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參數資料
| 型號： | PCM1773RGAR |
| 元件分類： | DAC |
| 英文描述： | LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER |
| 中文描述： | 低電壓和低功耗立體聲音頻數模轉換器與線路輸出AMPIIFIER |
| 文件頁數： | 23/29頁 |
| 文件大小： | 309K |
| 代理商： | PCM1773RGAR |
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SLES010D – SEPTEMBER 2001 – REVISED MAY 2004
www.ti.com
23
ATL[5:0]: Digital Attenuation Level Setting for Line Output, V
OUT
L
Default value: 11 1111b
Line output, V
OUT
L includes a digital attenuation function.
The attenuation level can be set from 0 dB to –62 dB, in
1-dB steps.
Changes in attenuator levels are made by incrementing or decrementing by one step (1 dB) for every
8/f
S
time internal until the programmed attenuator setting is reached. Alternatively, the attenuation level may be
set to infinite attenuation (or mute).
The following table shows attenuation levels for various settings:
ATL[5:0]
11 1111b
0 dB, no attenuation (default)
11 1110b
–1 dB
11 1101b
–2 dB
ATTENUATION LEVEL SETTING
00 0010b
00 0001b
00 0000b
–61 dB
–62 dB
Mute
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 02
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
ATR5
ATR4
ATR3
ATR2
ATR1
ATR0
IDX[6:0]:
000 0010b
ATR[5:0]: Digital Attenuation Level Setting for Line Output, V
OUT
R
Default Value: 11 1111b
Line output, V
OUT
R includes a digital attenuation function.
The attenuation level can be set from 0 dB to –62 dB, in
1-dB steps.
Changes in attenuator levels are made by incrementing or decrementing by one step (1 dB) for every
8/f
S
time internal until the programmed attenuator setting in reached. Alternatively, the attenuation level can be
set to infinite attenuation (or mute).
To set the attenuation levels for ATR[5:0], see the table for ATL[5:0], register 01.
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 03
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
OVER
RSV
RINV
AMIX
DEM
FMT2
FMT1
FMT0
IDX[6:0]:
000 0011b
OVER: Oversampling Control
Default Value: 0
OVER = 0
OVER = 1
128f
S
oversampling
192f
S
, 256f
S
, 384f
S
oversampling
The OVER bit controls the oversampling rate of the
-
Σ
D/A converters. When it operates at a low sampling rate,
less than 24 kHz, this function is recommended.
RINV: Polarity Control for Line Output, V
OUT
R
Default Value: 0
RINV = 0
RINV = 1
Not inverted
Inverted output
The RINV bits allow the user to control the polarity of the line output, V
OUT
R. This function can be used to connect
the monaural speaker with BTL connection method. This bit is recommended to be 0 during the power-up/-down
sequence for minimizing audible pop noise.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCM1773RGARG4 | 功能描述:音頻數/模轉換器 IC Lo-Vlt & Lo-Pwr Ster DAC w/Lineout Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1774 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:16-Bit, Low-Power Stereo Audio DAC With Analog Mixing, Line and Headphone Outputs |
| PCM1774RGPR | 功能描述:音頻數/模轉換器 IC Lo-Pwr Stereo DAC RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1774RGPRG4 | 功能描述:音頻數/模轉換器 IC Low-Pwr Stereo DAC with HP Amp RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
| PCM1774RGPT | 功能描述:音頻數/模轉換器 IC L-P Stero DAC w/ HP Amplifier RoHS:否 制造商:Texas Instruments 轉換器數量: 分辨率:16 bit 接口類型:I2S, UBS 轉換速率: 信噪比:98 dB 工作電源電壓:5 V DAC 輸出端數量:2 工作溫度范圍:- 25 C to + 85 C 電源電流:23 mA 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-32 封裝:Reel |
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