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The MC1350 is an integrated circuit featuring wide range AGC for use as
an IF amplifier in radio and TV over an operating temperature range of 0° to+75°C.
• Power Gain: 50 dB Typ at 45 MHZPower Gain: 50 dB Typ at 58 MHZ• AGC Range: 60 dB Min, DC to 45 MHz

IF AMPLIFIERSEMICONDUCTORTECHNICAL DATA

• Nearly Constant Input & Output Admittance over the Entire AGC Range• Y21 Constant ( –3.0 dB) to 90 MHz• Low Reverse Transfer Admittance: < < 1.0 µmho Typ• 12 V Operation, Single–Polarity Power Supply

P SUFFIX
PLASTIC PACKAGE
CASE 626

81

MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.)
SymbolValueUnit

Power Supply Voltage

V++18Vdc

Output Supply Voltage

V1, V8+18Vdc

AGC Supply Voltage

VAGC

V+Vdc

Differential Input Voltage

Vin

5.0VdcPower Dissipation (Package Limitation)
Plastic Package
Derate above 25°C

PD
625
5.0mWmW/°C

Operating Temperature Range

TA0 to +75°CRating

D SUFFIX
PLASTIC PACKAGE
CASE 751(SO–8)

81

ORDERING INFORMATIONOperating
Temperature Range

DeviceMC1350P

TA = 0° to +75°C

MC1350D

Package
Plastic DIP
SO–8Figure 1. Typical MC1350 Video IF Amplifier and MC1330 Low–Level Video Detector Circuit
0.002µF

470

2200.1µF

0.002µF+18Vdc18V
Auxiliary Video
Output
10V

3.3k
68pF

0.001µF
432221765Primary Videoand Sound Output
7.7V

4T150

3.9k

MC1330AP

MC13505.0k67820pF

50.002 µ F

00.002 µ F

45MHzInput

12pF

8333pF

21AFT Output
3.9k

L1T15″≈16AGC1″56TurnsTurns
4All windings #30 AWG tinned nylon acetatewire tuned with Carbonyl E or J slugs.

3″1610Turns

L1 wound with #26 AWG tinned nylon
acetate wire tuned by distorting winding.

 Motorola, Inc. 1996

MOTOROLA ANALOG IC DEVICE DATA

3″
16Rev 31

MC1350
ELECTRICAL CHARACTERISTICS (V+ = +12 Vdc, TA = +25°C, unless otherwise noted.)
SymbolCharacteristics

Min

TypMax

Unit

60

68–

dB

–
46––

48
50
58
62

––––––

20
8.0––

AGC Range, 45 MHz (5.0 V to 7.0 V) (Figure 1)Power Gain (Pin 5 grounded via a 5.1 kΩ resistor)f = 58 MHz, BW = 4.5 MHz
See Figure 6(a)f = 45 MHz, BW = 4.5 MHz
See Figure 6(a), (b)f = 10.7 MHz, BW = 350 kHz
See Figure 7
f = 455 kHz, BW = 20 kHz

ApdB

Maximum Differential Voltage Swing
0 dB AGC–30 dB AGC

VOOutput Stage Current (Pins 1 and 8)

I1 + I8

–

5.6

–

mA

Total Supply Current (Pins 1, 2 and 8)

IS–1417mAdc

Power DissipationPD–

168

204mW

Vpp

DESIGN PARAMETERS, Typical Values (V+ = +12 Vdc, TA = +25°C, unless otherwise noted.)
Frequency
Parameter

Symbol455 kHz

10.7 MHz

45 MHz58 MHzUnitSingle–Ended Input Admittance

g11
b11

0.31
0.022

0.36
0.50

0.39
2.30

0.5
2.75mmho

Input Admittance Variations with AGC(0 dB to 60 dB)∆g11∆b11––––

60
0––µmhoDifferential Output Admittance

g22
b22

4.0
3.0

4.4
11030390

60510µmho

Output Admittance Variations with AGC(0 dB to 60 dB)∆g22∆b22––––

4.090––µmho

Reverse Transfer Admittance (Magnitude)|y12|< < 1.0< < 1.0< < 1.0< < 1.0µmho

Forward Transfer Admittance
Magnitude
Angle (0 dB AGC)
Angle (–30 dB AGC)

|y21|
< y21
< y21160–5.0–3.0

160–20–18

200
–80
–69

180
–105–90mmho
Degrees
DegreesSingle–Ended Input Capacitance

Cin

7.2

7.2

7.4

7.6

pF

Differential Output Capacitance

CO1.2

1.2

1.3

1.6

pF

Figure 2. Typical Gain Reduction

Figure 3. Noise Figure versus Gain Reduction

IAGC = 0.1 mA
204060(Figures 6 and 7)
80
4.02

NOISE FIGURE (dB)

