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參數資料
| 型號： | PCM1851APJTRG4 |
| 英文描述： | 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 ⅴ 2-CHANNEL MUX AND PGAE |
| 中文描述： | 24位，96千赫立體聲A / D轉換器6ⅴ2通道MUX和PGAE |
| 文件頁數： | 1/32頁 |
| 文件大小： | 409K |
| 代理商： | PCM1851APJTRG4 |
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FEATURES
Multiplexer and Programmable-Gain Amplifier
(PGA)
– 6
×
2-Channel Single-Ended Inputs
– Multiplexed Output
– Maximum Input Level: 2.4 V rms
– Input Resistance: 50 k
, Minimum
– PGA Gain: 11-dB to –11-dB Range, 0.5
dB/Step
24-Bit Delta-Sigma Stereo A/D Converter
Antialiasing Filter Included
Oversampling Decimation Filter
– Oversampling Frequency:
×
64
– Pass-Band Ripple:
±
0.05 dB
– Stop-Band Attenuation: –65 dB
– On-Chip High-Pass Filter: 0.91 Hz (48 kHz)
High Performance
– THD+N: 0.0023% (Typically)
– SNR: 101 dB (Typically)
– Dynamic Range: 102 dB (Typically)
APPLICATIONS
DVD/HDD/DVD+HDD Recorder
AV Amplifier Receiver
CD Recorder
MD Recorder
Multitrack Recorder
Electric Musical Instrument
DESCRIPTION
The PCM1850A/1851A is a high-performance, low-cost, single-chip stereo analog-to-digital converter with a
single-ended analog front end that consists of a 6-stereo-input multiplexer and wide-range PGA. The
PCM1850A/1851A includes a delta-sigma modulator with 64-times oversampling, a digital decimation filter and a
low-cut filter that removes the dc component of the input signal. For various applications, the PCM1850A/1851A
supports two modes (master and slave) and four data formats through a serial control interface, SPI for the
PCM1850A and I
2
C for the PCM1851A. The PCM1850A/1851A is suitable for a wide variety of cost-sensitive
DVD/CD/MD recorder and receiver applications where good performance and operation from a 5-V analog
supply and 3.3-V digital supply is required. The PCM1850A/1851A is fabricated using a highly advanced CMOS
process and is available in a small 32-pin TQFP package.
PCM1850A
PCM1851A
SLES173–MARCH 2006
24-BIT, 96-kHz STEREO A/D CONVERTER
WITH 6
×
2-CHANNEL MUX AND PGAE
PCM Audio Interface
– Master/Slave Mode Selectable
– Data Formats: 24-Bit Left-Justified, 24-Bit
I
2
S, 16-, 24-Bit Right-Justified
Mode Control by Serial Interface:
– With SPI Control (PCM1850A)
– With I
2
C Control (PCM1851A)
Sampling Rate: 16–96 kHz
System Clock: 256 f
s
, 384 f
s
, 512 f
s
, 768 f
s
Dual Power Supplies: 5 V for Analog, 3.3 V for
Digital
Package: 32-Pin TQFP
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.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
All other trademarks are the property of their respective owners.
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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