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参数资料
| 型号： | PGA4311K |
| 英文描述： | 4 CHANNEL AUDIO VOLUME CONTROL |
| 中文描述： | 4通道音频音量控制 |
| 文件页数： | 6/15页 |
| 文件大小： | 481K |
| 代理商： | PGA4311K |
SBOS230A
–
MARCH 2002
–
REVISED JUNE 2002
www.ti.com
6
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25
°
C, VA+ = +5V, VA
–
=
–
5V, VD+ = +5V, RL = 100k
, CL = 20pF, BW measure = 10Hz to 20kHz, unless otherwise noted.
(NOTE: All plots taken with PGA4311 A
–
Grade.)
GENERAL DESCRIPTION
The PGA4311 is a four-channel audio volume control.
It may be used in a wide array of professional and
consumer audio equipment. The PGA4311 is fabricated
in a sub-micron CMOS process.
The heart of the PGA4311 is a resistor network, an analog
switch array, and a high-performance op amp stage. The
switches are used to select taps in the resistor network
that, in turn, determine the gain of the amplifier stage.
Switch selections are programmed using a serial control
port. The serial port allows connection to a wide variety of
host controllers. See Figure 1 for a functional block
diagram of the PGA4311.
POWER
–
UP STATE
On power up,
“
power-up reset
”
is activated for about
100ms during which the circuit is in hardware MUTE state
and all internal flip-flops are reset. At the end of this period,
the offset calibration is initiated without any external signals.
Once this has been completed, the gain byte value for all
channels are set to 00
HEX
, or the software MUTE condi-
tion. The gain will remain at this setting until the host con-
troller programs new settings for for each channel via the
serial control port.
相关PDF资料 |
PDF描述 |
|---|---|
| PGA4311U | 4 CHANNEL AUDIO VOLUME CONTROL |
| PGB400 | ZINC GALVANISING SPRAY |
| PGC36SACN-M | JT 6C 6#22D SKT PLUG |
| PGC36DACN-M | JT 6C 6#22M SKT WALL RECP |
| PGC36SAAN-M | SQUARE POST HEADER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PGA4311U | 功能描述:音频放大器 4-Ch +/-5V Audio Vol Cntrl RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| PGA4311U | 制造商:Texas Instruments 功能描述:AUDIO VOLUME CONTROL 4311 SOIC28 |
| PGA4311U/1K | 功能描述:音频放大器 Multich FSK/OOK CMOS RF Transceiver RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| PGA4311U/1KG4 | 功能描述:音频放大器 IEEE 802.15.4 RF Transceiver RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| PGA4311U2 | 制造商:BB 制造商全称:BB 功能描述:4-Channel Audio Volume Control |
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