TA2057N Ver la hoja de datos (PDF) - Toshiba
Número de pieza
componentes Descripción
fabricante
TA2057N Datasheet PDF : 18 Pages
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TA2057N
Electrical Characteristics
Unless Otherwise Specified, Ta = 25°C, VCC1 = 5V, SW3 = off, SW9 = GND, SW10 = 1
FM IF: f = 10.7MHz, ∆f = ±22.5kHz, fm = 1kHz
AM: f = 1MHz, MOD = 30%, fm = 1kHz
FM St Det: fm = 1kHz
Characteristic
Supply current
Input limiting
voltage
Recovered output
voltage
Symbol
ICC (FM)
ICC (AM)
Vin (lim)
VOD
Test
Cir-
Test Condition
cuit
1 FM mode, Vin = 0
1 AM mode, Vin = 0
1 -3dB limiting point
1 Vin = 80dBµV EMF
Min. Typ. Max.
Unit
―
20
26
mA
―
20
26
38
43
48 dBµV EMF
70
100 140
mVrms
Signal to noise ratio
Total harmonic
FM distortion
IF AM rejection ratio
LED on sensitivity
IF count output
voltage
IF count output
sensitivity
Gain
Recovered output
voltage
Signal to noise ratio
Total harmonic
distortion
S/N
THD
AMR
VL
VIF (FM)
IFsens
(FM)
GV
VOD
S/N
THD
1 Vin = 80dBµV EMF
1 Vin = 80dBµV EMF
1 Vin = 80dBµV EMF
1 IL = 1mA
1
SW3: On,
Vin = 80dBµV EMF
1 SW3: On, SW1: 0Ω
SW3: On, SW1: 5.1kΩ
1 Vin = 23dBµV EMF
1 Vin = 60dBµV EMF
1 Vin = 60dBµV EMF
1 Vin = 60dBµV EMF
―
70
―
dB
―
0.2
―
%
―
50
―
dB
43
48
53 dBµV EMF
350 500
―
mVp-p
―
73
―
dBµV EMF
―
62
―
35
70
105
mVrms
70
100 140
mVrms
―
45
―
dB
―
0.5
―
%
LED on sensitivity
AM Local OSC buff
output voltage
AM IF output
voltage for AM
stereo
VL
VOSC
(AM)
VIF (ST)
1 IL = 1mA
1 fOSC = 1.45MHz
1 fOSC = 27MHz
1
SW9: Vstb, MOD = 0%
Vin = 60dBµV EMF, SW10: 2
19
24
350 500
―
500
29 dBµV EMF
―
―
mVp-p
800
1100 1400
mVp-p
IF count output
voltage
IF count output
sensitivity
VIF (AM)
IFsens
(AM)
1
SW3: On,
Vin = 60dBµV EMF
1 SW3: On, SW2: 0Ω
SW3: On, SW2: 5.1kΩ
350 500
―
54
―
30
―
mVp-p
―
dBµV EMF
―
13
2002-10-30
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