TK14584M TOKO [TOKO, Inc], TK14584M Datasheet
TK14584M
Available stocks
Related parts for TK14584M
TK14584M Summary of contents
Page 1
... Very Small Package (SSOP-12) DESCRIPTION The TK14584M is a standard function general purpose IF IC capable of operating MHz. The TK14584M has a unique function that allows establishing the demodulation characteristics by changing the external RC time constant, and not changing the phase shifter constant. The RSSI ...
Page 2
... TK14584 ABSOLUTE MAXIMUM RATINGS Supply Voltage ........................................................... 6 V Operating Voltage Range .............................. 2.3 to 5.5 V Power Dissipation (Note 1) ................................ 250 mW TK14584M ELECTRICAL CHARACTERISTICS Test conditions 10.7 MHz kHz, Modulation = 50 kHz ...
Page 3
January 2000 TOKO, Inc. TEST CIRCUIT V CC RSSI 836BH-0268 (TOKO) OUT 3.3 k 0.01 µ GND 0.01 µF P.S. 0.01 µF 0.01 µF ~ IF-INPUT TK14584 1000 pF DET OUTPUT ...
Page 4
TK14584 TYPICAL PERFORMANCE CHARACTERISTICS S+ OUT, TOTAL HARMONIC DISTORTION vs. INPUT VOLTAGE 0 S+N -20 -40 -60 THD -80 N -100 -120 -100 -80 -60 -40 - (dBm) DETUNE CHARACTERISTICS -10 -20 V OUT -30 -40 ...
Page 5
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) SUPPLY CURRENT, OUTPUT VOLTAGE, TOTAL HARMONIC DISTORTION vs. TEMPERATURE 300 260 I CC 220 V OUT 180 140 THD 100 -40 - LIMITER GAIN vs. INPUT FREQUENCY 100 80 ...
Page 6
TK14584 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) S CURVE 3 9.9 10.3 10 (MHz) OUTPUT VOLTAGE vs. MODULATING FREQUENCY 208 mVrms 330 ...
Page 7
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) RSSI Output Voltage Transient Response (IF Input ON/OFF) IF INPUT VOLTAGE = -10, -40, -70 dBm C = 0.01 F 0.1 ms/div C = 0.001 F 20 µs/div C = 0.0001 F 20 µs/div January 2000 ...
Page 8
TK14584 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 ...
Page 9
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) RSSI Output Voltage Transient Response (Supply Voltage ON) IF INPUT VOLTAGE = -10, -40, -70 dBm 0.001 0.0001 F January 2000 TOKO, Inc ...
Page 10
TK14584 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 ...
Page 11
PIN FUNCTION DESCRIPTION ...
Page 12
TK14584 PIN FUNCTION DESCRIPTION ...
Page 13
CIRCUIT DESCRIPTION IF Limiter Amplifier, RSSI: The IF limiter amplifier is composed of five differential gain stages. The total gain of the IF limiter amplifier is 80 dB. The output signal of the IF limiter amplifier is provided at Pin ...
Page 14
TK14584 CIRCUIT DESCRIPTION (CONT.) The RSSI output is a current output. It converts to a voltage by an external resistor between Pin 11 and GND. The time constant of the RSSI output is determined by the product of the external ...
Page 15
CIRCUIT DESCRIPTION (CONT.) FIGURE DEMODULATED WAVEFORM FM Detector: The FM detector is included in the quadrature FM detector using a Gilbert multiplier suitable for high speed data communication because the demodulation bandwidth is over 1 ...
Page 16
TK14584 CIRCUIT DESCRIPTION (CONT.) The signal from the phase shifter is applied to the multiplier (in the dotted line) through emitter-follower stage QA. When the phase shifter is connected between Pin 10 and Pin 9, note that the bias voltage ...
Page 17
CIRCUIT DESCRIPTION (CONT.) V ref io Demodulated Output Current FIGURE 6 - INTERNAL EQUIVALENT CIRCUIT OF DETECTOR OUTPUT STAGE 35.2 mVrms - 1000 pF - MODULATING ...
Page 18
TK14584 CIRCUIT DESCRIPTION (CONT.) io Demodulated Output Current VB R1 FIGURE 8 - EXAMPLE OF USING EXTERNAL REFERENCE SOURCE FIGURE 9 - EXAMPLE OF DIVIDING SUPPLY VOLTAGE INTO HALVES BY THE RESISTORS ...
Page 19
TEST BOARD January 2000 TOKO, Inc C10 = 0. 4 1000 pF ...
Page 20
... 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 TK14584M 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 ...