MITEL SL6140MP, SL6140MPTC, SL6140NA Datasheet

Features

● 400MHz Bandwidth (R

● High voltage Gain 45dB (R

● 70dB Gain Control Range

● High Output Level at Low Gain

● Surface Mount Plastic Package

● Low Cost

=50Ω)

L

=1kΩ)

L

Applications

● RF/IF Amplifier

● High Gain Mixers

● Video Amplifiers

Description

The SL6140 is an integrated broadband AGC amplifier,
designed on an advanced bipolar process. The
amplifier provides over 15dB of linear gain into 50Ω at
400MHz. Gain control is also provided with over 70dB
of dynamic range. The SL6140 offers over 45dB of
voltage gain with an RL of 1kΩ.

SL6140

SL6140

400MHz Wideband AGC Amplifier

DS2159 Issue no 5.0 July 1999

Ordering Information

SL6140/NA/MP Industrial temperature range

SL6140/NA/MPTC Tape and Reel

The SL6140 (Figure 3) is a high gain amplifier with an
AGC control capable of reducing the gain of the amplifier
by over 70dB. The gain is adjustable by applying a
voltage to the AGC input via an external resistor (R
the value of which adjusts the curve of gain reduction
versus control voltage (see Figure 4). As the output
stage of the amplifier is an open collector the maximum
voltage gain is determined by RL. With load resistance
of 1kΩ the single ended voltage gain is 45dB and with a
load resistance of 50Ω the voltage gain is 15dB (20log
V

OUT/VIN

). Another parameter that depends on the load
resistance is the bandwidth: 25MHz for RL = 1kΩ, as
compared with 400MHz for RL = 50Ω. RL is chosen to
give either the required bandwidth or voltage gain for the
circuit.

Figure 7 through to 10 show the typical S parameters for
the device. Figures 11 and 12 show the typical variation
in 3rd order intercept performance with AGC.

In any application, the substrate should be connected to
the most negative point in the circuit, usually to the same
point as pin 3.

miniature plastic package

AGC

10

),

AGC

INPUT

INPUT

R

AGC

10n

10n

+VCC

1.0 F

2

6

5

SL6140

4

37

Figure 1 Typical Application

8

1

RLR

+VCC

L

10n

OUTPUT

10n

OUTPUT

1

SL6140

OUTPUT

+V

CC

GROUND INPUT

INPUT

18

27

36

45

OUTPUT

GROUND

AGC INPUT

MP8

Figure 2 Pin Connections Diagram (top view)

Electrical Characteristics

T

= 25°C, VCC = 12V +5%, VIN = 1mV

amb

These characteristics are guaranteed over the following conditions (unless otherwise stated)

Characteristic

Supply current

Output stage current

Output current matching
(magnitude of difference of output
currents)

Pin

5,6,7

5,6

(sum)

5,6

, Frequency = 6MHz, Load (RL) = 10KOHms, R

RMS

Value

TypMin

19

5

7

1.0

Max

23

9

Units

mA

mA

mA

No input signal

No input signal

Conditions

= 22KOHm

AGC

AGC range

Voltage gain (single ended)

Bandwidth (-3dB)

Maximum output level (single
ended)

0dB AGC

-30dB AGC

Noise figure

Note. 1 Guaranteed but not tested.

2

5,6

5,6

5,6

5,6
5,6

5,6

60

40

Absolute Maximum Ratings

Supply voltage, V
Input voltage (differential) +5V
AGC supply V
Storage temperature -55°C to +150°C
Operating temperature range

SL6140 MP -40°C to +85°C

Chip operating temperature

SL6140 MP +150°C

CC

at 200mW

+18V

CC

75

45
55
15

25

400

3.5

3.5

5

Thermal Resistance

Chip-to-ambient

SL6140 MP 163°C/W

Chip-to-case

SL6140 MP 57°C/W

dB

dB
dB
dB

MHz

V p-p
V p-p

dB

See Figure 4 & Note 1
(VAGC = 0V to 10V)

R

= 1kΩ See Figure 5 & Note 1

L

Tuned input and output
R

= 50Ω

L

RL = 1kΩ See Figure 5
RL = 50Ω

Note 1
R

= 1kΩ. Note 1

L

Test CCT Figure 13

2

180

470
X 2

SL6140

2

V

CC

AGC

INPUT

INPUT

70

5

I/P

2k

4

6

66

180

470470

5k5k

2.1k1.1k1.1k

7k 12.1k

1.4k

5.6k

1.9k

45

2.8k 2.8k200 200

200

1

8

OUTPUT

OUTPUT

Figure 3 Full Circuit Diagram of SL6140

7

3

SUBSTRATE

GROUND

3