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PDF TA2022AFN Data sheet ( Hoja de datos )
| Número de pieza | TA2022AFN | |
| Descripción | 1.5V AM/FM IF+MPX | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2022AFN
TA2022AFN
1.5V AM / FM IF + MPX
TA2022AFN is the AM / FM IF + MPX system IC, which is
developed for headphone radio in 1.5V use.
This is included many functions and this can be used for digital
tuning system with IF counter.
Features
· Suitable for combination with digital tuning system
which is included IF counter.
· Built−in AM / FM IF count output for IF counter of
digital tuning system.
FM: 10.7MHz
AM: 450kHz
· Adjustable for stop pulse sensitivity (in FM mode)
· For adopting ceramic discriminator, it is not necessary to
adjust the FM QUAD detector circuit.
· Built−in AM IF output for AM stereo
· MPX input for main signal is independent of that for pilot signal.
(MPX input for pilot signal is shared with AM input)
· MPX output is high−impedance in power off mode.
· Built−in power switch
· Low supply current (VCC = 1.2V, Ta = 25°C)
FM mode: ICC2 = 5.5mA (typ.)
AM mode: ICC3 = 3.7mA (typ.)
· Operating supply voltage range (Ta = 25°C)
VCC (opr) = 0.95~2.2V
· Stereo operating supply voltage range (Ta = 25°C)
VCC (opr) = 1.0~2.2V
Weight: 0.14 g (typ.)
1 2002-10-30
1 page  
Terminal
No. Name
Function
14 LOUT
Output of stereo signal
These terminals are high-
impedance in power off
mode.
15 ROUT
16 LPF1 LPF terminar for phase detector
VCO
The temperature characteristic
17 VCO
of free running frequency is
+350ppm / °C.
Temperature coefficient: SH
18
LPF2A
LPF terminal for synchronous
detector
LPF terminal for synchronous
19
LPF2B
detector and AM / FM switch
VCC: AM mode
OPEN: FM mode
21
PILOT IN
Input of FM stereo pilot signal
and AM signal
Internal Circuit
TA2022AFN
Terminal
Voltage (V)
AM FM
0.5 0.5
――
― 1.2
――
1.2 ―
0.1 0.1
5 2002-10-30
5 Page 
Characteristic
Voltage gain 1
Voltage gain 2
Channel balance
Maximum composite signal
input level
Total harmonic
distortion
Mono
Stereo
AM
Separation
Stereo indicator
sensitivity
On
Off
Stereo indicator hysteresis
Capture range
Signal noise ratio 3
Power switch
On current
Off voltage
AM mode on current
FM mono mode on voltage
IF request off voltage
TA2022AFN
Symbol
GV (FM)
GV (AM)
CB
Vin (MAX)
THD3
THD4
THD5
SEP
ST (ON)
ST (OFF)
VH
CR
S / N3
I23
V23
I19
V16
V11
Test
Cir-
cuit
Test Condition
Vin = 100mVrms (mono)
L + R =90%, P = 10%
THD = 3%
Vin = 100mVrms (mono)
L + R =90mVrms, P = 10mVrms
Vin = 100mVrms
1 fm = 100Hz
L + R =90mVrms
P = 10mVrms
fm = 1kHz
fm = 10kHz
Pilot signal input
I13 = 0.5mA, SW5: a
To indicator turn off from
turn on
P = 10mVrms, fp = 19kHz
Vin = 100mVrms (mono)
SW1: c
SW1: d
2 VCC = 0.95V SW3: c
SW4: ON
SW7: ON
Min.
-1.5
-0.5
-2
―
―
―
―
―
25
―
―
2
―
―
―
5
0
50
―
0.9
Typ.
+0.5
+1.5
―
220
0.2
0.3
0.2
36
35
34
5.5
4
1.5
±7
65
―
―
―
0.1
―
Max. Unit
+2.5
+3.5
+2
dB
― mVrms
0.5
―%
―
―
― dB
―
8
mVrms
―
― mVrms
―%
― dB
― µA
0.3 V
― µA
―V
―V
11 2002-10-30
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TA2022AFN.PDF ] | |
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