MC13150
SEMICONDUCTOR
TECHNICAL DATA
NARROWBAND FM COILLESS
DETECTOR IF SUBSYSTEM
FOR CELLULAR AND
ANALOG APPLICATIONS
FTA SUFFIX
PLASTIC PACKAGE
CASE 977
(LQFP24)
24
1
Order this document by MC13150/D
FTB SUFFIX
PLASTIC PACKAGE
CASE 873
(LQFP32)
32
1
1
MOTOROLA ANALOG IC DEVICE DATA
Narrowband FM Coilless
Detector IF Subsystem
The MC13150 is a narrowband FM IF subsystem targeted at cellular and
other analog applications. Excellent high frequency performance is
achieved, with low cost, through use of Motorola's MOSAIC 1.5
TM
RF bipolar
process. The MC13150 has an onboard Colpitts VCO for Crystal controlled
second LO in dual conversion receivers. The mixer is a double balanced
configuration with excellent third order intercept. It is useful to beyond
200 MHz. The IF amplifier is split to accommodate two low cost cascaded
filters. RSSI output is derived by summing the output of both IF sections. The
quadrature detector is a unique design eliminating the conventional tunable
quadrature coil.
Applications for the MC13150 include cellular, CT1 900 MHz cordless
telephone, data links and other radio systems utilizing narrowband FM
modulation.
Linear Coilless Detector
Adjustable Demodulator Bandwidth
2.5 to 6.0 Vdc Operation
Low Drain Current: < 2.0 mA
Typical Sensitivity of 2.0
V for 12 dB SINAD
IIP3, Input Third Order Intercept Point of 0 dBm
RSSI Range of Greater Than 100 dB
Internal 1.4 k
Terminations for 455 kHz Filters
Split IF for Improved Filtering and Extended RSSI Range
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC13150FTA
TA = 40
to +85
C
LQFP24
MC13150FTB
TA = 40
to +85
C
LQFP32
AFTFilt
PIN CONNECTIONS
Mixer
Limiter
Limiter
Mixer
IF
IF
RSSIb
DETout
VEE2
DETGain
AFTout
RSSIb
DETout
VEE (N/C)
VEE2
DETGain
VEE (N/C)
AFTFilt
AFTout
MixOut
VCC1
VCC (N/C)
IFin
IFd1
VCC (N/C)
IFd2
IFout
Mixout
VCC1
IFin
IFd1
IFd2
IFout
1
2
3
4
5
6
18
17
16
15
14
13
7
8
9
10
11
12
24
23
22
21
20
19
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
V
CC2
LIM
in
LIM
d1
LIM
d2
BW
Adj
F Adj
Mix
in
V EE1
LO
e
LO
b
Enable
RSSI
Mix
in
V EE1
LO
e
LO
b
Enable
RSSI
V
CC
(N/C)
V
CC
(N/C)
V
CC2
LIM
in
LIM
d1
LIM
d2
BW
Adj
F Adj
V
CC
(N/C)
V
CC
(N/C)
Detector
Detector
9
10
13
14
15
16
11
12
32
31
28
27
26
25
30
29
LQFP24
LQFP32
Motorola, Inc. 1997
Rev 2
MC13150
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
Rating
Pin
Symbol
Value
Unit
Power Supply Voltage
2, 9
VCC(max)
6.5
Vdc
Junction Temperature
TJmax
+150
C
Storage Temperature Range
Tstg
65 to +150
C
NOTE:
1. Devices should not be operated at or outside these values. The "Recommended Operating
Limits" provide for actual device operation.
2. ESD data available upon request.
RECOMMENDED OPERATING CONDITIONS
Rating
Pin
Symbol
Value
Unit
Power Supply Voltage
TA = 25
C
40
C
TA
85
C
(See Figure 22)
2, 9
21, 31
VCC
VEE
2.5 to 6.0
0
Vdc
Input Frequency
32
fin
10 to 500
MHz
Ambient Temperature Range
TA
40 to +85
C
Input Signal Level
32
Vin
0
dBm
DC ELECTRICAL CHARACTERISTICS
(TA = 25
C, VCC1 = VCC2 = 3.0 Vdc, No Input Signal.)
Characteristics
Condition
Pin
Symbol
Min
Typ
Max
Unit
Total Drain Current
(See Figure 2)
VS = 3.0 Vdc
2 + 9
ITOTAL
1.7
3.0
mA
Supply Current, Power Down
(See Figure 3)
2 + 9
40
nA
AC ELECTRICAL CHARACTERISTICS
(TA = 25
C, VS = 3.0 Vdc, fRF = 50 MHz, fLO = 50.455 MHz,
LO Level = 10 dBm, see Figure 1 Test Circuit*, unless otherwise specified.)
