TK14588 TOKO, TK14588 Datasheet
TK14588
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TK14588 Summary of contents
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... High Speed Data Comparator (~2 Mbps) Very Small Package (TSSOP-16) DESCRIPTION The TK14588V is a standard function general purpose IF IC capable of operating MHz. The TK14588V contains a high-speed data comparator for base band processing. The TK14588V has a unique function that allows establishing the demodulation characteristics by changing the external RC time constant, and not changing the phase shifter constant ...
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... TK14588 ABSOLUTE MAXIMUM RATINGS Supply Voltage ........................................................... 6 V Operating Voltage Range .............................. 2.3 to 5.5 V Power Dissipation (Note 1) ................................ 160 mW TK14588V ELECTRICAL CHARACTERISTICS Test conditions 10.7 MHz kHz, Modulation = 50 kHz ...
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... AM OUT (30% mod COMP INPUT DET OUTPUT 0.01 µ AMP COMP 0.01 µF 4.7 µF COMP V CC COMP OUT RSSI OUTPUT VOLTAGE vs. INPUT VOLTAGE 2.0 1.6 1.2 0.8 0.4 0.0 -120 -100 -80 -60 -40 - (dBm) TK14588 V CC 5.5 V 3 Page 3 ...
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... TK14588 TYPICAL PERFORMANCE CHARACTERISTICS DETUNE CHARACTERISTICS -10 -20 V OUT -30 -40 -50 THD -60 10.3 10.5 10 (MHz) SUPPLY CURRENT, OUTPUT VOLTAGE, TOTAL HARMONIC DISTORTION vs. SUPPLY VOLTAGE 300 I CC 260 220 V OUT 180 140 THD 100 (V) SUPPLY VOLTAGE, OUTPUT VOLTAGE, TOTAL HARMONIC DISTORTION vs. TEMPERATURE ...
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... RSSI OUTPUT VOLTAGE vs. TEMPERATURE 2.0 1 dBm 1.6 1 -15 dBm 1 -30 dBm 1.0 -40 - (Fall) OUT (1V/div ns/div RSSI OUTPUT VOLTAGE vs. INPUT VOLTAGE 2.0 1.6 1.2 TEMP (deg) - 0.4 0.0 -120 -100 -80 -60 -40 - (dBm) TK14588 80 100 0 20 Page 5 ...
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... TK14588 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) S CURVE 3 9.9 10.3 10 (MHz) OUTPUT VOLTAGE vs. MODULATING FREQUENCY 208 mVrms 330 1000 - - 100 300 MODULATING FREQUENCY fm (kHz) OUTPUT VOLTAGE vs. MODULATING FREQUENCY 35.2 mVrms 330 pF ...
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... RSSI OUTPUT RSSI OUTPUT -10 dBm in -40 dBm in -70 dBm in (0.5V/div) SG GATE PULSE (1V/div) RSSI OUTPUT -10 dBm in -40 dBm in -70 dBm in (0.5V/div) SG GATE PULSE (1V/div) RSSI OUTPUT -10 dBm in -40 dBm in -70 dBm in (0.5V/div) SG GATE PULSE (1V/div) TK14588 0.1 ms/div 20 µs/div 20 µs/div Page 7 ...
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... TK14588 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) RSSI Output Voltage Transient Response (Power Save ON/OFF) IF INPUT VOLTAGE = -10, -40, -70 dBm C = 0.01 F 0.2 ms/div C = 0.001 F 20 µs/div C = 0.0001 F 20 µs/div Page unless otherwise specified RSSI OUTPUT POWER SAVE (1V/div) RSSI OUTPUT ...
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... IF INPUT VOLTAGE = -10, -40, -70 dBm 0.001 0.0001 F January 2000 TOKO, Inc unless otherwise specified RSSI OUTPUT 0.5 ms/div 0.5 ms/div 0.5 ms/div TK14588 V CC (1V/div) RSSI OUTPUT -10 dBm in -40 dBm in -70 dBm in (0.5V/div (1V/div) RSSI OUTPUT -10 dBm in -40 dBm in -70 dBm in (0 ...
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... TK14588 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) Detector Output Voltage Transient Response (Power Save ON/OFF,Supply Voltage ON) IF INPUT VOLTAGE = -40 dBm, No input POWER SAVE ON/OFF 2 ms/div SUPPLY VOLTAGE ON 2 ms/div Page unless otherwise specified. A POWER SAVE (1V/div) DET OUTPUT -40 dBm in, No input (0 ...
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... TK14588 ...
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... TK14588 PIN FUNCTION DESCRIPTION Page 12 ...
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... Pin 14 to GND to increase the operating current. The increased operating current by an external resistor is calculated as follows (see Figure 1B): The increased operating current I 330 FIGURE 1A January 2000 TOKO, Inc. ( AMP COMP 100 k IF OUTPUT FIGURE 1B TK14588 Page 13 ...
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... TK14588 CIRCUIT DESCRIPTION (CONT.) The RSSI output is a current output. It converts to a voltage by an external resistor between Pin 15 and GND. The time constant of the RSSI output is determined by the product of the external converting resistance and parallel capacitance. When the time constant is longer, the RSSI output is less likely to be influenced by a disturbance or the component of amplitude modulation, but the RSSI output response is slower ...
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... The following figures show examples of the phase shifter resonance circuit January 2000 TOKO, Inc FIGURE ceramic discriminator FIGURE 5 - EXAMPLES OF PHASE SHIFTER TK14588 QB multiplier core circuit . P the characteristic impedance Delay Line delay line Page 15 ...
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... TK14588 CIRCUIT DESCRIPTION (CONT.) Establishing Demodulation Characteristics: Generally, demodulation characteristics of FM detectors are determined by the external phase shifter. However, this product has a unique function which can optionally establish the demodulation characteristics by the time constant of the circuit parts after demodulation. The following explains this concept. ...
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... FIGURE 9 - EXAMPLE OF DIVIDING SUPPLY VOLTAGE INTO HALVES BY THE RESISTORS Comparator: The TK14588V contains a general purpose high-speed data comparator for the base band processing. Because the input stage is composed of PNP transistors possible to operate from a minimum voltage of 0 the supply voltage minus ...
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... TK14588 CIRCUIT DESCRIPTION (CONT.) Comparator (cont.): Figure 11 shows the internal equivalent circuit of the comparator output stage. Because the comparator output is an open collector suitable for many interface levels. This open collector output is connected with an electrostatic discharge protection diode at the GND side only not connected with it at the power supply side in consideration of operating the voltage over the supply voltage of this IC ...
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... TEST BOARD January 2000 TOKO, Inc C10 = 0. 4 1000 pF 3 836BH-0268 (TOKO) TK14588 Page 19 ...
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... Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 IC-119-TK119xx 0798O0.0K Marking Information TK14588V 14588 Fax: (847) 699-7864 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 January 2000 TOKO, Inc ...