TA31273FNG(EL) Toshiba, TA31273FNG(EL) Datasheet

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TA31273FNG(EL)

Manufacturer Part Number
TA31273FNG(EL)
Description
IC RECEIVER RFIC 450MHZ 20SSOP
Manufacturer
Toshiba
Datasheet

Specifications of TA31273FNG(EL)

Frequency
240MHz ~ 450MHz
Applications
*
Current - Receiving
6.8mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
*
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Sensitivity
-
Memory Size
-
Data Rate - Maximum
-
Modulation Or Protocol
-
AM 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
Block Diagram
RF frequency: 240 to 450 MHz
IF frequency: 10.7 MHz
Operating voltage range: 3.0 to 5.5 V
Current dissipation: 6.8 mA (typ.)
Current dissipation at BS: 0 µA (typ.)
Small package: 20-pin SSOP (0.65-mm pitch)
(Not operating local oscillator)
20
1
FIL
OUT
OSC
IN
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
×8
V
19
2
CC1
T A 3 1 2 7 3 F N
FIL
IN
RSSI
LOBS
18
3
RSSI BS
17
4
MIX
OUT
V
16
5
CC2
MIX
IN
IN
IF
1
15
6
GND1
DEC
IF
14
7
RF
OUT
REF
13
MONI
Comparator
8
Weight: 0.09 g (typ.)
GND2
12
9
RF
DEC
DATA
10
11
RF
IN
SAW
TA31273FN
2002-07-08

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TA31273FNG(EL) 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 • ...

Page 2

Pin Function (The Values Of Resistor And Capacitor In The Internal Equivalent Circuit Are Typical.) Pin Pin Name No. 1 OSC IN Local oscillator input pin Power supply pin 1. CC1 Lo switch pin. 3 LOBS H: x8 ...

Page 3

Pin Pin Name No signal input pin DEC Emitter pin for internal transistor OUT RF amp output pin. Since this pin is connected to an internal circuit MONI should either ...

Page 4

Functions 1. Waveform shaper circuit The output data (pin 10) are inverted. 2. RSSI function DC potential corresponding to the input level (pin 6) is output to RSSI (pin 18). Output to RSSI (pin 18) is converted ...

Page 5

Battery-saving (BS) function and Lo switch LOBS function The IC incorporates a battery-saving function and a Lo switch function. These functions offer the following selection. BS Pin/LOBS Pin H/H H/L L/H L amp gain 1 RF amp ...

Page 6

Bit rate filter for AM The current AM bit rate filter is used as a quadratic filter. If the filter used at a rate other than 1200 bps, please change the filter constant. (The bit rate ...

Page 7

Maximum Ratings (Unless Otherwise Specfied Ta = 25°C, Voltage Value is Determined by GND (TYP)) Characteristics Supply voltage Current dissipation Operating temperature range Storage temperature range The maximum ratings must not be exceeded at any time. Do not operate the ...

Page 8

Test Circuit 20 19 FIL FIL OUT IN ×8 OSC V IN CC1 Test Circuit 1 (1) V RSSI 0.01 µ (3) V DATA ...

Page 9

G v (RF) 2 1000 Test Circuit 2 I ccqam Test Circuit 3 I cco ( (MIX) 1000 ...

Page 10

Reference data(This is temperature characteristics data when it used evaluation boards. This is not guarantee on condition that it is stating except electrical characteristics. Current consumption vs. Power supply voltage characteristics −40°C Fin (Lo) = 40.7 ...

Page 11

Mixer conversion gain vs. Local input level characteristics 25 20 110°C 15 25°C 10 −40° −5 Fin (MIX) = 314.9 MHz V in (MIX dBµV −10 Fin (Lo) = 40.7 MHz − ...

Page 12

Application Circuit 1000 pF C20 FIL FIL RSSI BS MIX GND1 OUT IN IN RSSI ×8 OSC MIX IF V LOBS V OUT IN CC1 CC2 ...

Page 13

Package Dimensions Weight: 0.09 g (typ.) 13 TA31273FN 2002-07-08 ...

Page 14

... 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 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 ...

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