參數(shù)資料
型號: MAX97003EWP+T
廠商: Maxim Integrated Products
文件頁數(shù): 28/48頁
文件大?。?/td> 0K
描述: IC AUDIO SUBSYSTEM LN 20WLP
標(biāo)準(zhǔn)包裝: 2,500
類型: D 類;H 類
輸出類型: 1-通道(單聲道)或 2-通道(立體聲)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 1W x 2 @ 8 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點(diǎn): 消除爆音,差分輸入,關(guān)閉
安裝類型: *
供應(yīng)商設(shè)備封裝: *
封裝/外殼: *
包裝: *
Maxim Integrated Products 34
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
Table 6. Dynamic Range Control Registers
Dynamic Range Control
The DRC attenuates high-level signals without affecting low-level signals. Attenuation is achieved by automatically
modifying the speaker volume as appropriate. When the DRC is enabled, the overall volume can be increased without
clipping the high-level signals. To operate the DRC, select a compression threshold, compression ratio, attack time
constant, and release time.
REGISTER
BIT
NAME
DESCRIPTION
0x0A
7
DRCEN
DRC Enable and Compression Ratio
000 = 1:1 (disabled)
001 = 1.34:1
010 = 2:1
011 = 4:1
100 – 111 = J:1
6
5
4
DRCATK
DRC Attack Time Constant. Defines the time constant used during attack.
00 = 500Fs
01 = 1ms
10 = 10ms
11 = 50ms
3
2
DRCRLS
DRC Release Time. Defines the release rate per step.
000 = 800ms
001 = 400ms
010 = 150ms
011 = 75ms
100 = 50ms
101–111 = 25ms
1
0
0x0B
4
DRCTH
Compression Threshold Level. Specifies the minimum input signal level for which
compression is applied.
VALUE
LEVEL (VRMS)
VALUE
LEVEL (VRMS)
3
0x00
Reserved
0x10
0.354
0x01
0.839
0x11
0.334
0x02
0.792
0x12
0.315
0x03
0.748
0x13
0.298
2
0x04
0.706
0x14
0.281
0x05
0.667
0x15
0.265
0x06
0.629
0x16
0.251
0x07
0.594
0x17
0.237
1
0x08
0.561
0x18
0.223
0x09
0.529
0x19
0.211
0x0A
0.500
0x1A–0x1F
0.199
0
0x0B
0.472
0x0C
0.445
0x0D
0.421
0x0E
0.397
0x0F
0.375
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