Datasheet MC1490P Datasheet (Motorola)

 

The MC1490 is an integrated circuit featuring wide–range AGC for use in RF/IF amplifiers and audio amplifiers over the temperature range, –40° to +85°C.

• High Power Gain:50 dB Typ at 10 MHz

45 dB Typ at 60 MHz 35 dB Typ at 100 MHz

• Wide Range AGC: 60 dB Min, DC to 60 MHz

• 6.0 V to 15 V Operation, Single Polarity Supply

• See MC1350D for Surface Mount

Order this document by MC1490/D



WIDEBAND AMPLIFIER

WITH AGC

SEMICONDUCTOR

TECHNICAL DATA

MAXIMUM RATINGS

Power Supply Voltage V AGC Supply V Input Differential Voltage V Operating Temperature Range T Storage Temperature Range T Junction Temperature T

(TA = +25°C, unless otherwise noted.)

Rating Symbol Value Unit

CC

AGC

ID

A

stg

J

+18 Vdc

V

CC

5.0 Vdc

–40 to +85 °C

–65 to +150 °C

+150 °C

ORDERING INFORMATION

Device

MC1490P TA = –40° to +85°C Plastic

Operating

Temperature Range Package

Representative Schematic Diagram

2

V

CC

1.5 k

V

AGC

(–) (+)

70

5

470

2.0 k

4

Inputs

6

66

5.0 k

1.1 k

Pins 3 and 7 should both be connected to circuit ground.

1.1 k

470

5.0 k

8.4 k

1.4 k

5.6 k

12.1 k5.5 k

2.8 k

1.9k

200

Substrate

45

200

7

200

3

2.8 k

Vdc

8

(+) Outputs

(–)

1

8

1

P SUFFIX

PLASTIC PACKAGE

CASE 626

PIN CONNECTIONS

Output

1

(–)

2

V

CC

GND

Inverting

Parameter Symbol 30 60 Unit

Input Reflection Coefficient

Output Reflection Coefficient

Forward Transmission Coefficient

Reverse Transmission Coefficient

4

Input

SCATTERING PARAMETERS

(VCC = +12 Vdc, TA = +25°C, Zo = 50 Ω)

3

(Top View)

|S11|

θ11

|S22|

θ22

|S21|

θ21

S

12

θ12

–+

0.95 –7.3

0.99 –3.0

16.8 128

0.00048

84.9

8

7

6

5

f = MHz

Typ

Output (+)

Substrate Ground

Noninverting Input

AGC Input

0.93 –16–deg

0.98

–5.5–deg

14.7

64.3–deg

0.00092

79.2–deg

MOTOROLA ANALOG IC DEVICE DATA

 Motorola, Inc. 1996 Rev 5

1

MC1490

ELECTRICAL CHARACTERISTICS

Characteristic

Power Supply Current Drain – I AGC Range (AGC) 5.0 V Min to 7.0 V Max 19 M Output Stage Current (Sum of Pins 1 and 8) – I Single–Ended Power Gain RS = RL = 50 Ω 19 G Noise Figure RS = 50 Ohms 19 NF – 6.0 – dB Power Dissipation – P

Figure 1. Unneutralized Power Gain versus

Frequency (T uned Amplifier, See Figure 19)

70

VCC = 12 Vdc

60 50 40 30 20

(SINGLE–ENDED OUTPUT)

, UNNEUTRALIZED GAIN (dB)

P

10

G

0

10

20 50 100 200

f, FREQUENCY (MHZ)

(VCC = 12 Vdc, f = 60 MHz, BW = 1.0 MHz, TA = 25°C)

Figure Symbol Min Typ Max Unit

CC

AGC

O

P

D

Figure 2. V oltage Gain versus Frequency

(Video Amplifier, See Figure 20)

50

40

30

20

10

, SINGLE–ENDED VOLTAGE GAIN (dB)

C

A

0

0.1 1.0 10 100 1000

– – 17 mA

–60 – – dB

4.0 – 7.5 mA 40 – – dB

– 168 204 mW

VCC = 12 VdcRL = 1.0 k

RL = 100

Ω

RL = 10

Ω

f, FREQUENCY (MHZ)

Figure 3. Dynamic Range: Output Voltage versus

Input V oltage (Video Amplifier, See Figure 20)

