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Product InformationFeatures
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-k 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 us) 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-k An external parallel combination of inductance and capacitance between LC and VCC provides an amplifier with 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-uA current source. When an input of sufficient amplitude is received, the output is driven alternately by the 1-uA discharge current and a 50-uA 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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| Price | Packaging | CAD Design Tools | Samples | |||||
| Device | Status | Price | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Symbols | Footprints | Samples |
| TL852CDR | ACTIVE | 3.00 | 100u | SOIC (D) | 16 | View | 2500 | LARGE T&R | Contact TI Distributor or Sales Office | ||
| TL852CDRG4 | ACTIVE | 3.00 | 100u | SOIC (D) | 16 | View | 2500 | LARGE T&R | Contact TI Distributor or Sales Office | ||
| TL852CN | ACTIVE | 3.25 | 100u | PDIP (N) | 16 | View | 25 | TUBE | Contact TI Distributor or Sales Office | ||
| TL852CNE4 | ACTIVE | 3.25 | 100u | PDIP (N) | 16 | View | 25 | TUBE | Contact TI Distributor or Sales Office | ||
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
| TI Inventory Status | Reported Distributor Inventory | |||||
| TL852CDR | As of 9:19 AM GMT, 03 Jul 2009 | As of 9:19 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 4 Weeks | Americas | DigiKey | 822 | |||
| Rochester Electronics | >1k | |||||
| TL852CDRG4 | As of 9:19 AM GMT, 03 Jul 2009 | As of 9:19 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 4 Weeks | Americas | DigiKey | Available | |||
| TL852CN | As of 9:19 AM GMT, 03 Jul 2009 | As of 9:19 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 4 Weeks | Americas | Arrow | 144 | |||
| DigiKey | 95 | |||||
| Rochester Electronics | >1k | |||||
| Europe | Arrow Southern Europe | 20 | ||||
| TL852CNE4 | As of 9:19 AM GMT, 03 Jul 2009 | As of 9:19 AM GMT, 03 Jul 2009 | ||||
| Lead Time | Region | Company | In Stock | Purchase | ||
| 4 Weeks | Americas | DigiKey | Available | |||
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
TL852CDR  | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| TL852CDRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | View | View |
| TL852CN | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
| TL852CNE4 | Pb-Free (RoHS) | CU NIPDAU | N/A for Pkg Type | View | View |
* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.
If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.
Most useful technical documents for TL852 
| Customers Who Evaluated This Product Also Evaluated... | |||
| Part # | Name | Product Family | Comments |
| TL851 | Sonar Ranging Control | TI customers also evaluated this product. | |
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