SA1021 Datasheet, PDF (3/6 Pages) Silan Microelectronics Joint-stock – FM RADIO RECEIVER FOR PORTABLE SYSTEM

SA1021
(continued)
Characteristics
AM Suppression of Output Voltage
Ripple Rejection
Oscillator Voltage (r.m.s. value)
Variation of Oscillator Frequency
with Temperature
Selectivity
AFC Range
Mute Range
Audio Bandwidth
AF Output Voltge(r.m.s. value)
Max.d.c. load
AF Output Max.a.c. load (peak
value)
Symbol
Test conditions
Ratio of AM signal
(fm=1kHz; m=80% ) to FM
AMS
signal (fm=1kHz;
∆f=±75kHz)
RR ∆Vp=100mV, f=1kHz
V5-4(rms) --
∆fosc/∆Tamb Vp= 1V
S+300
S-300
±∆frf
±∆frf
B
Vo(rms)
Io(dc)
see Fig.9
no modualtion
--
--
∆Vo=3dB,measured with
50µs pre-emphasis
RL(pin 14)=100Ω
--
Io(ac) THD=10%
Min.
--
--
--
--
--
--
--
--
--
--
-100
--
Typ. Max. Unit
50
--
dB
30
--
dB
250 -- mV
5
-- KHz/°C
46
--
dB
30
--
dB
160 -- kHz
120 -- kHz
10
-- kHz
90
-- mV
-- +100 µA
3
-- mA
Fig.2 Supply current as a function of the supply Fig.3 Field strength voltage (V9-3) at Rsource=1kΩ;
voltage
f=96.75MHz;Vp=3V
Fig.4 Mono operation: AF output voltage (Vo) and total
harmonic distortion (THD) as functions of input e.m.f.
(EMF); Rsource=75Ω; frf=96MHz; 0dB=90mV. For S+N and
noise curves (1) is with muting enabled and (2) is with
muting disabled; signal ∆f=±22.5kHz and fm=1kHz.
For THD curve,∆f=±75kHz and fm=1kHz.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.0 2004.07.31
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