Characteristics
Condition
Pin
Symbol
Min
Typ
Max
Unit
12 dB SINAD Sensitivity
(See Figure 15)
fmod = 1.0 kHz;
fdev =
5.0 kHz
32
100
dBm
RSSI Dynamic Range
(See Figure 7)
25
100
dB
Input 1.0 dB Compression Point
Input 3rd Order Intercept Point
(See Figure 18)
1.0 dB C. Pt.
IIP3
11
1.0
dBm
Coilless Detector Bandwidth
Adjust (See Figure 11)
Measured with No IF Filters
BW adj
26
kHz/
A
MIXER
Conversion Voltage Gain
(See Figure 5)
Pin = 30 dBm;
PLO = 10 dBm
32
10
dB
Mixer Input Impedance
SingleEnded
32
200
Mixer Output Impedance
1
1.5
k
LOCAL OSCILLATOR
LO Emitter Current
(See Figure 26)
29
30
63
100
A
IF & LIMITING AMPLIFIERS SECTION
IF and Limiter RSSI Slope
Figure 7
25
0.4
A/dB
IF Gain
Figure 8
4, 8
42
dB
IF Input & Output Impedance
4, 8
1.5
k
Limiter Input Impedance
10
1.5
k
Limiter Gain
96
dB
* Figure 1 Test Circuit uses positive (VCC) Ground.
MC13150
3
MOTOROLA ANALOG IC DEVICE DATA
AC ELECTRICAL CHARACTERISTICS (continued)
(TA = 25
C, VS = 3.0 Vdc, fRF = 50 MHz, fLO = 50.455 MHz,
LO Level = 10 dBm, see Figure 1 Test Circuit*, unless otherwise specified.)
Characteristics
Unit
Max
Typ
Min
Symbol
Pin
Condition
DETECTOR
Frequency Adjust Current
Figure 9,
fIF = 455 kHz
16
41
49
56
A
Frequency Adjust Voltage
Figure 10,
fIF = 455 kHz
16
600
650
700
mVdc
Bandwidth Adjust Voltage
Figure 12,
I15 = 1.0
A
15
570
mVdc
Detector DC Output Voltage
(See Figure 25)
23
1.36
Vdc
Recovered Audio Voltage
fdev =
3.0 kHz
23
85
122
175
mVrms
* Figure 1 Test Circuit uses positive (VCC) Ground.
Figure 1. Test Circuit
Mixer
In
1:4
Z Xformer
10
220 n
VEE1
LO Input
100 n
49.9
Enable
RSSI
RSSI
Buffer
Detector
Output
RL
100 k
RS
100 k
VEE2
100 p
220 n
10
100 k V18V17 = 0;
fIF = 455 kHz
I16
I15
220 n
49.9
Limiter
In
IF Amp
Out
1.5 k
220 n
49.9
IF
In
Mixer
Out
1.5 k
32
VEE1
Mixer
VCC1
Local
Oscillator
RSSI
Buffer
IF
VCC2
VEE2
Limiter
(6)
Detector
+
+
220 n
220 n
220 n
220 n
220 n
220 n
31
30
29
28
27
26
25
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
220 n
220 n
100 n
This device contains 292 active transistors.
MC13150
4
MOTOROLA ANALOG IC DEVICE DATA
MC13150 CIRCUIT DESCRIPTION
General
The MC13150 is a very low power single conversion
narrowband FM receiver incorporating a split IF. This device
is designated for use as the backend in analog narrowband
FM systems such as cellular, 900 MHz cordless phones and
narrowband data links with data rates up to 9.6 k baud. It
contains a mixer, oscillator, extended range received signal
strength indicator (RSSI), RSSI buffer, IF amplifier, limiting IF,
a unique coilless quadrature detector and a device enable
function (see Package Pin Outs/Block Diagram).
Low Current Operation
The MC13150 is designed for battery and portable
applications. Supply current is typically 1.7 mAdc at 3.0 Vdc.
Figure 2 shows the supply current versus supply voltage.
Enable
The enable function is provided for battery powered
operation. The enabled pin is pulled down to enable the
regulators. Figure 3 shows the supply current versus enable
voltage, Venable (relative to VCC) needed to enable the
device. Note that the device is fully enabled at VCC 1.3 Vdc.
Figure 4 shows the relationship of enable current, Ienable to
enable voltage, Venable.