GAIN REDUCTION (dB)

0

IAGC = 0.2 mA

5.06.0
VAGC, SUPPLY VOLTAGE (V)

7.0222018161412108.06.058 MHz
45 MHz(Figure 6)010203040

GAIN REDUCTION (dB)

MOTOROLA ANALOG IC DEVICE DATAMC1350
GENERAL OPERATING INFORMATION
The input amplifiers (Q1 and Q2) operate at constantemitter currents so that input impedance remains
independent of AGC action. Input signals may be applied
single–ended or differentially (for ac) with identical results.
Terminals 4 and 6 may be driven from a transformer, but a dc
path from either terminal to ground is not permitted.
Figure 4. Circuit Schematic
AGC Amplifier Section

V+2(+)

1.47k
AGC
Input 70

8AGC action occurs as a result of an increasing voltage on
the base of Q4 and Q5 causing these transistors to conduct
more heavily thereby shunting signal current from theinterstage amplifiers Q3 and Q6. The output amplifiers aresupplied from an active current source to maintain constantquiescent bias thereby holding output admittance nearly
constant. Collector voltage for the output amplifier must besupplied through a center–tapped tuning coil to Pins 1 and 8.
The 12 V supply (V+) at Pin 2 may be used for this purpose,but output admittance remains more nearly constant if aseparate 15 V supply (V+ +) is used, because the basevoltage on the output amplifier varies with AGC bias.

V++
Output512.1k

5.53k

470

470

Q3

Q4Q5Q6

Figure 5. Frequency Response Curve(45 MHz and 58 MHz)

1(–)

2.0k
Q74 (–)
Q166

Q10Q8 45

1.4k

Inputs
Q22.8k

6 (+)

200

Q9200

2.8k

5.0k5.0k

5.6k
1.1k

1.1k

8.4k

1.9k
200

Scale: 1.0 MHz/cm

7Gnd

Input Amplifier Section

Bias Supplies

Output Amplifier Section

Figure 6. Power Gain, AGC and Noise Figure Test Circuits(a) 45 MHz and 58 MHz
0.001µF
Input
RS = 50Ω

0.001µF

C2L1C1LPLPInput

32

0.68µH.001

+12V
L1LP

1.5–20pF
0.001µF
4(b) Alternate 45 MHz+12V

0.1
OutputT1 RL = 50Ω

1RS = 50Ω

0.33µH

C14321RL = 50Ω
Output

MC1350MC135056785.1k

5.1k5675.1k8C2VAGC

VAGC *0.001µF

0.001

C30.001

0.001µF 0.001µF*Connect to ground for maximum power gain test.
All power supply chokes (Lp), are self–resonant at input frequency. LP ≥ 20 kΩ.
See Figure 5 for Frequency Response Curve.
L1 @ 45 MHz = 7 1/4 Turns on a 1/4″ coil form
L1 @ 58 MHz = 6 Turns on a 1/4″ coil form
T1 Primary Winding = 18 Turns on a 1/4″ coil form, center–tapped, #25 AWG
Secondary Winding = 2 Turns centered over Primary Winding @ 45 MHz= 1 Turn @ 58 MHzSlug = Carbonyl E or J

45 MHz

L1Ferrite Core14 Turns 28 S.W.G.

C1C2C35–25 pF
5–25 pF
5–25 pF

58 MHzL10.4 µH

Q ≥ 100

0.3 µHQ ≥ 100

T1

1.3 µH to 3.4 µH

Q ≥ 100 @ 2.0 µH

1.2 µH to 3.8 µH

Q ≥ 100 @ 2.0 µH

C150 pF to160 pF

8.0 pF to 60 pF

C28.0 pF to 60 pF

3.0 pF to 35 pF

MOTOROLA ANALOG IC DEVICE DATA

3

MC1350
Figure 7. Power Gain and AGC Test Circuit(455 kHz and 10.7 MHz)
Input
RS = 50Ω

Frequency
L112 VC2C1C3C44321T1C5Output
RS = 50Ω

MC13505.1k567C7C68VAGC **Grounded formaximum power gain.

