BH1414K
Multimedia ICs
Wireless Audio Link IC
BH1414K
The BH1414K is a FM stereo transmitter IC that uses a simple configuration. This IC consists of a stereo modulator for
generating stereo composite signals and a FM transmitter for broadcasting a FM signal on the air. A high S/N ratio and
good timbre transmitter circuit can be composed with a few components. It is available for many applications due to the
varieties of setting such as transmission output by serial data input.
!
Applications
CD changer, Car TV, Car navigation, Wireless speakers, Personal computer (sound board), Game machine
!
Features
1) It is possible to improve the timbre because it has the pre-emphasis circuit, limiter circuit, and the 19kHz/38kHz
low-pass trap filter circuit.
2) Built-in pilot-tone system FM stereo modulator circuit.
3) The transmission frequency is stable because it has a PLL system for the FM transmitter circuit.
4) PLL data input (CE, CK, DA) by serial input.
5) It is possible for input level setting, monaural operation and output ON/OFF control by serial input.
6) It is possible for the transmission output control.
!
Absolute maximum ratings
(Ta = 25擄C)
Parameter
Supply voltage
Power dissipation
Storage temperature range
Symbol
V
CC1
V
CC2
Pd
Tstg
Limits
+9.0
+10.0
500
鈭?5
to
+125
Unit
V
mW
擄C
鈭?/div>
Reduced by 5mW for each increase in Ta of 1擄C over 25擄C.
!
Recommended operating conditions
(Ta = 25擄C)
Parameter
Operating supply voltage
Operating temperature range
Audio input level
Audio input frequency
Transmission frequency
Symbol
V
CC
Topr
V
IN-A
f
IN-A
f
TX
Min.
4.5
鈭?0
鈭?/div>
20
75
Typ.
鈭?/div>
鈭?/div>
鈭?/div>
鈭?/div>
鈭?/div>
Max.
5.5
+85
500
15k
110
Unit
V
擄C
mVrms
Hz
MHz
1/3
BH1414K相關(guān)型號(hào)PDF文件下載
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