參數(shù)資料
型號(hào): CS43L22-CNZR
廠商: Cirrus Logic Inc
文件頁(yè)數(shù): 53/66頁(yè)
文件大小: 0K
描述: IC DAC W/HDPN & SPKR AMPS 40-QFN
標(biāo)準(zhǔn)包裝: 4,000
位數(shù): 24
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 40-QFN(6x6)
包裝: 帶卷 (TR)
輸出數(shù)目和類型: 2 電壓,單極
采樣率(每秒): 96k
配用: 598-1529-ND - BOARD EVAL FOR CS43L22
DS792F2
57
CS43L22
Confidential Draft
3/4/10
7.27.3
VP Reference
Sets the desired VP reference used for battery compensation.
7.28
VP Battery Level (Address 30h) (Read Only)
7.28.1
VP Voltage Level (Read Only)
Indicates the unsigned VP voltage level.
7.29
Speaker Status (Address 31h) (Read Only)
7.29.1
Speaker Current Load Status (Read Only)
Indicates whether or not any of the speaker outputs is shorted to ground.
VPREF[3:0]
Desired VP used to calculate the required attenuation on the speaker output:
(for VA = 1.8 V)
0000
1.5 V
0001
2.0 V
0010
2.5 V
0011
3.0 V
0100
3.5 V
0101
4.0 V
0110
4.5 V
0111
5.0 V
(for VA = 2.5 V)
1000
1.5 V
1001
2.0 V
1010
2.5 V
1011
3.0 V
1100
3.5 V
1101
4.0 V
1110
4.5 V
1111
5.0 V
Application:
7
6
5
432
10
VPLVL7
VPLVL6
VPLVL5
VPLVL4
VPLVL3
VPLVL2
VPLVL1
VPLVL0
VPLVL[7:0]
VP Voltage
...
0101 1110
3.0 V (for VA = 2.0 V); apply formula using actual VA voltage to calculate VP voltage.
...
0111 0010
3.7 V (for VA = 2.0 V); apply formula using actual VA voltage to calculate VP voltage.
...
Formula:
VP Voltage = (Binary representation of VPLVL[7:0]) * VA / 63.3
7
6
5
432
10
Reserved
SPKASHRT
SPKBSHRT
SPKR/HP
Reserved
SPKxSHRT
Speaker Output Load
0
No overload detected
1
Overload detected
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