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LM1036M PDF预览

LM1036M

更新时间： 2024-02-14 00:26:32
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
14页 752K
描述
Dual DC Operated Tone/Volume/Balance Circuit

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LM1036M 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP,针数：20
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.11
信道分离：75 dB商用集成电路类型：TONE CONTROL CIRCUIT
谐波失真：0.06%JESD-30 代码：R-PDSO-G20
频带数量：2信道数量：2
功能数量：1端子数量：20
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
最大供电电压 (Vsup)：16 V最小供电电压 (Vsup)：9 V
表面贴装：YES技术：BIPOLAR
温度等级：COMMERCIAL端子形式：GULL WING
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

LM1036M 数据手册

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LOUDNESS COMPENSATION  
Application Notes  
A simple loudness compensation may be effected by applying  
a DC control voltage to pin 7. This operates on the tone control  
stages to produce an additional boost limited by the maximum  
boost defined by Cb and Ct. There is no loudness compen-  
sation when pin 7 is connected to pin 17. Pin 7 can be  
connected to pin 12 to give the loudness compensated vol-  
ume characteristic as illustrated without the addition of further  
external components. (Tone settings are for flat response,  
Cb and Ct as given in Application Circuit.) Modification to the  
loudness characteristic is possible by changing the capacitors  
Cb and Ct for a different basic response or, by a resistor net-  
work between pins 7 and 12 for a different threshold and  
slope.  
TONE RESPONSE  
The maximum boost and cut can be optimized for individual  
applications by selection of the appropriate values of Ct (tre-  
ble) and Cb (bass).  
The tone responses are defined by the relationships:  
SIGNAL HANDLING  
The volume control function of the LM1036 is carried out in  
two stages, controlled by the DC voltage on pin 12, to improve  
signal handling capability and provide a reduction of output  
noise level at reduced gain. The first stage is before the tone  
control processing and provides an initial 15 dB of gain re-  
duction, so ensuring that the tone sections are not overdriven  
by large input levels when operating with a low volume setting.  
Any combination of tone and volume settings may be used  
provided the output level does not exceed 1 Vrms, VCC=12V  
(0.8 Vrms, VCC=9V). At reduced gain (<−6 dB)the input stage  
will overload if the input level exceeds 1.6 Vrms, VCC=12V  
(1.1 Vrms, VCC=9V). As there is volume control on the input  
stages, the inputs may be operated with a lower overload  
margin than would otherwise be acceptable, allowing a pos-  
sible improvement in signal to noise ratio.  
Where ab=at=0 for maximum bass and treble boost respec-  
tively and ab=at=1 for maximum cut.  
For the values of Cb and Ct of 0.39 μF and 0.01 μF as shown  
in the Application Circuit, 15 dB of boost or cut is obtained at  
40 Hz and 16 kHz.  
ZENER VOLTAGE  
A zener voltage (pin 17=5.4V) is provided which may be used  
to bias the control potentiometers. Setting a DC level of one  
half of the zener voltage on the control inputs, pins 4, 9, and  
14, results in the balanced gain and flat response condition.  
Typical spread on the zener voltage is ±100 mV and this must  
be taken into account if control signals are used which are not  
referenced to the zener voltage. If this is the case, then they  
will need to be derived with similar accuracy.  
Application Circuit  
514203  
5
www.national.com  
1...3456789...14

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