CXAR4197是一个单片集成电路，提供精确的直流音量控制，以及一个立体声桥接音频功率放大器，能够以小于10%（1.0%）的THD+N将2.6W（1.8W）的功率输出到4W。CXAR4197的音量控制衰减器范围为20dB（DC_Vol=0V）到-80dB（DC_Vol=3.54V），32步。内部增益设置的优点是可以减少元件和PCB面积。在CXAR4197中集成了depop电路和热关机保护电路，可在通电或关机模式操作期间减少持久性有机污染物和咔哒声。它还改善了电源关闭的弹出噪声，并保护芯片不受过温和短路故障的破坏。为了简化音频系统设计，CXAR4197将扬声器驱动的立体声桥接负载（BTL）模式和耳机驱动的立体声单端（SE）模式组合到一个芯片中，在该芯片中，SE/BTL输入控制引脚信号可以轻松地切换这两种模式。
·低工作电流，9mA
·改进的Depop电路消除了输出端的开关瞬态
·高PSRR
·32步容量可通过带滞后的直流电压调节
·在5V，BTL模式下，每个通道输出功率为2.6W，进入4W负载
·允许两种输出模式，由SE/BTL引脚选择BTL和SE模式
·关机模式下的低电流消耗（1毫安）
·短路保护
·热关机保护及过流保护电路·最大输出摆位夹紧功能
·输出+信号和输入信号是同相的
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[ CXAR4197 ]"
目录
7.相关产品
产品概述 返回TOP
CXAR4197 is a monolithic integrated circuit, which provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (1.8W) into 4W with less than 10% (1.0%) THD+N. The attenuator range of the volume control in CXAR4197 is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in CXAR4197, that reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, CXAR4197combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal.
产品特点 返回TOP
· Low Operating Current with 9mA
· Improved Depop Circuitry to Eliminate Turn-on and Turn-off Transients in Outputs
· High PSRR
· 32 Steps Volume Adjustable by DC Voltage with Hysteresis
· 2.6W per Channel Output Power into 4W Load at 5V, BTL Mode
· Two Output Modes Allowable with BTL and SE Modes Selected by SE/BTL pin
· Low Current Consumption in Shutdown Mode (1mA)
· Short-Circuit Protection
· Thermal Shutdown Protection and Over-Current Protection Circuitry · Maximum Output Swing Clamping Function
· The OUT+ Signal and the IN- Signal are Outphase
· SOP-16P Packages with Thermal Pad Package
· Lead Free and Green Devices Available (RoHS Compliant)
应用范围 返回TOP
· NBs
· LCD Monitor or TVs
技术规格书（产品PDF) 返回TOP
需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！
产品封装图 返回TOP
电路原理图 返回TOP
相关芯片选择指南 返回TOP 更多同类产品......
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Audio Products > Speaker Amplifier |
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|
Part_No |
Package |
Cla -ss |
VDD Voltage (V) |
IDD, Supply Current (mA) |
TSTAR -UP (uS) |
Out. Pow. RL =4(W) |
Output Power RL=8W (W) |
Head- phon Mode Output Powe RL=32W(mW) |
Total Harm. Dist. Plus Noise (%) |
Pow. Sup. Rej. Ratio dB |
Output Noise (uV) |
Sign. to nois Ratio dB |
Output Offset Voltage (mV) |
Digit. Input |
Head phone |
AGC Pow. limit |
Mute |
|
|
min |
max |
|||||||||||||||||
|
SOP-8 |
AB |
3 |
5.5 |
1 |
0.4 |
1.5 |
0.9 |
NA |
0.15 |
74 |
28 |
NA |
20 |
N |
N |
N |
N |
|
|
MSOP8/P/ TDFN3x3-8 |
AB |
2 |
5.5 |
3 |
0.1 |
2.1 |
1.3 |
NA |
0.05 |
80 |
15 |
105 |
5 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A TDFN3x3-8 DFN3x3-8 |
D |
2 |
5.5 |
2 |
NA |
2.45 |
1.45 |
NA |
0.1 |
80 |
100 |
90 |
25 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A |
D |
2 |
5.5 |
2 |
NA |
2.45 |
1.45 |
NA |
0.1 |
80 |
100 |
90 |
25 |
N |
N |
N |
N |
|
|
WLCSP1.5 x1.5-9A TDFN3x3-8 |
D |
2 |
5.5 |
3 |
NA |
2.2 |
1.3 |
NA |
0.05 |
70 |
100 |
89 |
20 |
N |
N |
N |
N |
|
|
WLCSP1.2 x1.2-9 TDFN3x3-8 |
D |
2 |
5.5 |
2 |
0 |
2.45 |
1.3 |
NA |
0.1 |
75 |
55 |
90 |
1 |
N |
N |
N |
