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TA1284FN TENTATIVE
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1284FN
UHF / VHF TUNER IC (Low Phase Noise Oscillator)
The TA1284FN is TV tuner IC which integrate mixer / oscillator for VHF and CATV bands, mixer / oscillator for UHF band, and IF amplifier on a single chip. Supply voltage of 5 V helps lower power dissipation from the set. Compact 16-pin SSOP makes the tuner more compact.
FEATURES
l Supply voltage : 5V l Built-in mixer / oscillator for VHF and CATV bands l Built-in mixer / oscillator for UHF band l Oscillator circuits is low phase noise. l Built-in IF amplifier l Low power dissipation. Note: Weight: 0.07g (Typ.)
These devices are easily damaged by high static voltage or electric fields. In this regard, please handle with care.
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.
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BLOCK DIAGRAM
TERMINAL FUNCTION
PIN No. 1 16 2 PIN NAME FUNCTION INTERFACE
VHF Oscillator
VHF oscillator. Oscillator circuit is low phase noise.
GND
GND pin
3 4
MIX Output
Mixer output. For tuning, connect a tank circuit between pins 3 and 4.
5
IF Output
IF output. Output impedance : 75
6
VCC (MIX*IF AMPLIFIER Block)
VCC (Mixer and IF amplifier block)
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PIN No. PIN NAME FUNCTION INTERFACE
7 8
VHF-RF input. VHF input Normally, ground pin 7 to AC using a capacitor and input to pin 8.
UHF*RF input. 9 10 UHF input Either apply balanced input to pins 9 and 10 or ground pin 10 to AC and input to pin 9.
11
REG
Regulator output.
12
U / V band switch
Band changeover switch. VHF ; [L] or Open UHF ; [H] * [L] = 0 V [H] = VCC
13 14 15
VCC (OSC)
VCC pin (oscillator block) UHF oscillator. Oscillator circuit is low phase noise.
UHF Oscillator
MAXIMUM RATINGS (Ta = 25C)
CHARACTERISTIC Power Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL VCC PD Topr Tstg RATING 6.5 568 [IC only] -20~85 -55~150 UNIT V mW C C
Note:
When using the device at above Ta = 25C, decrease the power dissipation by 4.6 mW for each increase of 1C.
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OPERATING SUPPLY VOLTAGE
PIN No. 6, 13 SYMBOL VCC MIN 4.5 TYP. 5.0 MAX 5.5 UNIT V
ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS (Unless otherwise specified, VCC = 5 V, Ta = 25C)
CHARACTERISTIC Power Supply and Current For VHF Power Supply and Current For UHF Pin 1 For VHF Pin 1 For UHF Pin 3 For VHF Pin 3 For UHF Pin 4 For VHF Pin 4 For UHF Pin 5 For VHF Pin 5 For UHF Pin 7 For VHF Pin 7 For UHF Pin 8 For VHF Pin 8 For UHF Terminal Voltage (*1) Pin 9 For VHF Pin 9 For UHF Pin 10 For VHF Pin 10 For UHF Pin 11 For VH Pin 11 For UHF Pin 12 For VHF Pin 12 For UHF Pin 14 For VHF Pin 14 For UHF Pin 15 For VHF Pin 15 For UHF Pin 16 For VHF Pin 16 For UHF SYMBOL TEST CIRCUIT TEST CONDITION MIN TYP. MAX UNIT
ICC-V 1 ICC-U V1-V V1-U V3-V V3-U V4-V V4-U V5-V V5-U V7-V V7-U V8-V V8-U V9-V V9-U V10-V V10-U V11-V V11-U V12-V V12-U V14-V V14-U V15-V V15-U V16-V V16-U 1
26.0
33.5
45.0 mA

29.5 1.7 0 3.6 3.3 3.6 3.3 1.9 1.9 1.4 1.4 1.4 1.4 1.4 1.3 1.4 1.3 3.8 3.8 0 0 0.9 0 1.8 0.9 0
