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參數資料
| 型號： | TLV320AIC22PTR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | ROHS COMPLIANT, PLASTIC, LQFP-48 |
| 文件頁數： | 10/55頁 |
| 文件大小： | 782K |
| 代理商： | TLV320AIC22PTR |
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TLV320AIC22
DUAL VOIP CODEC
SLAS281B – JULY 2000 – REVISED JUNE 2002
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
power down and reset (continued)
Table 1. Pin States During Hardware and Codec Power Down
PIN NAME
STATE DURING CODEC POWER DOWN
STATE DURING HARDWARE POWER DOWN
HDOUTM
Internal common-mode voltage (1.5 V)
Floating
HDOUTP
Internal common-mode voltage (1.5 V)
Floating
SPOUTP
Internal common-mode voltage (1.5 V)
Floating
SPOUTM
Internal common-mode voltage (1.5 V)
Floating
HSOUTM
Internal common-mode voltage (1.5 V)
Floating
HSOUTP
Internal common-mode voltage (1.5 V)
Floating
LNOUTM
Internal common-mode voltage (1.5 V)
Floating
LNOUTP
Internal common-mode voltage (1.5 V)
Floating
HDINP
Normal operation
Floating
HDINM
Normal operation
Floating
MCINP
Normal operation
Floating
MCINM
Normal operation
Floating
HSINM
Normal operation
Floating
HSINP
Normal operation
Floating
LNIN
Normal operation
Floating
LNINM
Normal operation
Floating
LCDOUT
Normal operation
Floating
MCBIAS
Normal operation
Floating
PWRDWN
Normal operation
SDA
Normal operation
SCL
Normal operation
AD1
Normal operation
AD0
Normal operation
I2C/SPI
Normal operation
DOUT
Normal operation
DIN
Normal operation
Logic high
FSYNC
Normal operation
BCLK
Normal operation
VCOM
Normal operation
Floating
M/S
Normal operation
CIINP
Pulled to AVSS1/AVSS2 through 40 k
CIINM
Pulled to AVSS1/AVSS2 through 40 k
The capability to individually power down each output driver also is present. Table 2 shows the typical power
savings that can be achieved if the associated driver is powered down.
Table 2. Powering Down Individual Drivers
DRIVER POWERED
DOWN
REGISTER USED TO
POWER DOWN DRIVER
TYPICAL POWER SAVINGS WHEN
OUTPUT POWERED DOWN
Handset
13
3.2 mA
Headset
14
3.2 mA
Speaker
11
1 mA
Line output
14
2.5 mA
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| TLV320AIC23_06 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Stereo Audio CODEC, 8-to 96-kHz, With Integrated Headphone Amplifier |
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