10

VCC = 12 Vdc

5.0 V

= 0 V

5(AGC)

f = 1.0 MHz

1.0

0.5

0.1

, OUTPUT VOLTAGE (V RMS)

0.05

O

V

0.01

0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100

RL = 1.0 k

100

Ω

en, INPUT VOLTAGE (mVRMS)

10

Ω

2

Figure 4. V oltage Gain versus Frequency

(Video Amplifier, See Figure 20)

50

VCC = 6.3 Vdc

40

30

20

10

, SINGLE VOLTAGE GAIN (dB)

V

A

0

0.3 0.5 1.0 3.0 5.0 10 30 50 100 300

RL = 1.0 k

100

Ω

f, FREQUENCY (MHZ)

MOTOROLA ANALOG IC DEVICE DATA

MC1490

Figure 5. V oltage Gain and Supply Current versus

Supply V oltage (Video Amplifier, See Figure 20)

45

f = 1.0 MHz

40

Rl = 1.0

Ω

A

V

35 30 25

I

CC

20 15

10

, SINGLE–ENDED VOLTAGE GAIN (dB)

V

A

5.0 0 2.0 4.0 6.0 8.0 10 12 14 16

VCC, SUPPLY VOLTAGE (V)

Figure 7. T ypical Gain Reduction

versus AGC Current

0 10 20

100 < R 30 40

50

, GAIN REDUCTION (dB)

R

60

G

70 80

–40 –20 0 20 40 60 80 100 120 140 160

I

AGC CURRENT (µA)

AGC

< 100 k

24 21

18 15 12

9.0

6.0

3.0 0

Figure 6. T ypical Gain Reduction

versus AGC Voltage

0

10 20

V

R(AGC)

R

AGC

30 40

50

, GAIN REDUCTION (dB)

R

60

G

, SUPPLY CURRENT (mAdc)

C

I

70

R

AGC

= 0

R

= 5.6 k

Ω

AGC

Ω

80

0 3.0 6.0 9.0 12 15 18 21 24 27 30

V

AGC VOLTAGE (Vdc)

R(AGC),

Figure 8. Fixed T uned Power Gain Reduction versus

T emperature (See Test Circuit, Figure 19)

50 40 30 20 10

,POWER GAIN (dB)

0

p

G

–10 –20

5.0 5.2 5.4 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0

VCC = 12 Vdc f = 60 MHz

R

= 5.6 k

AGC

V

R(AGC),

Ω

+75°C

AGC VOLTAGE (Vdc)

5

R

AGC

0°C

+125°C

MC1490P

= 100 k

+25°C

–55°C

Ω

Figure 9. Power Gain versus Supply V oltage

(See T est Circuit, Figure 19)

80 70 60

f = 60 MHz

50 40 30

, POWER GAIN (dB)

p

20

G

P

10

0

0 2.0 4.0 6.0 8.0 10 12 14 16

VCC, POWER SUPPLY VOLTAGE (V)

MOTOROLA ANALOG IC DEVICE DATA

Figure 10. Noise Figure versus Frequency

10

9.0

8.0

7.0

6.0

5.0

4.0

3.0

NF, NOISE FIGURE (dB)

2.0

1.0 0

15 20 25 30 35 40 50 60 70 80 90 100

f, FREQUENCY (MHz)

RS Optimized

for minimum NF

150

3

MC1490

Figure 11. Noise Figure versus

Source Resistance

20 18

VCC = 12 Vdc

16 14

12 10

8.0

6.0

NF, NOISE FIGURE (dB)

4.0

2.0 0

100 200 400 600 1.0 k 2.0 k 4.0 k 10 k

RS, SOURCE RESISTANCE (Ω)

f = 105 MHz

f = 60 MHz

f = 30 MHz

Figure 13. Harmonic Distortion versus AGC Gain

Reduction for AM Carrier (For Test Circuit, See Figure 14)

40

f = 10.7 MHz Modulation: 90 % AM, fm = 1.0 kHz

35

Load at Pin 8 = 2.0 k EO = peak–to–peak envelope of

30

modulated 10.7 MHz carrier at Pin 8

25 20 15

MODULA TION (%)

10

5.0

HARMONIC DISTORTION IN DETECTED

0

01020304050607080

40 35 30 25 20 15

NOISE FIGURE (dB)

10

5 0

Ω

EO = 2400 mVpp

GR, GAIN REDUCTION (dB)

Figure 12. Noise Figure versus

AGC Gain Reduction

f = 30 MHz BW = 1.0 MHz

Test circuit has tuned input providing a source resistance optimized for best noise figure.

