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參數(shù)資料
| 型號： | TLV320AIC27TPFB |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 46/54頁 |
| 文件大?。?/td> | 732K |
| 代理商： | TLV320AIC27TPFB |
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TLV320AIC27
STEREO AUDIO CODEC
SLAS253A – MARCH 2000 – REVISED SEPTEMBER 2000
50
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended external components values
Table 24. External Component Values
COMPONENT
REFERENCE
SUGGESTED
VALUE
DESCRIPTION
C1 to C4
10 nF
Decoupling for DVDD and AVDD
C5 to C17
470 nF
AC coupling capacitors for setting dc level of analog inputs to VCAP1. Value chosen to give corner frequency
below 20 Hz for a minimum of 10-K
input impedance.
C18
1
F
C19
0.1
F
C20
10
F
C21
0.1
F
C22
10
F
Reference decoupling capacitors for ADC, DAC, Mixer, and CAP2 references. Ceramic type or similar.
C23
0.1
F
C24
10
F
C25
0.1
F
C26
10
F
C27
100 nF
3D low-pass filter. This value sets nominal 100 Hz.
C28
47 nF
3D high-pass filter. This value sets nominal 1 kHz.
C29 to C33
10
F
Output ac-coupling caps to remove VREF dc level from outputs
C34 and C35
22 pF
Optional capacitors for better crystal frequency stability
XT
24.576 MHz
AC’97 master clock frequency. A bias resistor is not required, but if connected will not affect operation if value
is large (above 1 M
).
recommendations for 3.3-V operation
The device performance with AVDD = 3.3 V is shown in the electrical characteristics section.
In 3.3-V analog operation, midrail reference scales to 1.5 V. All ADC and DAC references are 3/5 of their nominal
5-V value. Input and output signals that are 1 Vrms in 5-V applications scale to 660 mVrms in 3.3-V applications.
If 1-Vrms output is required, the mixer gain-adjust PGAs need to be increased by a factor of 3 in 1.5-dB steps.
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| TLV320AIC28 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:STEREO AUDIO CODEC WITH INTERGRATED HEADPHONE AND SPEAKER AMPLIFIERS |
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| TLV320AIC28IRGZG4 | 功能描述:接口—CODEC Lo-Pwr Stereo 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 |
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