Motorola MC1490P Datasheet

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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

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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