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BU1924 Datasheet

  • BU1924

  • RDS / RBDS decoder

  • 5頁

  • ROHM

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上傳產品規(guī)格書

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BU1924 / BU1924F
Audio ICs
RDS / RBDS decoder
BU1924 / BU1924F
The BU1924 and BU1924F are RDS / RBDS decoders that employ a digital PLL and have a built-in anti-aliasing filter and
an eight-stage BPF (switched-capacitor filter). Linear CMOS circuitry is used for low power consumption.
!
Applications
RDS / RBDS compatible FM receivers for American and European markets, car stereos, high-fidelity stereo systems and
components, and FM pagers.
!
Features
1) Low current.
2) Two-stage anti-aliasing filter (LPF).
3) 57kHz band-pass filter.
4) DSB demodulation (digital PLL).
5) Quality indication output for demodulated data.
!
Absolute maximum ratings
(Ta = 25擄C)
Parameter
Power supply voltage
Maximum input voltage
Maximum output voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
V
DD
V
Max.
I
Max.
Pd
Topr
Tstg
Limits
鈭?.3~+7.0
鈭?.3~V
DD
+0.3
鹵4.0
350
鈭?/div>
鈭?0~+85
鈭?5~+125
Unit
V
V
mA
mW
擄C
擄C
Conditions
V
DD1
V
DD2
All input pins
All output pins
鈭?/div>
鈭?/div>
鈭?/div>
鈭桼educed
by 3.5mW for each increase in Ta of 1擄C over 25擄C.
!
Recommended operating conditions
(Ta = 25擄C)
Parameter
Power supply voltage
Symbol
V
DD1
V
DD2
Min.
4.5
4.5
Typ.
鈭?/div>
鈭?/div>
Max.
5.5
5.5
Unit
V
V

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