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PDF TA2149BN Data sheet ( Hoja de datos )

Número de pieza TA2149BN
Descripción 3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System)
Fabricantes Toshiba Semiconductor 
Logotipo Toshiba Semiconductor Logotipo



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TA2149BN/BFN
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2149BN,TA2149BFN
3 V AM/FM 1 Chip Tuner IC (for Digital Tuning System)
TA2149BN, TA2149BFN are AM/FM 1 chip tuner ICs, which
are designed for portable Radios and 3 V Head phone Radios.
This is suitable for Digital Tuning System Applications. FM
Local Oscillation Voltage is set up low relativity, for NEW FCC.
Functions
· For NEW FCC.
· Suitable for combination with Digital Tuning System which is
included IF Counter.
· Adjustable for IF count output sensitivity by external
resistance of pin 17 (FM only).
· One terminal type AM/FM IF count output for IF counter of
Digital Tuning System.
· FM: 1.3375 MHz (1/8 dividing)
· AM: 450 kHz
· Built-in Mute Circuit for IF count output.
· For adopting ceramic Discriminator, it is not necessary to
adjust the FM Quad Detector Circuit.
· Built-in FM MPX VCO circuit.
· Built-in one terminal type AM/FM Local Oscillator Buffer
Output for Digital Tuning System Applications.
· Built-in 1/16 Pre-scaler for FM Local OSC Buffer.
· Built-in AM Low cut circuit.
· Low supply current. (VCC = 3 V, Ta = 25°C)
ICCq (FM) = 13 mA (Typ.)
ICCq (AM) = 8.5 mA (Typ.)
· Operating Supply voltage range: VCC = 1.8~7 V (Ta = 25°C)
TA2149BN
TA2149BFN
Weight
SDIP24-P-300-1.78: 1.2 g (Typ.)
SSOP24-P-300-0.65A: 0.14 g (Typ.)
Note 1: Handle with care to prevent devices from deteriorations by static electricity.
1 2001-12-21

1 page




TA2149BN pdf
PIN
No.
Characteristic
LPF2
· LPF terminal for phase
detector
13 · Bias terminal AM/FM SW
circuit
V13 = GND ® AM
V13 = OPEN ® FM
LPF1
· LPF terminal for
14
synchronous detector
· VCO stop terminal
V14 = GND ® VCO
STOP
Internal Circuit
13
AM/FM
SW
TA2149BN/BFN
Terminal Voltage
(Typ.) (V)
AM FM
0 2.2
8 GND
14
DC
AMP
0.7 2.4
8 GND
15 MPX IN
16 DET OUT
55 kW
15
GND 8
0.7 0.7
VCC 5
AM
a
GND 8
FM
16
750 W
1.0
0.9
b
a LOW ® FM, HIGH ® AM
b LOW ® AM, HIGH ® FM
5 2001-12-21

5 Page





TA2149BN arduino
TA2149BN/BFN
Characteristic
Symbol
Test
Circuit
Test Condition
Min
Input resistance
Output resistance
Max. composite signal input
voltage
RIN
ROUT
Vin MAX
(Stereo)
Separation
Sep.
¾¾
¾
¾¾
¾
L + R = 90%, P = 10%,
¾ SW3: LPF ON
fm = 1 kHz, THD = 3%
¾
L+R=
¾
180 mVrms,
P = 20 mVrms
SW3: LPF ON
fm = 100 Hz
fm = 1 kHz
fm = 10 kHz
¾
35
¾
MPX
Monaural
Total harmonic
distortion
Stereo
THD
(Monaural)
¾
Vin = 200 mVrms
THD
(Stereo)
¾
L+R = 180 mVrms,
P = 20 mVrms, SW3: LPF ON
¾
¾
Voltage gain
Channel balance
Stereo LED
sensitivity
ON
OFF
Stereo LED hysteresis
GV
C.B.
VL (ON)
VL (OFF)
VH
¾ Vin = 200 mVrms
¾ Vin = 200 mVrms
¾
Pilot input (19 kHz)
¾
-2.7
-1.5
¾
5
¾
To LED turn off from LED turn
on
¾
Capture range
C.R.
¾ P = 15 mVrms
¾
Signal noise ratio
Muting attenuation
S/N
MUTE
¾ Vin = 200 mVrms
¾ Vin = 200 mVrms
¾
¾
Typ.
55
5
700
45
45
45
0.3
0.3
-1.2
0
10
8
2
±8
80
80
Max
¾
¾
¾
¾
¾
¾
¾
¾
0.2
1.5
14
¾
¾
¾
¾
¾
Unit
kW
kW
mVrms
dB
%
dB
dB
mVrms
mVrms
%
dB
dB
Coil Data
Coil No.
Test Freq.
L
(mH)
L1 FM RF 100 MH¾
L2 FM OSC 100 MH¾
T1 AM OSC 796 kH268
T2 AM IFT 455 kH
¾
Co
(pF)
¾
¾
¾
470
Qo
Turns
Wire
1-2 2-3 1-3 1-4 4-6 (mmf)
Reference
79
¾
¾
21
2
¾
¾
0.16UEW
Toko Co., Ltd.
666SNF-305NK
76
¾¾
2
¾
¾
0.16UEW
Toko Co., Ltd.
666SNF-306NK
65
19
95
¾
¾
¾
0.05UEW
Toko Co., Ltd.
5PNR-5146Y
60
¾ ¾ 109 ¾
7
0.05UEW
Toko Co., Ltd.
5PLG-5147X
L1: FM RF
3
1
L2: FM OSC
3
1
T1: AM OSC
Pin 20
34
2
16
VCC
T2: AM IFT
FM C.F.
AM C.F.
34
2
16
Pin 4
VCC
11 2001-12-21

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