Datasheet > SRC4194IPAGR

SRC4194IPAGR

更新时间： 2024-11-01 22:16:11

品牌	Logo	应用领域
BB		转换器
页数	文件大小	规格书
40页	497K
描述
4-Channel, Asynchronous Sample Rate Converter

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SRC4194IPAGR 数据手册

SRC4194

SBFS025A − JUNE 2004 − REVISED JULY 2004

4-Channel, Asynchronous Sample Rate Converter

INPUT-TO-OUTPUT SAMPLING RATIO

READBACK (SOFTWARE MODE ONLY)

F_DEATURES

AUTOMATIC SENSING OF INPUT-TO-OUTPUT

SAMPLING RATIO

POWER-DOWN MODES

SUPPORTS OPERATION FROM A SINGLE +1.8V

OR +3.3V POWER SUPPLY

WIDE INPUT-TO-OUTPUT SAMPLING RANGE:

16:1 to 1:16

AVAILABLE IN A TQFP-64 PACKAGE

SUPPORTS INPUT AND OUTPUT SAMPLING

RATES UP TO 212kHz

DYNAMIC RANGE: 144dB (−60dbFS Input,

BW = 20Hz to f /2)

A_DPPLICATIONS

DIGITAL MIXING CONSOLES

THD+N: −140dB (0dbFS Input, BW = 20Hz to f_s/2)

DIGITAL AUDIO WORKSTATIONS

AUDIO DISTRIBUTION SYSTEMS

BROADCAST STUDIO EQUIPMENT

GENERAL DIGITAL AUDIO PROCESSING

HIGH-PERFORMANCE, LINEAR-PHASE DIGITAL

FILTERING WITH BETTER THAN 140dB OF

STOP BAND ATTENUATION

FLEXIBLE AUDIO SERIAL PORTS:

− Master or Slave Mode Operation

− Supports I²S, Left-Justified, Right-Justified,

and TDM Data Formats

− TDM Mode Allows Daisy-Chaining of Up to

Four Devices

DESCRIPTION

The SRC4194 is a four-channel, asynchronous sample

rate converter (ASRC), designed for professional and

broadcast audio applications. The SRC4194 combines a

wide input-to-output sampling ratio with outstanding

dynamic range and ultra low distortion. The input and

output serial ports support the most common audio data

formats, as well as a time division multiplexed (TDM)

format. This allows the SRC4194 to interface to a wide

range of audio data converters, digital audio receivers and

transmitters, and digital signal processors.

SUPPORTS 24-, 20-, 18-, or 16-BIT INPUT AND

OUTPUT DATA:

− All Output Data is Dithered from the Internal

28-Bit Data Path

SERIAL PERIPHERAL INTERFACE (SPI) PORT

SUPPORTS REGISTER READ AND WRITE

OPERATIONS IN SOFTWARE MODE

BYPASS MODE:

− Routes Input Port Data Directly to the Output

Port

The SRC4194 may be operated in Hardware mode as a

standalone pin-programmed device, with dedicated

control pins for serial port mode, audio data format, soft

mute, bypass, and digital filtering functions. Alternatively,

the SRC4194 may be operated in Software mode, where

a four-wire serial peripheral interface (SPI) port provides

access to internal control and status registers.

FOUR GROUP DELAY OPTIONS FOR THE

INTERPOLATION FILTER

DIRECT DOWNSAMPLING OPTION FOR THE

DECIMATION FILTER

DIGITAL DE-EMPHASIS FILTER:

− User-Selectable for 32kHz, 44.1kHz, and

48kHz Sampling Rates

The SRC4194 operates from either a +1.8V core supply or

a +3.3V core supply. When operating from +3.3V, the

+1.8V required by the core logic is derived from an internal

voltage regulator. The SRC4194 also requires a digital I/O

supply, which operates from +1.65V to +3.6V. The

SRC4194 is available in a TQFP-64 package.

SOFT MUTE FUNCTION

PROGRAMMABLE DIGITAL OUTPUT

ATTENUATION (SOFTWARE MODE ONLY):

− 256 Steps: 0dB to −127.5dB with 0.5dB Steps

Patents pending.

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.

All trademarks are the property of their respective owners.

ꢀꢁ ꢂ ꢃꢄ ꢅ ꢆꢇ ꢂꢈ ꢃ ꢉꢆꢉ ꢊꢋ ꢌꢍ ꢎ ꢏꢐ ꢑꢊꢍꢋ ꢊꢒ ꢓꢔ ꢎ ꢎ ꢕꢋꢑ ꢐꢒ ꢍꢌ ꢖꢔꢗ ꢘꢊꢓ ꢐꢑꢊ ꢍꢋ ꢙꢐ ꢑꢕꢚ ꢀꢎ ꢍꢙꢔ ꢓꢑꢒ

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与SRC4194IPAGR相关器件

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SRC4382IPFB	BB	获取价格	Two-Channel, Asynchronous Sample Rate Converter with Integrated Digital Audio Interface Re
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