MOTOROLA MC12002

Order this document by MC12002/D
The MC12002 is a double balanced analog mixer, including an input
amplifier feeding the mixer carrier port and a temperature compensated bias
regulator. The input circuits for both the amplifier and mixer are differential
amplifier circuits. The on-chip regulator provides all of the required biasing.
This circuit is designed for use as a balanced mixer in high-frequency
wide-band circuits. Other typical applications include suppressed carrier and
amplitude modulation, synchronous AM detection, FM detection, phase
detection, and frequency doubling, at frequencies up to UHF.
ANALOG MIXER
SEMICONDUCTOR
TECHNICAL DATA
14
1
P SUFFIX
PLASTIC PACKAGE
CASE 646
PIN CONNECTIONS
Regulator
Bypass
1
14
VCC
Local Oscillator
Input
2
13
Resistor Load
Local Oscillator
Input
3
12
Data Output
Alternate Signal
Input
4
11
Data Output
Null Adjust
5
10
Regulator
Bypass
Null Adjust
6
9
Mixer Signal
Input
VEE
7
8
Mixer Signal
Input
Figure 1. Logic Diagram
Local
Oscillator
Inputs
2
12
VB
VR
8
Signal
Inputs
Carrier
Port
Amplifier
3
Output
Mixer
Signal
Port
VR VB
9
11
(Top View)
Bias
Regulator
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC12002P
TA = –30° to +85°C
Plastic
 Motorola, Inc. 1997
Rev 5
MC12002
TEST VOLTAGE VALUES
Volts
VIHmax
VILmin
VCC
+2.9
+2.0
+5.0
ELECTRICAL CHARACTERISTICS
VOLTAGE APPLIED TO PINS
LISTED BELOW
Test Limits
Ch
Characteristic
i i
Power Supply Drain
Input Current
Output Current
Pi
Pin
–30°C
Under
Symbol
S
b l Test Min Max
+25°C
Min
+85°C
Max
Min
Max
Unit
VIHmax
VILmin
14
—
—
—
16
—
—
mAdc
—
—
11,12,14 5,6,7
2
3
8
9
—
—
—
—
—
—
—
—
—
—
—
—
0.75
0.75
0.75
0.75
—
—
—
—
—
—
—
—
mAdc
mAdc
mAdc
mAdc
2
3
8
9
—
—
—
—
11,12,14
11,12,14
11,12,14
11,12,14
5,6,7
5,6,7
5,6,7
5,6,7
IinL
2
3
8
9
—
—
—
—
—
—
—
—
– 0.7
– 0.7
– 0.7
– 0.7
—
—
—
—
—
—
—
—
—
—
—
—
mAdc
mAdc
mAdc
mAdc
—
—
—
—
2
3
8
9
11,12,14
11,12,14
11,12,14
11,12,14
5,6,7
5,6,7
5,6,7
5,6,7
IO1
11
12
—
—
—
—
0.7
0.7
1.3
1.3
—
—
—
—
mAdc
mAdc
—
—
—
—
11,12,14
11,12,14
7
7
IO2
11
12
—
—
—
—
2.1
2.1
3.9
3.9
—
—
—
—
mAdc
mAdc
—
—
—
—
11,12,14 5,6,7
11,12,14 5,6,7
Iout
11
11
12
12
—
—
—
—
—
—
—
—
4.2
4.2
4.2
4.2
7.8
7.8
7.8
7.8
—
—
—
—
—
mAdc
mAdc
mAdc
mAdc
2,9
3,8
2,8
3,9
—
—
—
—
11,12,14
11,12,14
11,12,14
11,12,14
–100
–200
+100
+200
–100
–200
+100
+200
µAdc
µAdc
—
—
—
—
11,12,14
7
11,12,14 5,6,7
2.53 2.32
2.52
2.3
2.5
590 400
600
410
610
415 285
425
295
435
415 285
425
295
435
1.46 1.185 1.385 1.105 1.305
Vdc
mVdc
mVdc
mVdc
Vdc
—
—
—
—
—
—
—
—
—
—
11,12,14 5,6,7
11,12,14 5,6,7
11,12,14
7
11,12,14
7
11,12,14 5,6,7
∆IO1
∆IO2
Bias Voltage
VBias
11,12 –100 +100
11,12 –200 +200
1
4
5
6
10
2.33
390
275
275
1.26
Pulse Pulse
In
Out –3.0 V
(Frequency =
100 MHz) *Note
NOTE:
2
G d
Gnd
ICC
IinH
Differential Current
AC Gain (See Figure 1)
VCC
AV
Gnd
5,6,7
5,6,7
5,6,7
5,6,7
11
—
—
5.0
—
—
—
V/V
2
11
9
14
VEE
7
11
—
—
0.28
—
—
—
V/V
8
11
3
14
7
*Note: AC Gain is a function of collector load impedance.
