參數(shù)資料
型號: PCM3793ARHBR
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): 32/68頁
文件大?。?/td> 982K
代理商: PCM3793ARHBR
www.ti.com
Register Definitions
PCM3793A
PCM3794A
SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Registers 64 and 65
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
Register 64
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
HMUL
HLV5
HLV4
HLV3
HLV2
HLV1
HLV0
Register 65
0
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
RSV
HMUR
HRV5
HRV4
HRV3
HRV2
HRV1
HRV0
IDX[6:0]:
100 0000b (40h): Register 64
IDX[6:0]:
100 0001b (41h): Register 65
HMUL: Analog Mute Control for HPL (Line or Headphone L-Channel)
HMUR: Analog Mute Control for HPR (Line or Headphone R-Channel)
Default value: 1
HPOL/LOL and HPOR/LOR can be independently muted to zero level when HMUL and HMUR = 1. These
settings take precedence over analog volume level settings.
HMUL, HMUR = 0
HMUL, HMUR = 1
Mute disabled
Mute enabled (default)
HLV[5:0]: Analog Volume for HPL (Headphone L-Channel)
HRV[5:0]: Analog Volume for HPR (Headphone R-Channel)
Default value: 00 0000.
HPOL/LOL and HPOR/LOR can be independently controlled between 6 dB and –70 dB, with step size
depending on the gain level as shown in
Table 7
. Outputs may have zipper noise while changing levels. This
noise can be reduced by selecting zero-cross detection (register 86, ZCRS).
Table 7. Headphone Gain Level Setting
HLV[5:0],
HRV[5:0]
GAIN LEVEL
SETTING
HLV[5:0],
HRV[5:0]
GAIN LEVEL
SETTING
HLV[5:0],
HRV[5:0]
GAIN LEVEL
SETTING
STEP
STEP
STEP
11 1111
3F
6 dB
10 1001
29
–5 dB
01 0011
13
–21 dB
11 1110
3E
5.5 dB
10 1000
28
–5.5 dB
01 0010
12
–22 dB
1 dB
11 1101
3D
5 dB
10 0111
27
–6 dB
01 0001
11
–23 dB
11 1100
3C
4.5 dB
10 0110
26
–6.5 dB
01 0000
10
–24 dB
11 1011
3B
4 dB
10 0101
25
–7 dB
00 1111
0F
–26 dB
11 1010
3A
3.5 dB
10 0100
24
–7.5 dB
00 1110
0E
–28 dB
11 1001
39
3 dB
10 0011
23
0.5 dB
–8 dB
00 1101
0D
–30 dB
11 1000
38
2.5 dB
10 0010
22
–8.5 dB
00 1100
0C
–32 dB
11 0111
37
2 dB
10 0001
21
–9 dB
00 1011
0B
2 dB
–34 dB
11 0110
36
1.5 dB
10 0000
20
–9.5 dB
00 1010
0A
–36 dB
11 0101
35
1 dB
01 1111
1F
–10 dB
00 1001
09
–38 dB
0.5 dB
11 0100
34
0.5 dB
01 1110
1E
–10.5 dB
00 1000
08
–40 dB
11 0011
33
0 dB
01 1101
1D
–11 dB
00 0111
07
–42 dB
11 0010
32
–0.5 dB
01 1100
1C
–12 dB
00 0110
06
–46 dB
11 0001
31
–1 dB
01 1011
1B
–13 dB
00 0101
05
–50 dB
11 0000
30
–1.5 dB
01 1010
1A
–14 dB
00 0100
04
–54 dB
10 1111
2F
–2 dB
01 1001
19
–15 dB
00 0011
03
4 dB
–58 dB
10 1110
2E
–2.5 dB
01 1000
18
1 dB
–16 dB
00 0010
02
–62 dB
10 1101
2D
–3 dB
01 0111
17
–17 dB
00 0001
01
–66 dB
10 1100
2C
–3.5 dB
01 0110
16
–18 dB
00 0000
00
–70 dB
10 1011
2B
–4 dB
01 0101
15
–19 dB
10 1010
2A
– 4.5 dB
01 0100
14
–20 dB
32
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