ta31273fn TOSHIBA Semiconductor CORPORATION, ta31273fn Datasheet
ta31273fn
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ta31273fn Summary of contents
Page 1
... TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic RF/IF Detector IC The TA31273FN is an RF/IF detector IC for AM radio. The IC incorporates an RF amp, 2-level comparator, and local x8 circuit. Features • RF frequency: 240 to 450 MHz • IF frequency: 10.7 MHz • Operating voltage range: 3.0 to 5.5 V • ...
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... REF AM comparator REF pin. 9 GND2 GND pin 2. AM waveform shaping output pin. 10 DATA Open collector output. Connect a pull-up resistor. Function 20 19 5.5 kΩ 2 TA31273FN Internal Equivalent Circuit 60 kΩ 3 210 Ω 4 3 kΩ 500 Ω 8 COMP 40 kΩ ...
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... FIL IN AM LPF input pin. 20 FIL OUT AM LPF output pin. Equivalent circuits are given to help understand design of the external circuits to be connected. They do not accurately represent the internal circuits. Function 19 3 TA31273FN Internal Equivalent Circuit 14 3 kΩ kΩ ...
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... kΩ, the current dissipation is approximately 800 µA. (comparator input level Figure 1 (pin 2) and V CC1 CC2 H x8 circuit in operation 12 RF DEC Figure 3 4 TA31273FN − After R is connected Figure 2 (pin 5) (or connect them). Also, use the same L x8 circuit halted/through pass 2002-07-08 ...
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... Comparator capacitor charger circuit x8 circuit only halted, Frequency set by external circuit can be used as-is. x8 circuit only in operation All circuits halted 0.01 µF 1000 Figure 4 5 TA31273FN IC Current Dissipation (at no signal) 6.8 mA (typ.) 3.8 mA (typ.) 3.0 mA (typ (typ.) SAW SG 50dBµV 2002-07-08 ...
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... R9 R8 C16 20 kΩ 20 kΩ 8200 pF 20 kΩ 20 kΩ 3900 pF 20 kΩ 20 kΩ 1800 pF 6 TA31273FN C13 4700 pF 2200 pF 1000 pF C13 6800 pF 3300 pF 1800 pF C14 C13 0.01 µF 560 pF 270 pF 4700 pF 150 pF 2200 pF ...
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... R RSSI = 80dBµVEMF V in (IF (2) for single-tone = (3) I DATAL DATAL I 1 (4) DATAH 7 TA31273FN V Min Typ. Max 3.0 5.0 5.5 = 5.0V , Rfin = 314.9 CC Min Typ. Max 5.1 6.8 8.5 0 20 −6.5 −3.5 −0.5 ...
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... LOBS V OUT CC2 IN DEC REF BPF CC 0.01 µF ( ( 4.7 kΩ 3 TA31273FN MONI RF RF DEC IN COMP GND2 DATA DATA R 0.01 µ DATA 100 kΩ V/100 × ...
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... G v (RF) 2 1000 Test Circuit 2 I ccqam Test Circuit 3 I cco ( (MIX) 1000 0.01 µ TA31273FN 0.01 µ 1000 2002-07-08 ...
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... TA31273FN Current consumption vs. Power supply voltage characteristics All internal circuits used Multiplier circuit turned off and external circuit used Only multiplier circuit used Fin (Lo) = 40.7 MHz (Lo) = 100 dBµ 25° ...
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... IF IN input V in (IF) (dBµVEMF) RSSI output voltage characteristics 3.0 2.5 2.0 1.5 1.0 0.5 40.0 6. input level V in (dBµVEMF) 1000 11 TA31273FN S/N characteristics (IF input) −40°C 25°C 110°C Fin (IF) = 10.7 MHz AM = 90% Fmod = 600 Hz 110°C −40°C 25° 110 130 (IF input) 110° ...
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... IN CC1 CC2 BPF X1 ：TR-1（Tokyo Denpa Co., Ltd.） BPF：SFE10.7MA5-A（Murata Manufacturing Co., Ltd.） SAW：SAFCH315MSM0T00B0S（Murata Manufacturing Co., Ltd.） 12 TA31273FN SAW MONI RF RF OUT DEC IN Comparator IF DEC REF GND2 DATA ...
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... Package Dimensions Weight: 0.09 g (typ.) 13 TA31273FN 2002-07-08 ...
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... 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. 14 TA31273FN 000707EBA 2002-07-08 ...