MOTOROLA RF/IF DEVICE DATA
MC12002
Figure 2. Analog Mixer Circuit Schematic
3
2
14
11
12
13
133
67
67
67
67
493
1k
1k
1k
1k
318
100
880
167
167
167
663
167
631
333
8
4
350
333
6
5
9
10
1
7
Figure 3. AC Gain Test
0.1 µf
2
12
Signal A
0.1 µf
Local Oscillator
Inputs
3
50
Signal B
Note 1
0.1
0.1 µf
µf
9
Mixer
Inputs
Reg. Bypass
1
0.1 µF
Note 1
0.1 µF
Null
Adj.
VEE
10
7
Signal A = 30 mVpp
Signal B = 300 mVpp
VCC
6
5
14
0.1
µF
0.1 µf
Note 1:
VIL = –3.0 V on pin 3 when pin 8 is under test.
VIL = –3.0 V on pin 9 when pin 2 is under test.
11
8
0.1 µf
50
Outputs
10 µF
–5.0V
All input and output
cables to the scope are
equal lengths of 50-ohm
coaxial cable.
The unused output is
connected to a 50-ohm
resistor to ground.
Freq. = 100 MHz
MOTOROLA RF/IF DEVICE DATA
3
MC12002
Figure 4. Carrier Feedthrough Test Circuits
Signal A
Input (Pin 2)
Output (Pin12)
Output (Pin 11)
Signal B Input (Pin 8)
Output (Pin 12)
Output (Pin 11)
Tektronix
454 and 568
Oscilloscopes
1.0 µf
2
12
Local Oscillator
Inputs
3
Outputs
11
1.0 µf
Hewlett Packard
651A and 3300B
100 kHz to 100 MHz
@ 30 mVpp
Sampling Volt meter
Hewlett Packard
3406A or Equiv.
Mixer
Inputs
8
1.0 µf
Reg.
Bypass
9
1
10
0.1 µf
0.1 µf
Null
Adjust
VEE
7
5
6
133
133
VCC
14
50
0.1 µf
+5.0 V
Notes:
Test 1 – Adjust potentiometer for carrier null at fc = 100 kHz.
Test 2 – Connect pins 5 and 6 to Gnd.
4
All Input and output
cables to the scope are
equal lengths of 50-ohm
coaxial cable.
MOTOROLA RF/IF DEVICE DATA
MC12002
Figure 6. Carrier Feedthrough versus Frequency
(Test 2)
V CFT, CARRIER OUTPUT VOLTAGE (mV [rms])
V CFT, CARRIER OUTPUT VOLTAGE (mV[rms])
Figure 5. Carrier Feedthrough versus Frequency
(Test 1)
5.0
4.0
3.0
2.0
1.0
0.0
0.1
1.0
10.0
100.0
5.0
4.0
3.0
2.0
1.0
0.0
0.1
1.0
fc, CARRIER FREQUENCY (MHz)
10.0
100.0
fc, CARRIER FREQUENCY (MHz)
Figure 7. Carrier Suppression Test Circuit
Hewlett Packard 3406A
Sampling Voltmeter
0.1 µf
Hewlett
Packard
TEE 11536A
1.0 µf
50
2
3
9
0.1 µf
Outputs
11
50
8
Hewlett Packard
651A and 3300B
100 kHz to 400 MHz
@ 30 mV RMS.
Hewlett Packard
651A 10 kHz
@ 150 mV R.M.S.
50
12
Local Oscillator
Inputs
50
Reg.