0 –10 –20 –30 –40 –50 –60 –70 –80

GR, GAIN REDUCTION (dB)

760 mVpp

240 mVpp

Figure 14. 10.7 MHz Amplifier Gain ] 55 dB, BW ] 100 kHz

6 5

MC1490P

4

3

7

36 pF

8

L2

1

RFC

2

L2 = 20 turns, #22 AWG wire

on a T12–44 micro metal Toroid core (–100 pF)

MOTOROLA ANALOG IC DEVICE DATA

0.0020.002

50

Ω

Load

+12 Vdc

0.002

V

AGC

10.7 MHz

Ω

Source)

(50

L1 = 24 turns, #22 AWG wire

5.6 k

82 pF

50–150 pF

on a T12–44 micro metal Toroid core (–124 pF)

L1

4

MC1490

Figure 15. S11 and S22, Input and Output

Reflection Coefficient

Figure 16. S11 and S22, Input and Output

Reflection Coefficient

Figure 17. S21, Forward Transmission

Coefficient (Gain)

80 MHz

70 MHz

30 MHz

60 MHz

50 MHz

40 MHz

20 MHz

10 MHz

10

5.0

10

15

100 MHz

120 MHz

150 MHz

200 MHz

Figure 18. S12, Reverse Transmission

Coefficient (Feedback)

MOTOROLA ANALOG IC DEVICE DATA

5

MC1490

Figure 19. 60 MHz Power Gain T est Circuit Figure 20. Video Amplifier

0.0001

µ

Input

(50

F

V

AGC

V

R(AGC)

6

5

4

C2

L1

Ω

)

C1

R

AGC

L1 = 7 turns, #20 AWG wire, 5/16″ Dia.,5/8″long L2 = 6 turns, #14 AWG wire, 9/16 C1,C2,C3 = (1–30) pF C4 = (1–10) pF

Shield

7

MC1490P

3

2

0.001

″

Dia.,3/4″long

Figure 21. 30 MHz Amplifier

(Power Gain = 50 dB, BW [ 1.0 MHz)

µ

F

0.002

(1 – 30) pF

Input

(50

Ω

)

38 pF

T1: Primary = 17 turns, #20 AWG wire on a Toroid core, (T44–6). Secondary = 2 turns, #20 AWG wire.

L1

V

AGC

5.6 k

0.002 µF

V

R(AGC)

L1 = 12 turns, #22 AWG wire on a Toroid core,

(T37–6 micro metal or equiv).

6 5

4

7

MC1490P

3

8

1

2

1 – 10 pF

µ

10

+12 Vdc

C3

H

0.001

µ

F

1.0

C4

Output (50

Ω

8

L2

1

µ

F

)

+12 Vdc

V

R(AGC)

V

R(AGC)

10 k

5.6 k

1.0

e

i

0.001

F

7

6

µ

MC1490P

F

5

4

3

µ

F

2

1.0 µF

0.001

8

1

µ

F

e

o

R

L

+12 Vdc

Figure 22. 100 MHz Mixer

V



6.0 V

C2

T1

RL = 50

Ω

Input from

local oscillator

(70 MHz)

Signal Input

(100 MHz)

(1 – 30) pF

AGC

7

L1

0.002

5 6 4

3

µ

MC1490P

2

F

0.002 µF

″

, ID Dia., 5/8″ long

8

1

100

(1 – 10) pF

L1 = 5 turns, #16 AWG wire, 1/4 L2 = 16 turns, #20 AWG wire on a Toroid core, (T44–6).