N |
|
|
WLCSP1.5 x2-12 TQFN4x4-16 |
G |
3 |
5.2 |
4 |
0.6 |
3.6 |
2 |
N/A |
0.06 |
70 |
49 |
97.5 |
2 |
N |
N |
N |
N |
|
|
TSSOP24P TSSOP20P TQFN3x2-16 |
AB |
3 |
5.5 |
6 |
NA |
1.7 |
1.1 |
90 |
0.04 |
85 |
15 |
105 |
5 |
N |
Y |
N |
N |
|
|
TQFN4x4-16 TQFN3x3-16 |
AB |
3 |
5.5 |
6 |
0.7 |
2 |
1.3 |
52 |
0.06 |
61 |
22 |
93 |
10 |
N |
Y |
N |
N |
|
|
TQFN5 x5-20A |
AB |
2 |
5.5 |
6 |
0.1 |
2.1 |
1.3 |
NA |
0.05 |
80 |
15 |
105 |
5 |
N |
N |
N |
N |
|
|
TQFN4x4-28 |
AB |
5 |
5.5 |
18 |
NA |
1.9 |
1.2 |
120 |
0.15 |
70 |
80 |
90 |
10 |
N |
Y |
N |
N |
|
|
TSSOP-28P TQFN5x5-28 |
AB |
5 |
5.5 |
18 |
NA |
1.9 |
1.2 |
120 |
0.15 |
70 |
80 |
90 |
10 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32A |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32 |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
TQFN5 x5-32A |
AB |
5 |
5.5 |
9 |
0 |
1.9 |
1.3 |
120 |
0.07 |
75 |
22 |
100 |
5 |
N |
Y |
N |
N |
|
|
SOP-16P |
AB |
5 |
5.5 |
9 |
1 |
1.8 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
5 |
5.5 |
9 |
NA |
2 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
5 |
5.5 |
9 |
NA |
2 |
1.3 |
95 |
0.07 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
DIP16/A |
AB |
3 |
5.5 |
9 |
1.6 |
2 |
1.3 |
95 |
0.09 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
TSSOP-24P |
AB |
5 |
5.5 |
14 |
NA |
1.9 |
1.1 |
90 |
0.05 |
60 |
20 |
95 |
5 |
N |
Y |
N |
N |
|
|
TQFN3x3-16 |
D |
2 |
5.5 |
3 |
0 |
2.3 |
1.34 |
NA |
0.15 |
74 |
100 |
85 |
5 |
N |
N |
N |
N |
|
|
SOP-16P |
D |
3 |
5.5 |
8 |
1.6 |
2.4 |
1.4 |
NA |
0.1 |
55 |
75 |
90 |
20 |
N |
N |
N |
Y |
|
|
SOP-24 DIP-24 QFN4x4-20A |
D |
3 |
5.5 |
7 |
1.6 |
2.2 |
1.3 |
60 |
0.1 |
70 |
75 |
82.5 |
5 |
N |
Y |
A |
Y |
|
|
SOP-16 QDN4x4-20A |
D |
3 |
5.5 |
8 |
1.6 |
2.4 |
1.1 |
NA |
0.1 |
70 |
75 |
85 |
10 |
N |
N |
A |
Y |
|
|
SSOP24/ QFN4x4-20A |
D |
3 |
5.8 |
8 |
1.4 |
2.4 |
1.7 |
70 |
0.1 |
80 |
50 |
92 |
5 |
N |
Y |
A |
Y |
|
|
SSOP24/P SOP-18 QFN4x4-20A |
D |
3 |
5.5 |
5 |
1.2 |
2.3 |
1.3 |
NA |
0.1 |
70 |
80 |
85 |
20 |
N |
N |
A |
Y |
|
|
SSOP-24/P |
D |
3 |
5.5 |
5 |
1.2 |
2.25 |
1.3 |
68 |
0.06 |
60 |
80 |
78 |
20 |
N |
Y |
A |
Y |
|
|
TQFN5x5-32 |
D |
8 |
17 |
18 |
1 |
NA |
12 |
NA |
0.07 |
65 |
230 |
NA |
20 |
N |
N |
N |
Y |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
7 |
NA |
0.1 |
NA |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
8 |
NA |
0.1 |
NA |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
12 |
0.1 |
NA |
65 |
120 |
95 |
15 |
N |
N |
P |
N |
|
|
QFN5.2 x6.2-32 |
D |
8 |
17 |
18 |
1 |
NA |
14 |
NA |
0.05 |
65 |
250 |
NA |
20 |
N |
N |
N |
Y |
|
|
TSSOP28P QFN4x4-28 |
D |
8 |
26 |
20 |
0 |
NA |
15 |
NA |
0.1 |
65 |
160 |
95 |
15 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28B |
D |
5 |
22 |
17 |
0 |
NA |
15 |
NA |
0.05 |
65 |
130 |
95 |
5 |
N |
N |
P |
N |
|
|
TSSOP28P QFN4x4-28B |
D |
5 |
26 |
17 |
0 |
NA |
17 |
NA |
0.05 |
70 |
120 |
95 |
5 |
N |
N |
P |
N |
|
|
TQFN7 x7-48/P |
D |
9 |
14 |
20 |
NA |
NA |
7.5 |
NA |
0.2 |
85 |
250 |
85 |
20 |
N |
N |
N |
N |
|
|
SOP8/P MSOP8P |
AB |
3 |
5.5 |
7 |
0.4 |
2.3 |
1.3 |
NA |
0.04 |
60 |
28 |
NA |
NA |
N |
N |
N |
N |
|
