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PDF BU1924FS Data sheet ( Hoja de datos )
| Número de pieza | BU1924FS | |
| Descripción | RDS / RBDS decoder | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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U.comAudio ICs
BU1924 / BU1924F / BU1924FS
RDataSSh/ eRetB4DS decoderBU1924 / BU1924F / BU1924FS
w.DThe BU1924, BU1924F and BU1924FS are RDS / RBDS decoders that employ a digital PLL and have a built-in
ww anti-aliasing filter and an eight-stage BPF (switched-capacitor filter). Linear CMOS circuitry is used for low power
consumption.
mzApplications
RDS / RBDS compatible FM receivers for American and European markets, car stereos, high-fidelity stereo systems and
ocomponents, and FM pagers.
.czFeatures
U1) Low current.
2) Two-stage anti-aliasing filter (LPF).
t43) 57kHz band-pass filter.
4) DSB demodulation (digital PLL).
e5) Quality indication output for demodulated data.
hezAbsolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
SPower supply voltage
taMaximum input voltage
Maximum output voltage
aPower dissipation
VDD
VMax.
IMax.
Pd
−0.3~+7.0
−0.3~VDD+0.3
±4.0
1000∗1(BU1924)
300∗2(BU1924F)
500∗3(BU1924FS)
.DOperating temperature
Topr
−40~+85
Storage temperature
Tstg
−55~+125
w∗1 Reduced by 10.0mW for each increase in Ta of 1°C over 25°C.(BU1924)
∗2 Reduced by 3.0mW for each increase in Ta of 1°C over 25°C.(BU1924F)
∗3 Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.(BU1924FS)
Unit Conditions
V VDD1 VDD2
V All input pins
mA All output pins
mW −
°C −
°C −
wwzRecommended operating conditions (Ta = 25°C)
mParameter
.coPower supply voltage
Symbol
VDD1
VDD2
Min.
2.7
2.7
Typ.
−
−
Max.
5.5
5.5
Unit
V
V
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Audio ICs
zElectrical characteristic curves
30
20
10
0
−10
−20
−30
−40
−50
−60
−70
10 20 30 40 50 60 70 80 90 100
FREQUENCY : f (kHz)
Fig.1 Band-pass filter characteristics
zExternal dimensions (Units : mm)
BU1924
BU1924 / BU1924F / BU1924FS
BU1924F
19.4±0.3
16
9
1
2.54
8
7.62
0.5±0.1
0 ∼15
0.3±0.1
BU1924FS
DIP16
6.6±0.2
16 9
10.0±0.2
16 9
18
1.27 0.4±0.1 0.3Min.
SOP16
0.15
18
0.15±0.1
0.1
0.8
0.36±0.1
SSOP-A16
5/5
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet BU1924FS.PDF ] | |
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