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PDF BH1416F Data sheet ( Hoja de datos )
| Número de pieza | BH1416F | |
| Descripción | Wireless Audio Link IC | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Audio ICs
Wireless Audio Link IC
BH1416F
BH1416F
The BH1416F is a FM stereo transmitter IC that transmits simple configuration. The IC consists of a stereo modulator for
generating stereo composite signals and a FM transmitter for broadcasting a FM signal on the air. The stereo modulator
generates a composite signal which consists of the MAIN, SUB, and pilot signal from a 38kHz oscillator.
The FM transmitter radiates FM wave on the air by modulating the carrier signal with a composite signal.
zApplications
Wireless speakers, Personal computer(sound board), Game machine, CD changer, Car TV, Car navigation
zFeatures
1) It is possible to improve the timbre because it has the pre-emphasis circuit, limiter circuit, and the low-pass filter circuit.
2) Built-in pilot-tone system FM stereo modulator circuit.
3) The transmission frequency is stable because it has a PLL system FM transmitter circuit.
4) PLL controls data input in parallel (4bits, 14ch).
zAbsolute maximum ratings (Ta = 25°C, In measurement circuit.)
Parameter
Symbol
Supply voltage
VCC
Date input voltage
VIN-D
Phase comparator output voltage VOUT-P
Power dissipation
Pd
Storage temperature
Tstg
∗ Derating : 4.5mW/°C for operation above Ta=25°C.
Limits
+7.0
−0.3 to VCC+0.3
−0.3 to VCC+0.3
450∗
−55 to +125
Unit
V
V
V
mW
°C
Conditions
Pin8,12
Pin15,16,17,18
Pin7
zRecommended operating conditions (Ta = 25°C)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Operating supply voltage
VCC 4.0 − 6.0 V Pin8,12
Operating temperature
Topr
−40
−
+85 °C
Audio input level
VIN-A
−
− −10 dBV Pin1,22
Audio input frequency band
fIN-A 20 − 15k Hz Pin1,22
Pre-emphasis time constant set up range t PRE
−
Transmission frequency(200kHz step)
fTX
76.8
88.0
Control terminal "H" level input voltage
VIH 0.8VCC
−
−
−
155 µsec Pin2,21
78.0
89.2
MHz Pin9,11
VCC V Pin15,16,17,18
Control terminal "L" level input voltage
VIL GND − 0.2VCC V Pin15,16,17,18
1/2
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| PDF Descargar | [ Datasheet BH1416F.PDF ] | |
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