38.0 2.0 0 3.9 3.6 3.9 3.6 2.2 2.2 1.7 1.7 1.7 1.7 1.7 1.6 1.7 1.6 4.1 4.1 0 VCC 0 1.2 0 2.1 1.2 0
51.0 2.3 0.2 4.2 4.0 4.2 4.0 2.6 2.6 2.0 2.0 2.0 2.0 2.0 1.9 2.0 1.9 4.4 4.4 0 0.2 1.5 0.2 2.4 1.5 0.2 V
(*1) Uppe : VHF mode Lower : UHF mode
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AC CHARACTERISTICS (Unless otherwise specified, VCC = 5 V, Ta = 25C)
CHARACTERISTIC SYMBOL TES T CIRCUI T BAND TEST CONDITION(*2) fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz fRF = 91.25 MHz fRF = 217.25 MHz fRF = 471.25 MHz fRF = 765.25 MHz MIN TYP. MAX UNIT
VHF Conversion Gain (Note 1) CG 2 VHF UHF UHF VHF Noise Figure (Note 2) NF 2 VHF UHF UHF VHF IF Out Power Level (Note 3) IFp 2 VHF UHF UHF VHF Conversion Gain Shift (Note 4) CGs 2 VHF UHF UHF VHF Frequency Shift (Note 5) fB 2 VHF UHF UHF VHF Switching On Drift (Note 6) fs 2 VHF UHF UHF VHF 1% Cross Modulation (Note 7) CM 2 VHF UHF UHF VHF Inter Modulation (Note 8) IM3 2 VHF UHF UHF Phase Noise (10 kHz offset) (Note 9) PN 2 VHF VHF UHF UHF
21.0 21.0 24.0 23.0 8.5 8.5 8.5 8.5 81.0 81.5 72.0 70.5 63.0 62.5 59.5 58.0
22.0 22.0 25.5 24.5 9.0 9.5 9.0 10.5 9.5 9.5 9.5 9.5 82.0 82.0 75.0 72.0 65.0 65.0 61.0 61.0 -97.0 -99.0 -94.5 -91.5
24.0 24.5 27.0 26.5 10.0 10.5 9.5 11.5 0.5 0.6 0.6 0.8 100 100 500 300 50 50 100 100 -94.5 -96.5 -92.0 -88.0 dBc / Hz dB dBV kHz kHz dB dBm W dB dB
(*2) IF = 58.75 [ MHz]
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TEST CONDITIONS
Note 1: Note 2: Note 3: Note 4: Conversion Gain fRF input level = -30 dBmW Noise Figure Noise Figure meter used. IF Out Power Level Measure IF output level when it is maximum level. Conversion Gain Shift The Conversion gain shift is defined as a change in conversion gain when supply voltage varies from VCC = 5 to 4.5 V or from VCC = 5 to 5.5 V. Frequency Shift The frequency shift is defined as a change in oscillator frequency when the supply voltage varies from VCC = 5 to 4.5 V or from VCC = 5 to 5.5 V. Switching On Drift Measure frequency change from 2 seconds after switching on to 3 minutes. 1% Cross Modulation * fd = fp (fdRF input level = -30 dBmW) * fud = fp+12 MHz 100 kHz, 30%AM Input two signals, and increase the fudRF input level. Measure the fudRF input level when the suppression level reaches 56.5 dB. Inter Modulation * fd = fp * fud = fp+1 MHz Input the two signals above, and increase the input levels. When the IF output level is -11 dBmW, measure the suppression level. Phase Noise (10 kHz offset) Measure phase noise of 10 kHz offset.
Note 5:
Note 6: Note 7:
Note 8:
Note 9:
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TEST CIRCUIT1 DC CHARACTERISTICS
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TEST CIRCUIT2 AC CHARACTERISTICS
VHF UHF fIF
: : :
fRF = 91.25 [MHz]~217.25 [MHz] fRF = 471.25 [MHz]~765.25 [MHz] 58.75 [MHz]
LINE DIAMETER TURN DIAMETER 2.4 mm 1.4 mm NUMBER OF TURNS 7.5 T 2.5 T
L1 L2
0.3 0.3
L3 = 0.9 H5%
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PACKAGE DIMENSIONS
Weight: 0.07g (Typ.)
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