Mixer
The mixer is a doublebalanced four quadrant multiplier
and is designed to work up to 500 MHz. It has a single ended
input. Figure 5 shows the mixer gain and saturated output
response as a function of input signal drive and for 10 dBm
LO drive level. This is measured in the application circuit
shown in Figure 15 in which a single LC matching network is
used. Since the singleended input impedance of the mixer is
200
, an alternate solution uses a 1:4 impedance
transformer to match the mixer to 50
input impedance. The
linear voltage gain of the mixer alone is approximately 4.0 dB
(plus an additional 6.0 dB for the transformer). Figure 6
shows the mixer gain versus the LO input level for various
mixer input levels at 50 MHz RF input.
The buffered output of the mixer is internally loaded,
resulting in an output impedance of 1.5 k
.
Local Oscillator
The onchip transistor operates with crystal and LC
resonant elements up to 220 MHz. Series resonant, overtone
crystals are used to achieve excellent local oscillator stability.
3rd overtone crystals are used through about 65 to 70 MHz.
Operation from 70 MHz up to 200 MHz is feasible using the
onchip transistor with a 5th or 7th overtone crystal. To
enhance operation using an overtone crystal, the internal
transistor's bias is increased by adding an external resistor
from Pin 29 (in 32 pin QFP package) to VEE to keep the
oscillator on continuously or it may be taken to the enable pin
to shut it off when the receiver is disabled. 10 dBm of local
oscillator drive is needed to adequately drive the mixer
(Figure 6). The oscillator configurations specified above are
described in the application section.
RSSI
The received signal strength indicator (RSSI) output is a
current proportional to the log of the received signal
amplitude. The RSSI current output is derived by summing
the currents from the IF and limiting amplifier stages. An
external resistor at Pin 25 (in 32 pin QFP package) sets the
voltage range or swing of the RSSI output voltage. Linearity
of the RSSI is optimized by using external ceramic bandpass
filters which have an insertion loss of 4.0 dB. The RSSI circuit
is designed to provide 100+ dB of dynamic range with
temperature compensation (see Figures 7 and 23 which
show the RSSI response of the applications circuit).
RSSI Buffer
The RSSI buffer has limitations in what loads it can drive.
It can pull loads well towards the positive and negative
supplies, but has problems pulling the load away from the
supplies. The load should be biased at half supply to
overcome this limitation.
MC13150
5
MOTOROLA ANALOG IC DEVICE DATA
LO DRIVE (dBm)
VENABLE, ENABLE VOLTAGE (Vdc)
Figure 2. Supply Current
versus Supply Voltage
VENABLE, SUPPLY VOLTAGE (Vdc)
Figure 3. Supply Current
versus Enable Voltage
Figure 4. Enable Current
versus Enable Voltage
Figure 5. Mixer IF Output Level versus
RF Input Level
Figure 6. Mixer IF Output Level versus
Local Oscillator Input Level
Figure 7. RSSI Output Current
versus Input Signal Level
2.0
1.6
1.2
0.8
0.4
0
1.5
2.5
3.5
4.5
5.5
6.5
7.5
TA = 25
C
MIXER IF OUTPUT
LEVEL
(dBm)
MIXER IF OUTPUT
LEVEL
(dBm)
VENABLE, ENABLE VOLTAGE (Vdc)
102
0.5
103
104
105
106
107
108
109
1010
0.7
0.9
1.1
1.3
1.5
VCC = 3.0 Vdc
TA = 25
C
VENABLE Measured
Relative to VCC
70
60
50
40
30
20
10
0
10
0
0.4
0.8
1.2
1.6
2.0
RF INPUT LEVEL (dBm)
SIGNAL INPUT LEVEL (dBm)
VCC = 3.0 Vdc
TA = 25
C
20
10
0
10
20
30
50
50
40
30
20
10
0
40
VEE = 3.0 Vdc
TA = 25
C
fRF = 50 MHz; fLO = 50.455 MHz
LO Input Level = 10 dBm
(100 mVrms)
(Rin = 50
; Rout = 1.4 k
20
0
20
40
80
60
60
50
40
30
20
10
0
VEE = 3.0 Vdc
TA = 25
C
fRF = 50 MHz; fLO = 50.455 MHz
Rin = 50
; Rout = 1.4 k
RF In = 0 dBm
20 dBm
40 dBm
50
40
30
20
0
10
120
100
80
60
40
20
0
VCC = 3.0 Vdc
f = 50 MHz
fLO = 50.455 MHz
455 kHz
Ceramic Filter
See Figure 15
I SUPPL
Y
, SUPPL
Y
CURRENT
(mA)
I SUPPL
Y
, SUPPL
Y
CURRENT
(A)
IA
)
ENABLE
, ENABLE CURRENT
(
RSSI OUTPUT
CURRENT
(
A
)
10
20
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