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BH7370FS Datasheet

  • BH7370FS

  • TV Sound and Video Receiver Circuit

  • 133.36KB

  • 9頁(yè)

  • ETC

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Video ICs
VIF / SIF signal processor
for televisions and VCRs
BH7370FS
The BH7370FS is a VIF / SIF signal processor that supports the M mode (used in the U.S. and Japan). An applica-
tion of BiCMOS process and active filter technology, this IC has been designed with an internal VCO, AFT, sound
band-pass filter, sound-trap and FM demodulator circuit. And thanks to Rohm's original automatic adjustment tech-
nology, the digital AFT circuit, internal tank circuit and filter circuit are all adjustment-free.
鈥?/div>
Applications and tuner blocks for multimedia devices
TVs, LCD TVs,
鈥?/div>
Features adjustment-free IF tank coil and audio filter.
1) Internal
2) Digital AFT circuit, for highly precise, highly stable
frequencies.
3) The reference signal input from the tuner fixed at
4MHz, eliminating the need for an oscillator.
4) No VCO coil is used, allowing for excellent resis-
tance to magnetic noise.
5) A pulse count audio detector circuit with excellent
S / N and linearity.
6) Internal B / W inverter circuit.
鈥?/div>
Absolute maximum ratings (Ta = 25擄C)
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
Pd
Topr
Tstg
Limits
7.0
650
鈭?/div>
鈥?15 ~ + 75
鈥?40 ~ + 150
Unit
V
mW
擄C
擄C
鈭?/div>
Reduced by 6.5mW for each increase in Ta of 1擄C over 25擄C.
鈥?/div>
Operating conditions (Ta = 25擄C)
Parameter
Power supply voltage
Guaranteed operating
power supply voltage
Symbol
V
CC5V
V
CC
Min.
4.7
4.5
Typ.
5.0
5.0
Max.
5.3
5.5
Unit
V
V
1

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