Component

455 kHz10.7 MHzC1C2C3C4C5C8C7L1T1––
0.05 µF
0.05 µF
0.001 µF
0.05 µF
0.05 µF–
Note 180–450 pF
5.0–80 pF
0.001 µF
0.05 µF
36 pF
0.05 µF
0.05 µF
4.6 µF
Note 2NOTES: 1. Primary: 120 µH (center–tapped)
NOTES: 1. Qu = 140 at 455 kHzNOTES: 1. Primary: Secondary turns ratio
13NOTES: 2. Primary: 6.0 µH
NOTES: 2. Primary winding = 24 turns #36 AWGNOTES: 2. (close–wound on 1/4″ dia. form)
NOTES: 2. Core = Carbonyl E or J
NOTES: 2. Secondary winding = 1–1/2 turns #36 AWG, 1/4″ dia.
NOTES: 2. (wound over center–tap)[Figure 9. Forward Transfer Admittance500

4.0400b113.02.01.0∠ Y21 (–30 dB gain)

0300

–80

200–120
Y2120304050f, FREQUENCY (MHz)

70

100

1.01.0(Single–ended output
admittance exhibits
twice these values.)b220.6
0.40.2g220103.0 5.0
1020f, FREQUENCY (MHz)30–200100508.0
DIFFERENTIAL OUTPUT VOLTAGE (V)

0.82.0Figure 11. Differential Output Voltage

Figure 10. Differential Output Admittanceg 22 , b 22 (mmho)

–1600
10

7.0
6.0

V + + = 14 V

5.0
4.0
V + + = 12 V

3.0
2.0
1.0020304050f, FREQUENCY (MHz)4–40∠ Y21 (max gain)

100

g110

∠ Y 21 (DEGREES)

5.0| Y 21 | (mmhos)

g11 ,b11 (mmhos)

Figure 8. Single–Ended Input Admittance

7010001020304050GAIN REDUCTION (dB)

607080MOTOROLA ANALOG IC DEVICE DATAMC1350OUTLINE DIMENSIONS

8P SUFFIX
PLASTIC PACKAGE
CASE 626–05
ISSUE K

5NOTES:
1. DIMENSION L TO CENTER OF LEAD WHENFORMED PARALLEL.
2. PACKAGE CONTOUR OPTIONAL (ROUND ORSQUARE CORNERS).
3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.

–B–14

F
DIM
A
BC
DF
GH
JKL
M
N–A–NOTE 2L

C
J–T–N

SEATING
PLANE

DM

K

MILLIMETERSMINMAX
9.40
10.16
6.10
6.60
3.94
4.45
0.38
0.51
1.02
1.78
2.54 BSC
0.76
1.27
0.20
0.30
2.92
3.43
7.62 BSC–––
10_0.76
1.01

INCHESMIN
MAX
0.370
0.400
0.240
0.260
0.155
0.175
0.015
0.020
0.040
0.070
0.100 BSC
0.030
0.050
0.008
0.012
0.115
0.135
0.300 BSC–––
10_0.030
0.040

GH

0.13 (0.005) M T A

B M
D SUFFIX
PLASTIC PACKAGE
CASE 751–05(SO–8)
ISSUE N–A–8

M

NOTES:
1. DIMENSIONING AND TOLERANCING PERANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBARPROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.

5–B–
14X

P
0.25 (0.010) M B

4M

GR X 45 _C–T–
8X DK

0.25 (0.010) M T B

SEATINGPLANESA S

MOTOROLA ANALOG IC DEVICE DATA

M_F

JDIMABCDFGJKMPRMILLIMETERSMINMAX
4.80
5.00
3.80
4.00
1.35
1.75
0.35
0.490.40
1.25
1.27 BSC
0.18
0.25
0.10
0.25
0_7_5.80
6.20
0.25
0.50

INCHESMINMAX
0.189
0.196
0.150
0.157
0.054
0.068
0.014
0.019
0.016
0.049
0.050 BSC
0.007
0.009
0.004
0.009
0_7_
0.229
0.244
0.010
0.019

5MC1350Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
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, andspecifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights ofothers. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or otherapplications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorolaand its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola
was negligent regarding the design or manufacture of the part. Motorola andare registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
How to reach us:
USA / EUROPE / Locations Not Listed: Motorola Literature Distribution;
P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454

JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315

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51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

6◊*M1350/D*

MOTOROLA ANALOG IC DEVICEDATAMC1350/D

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