Tk14521Mtl (Xa0515) - Alinco DJ-493 Service Manual

4) TK14521MTL (XA0515)

IF System
C D m
HÉ]— É)
Ta = 25°C, Vcc = 3V, fin = 10.7MHz, fm = 1kHz, Mod = ±3kHz
Parameter
Supply Current
Mixer + IF part
Limiting Sensitivity
Output Voltage
Distortion
S/N
AM Rejection Ratio
Mixer Coversion Gain
Mixer 3rd Intercept point
Mixer Input Impedance
Mixer Output Impedance
Limiter Input Impedance
RSSI part
RSSI Output Current 1
RSSI Output Current 2
RSSI Output Current 3
Squelch BPF part
Center Frequency 1
Center Frequency 2
Center Frequency 3
Squelch Output Current
Squelch ON Voltage
Squelch OFF Voltage
*o
*o '
< 3
<
o.
o
C
j
Ratings
Symbol
Min
Typical
Icc
4.3 7.0
Limit -94
-100
Vo 200 300
THD
0.8
S/N 40 46
AMRR 30 40
G 20 26
m
ICP
-10 -3
2.8 3.6
R
im
R
om 1.2 1.5
1.2 1.5
R
i f i n
41 60
I 1
r s s i
40
22
I 2
r s s i
10 17
I 3
r s s i
1 10.5 15.0
fC T
21.0 30.0
fC T 2
38.5 55.0
(C T 3
Iso 6 10
0.40 0.47
V S O (O N )
VSQfOFF) 0.50 0.57
Unit
Max
9.8 mA No signal
-106 dBm -3.0dB point
400 mVrms
2.8 %
52 dB
dB AM 30% mod
dB
32
dBm
K n
DC Test
4.4
Kn
1.9 DC Test
K n
1.9 DC Test
-30dBm is input.
38
ma
59 pA -60dBm is input.
25 pA -100dBm is input.
21.0 kHz Center frequency setting R»«>
39.0 kHz Center frequency setting R«36kQ
Center frequency setting R=6.Bkn
71.5 kHz
Center frequency setting R«36k£2
18 pA
25mVrms is input (Pin11)
0.54 DC voilage is input io pinl 3.
V
0.64 V DC voltage is input to pinl 3.
Condition