CM5018
(Preliminary)
Low Power Narrowband FM IF
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052 Page
1 of 6 Rev 0.2 Fev.13,2004
The
CM5018 includes an Oscillator, Mixer, Limiting Amplifier,
Quadrature Discriminator, Active Filter, Squelch, Scan Control and Mute
Switch. This device is designed for use in FM dual conversion
communications equipment.
Operates from 2.0 to 8.0 V Supply
Low Drain Current 2.8 mA Typical @ VCC = 4.0 Vdc
Excellent Sensitivity: Input Limiting Voltage
3.0 dB = 2.6
V Typical
Low Number of External Parts Required
Operating Frequency Up to 60 MHz
Full ESD Protection
Limiter
Amp
Filter
Amp
Squelch Trigger with
Hysteresis
Oscillator
Mixer
52 k
Demodulator
AF
50 k
10 pF
+
Limiter
Input
Quad
Coil
8
7
Crystal
Osc
Mixer
Output
VCC
Decoupling
6
5
4
3
2
1
9
10
11
14
13
12
Recovered
Audio
15
Mixer
Input
Filter
Output
Squelch
In
Scan
Control
Filter
Input
Mute
Gnd
16
1.8 k
1.8 k
Amp
Representative Block Diagram
This device contains 92 active transistors.
CM5018
(Preliminary)
Low Power Narrowband FM IF
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052 Page
2 of 6 Rev 0.2 Fev.13,2004
MAXIMUM RATINGS
(TA = 25
C, unless otherwise noted.)
Rating
Pin
Symbol
Value
Unit
Power Supply Voltage
4
VCC(max)
10
Vdc
Operating Supply Voltage Range
4
VCC
2.0 to 8.0
Vdc
Detector Input Voltage
8
1.0
Vpp
Input Voltage (VCC
q
4.0 V)
16
V16
1.0
VRMS
Mute Function
14
V14
0.5 to +5.0
Vpk
Junction Temperature
TJ
150
C
Operating Ambient Temperature Range
TA
30 to +70
C
Storage Temperature Range
Tstg
65 to +150
C
ELECTRICAL CHARACTERISTICS
(VCC = 4.0 Vdc, fo = 10.7 MHz,
f =
3.0 kHz, fmod = 1.0 kHz, TA = 25
C,
unless otherwise noted.)
Characteristic
Pin
Min
Typ
Max
Unit
Drain Current (No Signal)
Squelch "Off"
Squelch "On"
4
2.0
3.7
2.8
5.2
3.5
6.3
mA
Squelch "Off"
Squelch "On"
2.0
3.7
2.8
5.2
3.5
6.3
Recovered Audio Output Voltage (Vin = 10 mVrms)
9
130
170
210
mVrms
Input Limiting Voltage ( 3.0 dB Limiting)
16
2.6
6.0
V
Total Harmonic Distortion
9
0.86
%
Recovered Output Voltage (No Input Signal)
9
60
190
350
mVrms
Drop Voltage AF Gain Loss
9
3.0
0.6
dB
Detector Output Impedance
450
Filter Gain (10 kHz) (Vin = 0.3 mVrms)
40
50
dB
Filter Output Voltage
11
0.5
0.7
0.9
Vdc
Mute Function Low
14
30
50
Mute Function High
14
1.0
11
M
Scan Function Low (Mute "Off") (V12 = 1.0 Vdc)
13
0
0.4
Vdc
Scan Function High (Mute "On") (V12 = Gnd)
13
3.0
3.9
Vdc
Trigger Hysteresis
45
100
mV
Mixer Conversion Gain
3
28
dB
Mixer Input Resistance
16
3.3
k
Mixer Input Capacitance
16
9.0
pF
CM5018
(Preliminary)
Low Power Narrowband FM IF
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052 Page
