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BH1417F 반도체 회로 부품 판매점

Wireless Audio Link IC



ROHM Semiconductor 로고
ROHM Semiconductor
BH1417F 데이터시트, 핀배열, 회로
Multimedia ICs
Wireless Audio Link IC
BH1417F
BH1417F
The BH1417F 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.
Frequency is set for North America.
!Applications
Wireless speakers, Personal computer(sound board), Game machine, CD changer, Car TV, Car navigation
!Features
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 for North America).
!Absolute maximum ratings (Ta = 25°C, In measurement circuit.)
Parameter
Symbol
Limits
Unit
Supply voltage
Date input voltage
VCC
VIN-D
+7.0
0.3 to VCC+0.3
V
V
Phase comparator output voltage
Power dissipation
VOUT-P
Pd
0.3 to VCC+0.3
450
V
mW
Storage temperature
Tstg
Derating : 4.5mW/°C for operation above Ta=25°C.
55 to +125
°C
Conditions
Pin8,12
Pin15,16,17,18
Pin7
!Recommended 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
Transmission frequency(200kHz step)
Control terminal "H" level input voltage
τ PRE
fTX
VIH
87.7
106.7
0.8VCC
155
88.9
107.9
VCC
µs
MHz
V
Pin2,21
Pin9,11
Pin15,16,17,18
Control terminal "L" level input voltage
VIL GND 0.2VCC V Pin15,16,17,18
1/2


BH1417F 데이터시트, 핀배열, 회로
Multimedia ICs
!Application circuit
US BAND (88.0MHz89.2MHz)
BH1417F
10µ+
0.1µ
L-CH
+
1µ
1µ
+
22 21 20 19 18 17 16 15 14 13 12
PLL VCC
GND
R-CH
+
1µ
1µ
+
GND
VCC RF GND
1 2 3 4 5 6 7 8 9 10 11
GFWB3
1
0.01µ 1000p
+
(SOSHIN)
360 ANT
+
FEM10C-2F6 (SUMIDA)
GND
MPX
33p
330p 82p
KV-1471E
(TOKO)
10µ
+
10k
0.047µ
3.3k
100 100µ
+
VT
!External dimensions (Units : mm)
13.6±0.2
22 12
1 11 0.15±0.1
1.27 0.4±0.1
0.1
SOP22
GND
+
100µ
VCC
2/2




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BH1417F data

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Wireless Audio Link IC - ROHM Semiconductor