Bypass
Mixer
Inputs
Null
Adjust
VEE
1.0µf
1
1.0 µf
10
7
5
6
X 50
Atten.
50
VCC
14
All input and output
cables to the scope are
equal lengths of 50-ohm
coaxial cable.
1.0 µf
50
– 5.0 V
–
+
– 5.0 V
Notes:
Test 1 – Adjust potentiometer for carrier null @ f c = 100 kHz
Test 2 – Connect pins 5 and 6 to –5.0 volts
Test 3 – Adjust potentiometer for carrier null @ 25° C
Figure 9. Carrier Suppression versus Frequency
(Test 2)
+40
+40
+30
+30
CARRIER SUPPRESSION (dB)
CARRIER SUPPRESSION (dB)
Figure 8. Carrier Suppression versus Frequency
(Test 1)
+20
+10
0
–10
–20
–30
–40
+10
0
–10
–20
–30
–40
–50
–50
–60
0.1
+20
1.0
10.0
100.0
fc, CARRIER FREQUENCY (MHz)
MOTOROLA RF/IF DEVICE DATA
1.0 K
–60
0.1
1.0
10.0
100.0
1.0 K
fc, CARRIER FREQUENCY (MHz)
5
MC12002
Figure 10. Carrier Suppression versus Temperature
CARRIER SUPPRESSION (dB)
–10
–20
–30
fc = 10 MHz @ 30 mvrms
fs = 10 KHz @ 150 mvrms
–40
–50
–60
–55
–25
0
+25
+50
+75
+100
+125
TA, AMBIENT TEMPERATURE (°C)
Figure 11. Output Offset Current (I00) versus Temperature
1.0 µf
2
1.0 µf
12
µA
Local Oscillator
Inputs
3
I12
I
Outputs
1.0 µf
8
1.0 µf
11
Mixer
Inputs
Reg.
Bypass
9
1
10
0.1µf
I11
I
µA
Null
Adjust
VEE
7
0.1 µf
5
VCC
14
6
IOO = I11 – I12
0.1 µf
–5.0 V
Notes:
Test 1 – Pins 5 and 6 left open
Test 2 – Pins 5 and 6 are tied to –5.0 volts
Figure 12. Output Offset Current versus Temperature
Figure 13. Typical Input Impedance versus Frequency
(No Circuit)
31
+100
R L RESISTANCE (Ohms)
+50
350
TEST 1
0.0
–50
TEST 2
–25
0
+25
+50
+75
TA, AMBIENT TEMPERATURE (°C)
6
250
TYPICAL INPUT IMPEDANCE
vs
FREQUENCY
26
R
16
Zin
21
C
200
11
6
150
100
R
C
– LOCAL OSCILLATOR –
AND SIGNAL INPUTS
1
50
–100
–55
300
R(OHMS)
C, CAPACITANCE (pF)
I OO, OUTPUT OFFSET CURRENT ( µ A)
400
+100
+125
200
400
600
800
1000
f, FREQUENCY (MHZ)
MOTOROLA RF/IF DEVICE DATA
MC12002
OUTLINE DIMENSIONS
P SUFFIX
PLASTIC PACKAGE
CASE 646–06
ISSUE M
14
8
1
7
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
B
A
F
L
N
C
–T–
SEATING
PLANE
J
K
H
G
D 14 PL
0.13 (0.005)
MOTOROLA RF/IF DEVICE DATA
M
DIM
A
B
C
D
F
G
H
J
K
L
M
N
INCHES
MIN
MAX
0.715
0.770
0.240
0.260
0.145
0.185
0.015
0.021
0.040
0.070
0.100 BSC
0.052
0.095
0.008
0.015
0.115
0.135
0.290
0.310
–––
10_
0.015
0.039
MILLIMETERS
MIN
MAX
18.16
18.80
6.10
6.60
3.69
4.69
0.38
0.53
1.02
1.78
2.54 BSC
1.32
2.41
0.20
0.38
2.92
3.43
7.37
7.87
–––
10_
0.38
1.01
M
7
MC12002
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
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8
◊
MC12002/D
MOTOROLA RF/IF DEVICE
DATA