3 of 6 Rev 0.2 Fev.13,2004
VCC, SUPPLY VOLTAGE (V)
8.2 k
0
60
Audio Output
Audio Output
80
120
160
140
180
200
220
240
20
0.1
Distortion
0
1.0
2.0
TA, AMBIENT TEMPERATURE (
C)
40
20
80
40
Distortion
110
120
130
140
150
160
170
180
190
100
0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
8.0
6.0
4.0
0.1
Mixer Input
10.7 MHz
20 k
1.0
510
10 k
0.01
muRata
CFU455D2
VCC
FL1
51
68 pF
220 pF
10.245 MHz
0.01
0.1
+
+
470 k
SQ SW Input
1.0
FL1 muRata Erie North America CFU455D2 or equivalent
Quadrature Coil Toko America Type 7MC8128Z or equivalent
C
F, unless noted
1
2
3
4
5
6
7
8
AF Output
Filter Amp In
Filter Amp Out
Scan Control
Audio Mute
9
10
11
12
13
14
15
16
Quad Coil
2.0
AUDIO OUTPU
T
(m
V
rms)
AUDIO OUTPU
T
DIS
T
O
R
TION (%)
CM5018
T
cA = 25
C
VCC = 4.0 V
AUDIO OUTPU
T
(m
V
rms)
Figure 2. Audio Output, Distortion
versus Supply Voltage
Figure 3. Audio Output, Distortion
versus Temperature
Figure 1. Test Circuit
CM5018
(Preliminary)
Low Power Narrowband FM IF
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052 Page
4 of 6 Rev 0.2 Fev.13,2004
Audio Output (1.0 kHz)
20
INPUT SIGNAL (mVrms)
INPUT SIGNAL (mVrms)
70
N
S + N (30% AM)
0
f, FREQUENCY (Hz)
VCC, SUPPLY VOLTAGE (Vdc)
0
4.0
8.0
2.0
6.0
10 k
2.0
0
100 k
70
60
50
40
8.0
1.0 k
VCC, SUPPLY VOLTAGE (V)
0
0
80
70
60
50
40
30
20
10
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0.01
10
1.0
0.1
60
10
6.0
50
40
30
0
10
1.0
0
1.0
2.0
3.0
5.0
6.0
4.0
0.001
0.01
0.1
1.0
0.001
30
20
1.0 M
10
4.0
LIMITING (dB)
GAIN (dB)
RELA
TIVE OUTPUT
(dB)
GAIN (dB)
SUPPL
Y
CURRENT
(mAdc)
Figure
4. Input Limiting Voltage
Figure
5. Overall Gain, Noise and AM Rejection
Figure
6. Filter Amp Response
Figure
7. Filter Amp Gain
Figure
8. Supply Current
Squelch "On"
Squelch "Off"
VCC = 4.0 V
Referred to 0 dB for
S + N
3.0 kHz FM
CM5018
(Preliminary)
Low Power Narrowband FM IF
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525 Http: www.ceramate.com.tw
Fax:886-3-3521052 Page
5 of 6 Rev 0.2 Fev.13,2004
Figure
9. Simplified Application
Units:
R :
C :
F
unless noted
3
2
4
1
9
10
11
12
13
14
15
16
R7
18 k
Scan Control
to PLL
5
6
7
8
R4
6.8 k
C10
0.001
C7
0.022
C9
0.001
R6
470 k
10.245
MHz
C2
68 pF
C3
220 pF
FL1
R2
20 k
C5
0.1
C4
0.1
C6
0.1
Quad Coil
CM5018
R3
3.3 k
VR1
22 k
C8
0.047
AF Output
to Audio
Power Amp.
R5
3.3 k
R8
4.7 k
VR2 (Squelch Control)
10 k
R10
1.0 k
R9
100 k
C12
4.7
+
C11
0.1
+
C13
10
VCC = 4.0 V
1st IF 10.7 MHz
from Input
Front End
R1
51
C1
0.01
FL1 muRata Erie North America Type CFU455D2 or equivalent
Quadrature Coil Toko America Type 7MC8128Z or equivalent
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