L2

(1 – 10) pF (1 – 30) pF

IF Output

(30 MHz)

+12 Vdc

10

µ

H

Figure 23. Two–Stage 60 MHz IF Amplifier (Power Gain [ 80 dB, BW [ 1.5 MHz)

V

R(AGC)

5.1 k

Input

(50

T1: Primary Winding = 15 turns, #22 AWG wire, 1/4″ ID Air Core

24 pF

Ω

)

200 µH

(1–10) pF

µ

F

0.002

Secondary Winding = 4 turns, #22 AWG wire, Coefficient of Coupling [ 1.0

4 5

6

+12 Vdc

Shield

7

8

MC1490P MC1490P

(1–10) pF

1

2

3

RFC

10

µ

H

6

10 k

(1–10) pF

T1

1.0 k

Shield

0.002

µ

F

39 pF

0.002

T2: Primary Winding = 10 turns, #22 AWG wire, 1/4″ ID Air Core

Secondary Winding = 2 turns, #22 AWG wire, Coefficient of Coupling [ 1.0

7

4 5

6

3

µ

F

8

(1–10) pF

1

2

0.001 µF

RFC

T2

Output

(50

MOTOROLA ANALOG IC DEVICE DATA

Ω

)

DESCRIPTION OF SPEECH COMPRESSOR

F

MC1490

T able 1. Distortion versus Frequency

The amplifier drives the base of a PNP transistor operating common–emitter with a voltage gain of approximately 20. The control R1 varies the quiescent Q point of this transistor so that varying amounts of signal exceed the level Vr. Diode D1 rectifies the positive peaks of Q1’s output only when these peaks are greater than Vr ] 7.0 V. The resulting output is filtered by Cx, Rx.

Rx controls the charging time constant or attack time. Cx is involved in both charge and discharge. R2 (the 150 kΩ and input resistance of the emitter–follower Q2) controls the decay time. Making the decay long and attack short is accomplished by making Rx small and R2 large. (A Darlington emitter–follower may be needed if extremely slow decay times are required.)

The emitter–follower Q2 drives the AGC Pin 5 of the MC1490P and reduces the gain. R3 controls the slope of signal compression.

Figure 24. Speech Compressor

+12 V

requency

100 Hz 3.5% 12% 15% 27% 300 Hz 2% 10% 6% 20%

1.0 kHz 1.5% 8% 3% 9% 10 kHz 1.5% 8% 1% 3% 100 kHz 1.5% 8% 1% 3%

Notes: (1) Decay = 300 ms (3) Decay = 20 ms

(2) Cx = 7.5 µF (4) Cx = 0.68 µF

25 µF

0.001

1.0 k

Distortion Distortion

10 mV ei100 mV ei10 mV ei100 mV e

Notes 1 and 2 Notes 3 and 4

Attack = 20 ms Attack = 3.0 ms

Rx = 0 (Short) Rx = 1.5 kΩ

i

Input

R3 15 k

15

µ

F

15

+12 V

Q2

2N3904

4.7 k 150 k

1.0 k

2.2 k220

33 k

R1

100 k

+12 V+12 V

10 µF

10

µ

Output

F

V

r

2

5 4

6

µ

F

MC1490P

7

R2

R

C

x

1

x

8

3

Q1

2N3906

D1

6.8 k

MOTOROLA ANALOG IC DEVICE DATA

7

NOTE 2

–T–

SEATING PLANE

H

58

–B–

14

F

–A–

C

N

D

K

G

0.13 (0.005) B

M

T

MC1490

OUTLINE DIMENSIONS

P SUFFIX

PLASTIC PACKAGE

CASE 626–05

ISSUE K

L

J

M

A

M

NOTES:

1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL.

2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS).

3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.

DIM MIN MAX MIN MAX

A 9.40 10.16 0.370 0.400 B 6.10 6.60 0.240 0.260 C 3.94 4.45 0.155 0.175 D 0.38 0.51 0.015 0.020 F 1.02 1.78 0.040 0.070 G 2.54 BSC 0.100 BSC H 0.76 1.27 0.030 0.050 J 0.20 0.30 0.008 0.012 K 2.92 3.43 0.115 0.135 L 7.62 BSC 0.300 BSC M ––– 10 ––– 10 N 0.76 1.01 0.030 0.040

INCHESMILLIMETERS

__

Motorola 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, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” 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 of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications 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 Motorola and 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 and are 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; JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center,

P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315

MFAX: RMF AX0@email.sps.mot.com – TOUCHT ONE 602–244–6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, INTERNET: http://Design–NET.com 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298

8

◊

MOTOROLA ANALOG IC DEVICE DATA

MC1490/D

*MC1490/D*