-Channel, Asynchronous Sample Rate Converter |
| SRD00224H | FIBER OPTIC RECEIVER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SRC4193IDB | 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風格:SMD/SMT |
| SRC4193IDBG4 | 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風格:SMD/SMT |
| SRC4193IDBR | 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風格:SMD/SMT |
| SRC4193IDBRG4 | 功能描述:音頻采樣頻率轉(zhuǎn)換器 Hi-End Sample Rate Converter RoHS:否 制造商:Texas Instruments THD + 噪聲:- 140 dB 接口:I2C, SPI 工作電源電壓:1.65 V to 2 V / 3 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:TQFP-48 安裝風格:SMD/SMT |
| SRC4194 | 制造商:BB 制造商全稱:BB 功能描述:4-Channel, Asynchronous Sample Rate Converter |
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