參數(shù)資料
型號: CS43L22-CNZR
廠商: Cirrus Logic Inc
文件頁數(shù): 6/66頁
文件大小: 0K
描述: IC DAC W/HDPN & SPKR AMPS 40-QFN
標(biāo)準包裝: 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
14
DS792F2
CS43L22
Confidential Draft
3/4/10
6.
The PWM driver should be used in captive speaker systems only.
7.
Optimal PWM performance is achieved when MCLK > 12 MHz.
HEADPHONE OUTPUT POWER CHARACTERISTICS
Test conditions (unless otherwise specified): Input test signal is a full-scale 997 Hz sine wave; Sample Frequency = 48 kHz;
Measurement Bandwidth is 20 Hz to 20 kHz; Test load RL = 16 Ω, CL = 10 pF (see Figure 2); “Required Initialization Settings”
on page 32 written on power up.
8.
VHP settings lower than VA reduces the headroom of the headphone amplifier. As a result, the DAC
may not achieve the full THD+N performance at full-scale output voltage and power.
MOSFET On Resistance
RDS(ON)
VP = 2.5V, Id = 0.5 A
-
760
-
m
Ω
Efficiency
η
VP = 5.0 V, PO = 2 x 0.8 W, RL =
8
Ω
-81
-
%
Output Operating Peak Current
IPC
--
1.5
A
VP Input Current During Reset
IVP
RESET, pin 32, is held low
-0.8
5.0
A
Parameters
VA = 2.5V
Min
Typ
Max
VA = 1.8V
Min
Typ
Max
Unit
AOUTx Power Into RL = 16 Ω
HP_GAIN[2:0]
Analog
Gain (G)
VHP
000
0.3959
1.8 V
-
14
-
7
-
mWrms
2.5 V
-
14
-
7
-
mWrms
001
0.4571
1.8 V
-
19
-
10
-
mWrms
2.5 V
-
19
-
10
-
mWrms
010
0.5111
1.8 V
-
23
-
12
-
mWrms
2.5 V
-
23
-
12
-
mWrms
011 (default)
0.6047
1.8 V
-
17
-
mWrms
2.5 V
-
32
-
17
-
mWrms
100
0.7099
1.8 V
-
23
-
mWrms
2.5 V
-
44
-
23
-
mWrms
101
0.8399
1.8 V
mWrms
2.5 V
-
32
-
mWrms
110
1.0000
1.8 V
mWrms
2.5 V
mWrms
111
1.1430
1.8 V
mWrms
2.5 V
mWrms
Parameters (Note 7)
Symbol
Conditions
Min
Typ
Max
Units
AOUTx
AGND
R
L
C
L
0.022
μF
51
Ω
Figure 2. Headphone Output Test Load
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