 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| TA8721ASN TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC TA8721ASN DUAL SIF SYSTEM FOR TV FEATURES l Two channel SIF circuit (The 2ch demodulation circuit can be configured in combination with the TA8712N or TA8796N.) l Three stage limiter amplifier l Quadrature type detection circuit l No-adjustment type FM detector circuit by ceramic discriminator BLOCK DIAGRAM Weight : 0.71g (Typ.) 000707EBA1 * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc.. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 2001-02-06 1/9 TA8721ASN TERMINAL FUNCTION PIN No. PIN NAME FUNCTION INTERFACE CIRCUIT 1 Limiter Input (1) A sound carrier is input from SAW filter. 2 5 De-Emphasis (1) Sound Output (1) The De-Emphasis time constant is defined by external capacitor. This is an FM detector circuit output terminal. 3 4 Limiter Output (1) SoundDetection(1) This is a connection terminal of sound detection coil. This will be of no-adjustment type by using ceramic discriminator. A sound muting will be performed by connecting pin 4 to GND. 6 SIF GND Connect a bypass capacitor between this pin and SIF VCC of pin 12. 2001-02-06 2/9 TA8721ASN PIN No. PIN NAME FUNCTION INTERFACE CIRCUIT 7 10 Sound Output (2) De-Emphasis (2) This is an FM detector circuit output terminal. The De-Emphasis time constant is defined by external capacitor. 8 9 Sound Detection (2) Limiter Output (2) This is a connection terminal of sound detection coil. This will be of no-adjustment type by means of ceramic discriminator. A sound muting will be performed by connecting pin 8 to GND. 11 Limiter Input (2) A sound carrier is input from the SAW filter. 12 SIF VCC Connect a bypass capacitor between this pin and SIF GND of pin 6. 2001-02-06 3/9 TA8721ASN MAXIMUM RATINGS (Ta=25C) CHARACTERISTIC Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL VCC PD (Note) Topr Tstg RATING 15 890 -20~75 -55~150 UNIT V mW C C Note: When using the device at above Ta=25C, decrease the power dissipation by 7.14mW for each increase of 1C. RECOMMENDED SUPPLY VOLTAGE PIN No. 12 PIN NAME VCC MIN. 8.1 TYP. 9.0 MAX. 9.9 UNIT V ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS (Unless otherwise specified VCC=9V, Ta=25C) CHARACTERISTIC Supply Voltage SYMBOL ICC V1 V2 V3 V4 Terminal Voltage V5 V7 V8 V9 V10 V11 1 TEST CIRCUIT 1 TEST CONDITION MIN. 13 2.7 4.1 2.7 2.3 3.5 3.5 2.3 2.7 4.1 2.7 TYP. 18 3.0 5.1 3.7 2.9 4.5 4.5 2.9 3.7 5.1 3.0 MAX. 23 3.3 6.1 4.7 3.6 5.5 5.5 3.6 4.7 6.1 3.3 V UNIT mA 2001-02-06 4/9 TA8721ASN AC CHARACTERISTICS (When using the specified coil unless otherwise specified, VCC=9V, Ta=25C) CHARACTERISTIC Audio Frequency Output Level (Note 1) Audio Frequency Distortion Rate Limiting Sensitivity (Note 3) AMR Audio Frequency Bandwidth (Note 4) (Note 2) SYMBOL VOD1 VOD2 THD1 THD2 VLIM1 VLIM2 AMR1 AMR2 AFBW1 (Note 5) AFBW2 S / N1 S / N Ratio (Note 6) S / N2 CR1 2 CR2 Ri1, Ri2 2 2 TEST CIRCUIT 2 2 2 2 2 TEST CONDITION fo=4.5MHz, Vi=100dBV fo=4.724MHz, Vi=100dBV fo=4.5MHz fo=4.724MHz When output VOD1 is -3dB. When output VOD2 is -3dB. fo=4.5MHz, AM=30% fo=4.724MHz, AM=30% -3dB bandwidth -3dB bandwidth fo=4.5MHz, CW against FM 25kHz / dev fo=4.724MHz, CW against FM 25kHz / dev SIF1 fo=4.5MHz, fm=400Hz SIF2 fo=4.724MHz, CW SIF1 fo=4.5MHz, CW SIF2 fo=4.724MHz, fm=400Hz MIN. 350 350 40 40 70 70 60 60 60 60 0.75 TYP. 500 500 0.2 0.2 50 50 1.0 MAX. 700 700 1.0 1.0 50 50 dB dB 1.25 k UNIT mVrms % dBV dB kHz Crosstalk Between Sound Outputs (Note 7) Limiter Input Resistance (Note 8) TEST CONDITION Note 1: Audio Frequency Output Level Limiter input VOD1 : fo=4.5MHz, 100dBV, fm=400Hz, 100% (25kHz / dev) FM modulation VOD2 : fo=4.724MHz, 100dBV, fm=400Hz, 100% (25kHz / dev) FM modulation After the above input, measure the output level of sound output. Audio Frequency Distortion Rate Measure the distortion rate of sound output by distortion meter under the condition of Note 1. Limiting Sensitivity Limiter input VLIM1 : fo=4.5MHz, variable level, fm=400Hz, 100% (25kHz / dev) FM modulation VLIM2 : fo=4.724MHz, variable level, fm=400Hz, 100% (25kHz / dev) FM modulation After the above input, measure the output level of sound output. Measure the input level of Note 1 output level at -3dB. Note 2: Note 3: 2001-02-06 5/9 TA8721ASN Note 4: AMR Limiter input AMR1 : fo=4.5MHz, 100dBV, fm=400Hz, 30% AM modulation AMR2 : fo=4.724MHz, 100dBV, fm=400Hz, 30% AM modulation After the above input, measure the output level of sound output. (AMout) Calculate the ratio of the output level of Note 1. AMR = 20log AMout VOD Note 5: Note 6: Audio Frequency Bandwidth Limiter input AFBW1 : fo variable (center 4.5MHz), 100dBV, fm=400Hz, 100% (25kHz / dev) FM modulation AFBW2 : fo variable (center 4.724MHz), 100dBV, fm=400Hz, 100% (25kHz / dev) FM modulation After the above input, measure the output level of sound output. Calculate the frequency width when the output level of Note 1 becomes -3dB by changing the fo frequency high and low. S / N Ratio Limiter input S / N (1) : fo=4.5MHz, 100dBV CW S / N (2) : fo=4.724MHz, 100dBV CW After the above input, measure the output level of sound output (S / N out). Calculate the ratio of the output level of Note 1. S / N = 20log VOD S / N out Note 7: Cross Talk between sound outputs Limiter input SIF1 fo=4.5MHz, 100dBV, fm=400Hz CR1: SIF2 fo=4.724MHz, 100dBV, CW SIF1 fo=4.5MHz, 100dBV, CW CR2: SIF2 fo=4.724MHz, 100dBV, fm=400Hz After the above input, measure the output leakage level of sound output. CR1 (2) = 20log SIF 1 (2) SIF 2 (1) Note 8: Limiter input resitance Measure the resistance of limiter input terminal by impedance analyzer. 2001-02-06 6/9 TA8721ASN TEST CIRCUIT 1 DC characteristics TEST CIRCUIT 2 AC characteristics 2001-02-06 7/9 TA8721ASN APPLICATION CIRCUIT TA8721ASN TA8712N /TA8796N 2001-02-06 8/9 TA8721ASN PACKAGE DIMENSIONS SSIP12-P-1.78 Unit: mm Weight : 0.71g (Typ.) 2001-02-06 9/9 |
Price & Availability of TA8721ASN01
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |