Datasheets ML1350 Datasheet

Legacy Device: Motorola MC1350

The ML1350 is an integrated circuit featuring wide range AGC for use as a linear IF amplifier in AM radio, shortwave, TV and instrumentation.

• Power Gain: 50 dB Typ at 45 MHz 50 dB Typ at 58 MHz

• AGC Range: 60 dB Min, DC to 45 MHz

• Nearly Constant Input & Output Admittance over the

Entire AGC Range

•

• Low Reverse Transfer Admittance: << 1.0 µmho Typical

• 12 V Operation, Single–Polarity Power Supply

• Operating Temperature Range TA= 0° to +75° C

Note: See ML1490 Similar Function

Constant (–3.0 dB) to 90 MHz

Y21

MAXIMUM RATINGS

Power Supply Voltage V

Output Supply Voltage V1, V

AGC Supply Voltage V

Differential Input Voltage V

Power Dissipation (Package Limitation)

Plastic Package Derate above

Operating Temperature Range T

(TA = +25°C, unless otherwise noted.)

Rating

25°C

Symbol Value Unit

+

AGC

in

P

D

A

8

0 to +75 °C

+18 Vdc

+

V

5.0 Vdc

625

5.0

ML1350 Monolithic IF Amplifier

P DIP = PP

8

1

SO 8 = -5P

PLASTIC PACKAGE

CASE 751

(SO–8)

CROSS REFERENCE/ORDERING INFORMATION

P DIP 8 MC1350P ML1350PP

SO 8 MC1350D ML1350-5P

Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE.

Vdc

mW

mW/°C

PLASTIC PACKAGE

CASE 626

8

MOTOROLA

1

LANSDALEPACKAGE

Figure 1. Typical ML1350 Video IF Amplifier and MC1330 Low–Level Video Detector Circuit

45MHz

Input

0.001µF

4

50

567

5.0k

AGC

0.002µF

ML1350

F

µ

0.002

470 220

µ

F

0.002

32 1

T1

8

F

µ

0.002

5

Turns

All windings #30 AWG tinned nylon acetate wire tuned with Carbonyl E or J slugs.

T1

20pF

5

≈

16

Turns

0.1

12pF

"

6

+18Vdc

µ

F

68pF

22

1

"

4

76 5 4

83 2 1

3.3k

MC1330AP

33pF

L1

Auxiliary Video

Output

3.9k

3

16

10

Turns

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

www.lansdale.comPage 1 of 6 Issue A

18V

10V

Primary Video

and Sound Output

7.7V

3.9k

0

AFT Output

"

3 16

"

ML1350

LANSDALE Semiconductor, Inc.

ELECTRICAL CHARACTERISTICS

Characteristics

AGC Range, 45 MHz (5.0 V to 7.0 V) (Figure 1) 60 68 – dB

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

Maximum Differential Voltage Swing

0 dB AGC –30 dB AGC

Output Stage Current (Pins 1 and 8) I1 + I

Total Supply Current (Pins 1, 2 and 8) I

Power Dissipation P

DESIGN PARAMETERS, Typical Values (V

Parameter Symbol 455 kHz 10.7 MHz 45 MHz 58 MHz Unit

Single–Ended Input Admittance g

Input Admittance Variations with AGC

(0 dB to 60 dB)

Differential Output Admittance g

Output Admittance Variations with AGC

(0 dB to 60 dB)

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

Forward Transfer Admittance

Magnitude Angle (0 dB AGC) Angle (–30 dB AGC)

Single–Ended Input Capacitance C

Differential Output Capacitance C

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

Symbol Min Typ Max Unit

A

p

V

O

8

S

D

+

= +12 Vdc, TA = +25°C, unless otherwise noted.)

11

b

11

∆g ∆b

22

b

22

∆g ∆b

|y21| < y < y

11 11

22 22

21 21

in

O

0.31

0.022

– –

4.0

3.0

– –

160 –5.0 –3.0

7.2 7.2 7.4 7.6 pF

1.2 1.2 1.3 1.6 pF

–

46

– –

– 5.6 – mA

– 14 17 mAdc

– 168 204 mW

Frequency

0.36

0.50

– –

4.4

110

– –

160 –20 –18

0.39

2.30

60

0

30

390

4.0 90

200 –80 –69

48 50 58 62

20

8.0

– – – –

– –

0.5

2.75

– –

60

510

– –

180

–105

–90

mmho

µmho

mmho Degrees Degrees

dB

V

pp

Figure 2. Typical Gain Reduction Figure 3. Noise Figure versus Gain Reduction

0

I

= 0.1 mA

20

40

60

GAIN REDUCTION (dB)

80

4.0 5.0 6.0 7.0

AGC

(Figures 6 and 7)

V

, SUPPLY VOLTAGE (V)

AGC

I

AGC

= 0.2 mA

22 20 18

16 14 12 10

NOISE FIGURE (dB)

8.0

6.0 0 10203040

58 MHz

45 MHz

(Figure 6)

GAIN REDUCTION (dB)

www.lansdale.comPage 2 of 6 Issue A

ML1350

LANSDALE Semiconductor, Inc.

GENERAL OPERATING INFORMATION

The input amplifiers (Q1 and Q2) operate at constant emitter 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

AGC

70

Input

5

4 ( – )

6 ( + )

5.0k

470

Inputs

Q1 Q266

1.1k

2.0k

1.1k

5.53k

470

Q6Q5Q3 Q4

1.4k

5.0k

5.6k

8.4k

7

Gnd

Input Amplifier Section Bias Supplies Output Amplifier Section

1.47k

12.1

1.9k

V+

k

Q7

2

(+)

8

V + +

Q845Q9

2.8k 200 200 2.8k

Output

1 ( – )

Q10

200

AGC 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 the interstage amplifiers Q3 and Q6. The output amplifiers are supplied from an active current source to maintain constant quiescent bias thereby holding output admittance nearly constant. Collector voltage for the output amplifier must be supplied 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 a separate 15 V supply (V+ +) is used, because the base voltage on the output amplifier varies with AGC bias.

Figure 5. Frequency Response Curve

(45 MHz and 58 MHz)

Scale: 1.0 MHz/cm

Figure 6. Power Gain, AGC and Noise Figure Test Circuits

(a) 45 MHz and 58 MHz

0.001

µ

Input

RS = 50

V

AGC

F

Ω

C2

0.001

µ

F

L1

C1

*

43 21

ML1350

56 785.1k

µ

F0.001µF

0.001

0.001µF

L

1.5–20pF

*Connect to ground for maximum power gain test.

All power supply chokes (Lp), are self–resonant at input frequency. LP See Figure 5 for Frequency Response Curve.

"

L1 @ 45 MHz = 7 1/4 Turns on a 1/4

L1 @ 58 MHz = 6 Turns on a 1/4

T1 Primary Winding

Secondary Winding

= 18 Turns on a 1/4" coil form, center–tapped, #25 AWG = 2 Turns centered over Primary Winding @ 45 MHz

coil form

"

coil form

= 1 Turn @ 58 MHz

Slug

= Carbonyl E or J

L1 0.4 µH Q ≥ 100 0.3 µH Q ≥ 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

C1 50 pF to 160 pF 8.0 pF to 60 pF

C2 8.0 pF to 60 pF 3.0 pF to 35 pF

P

0.001

+12V

L

P

L

P

T1

RL = 50

µ

F

45 MHz

Output

(b) Alternate 45 MHz

Input

Ω

≥

20 kΩ.

RS = 50

V

AGC

µ

H .001

0.68

0.1

Ω

C1

5.1k

58 MHz

43 2 1

ML1350

56 7 8

0.001

L1

C1 C2 C3

14 Turns 28 S.W.G.

5.1k

Ferrite Core

5–25 pF 5–25 pF 5–25 pF

0.33

L1

µ

H

RL = 50

C2

C3

+12V

Ω

Output

www.lansdale.comPage 3 of 6 Issue A

ML1350

Legacy Applications Information

LANSDALE Semiconductor, Inc.

Figure 7. Power Gain and AGC Test Circuit

(455 kHz and 10.7 MHz)

Input

RS = 50

V

AGC

*Grounded for maximum power gain.

5.0

4.0

3.0

(mmhos),b

2.0

11 11

g

1.0

Ω

L1

C3

C2

C1

*

4321

MC1350

5.1k

5678

C7 C6

C5

12 V

C4

T1

Output

Ω

RS = 50

Component

C1 C2 C3 C4 C5 C8 C7 L1 T1

NOTES: 1. Primary: 120 µH (center–tapped)

NOTES: 1. Qu = 140 at 455 kHz NOTES: 1. Primary: Secondary turns ratio ≈ 13 NOTES: 2. Primary: 6.0 µH NOTES: 2. Primary winding = 24 turns #36 AWG NOTES: 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)

Frequency

455 kHz 10.7 MHz

– –

0.05 µF

0.001 µF

0.05 µF

0.05 µF –

Note 1

80–450 pF

5.0–80 pF

0.001 µF

0.05 µF 36 pF

0.05 µF

4.6 µF Note 2

Figure 8. Single–Ended Input Admittance Figure 9. Forward Transfer Admittance

500

400

b

11

300

<

Y21 (max gain)

| (mmhos)| Y

21

200

g

11

100

<

Y21 (–30 dB gain)

Y21

0

–40

–80

–120

–160

(DEGREES)Y

21

<

0

10 20 30 40 50 70 100

f, FREQUENCY (MHz)

Figure 10. Differential Output Admittance

1.0 (Single–ended output

admittance exhibits

0.8 twice these values.)

b

0.6

(mmho)

2222

, bg

0.4

0.2

0

10 20 30 40 50 70 100

f, FREQUENCY (MHz)

22

g

22

0

1.0 2.0 5.0 10 20 30 50 1003.0

–200

f, FREQUENCY (MHz)

Figure 11. Differential Output Voltage

8.0

7.0

6.0

5.0

V + + = 14 V

4.0

3.0

V + + = 12 V

2.0

1.0

DIFFERENTIAL OUTPUT VOLTAGE (V)

0

0 1020304050 607080

GAIN REDUCTION (dB)

www.lansdale.comPage 4 of 6 Issue A

ML1350

LANSDALE Semiconductor, Inc.

R3

10k 40%

AGC

Figure 12.

RF input

V2

10V

+V

R1

5.1k

MOD input

Typical application of a AM Modulator using ML1350

V1

12V

+V

C4

.1uF

C1

220pF

C2

.1uF

nifr

dng

3

4

ML1350

6

5

cga

C3

.1uF

ccv

2

7

nifr

dng

P1

R2

50

C7

1uF

P2

L2

U2

1uH

C5

47pF

T1

C6

470pF

RF out

P3

tuof

r

1

8

t u ofr

www.lansdale.comPage 5 of 6 Issue A

ML1350

NOTE 2

–T–

SEATING PLANE

H

58

–B–

14

F

–A–

C

N

D

K

G

0.13 (0.005) B

M

T

OUTLINE DIMENSIONS

P DIP 8 = PP

(ML1350PP)

PLASTIC PACKAGE

CASE 626–05

ISSUE K

L

J

M

A

M

LANSDALE Semiconductor, Inc.

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 ––– ––– N 0.76 1.01 0.030 0.040

INCHESMILLIMETERS

–T–

–A–

58

4X P

–B–

14

G

C

SEATING PLANE

8X D

K

0.25 (0.010)MB

SS

A0.25 (0.010)MTB

SO 8 = -5P

(ML1350-5P)

PLASTIC PACKAGE

CASE 751–05

(SO–8)

ISSUE N

M

R

X 45°

M

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI 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 DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.

DIM MIN MAX MIN MAX

F

J

A 4.80 5.00 0.189 0.196 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049

G 1.27 BSC 0.050 BSC

J 0.18 0.25 0.007 0.009 K 0.10 0.25 0.004 0.009

M

P 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019

INCHESMILLIMETERS

Lansdale Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lansdale does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. “Typical” parameters which may be provided in Lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by the customer’s technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc.

www.lansdale.comPage 6 of 6 Issue A