AK2364 Datasheet, PDF (12/26 Pages) Asahi Kasei Microsystems – Two-way Radio Filterless FM Detector LSI

[AK2364]
12. Analog Characteristics
For the following conditions unless otherwise specified: LOIN=50.4MHz,MIXIP=50.85MHz,
Δf=±1.5kHz, fmod=1kHz、AGC+BPF=F4, the exposure back pad of the package is connected to VSS,
with the external circuit shown in example page 21 to 24.
1) Local
Parameter
Symbol Condition Min.
Local Frequency
F_LO LOIN
Input amplitude
V_LO LOIN
0.2
Note) Input from LOIN pin through DC cut
Typ.
45.9
50.4
57.6
Max.
1.0
Units
MHz
V_PP
Notes
Note)
2) 2nd Mixer
Parameter
Input Impedance
Note)
Condition
Input Frequency
Voltage Gain
Noise Figure
Note) Include external matching circuit
Min. Typ. Max. Units Notes
50
Ω Note)
F_LO
+0.45
MHz
23
dB
13
dB
3) Discriminator
Parameter
Condition
Min. Typ. Max. Units Notes
Demodulation
Δf=±3.0kHz,fmod=1kHz,
LIMITER IN to AUDIOOUT Note)
60
100
140
mVrms
BAND
=1
Output Level
Δf=±1.5kHz,fmod=1kHz,
LIMITER IN to AUDIOOUT Note)
60
100
140
mVrms
BAND
=0
S/N Ratio
Δf=±3.0kHz,fmod=1kHz,
LIMITER IN to AUDIOOUT Note)
50
dB
BAND
=1
Note) With De-emphasis＋BPF(0.3 to 3kHz)
4) RX Overall Characteristics
Parameter
Condition
Min.
12dB SINAD
Sensitivity
Input
Note)
IIP3
Demodulation
Output
Level
Δf=±3.0kHz,fmod=1kHz,
AGC+BPF=F3
Note)
60
Δf=±1.5kHz,fmod=1kHz,
AGC+BPF=F4
Note)
60
S/N Ratio
Δf=±3.0kHz,fmod=1kHz,
AGC+BPF=F3
Note)
40
Δf=±1.5kHz,fmod=1kHz,
AGC+BPF=F4
Note)
34
Note)With De-emphasis＋BPF(0.3 to3kHz)
Typ.
-104
-16
100
100
46
40
Max.
140
140
Units
dBm
Notes
dBm
mVrms
mVrms
dB
dB
BAND
=1
BAND
=0
BAND
=1
BAND
=0
MS1431-E-01
- 12 -
2012/10