參數(shù)資料
型號(hào)： PCM3052ARTF
元件分類： Codec
英文描述： 24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA
中文描述： 24位，96千赫立體聲音頻編解碼器麥克風(fēng)放大器，偏見(jiàn)，MUXTIPLEXER，和PGA
文件頁(yè)數(shù)： 42/45頁(yè)
文件大小： 583K
代理商： PCM3052ARTF
www.ti.com
DESIGN AND LAYOUT CONSIDERATIONS IN APPLICATION
Power Supply Pins (V
CC
1, V
CC
2, V
CC
3, V
DD
)
The digital and analog power supply lines to the PCM3052A should be bypassed to the corresponding ground
pins with 0.1-
μ
F ceramic and 10-
μ
F electrolytic capacitors as close to the pins as possible to maximize the
dynamic performance of the ADC and DAC.
Grounding (AGND1, AGND2, AGND3, DGND)
V
IN
L, V
IN
R Pins
A 0.22-
μ
F electrolytic capacitor is recommended as an ac-coupling capacitor, which gives a 5-Hz cutoff
frequency at PGA gain = 0 dB. If higher full-scale input voltage is required, it can be adjusted by adding only one
series resistor to V
IN
X pins.
V
REF
1, V
REF
2, V
COM
Pins
Both 0.1-
μ
F ceramic and 10-
μ
F electrolytic capacitors are recommended from V
REF
1 and V
REF
2 to AGND1, and
from V
COM
to AGND2, to ensure low source impedance of the ADC and DAC references. These capacitors
should be located as close as possible to the V
REF
1, V
REF
2, and V
COM
pins to reduce dynamic errors on the ADC
and DAC references.
MBIAS Pin
A 10-
μ
F electrolytic capacitor is recommended between MBIAS and AGND3 to ensure low noise on MBIAS.
REFO Pin
Both 0.1-
μ
F ceramic and 10-
μ
F electrolytic capacitors are recommended between REFO and AGND1 to ensure
low noise on REFO.
MINM, MINP Pins
A 1-
μ
F non-polar electrolytic capacitor which gives a 27-Hz cutoff frequency, is recommended as coupling
capacitor.
System Clock
External Mute Control
PCM3052A
SLES160–NOVEMBER 2005
Although the PCM3052A has four power lines to maximize the potential of dynamic performance, using one
common 5-V power supply for V
CC
1, V
2, and V
3. A 3.3-V power supply for V
, which is generated from the
5-V power supply for V
CC
1, V
CC
2, and V
CC
3, is recommended to avoid unexpected power supply trouble like
latch-up or power supply sequencing problems.
To maximize the dynamic performance of the PCM3052A, the analog and digital grounds are not connected
internally. These points should have low impedance to avoid digital noise and signal components feeding back
into the analog ground. They should be connected directly to each other under the parts to reduce the potential
of noise problems.
The quality of SCKI can influence dynamic performance, as the PCM3052A (both of DAC and ADC) operates
based on SCKI. Therefore, it might be necessary to consider the jitter, duty, rise and fall time, etc. of the system
clock.
For power-down ON/OFF control without click noise which is generated by DAC output dc level changes, the
external mute control is generally required. The control sequence, which is described as
External Mute ON,
CODEC Power Down ON, SCKI stop and resume if necessary, CODEC Power Down OFF, and External Mute
OFF
, is recommended.
42
相關(guān)PDF資料
PDF描述
PCM3052ARTFG4 24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA
PCM3052ARTFR 24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA
PCM3052ARTFRG4 24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA
PCM3501 Low Voltage, Low Power, 16-Bit, Mono VOICE/MODEM CODEC
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCM3052ARTFG4 功能描述:接口—CODEC 24B Stereo Audo Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3052ARTFR 功能描述:接口—CODEC 24B Stereo Audo Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3052ARTFRG4 功能描述:接口—CODEC 24B Stereo Audo Codec RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel
PCM3052RTFR 制造商:Texas Instruments 功能描述:
PCM3060 制造商:BB 制造商全稱:BB 功能描述:24-BIT, 96/192-kHz ASYNCHRONOUS STEREO AUDIO CODEC
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