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TL852CDRG4 PDF预览

TL852CDRG4

更新时间： 2024-09-18 12:02:19
品牌 Logo 应用领域
德州仪器 - TI 电信集成电路电信电路光电二极管接收机
页数 文件大小 规格书
12页 586K
描述
SONAR RANGING RECEIVER

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TL852CDRG4 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：GREEN, PLASTIC, MS-012AC, SOIC-16
针数：16Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：5.16
Is Samacsys：NJESD-30 代码：R-PDSO-G16
JESD-609代码：e4长度：9.9 mm
湿度敏感等级：1功能数量：1
端子数量：16最高工作温度：40 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260电源：5 V
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Other Telecom ICs最大压摆率：0.045 mA
标称供电电压：5 V表面贴装：YES
技术：BIPOLAR电信集成电路类型：TELECOM CIRCUIT
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

TL852CDRG4 数据手册

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SLSS003 − SEPTEMBER 1983 − REVISED MARCH 1988  
N PACKAGE  
(TOP VIEW)  
D
D
D
Designed for Use With the TL851 in Sonar  
Ranging Modules Like the SN28827  
Digitally Controlled Variable-Gain  
Variable-Bandwidth Amplifier  
GND  
GCD  
GCA  
GCB  
GCC  
NC  
G1IN  
XIN  
GADJ  
LC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
Operational Frequency Range of 20 kHz  
to 90 kHz  
D
TTL-Compatible  
V
CC  
G1OUT  
D
Operates From Power Sources of 4.5 V  
to 6.8 V  
NC  
REC  
G2IN  
BIAS  
D
D
Interfaces to Electrostatic or Piezoelectric  
Transducers  
NC − No internal connection  
Overall Gain Adjustable With One External  
Resistor  
description  
The TL852 is an economical sonar ranging receiver integrated circuit for use with the TL851 control integrated  
circuit. A minimum of external components is required for operation, and this amplifier easily interfaces to  
Polaroid’s 50-kHz electrostatic transducer. An external 68-kΩ 5% resistor from BIAS to GND provides the  
internal biasing reference. Amplifier gain can be set with a resistor from G1IN to GADJ. Required amplifier gain  
will vary for different applications. Using the detect-level measurement circuit of Figure 1, a nominal  
peak-to-peak value of 230 mV input during gain step 2 is recommended for most applications. For reliable  
operation, a level no lower than 50 mV should be used. The recommended detect level of 230 mV can be  
obtained for most amplifiers with an R1 value between 5 kΩ and 20 kΩ  
Digital control of amplifier gain is provided with gain control inputs GCA, GCB, GCC, and GCD. These inputs  
must be driven synchronously (all inputs stable within 0.1 µs) to avoid false receive output signals due to invalid  
logic counts. This can be done easily with the TL851 control integrated circuit. A plot showing relative gain for  
the various gain steps versus time can be seen in Figure 2. To dampen ringing of the 50-kHz electrostatic  
transducer, a 5-kΩ resistor from G1IN to XIN is recommended.  
An external parallel combination of inductance and capacitance between LC and V  
provides an amplifier with  
CC  
an externally controlled gain and Q. This not only allows control of gain to compensate for attenuation of signal  
with distance, but also maximizes noise and sidelobe rejection. Care must be taken to accurately tune the L-C  
combination at operating frequency or gain and Q will be greatly reduced at higher gain steps.  
AC coupling between stages of the amplifier is accomplished with a 0.01-mF capacitor for proper biasing.  
The receive output is normally held at a low level by an internal 1-µA current source. When an input of sufficient  
amplitude is received, the output is driven alternately by the 1-µA discharge current and a 50-µA charging  
current. A 1000-pF capacitor is required from REC to GND to integrate the received signal so that one or two  
noise pulses will not be recognized.  
XIN provides clamping for the transformer secondary when used for transducer transmit drive as shown in  
Figure 4 of the SN28827 data sheet.  
The TL852 is characterized for operation from 0°C to 40°C.  
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Copyright 1988, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...12

中文翻译

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TL852CDRG4 替代型号

型号 品牌 替代类型 描述 数据表
TL852CDR TI

完全替代

 SONAR RANGING RECEIVER

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