參數(shù)資料
型號(hào): PCM3794ARHBT
元件分類: Codec
英文描述: 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier
中文描述: 16位,低功耗立體聲音頻編解碼器麥克風(fēng)偏置,耳機(jī),揚(yáng)聲器放大器和數(shù)字
文件頁數(shù): 41/68頁
文件大?。?/td> 982K
代理商: PCM3794ARHBT
www.ti.com
PCM3793A
PCM3794A
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Registers 79 and 80
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 79
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
ALV5
ALV4
ALV3
ALV2
ALV1
ALV0
Register 80
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
RSV
ARV5
ARV4
ARV3
ARV2
ARV1
ARV0
IDX[6:0]:
100 1111b (4Fh): Register 79
IDX[6:0]:
101 0000b (50h): Register 80
ALV[5:0]: Gain Control for PG3 (R-Channel ADC Analog Input)
ARV[5:0]: Gain Control for PG4 (L-Channel ADC Analog Input)
Default value: 00
The gain of the PG3 and PG4 inputs to the ADC can be independently controlled from 30 dB to –12 dB in 1-dB
steps. The ADC output may have zipper noise while changing the level. This noise can be reduced by using
zero-cross detection (register 86, ZCRS).
Table 11. Gain Level Setting
ALV[5:0],
ARV[5:0]
10 1010
10 1001
10 1000
10 0111
10 0110
10 0101
10 0100
10 0011
10 0010
10 0001
10 0000
01 1111
01 1110
01 1101
01 1100
01 1011
01 1010
01 1001
01 1000
01 0111
01 0110
01 0101
GAIN LEVEL
SETTING
30 dB
29 dB
28 dB
27 dB
26 dB
25 dB
24 dB
23 dB
22 dB
21 dB
20 dB
19 dB
18 dB
17 dB
16 dB
15 dB
14 dB
13 dB
12 dB
11 dB
10 dB
9 dB
ALV[5:0],
ARV[5:0]
01 0100
01 0011
01 0010
01 0001
01 0000
00 1111
00 1110
00 1101
00 1100
00 1011
00 1010
00 1001
00 1000
00 0111
00 0110
00 0101
00 0100
00 0011
00 0010
00 0001
00 0000
GAIN LEVEL
SETTING
8 dB
7 dB
6 dB
5 dB
4 dB
3 dB
2 dB
1 dB
0 dB
–1 dB
–2 dB
–3 dB
–4 dB
–5 dB
–6 dB
–7 dB
–8 dB
–9 dB
–10 dB
–11 dB
–12 dB (default)
2A
29
28
27
26
25
24
23
22
21
20
1F
1E
1D
1C
1B
1A
19
18
17
16
15
14
13
12
11
10
0F
0E
0D
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
41
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參數(shù)描述
PCM3794ARHBTG4 功能描述:接口—CODEC 16B Low Pwr Stereo Audio 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
PCM3794RHB 制造商:Texas Instruments 功能描述:
PCM3794RHBR 功能描述:接口—CODEC Very Low-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
PCM3794RHBRG4 功能描述:接口—CODEC Very Low-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
PCM3794RHBT 功能描述:接口—CODEC Very Low-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